CData Cloud offers access to GraphQL across several standard services and protocols, in a cloud-hosted solution. Any application that can connect to a MySQL or SQL Server database can connect to GraphQL through CData Cloud.
CData Cloud allows you to standardize and configure connections to GraphQL as though it were any other OData endpoint, or standard SQL Server/MySQL database.
This page provides a guide to Establishing a Connection to GraphQL in CData Cloud, as well as information on the available resources, and a reference to the available connection properties.
Establishing a Connection shows how to authenticate to GraphQL and configure any necessary connection properties to create a database in CData Cloud
Accessing data from GraphQL through the available standard services and CData Cloud administration is documented in further details in the CData Cloud Documentation.
Connect to GraphQL by selecting the corresponding icon in the Database tab. Required properties are listed under Settings. The Advanced tab lists connection properties that are not typically required.
Set the following to connect:
To create GraphQL data sources on headless servers or other machines on which the Cloud cannot open a browser, you need to authenticate from another machine. Authentication is a two-step process.
Option 1: Obtain and Exchange a Verifier Code
Set the following properties on the headless machine:
You can then follow the steps below to authenticate from another machine and obtain the OAuthVerifier connection property.
On the headless machine, set the following connection properties to obtain the OAuth authentication values:
Connect to Data
After the OAuth settings file is generated, set the following properties to connect to data:
Option 2: Transfer OAuth Settings
Follow the steps below to install the Cloud on another machine, authenticate, and then transfer the resulting OAuth values.
On a second machine, install the Cloud and connect with the following properties set:
Test the connection to authenticate. The resulting authentication values are written, encrypted, to the location specified by OAuthSettingsLocation. After you have successfully tested the connection, copy the OAuth settings file to your headless machine. On the headless machine, set the following connection properties to connect to data:
If you want to use the Cloud with a user registered in a User Pool in AWS Cognito, set the following properties to authenticate:
This section shows how to control the various schemas that the Cloud offers to bridge the gap between relational SQL and GraphQL services.
GraphQL services offer a introspection query service which the Cloud can use to obtain view and column names.
All SCALAR mutation fields are exposed directly, and all object fields are expanded.
The Cloud will automatically scan for available Using Mutations. Given that there is no method provided by GraphQL for determining which mutations can be used for each table, each mutation is exposed as a stored procedure.
LIST fields are exposed as temporary tables (GraphQL tables of type TEMPORARY_TABLE). The discovered temporary tables can be obtained by querying the sys_tables and sys_tablecolumns system tables.
Operations details the process for configuring custom schema files. Setting up these custom schema files is a required step in establishing a connection to GraphQL data.
See System Tables to query the current table metadata.
By default, the Cloud will automatically read metadata from GraphQL.
GraphQL services offer a introspection query service which the Cloud can use to obtain view and column names.
A GraphQL introspection query service has a query object at its root. Other objects are nested into the root query object, which can in turn have their own nested objects.
The Cloud reads LIST or Relay Connection type objects as views. If a field is SCALAR, it's read as a column, and if a field is a simple OBJECT, it is expanded.
Set the metadata introspection depth as follows:
The Cloud will automatically scan for available mutations. Given that there is no method provided by GraphQL for determining which mutations can be used for each table, each mutation is exposed as a stored procedure. This replaces the traditional use of INSERT, UPDATE, and DELETE SQL statements when working with GraphQL.
All SCALAR mutation fields are exposed directly, and all object fields are expanded.
LIST fields are exposed as temporary tables (GraphQL tables of type TEMPORARY_TABLE). The discovered temporary tables can be obtained by querying the sys_tables and sys_tablecolumns system tables. These tables contain a RowId and ParentId field to denote the row and housing (parent) table of a given child table.
An example of a mutation is productCreate. Invoke mutations as a stored procedure after first loading the relevant child tables needed for the operation:
INSERT INTO productCreate_metafields#TEMP (namespace,key,value,type) VALUES ('MRproductInfo','ALU','449788022','string')
INSERT INTO productCreate_variants#TEMP (RowId,price,sku,inventoryManagement,weightUnit,weight,options,metafields,inventoryQuantities) VALUES (1,'39.99','38536314-0acb-4d3f-b8ff-a0f2014d2c75','SHOPIFY','POUNDS',1,'L,XL,XXL','productCreate_variants_metafields','productCreate_variants_inventoryQuantities')
INSERT INTO productCreate_variants_metafields#TEMP (ParentId,namespace,key,value,type) VALUES ('1','MRproductInfo','ALU','449788022-M-','string')
INSERT INTO productCreate_variants_metafields#TEMP (ParentId,namespace,key,value,type) VALUES ('1','MRproductInfo','ItemNumber','400000881201','string')
INSERT INTO productCreate_variants_inventoryQuantities#TEMP (ParentId,locationId,availableQuantity) VALUES ('1','gid://shopify/Location/1448280087',5)
INSERT INTO productCreate_media#TEMP (originalSource,alt,mediaContentType) VALUES ('https://static.nike.com/a/images/t_PDP_1280_v1/f_auto,q_auto:eco/qwqfyddzikcgc4ozwigp/revolution-5-road-running-shoes-szF7CS.png','Magic Shoes','IMAGE')
EXECUTE productCreate title='NIKE - 449788022', descriptionHtml='MEN''S SHOES 42-MENS L/S TEES',productType='Staging', vendor='NIKE', published='false', options='size,width',metafields='productCreate_metafields#TEMP', variants='productCreate_variants#TEMP', media='productCreate_media#TEMP'
Custom schemas are defined in configuration files. This chapter outlines the structure of these files.
Note: The GenerateSchemaFiles property enables you to persist table metadata in static schema files that are easy to customize (to persist your changes to column data types, for example). Set this property to "OnStart" to generate schema files for all tables in your database at connection.
Alternatively, set this property to "OnUse" to generate schemas as you execute SELECT queries to tables. It is also possible to create a specific schema file for a table using the CreateSchema stored procedure.
Tables and views are defined by authoring schema files in APIScript. APIScript is a simple configuration language that allows you to define the columns and the behavior of the table. It also has built-in Operations that enable you to process GraphQL. In addition to these data processing primitives, APIScript is a full-featured language with constructs for conditionals, looping, etc. However, as shown by the example schema, for most table definitions you will not need to use these features.
Below is a fully functional table schema that models the Labels table and contains all the components you will need to execute SQL to GraphQL data sources.
You can find more information on each of the components of a schema in Column Definitions, SELECT Execution.
<rsb:script xmlns:rsb="http://apiscript.com/ns?v1" xmlns:xs="http://www.cdata.com/ns/rsbscript/2" xmlns:other="http://apiscript.com/ns?v1">
<rsb:info title="Labels" desc="Lists information about the different labels you can apply on an issue." other:possiblePaths="{'path':'/repository/labels/edges/node','Name':{'path':'/repository/label'}}" other:paginationObjects="{'labels':{'cursorPath':'after','cursorType':'String','pageSizeArgumentPath':'first','pageSizeArgumentType':'Int','depth':'1','paginationType':'Cursor','isConnection':'True','pageInfo':['endCursor','hasNextPage','hasPreviousPage','startCursor']}}">
<attr name="Id" xs:type="string" key="true" other:relativePath="id" desc="The ID of the label." />
<attr name="RepositoryName" xs:type="string" other:relativePath="name" desc="The name of the repository." other:filter="name:=" other:argumenttype="String!" other:depth="1" references="Repositories.Name" />
<attr name="UserLogin" xs:type="string" desc="The login name of the user." other:filter="owner:=" other:argumenttype="String!" other:depth="1" references="Users.Login" other:mirror="true" other:canBeSliced="true" />
<attr name="Color" xs:type="string" other:relativePath="color" desc="Identifies the label color." />
<attr name="CreatedAt" xs:type="datetime" other:relativePath="createdAt" desc="Identifies the date and time when the label was created." other:orderby="CREATED_AT" />
<attr name="Description" xs:type="string" other:relativePath="description" desc="A brief description of this label." />
<attr name="IsDefault" xs:type="boolean" other:relativePath="isDefault" desc="Indicates whether or not this is a default label." />
<attr name="Name" xs:type="string" other:relativePath="name" desc="Identifies the label name." other:filter="name:=" other:argumenttype="String!" other:orderby="NAME" other:isPathFilter="true" />
<attr name="ResourcePath" xs:type="string" other:relativePath="resourcePath" desc="The HTTP path for this label." />
<attr name="UpdatedAt" xs:type="datetime" other:relativePath="updatedAt" desc="Identifies the date and time when the label was last updated." />
<attr name="Url" xs:type="string" other:relativePath="url" desc="The HTTP URL for this label." />
</rsb:info>
<rsb:script method="GET">
<rsb:push op="graphqladoSelect" />
</rsb:script>
</rsb:script>
The following example shows how to add static headers in the schema file. These headers are added to the request every time the schema file is called.
<rsb:script xmlns:rsb="http://apiscript.com/ns?v1" xmlns:xs="http://www.cdata.com/ns/rsbscript/2" xmlns:other="http://apiscript.com/ns?v1">
...
<input name="Ship1" other:headerName="DynamicValuedHeader" />
<input name="Ship2" other:headerName="DynamicValuedHeader" />
</rsb:info>
<api:set attr="Header:Name#1" value="StaticValuedHeader" />
<api:set attr="Header:Value#1" value="StaticValuedHeader__Value" />
The following example shows how to add dynamic headers in the schema file. These headers are added to the request every time the schema file is called.
<rsb:script xmlns:rsb="http://apiscript.com/ns?v1" xmlns:xs="http://www.cdata.com/ns/rsbscript/2" xmlns:other="http://apiscript.com/ns?v1">
...
<input name="Ship1" other:headerName="DynamicValuedHeader" />
<input name="Ship2" other:headerName="DynamicValuedHeader" />
<input name="Ship3" other:headerName="DynamicValuedHeader2" />
</rsb:info>
<api:set attr="Header:Name#1" value="DynamicValuedHeader" />
<api:set attr="Header:Value#1" value="[_input.Ship1] - [_input.Ship2]" />
SELECT * FROM [Table] WHERE [Ship1] = "Value1" AND [Ship2] = "Value2" AND [DynamicValuedHeader2] = "custom value"
In the above example, the value format of DynamicValuedHeader is parsed by the driver, but for DynamicValuedHeader2, it is the same as the value specified in the query.
The basic attributes of a column are the name of the column, the data type, whether the column is a primary key, the relative path and the depth. The Cloud uses the depth attribute to extract nodes from hierarchical data.
Mark up column attributes in the block of the schema file. You can also provide a description of each attribute using the desc property.
<rsb:script xmlns:rsb="http://apiscript.com/ns?v1" xmlns:xs="http://www.cdata.com/ns/rsbscript/2" xmlns:other="http://apiscript.com/ns?v1">
<rsb:info title="Labels" desc="Lists information about the different labels you can apply on an issue." other:possiblePaths="{'path':'/repository/labels/edges/node','Name':{'path':'/repository/label'}}" other:paginationObjects="{'labels':{'cursorPath':'after','cursorType':'String','pageSizeArgumentPath':'first','pageSizeArgumentType':'Int','depth':'1','paginationType':'Cursor','isConnection':'True','pageInfo':['endCursor','hasNextPage','hasPreviousPage','startCursor']}}">
<attr name="Id" xs:type="string" key="true" other:relativePath="id" desc="The ID of the label." />
<attr name="RepositoryName" xs:type="string" other:relativePath="name" desc="The name of the repository." other:filter="name:=" other:argumenttype="String!" other:depth="1" references="Repositories.Name" />
<attr name="UserLogin" xs:type="string" desc="The login name of the user." other:filter="owner:=" other:argumenttype="String!" other:depth="1" references="Users.Login" other:mirror="true" other:canBeSliced="true" />
<attr name="Color" xs:type="string" other:relativePath="color" desc="Identifies the label color." />
<attr name="CreatedAt" xs:type="datetime" other:relativePath="createdAt" desc="Identifies the date and time when the label was created." other:orderby="CREATED_AT" />
<attr name="Description" xs:type="string" other:relativePath="description" desc="A brief description of this label." />
<attr name="IsDefault" xs:type="boolean" other:relativePath="isDefault" desc="Indicates whether or not this is a default label." />
<attr name="Name" xs:type="string" other:relativePath="name" desc="Identifies the label name." other:filter="name:=" other:argumenttype="String!" other:orderby="NAME" other:isPathFilter="true" />
<attr name="ResourcePath" xs:type="string" other:relativePath="resourcePath" desc="The HTTP path for this label." />
<attr name="UpdatedAt" xs:type="datetime" other:relativePath="updatedAt" desc="Identifies the date and time when the label was last updated." />
<attr name="Url" xs:type="string" other:relativePath="url" desc="The HTTP URL for this label." />
</rsb:info>
<rsb:script method="GET">
<rsb:push op="graphqladoSelect" />
</rsb:script>
</rsb:script>
The following sections provide more detail on using paths to extract columns and rows. To see the column definitions in a complete schema, refer to Customizing Schemas.
The other:possiblePaths property is used to specify the base paths that select the column's value.
Base paths start with a '/' and contain the full path to the last GraphQL nested object.
<rsb:info title="Labels" desc="Lists information about the different labels you can apply to an issue." other:possiblePaths="{'path':'/repository/labels/edges/node','Name':{'path':'/repository/label'}}" other:paginationObjects="{'labels':{'cursorPath':'after','cursorType':'String','pageSizeArgumentPath':'first','pageSizeArgumentType':'Int','depth':'1''paginationType':'Cursor','isConnection':'True','pageInfo':['endCursor','hasNextPage','hasPreviousPage','startCursor']}}">
The following GraphQL query is based on the above script example:
{ # base path=/repository/labels/edges/node
repository {
labels {
edges {
node {
...
}
}
}
}
}
The other:relativePath property must be specified for each column. This property is used in conjuction with the other:possiblePaths property to build the GraphQL field path.
<attr name="Name" xs:type="string" other:relativePath="name" desc="Identifies the label name." />
Based on the above script example the Cloud will build the following GraphQL query:
{ # base path=/repository/labels/edges/node
repository { # depth=1
labels { # depth=2
edges {
node {
name # path=base path + relative path.
}
}
}
}
}
Use the other:depth property to specify an element inside a specific GraphQL object. The indexes are 1-based. If this attribute is not specified then the default value will be equal to the last nested GraphQL object.
<attr name="RepositoryName" xs:type="string" other:relativePath="name" desc="The name of the repository." other:depth="1" />
The following GraphQL query is built from the above script example:
{ # base path=/repository/labels/edges/node
repository { # depth=1
name # This is mapped to the RepositoryName column
labels { # depth=2
edges {
node {
...
}
}
}
}
}
Use the other:fragment property to specify a group of fields. This property can be used when the GraphQL server returns an array of objects and the Cloud may need to push this info as an aggregate.
<attr name="ColumnValues" xs:type="string" other:relativePath="column_values" desc="Column values." other:fragment="fragment ItemColumnValues on ColumnValue { id \\r\\n value }" />
Based on the above script example, the Cloud will build the following GraphQL query:
query {
items {
column_values {
...ItemColumnValues
}
}
}
fragment ItemColumnValues on ColumnValue {
id
value
}
Use the other:canbesliced property enable slicing behavior in the Cloud
For example,
SELECT * FROM Table WHERE Col IN ('1','2','3')
becomes
SELECT * FROM Table WHERE Col=1 SELECT * FROM Table WHERE Col=2 SELECT * FROM Table WHERE Col=3
Use the other:mirror property to reflect the value specified in the criteria. Use on columns that are not specified in the server response.
For example:
SELECT * FROM Table WHERE Col=X (If other:mirror=true the Cloud will artificially set the value of Col to X for every row.)
Use references to reference the key column of the parent table. Example: If there are two tables Orders and OrderLineItems and the OrderLineItems has a column OrderId, the references field for this column will be "Orders.Id".
Notes:
When a SELECT query is issued, the Cloud executes the GET method of the schema, which invokes the Cloud's built-in operations to process GraphQL. In the GET method, you have control over the request for data. The following procedures show several ways to use this: search the remote data, server-side, with SELECT WHERE, or implement paging.
The following sections show how to translate a SELECT WHERE statement into a GraphQL query to GraphQL APIs. The procedure uses the following statement:
SELECT * FROM <table> WHERE ModifiedAt < '2019-10-30 05:05:36.001'
If this filter is supported on the server via query parameters, you can use the other:filter property of the api:info column definition to specify the desired mapping. For the above query, the Cloud uses this property to map the modifiedAt < '<date>' filter to the query parameter that returns results modified before a given date, and the modifedAt > '<date>' filter to the query parameter that filters the results modified after that date.
To perform this mapping, the Cloud would use the following markup for the modifedAt column definition:
<attr name="ModifiedAt" xs:type="datetime" other:relativePath="modifiedAt" other:argumentType="DateTime" description="When the vendor was last modified." other:filter="modifiedAtAfter:>;modifiedAtBefore:<" />
This query results in the following postdata:
{
"variables": {
"ModifiedAt_modifiedAtBefore": "2019-10-30T09:05:36.001Z"
},
"query": "query($ModifiedAt_modifiedAtBefore:DateTime) {\r\nbusinesses {\r\nedges {\r\nnode {\r\ncustomers(modifiedAtBefore:$ModifiedAt_modifiedAtBefore) {\r\nedges {\r\nnode {\r\nid\r\nmodifiedAt\r\n}\r\n}\r\npageInfo {\r\ntotalPages\r\ncurrentPage\r\n}\r\n}\r\nid\r\n}\r\n}\r\npageInfo {\r\ntotalPages\r\ncurrentPage\r\n}\r\n}\r\n}\r\n"
}
Ex: other:possiblepaths="{'path':'/businesses/edges/node','id':{'path':'/business'}}"
<attr name="Id" xs:type="string" key="true" other:relativePath="id" other:isPathFilter="true" other:filter="id:=" />
SELECT Id, Name, CreatedAt FROM Businesses WHERE Id = 'QnVzaW5M6ZTY4ZDA2MmQtYzkzZS00MGZkLTk4YWUtNDg2YzcxMmExNzFl'is converted to the postdata:
{
"variables": {
"Id_id": "QnVzaW5M6ZTY4ZDA2MmQtYzkzZS00MGZkLTk4YWUtNDg2YzcxMmExNzFl"
},
"query": "query($Id_id:ID) {\r\nbusiness(id:$Id_id) {\r\nid\r\nname\r\ncreatedAt\r\n}\r\n}\r\n"
}
The driver supports two pagination modes.
other:paginationObjects = "{
'labels': {
'cursorPath': 'after',
'cursorType': 'String',
'pageSizeArgumentPath': 'first',
'pageSizeArgumentType': 'Int',
'depth':'1',
'paginationType': 'Cursor',
'isConnection': 'True',
'pageInfo': ['endCursor', 'hasNextPage', 'hasPreviousPage', 'startCursor']
}
}"
The following postdata is generated after processing the other:paginationObjects table extra info specified above:
{
"variables": {
"UserLogin_owner": "testaccount71",
"RepositoryName_name": "test",
"first": <Pagesize>
},
"query": "query($UserLogin_owner:String!, $RepositoryName_name:String!, $first:Int) {\r\nrepository(owner:$UserLogin_owner, name:$RepositoryName_name) {\r\nlabels(first:$first) {\r\nedges {\r\nnode {\r\nid\r\ncolor\r\ncreatedAt\r\ndescription\r\nisDefault\r\nname\r\nresourcePath\r\nupdatedAt\r\nurl\r\n}\r\n}\r\npageInfo {\r\nendCursor\r\nhasNextPage\r\n}\r\n}\r\nname\r\n}\r\n}\r\n"
}
other:paginationObjects="{
'businesses': {
'offsetArgumentPath': 'page',
'offsetArgumentType': 'Int',
'pageSizeArgumentPath': 'pageSize',
'pageSizeArgumentType': 'Int',
'depth':'1',
'paginationType': 'Offset',
'isConnectionObject': 'True',
'pageInfo': ['currentPage', 'totalPages', 'totalCount']
}
}"
The following postdata is generated after processing the other:paginationObjects table extra info specified above:
{
"variables": {
"pageSize_1": <Pagesize>
},
"query": "query($pageSize_1:Int) {\r\nbusinesses(pageSize:$pageSize_1) {\r\nedges {\r\nnode {\r\nid\r\n}\r\n}\r\npageInfo {\r\ntotalPages\r\ncurrentPage\r\n}\r\n}\r\n}\r\n"
}other:paginationObjects="{
'businesses': {
'offsetArgumentPath': 'query/pagination/page',
'offsetArgumentType': 'custom_query',
'pageSizeArgumentPath': 'query/pagination/pageSize',
'pageSizeArgumentType': 'custom_query',
'depth':'1',
'paginationType': 'Offset',
'isConnectionObject': 'True',
'pageInfo': ['currentPage', 'totalPages', 'totalCount']
}
}"
The following postdata is generated after processing the other:paginationObjects table extra info specified above:
{
"variables": {
"query": {
"pagination": {
"pageSize":<Pagesize>
}
}
},
"query": "query($query:custom_query) {\r\nbusinesses(query:$query) {\r\nedges {\r\nnode {\r\nid\r\n}\r\n}\r\npageInfo {\r\ntotalPages\r\ncurrentPage\r\n}\r\n}\r\n}\r\n"
}
<rsb:info title="Labels" desc="Lists information about the different labels you can apply on an issue." other:orderByFormat="{field: {orderByArgumentValue}, direction: {sortOrder}}">
<attr name="CreatedAt" xs:type="datetime" other:relativePath="createdAt" other:orderByFormat="{field: {orderByArgumentValue}, direction: {sortOrder}}" other:orderBy="orderBy:CREATED_AT" /><attr name="CreatedAt" xs:type="datetime" other:relativePath="createdAt" other:orderBy="orderBy:CREATED_AT" />
SELECT Id FROM Labels ORDER BY CreatedAt ASCis converted to this postdata:
{
"variables": {
"first": <Pagesize>
},
"query": "query($first:Int) {\r\nrepository {\r\nlabels(sort:{field: CREATED_AT, direction: ASC}, first:$first) {\r\nedges {\r\nnode {\r\nid\r\n}\r\n}\r\npageInfo {\r\nendCursor\r\nhasNextPage\r\n}\r\n}\r\n}\r\n}\r\n"
}
The Cloud has high-performance operations for processing GraphQL data sources. These operations are platform neutral: Schema files that invoke these operations can be used in both .NET and Java. You can also extend the Cloud with your own operations written in .NET or Java.
The Cloud has the following operations:
| Operation Name | Description | |
| OAuthGetAccessToken | For OAuth 1.0, exchange a request token for an access token. For OAuth 2.0, get an access token or get a new access token with the refresh token. | |
| OAuthGetUserAuthorizationURL | Generates the user authorization URL. OAuth 2.0 will not access the network in this operation. |
The OAuthGetAccessToken operation is an APIScript operation that is used to facilitate the OAuth authentication and refresh flows.
The Cloud includes stored procedures that invoke this operation to complete the OAuth exchange. The following example schema briefly lists some of the typically required inputs before the following sections explain them in more detail.
Invoke the OAuthGetAccessToken with the GetOAuthAccessToken stored procedure. The following inputs are required for most data sources and will provide default values for the connection properties of the same name.
<api:script xmlns:api="http://www.rssbus.com/ns/rsbscript/2">
<api:info title="GetOAuthAccessToken" description="Obtains the OAuth access token to be used for authentication with various APIs." >
<input name="AuthMode" desc="The OAuth flow. APP or WEB." />
<input name="CallbackURL" desc="The URL to be used as a trusted redirect URL, where the user will return with the token that verifies that they have granted your app access. " />
<input name="OAuthAccessToken" desc="The request token. OAuth 1.0 only." />
<input name="OAuthAccessTokenSecret" desc="The request token secret. OAuth 1.0 only." />
<input name="Verifier" desc="The verifier code obtained when the user grants permissions to your app." />
<output name="OAuthAccessToken" desc="The access token." />
<output name="OAuthTokenSecret" desc="The access token secret." />
<output name="OAuthRefreshToken" desc="A token that may be used to obtain a new access token." />
</api:info>
<!-- Set OAuthVersion to 1.0 or 2.0. -->
<api:set attr="OAuthVersion" value="MyOAuthVersion" />
<!-- Set RequestTokenURL to the URL where the request for the request token is made. OAuth 1.0 only.-->
<api:set attr="OAuthRequestTokenURL" value="http://MyOAuthRequestTokenURL" />
<!-- Set OAuthAuthorizationURL to the URL where the user logs into the service and grants permissions to the application. -->
<api:set attr="OAuthAuthorizationURL" value="http://MyOAuthAuthorizationURL" />
<!-- Set OAuthAccessTokenURL to the URL where the request for the access token is made. -->
<api:set attr="OAuthAccessTokenURL" value="http://MyOAuthAccessTokenURL" />
<!-- Set GrantType to the authorization grant type. OAuth 2.0 only. -->
<api:set attr="GrantType" value="CODE" />
<!-- Set SignMethod to the signature method used to calculate the signature of the request. OAuth 1.0 only.-->
<api:set attr="SignMethod" value="HMAC-SHA1" />
<api:call op="oauthGetAccessToken">
<api:push/>
</api:call>
</api:script>
You can also use OAuthGetAccessToken to refresh the access token by providing the following inputs:
<api:script xmlns:api="http://www.rssbus.com/ns/rsbscript/2">
<api:info title="RefreshOAuthAccessToken" description="Refreshes the OAuth access token used for authentication." >
<input name="OAuthRefreshToken" desc="A token that may be used to obtain a new access token." />
<output name="OAuthAccessToken" desc="The authentication token returned." />
<output name="OAuthTokenSecret" desc="The authentication token secret returned. OAuth 1.0 only." />
<output name="OAuthRefreshToken" desc="A token that may be used to obtain a new access token." />
<output name="ExpiresIn" desc="The remaining lifetime on the access token." />
</api:info>
<!-- Set OAuthVersion to 1.0 or 2.0. -->
<api:set attr="OAuthVersion" value="MyOAuthVersion" />
<!-- Set GrantType to REFRESH. OAuth 2.0 only. -->
<api:set attr="GrantType" value="REFRESH" />
<!-- Set SignMethod to the signature method used to calculate the signature of the request. OAuth 1.0 only.-->
<api:set attr="SignMethod" value="HMAC-SHA1" />
<!-- Set OAuthAccessTokenURL to the URL where the request for the access token is made. -->
<api:set attr="OAuthAccessTokenURL" value="http://MyOAuthAccessTokenURL" />
<!-- Set AuthMode to 'WEB' when calling RefreshOAuthAccessToken -->
<api:set attr="AuthMode" value="WEB"/>
<api:call op="oauthGetAccessToken">
<api:push/>
</api:call>
</api:script>
The OAuthGetUserAuthorizationURL is an APIScript operation that is used to facilitate the OAuth authentication flow for Web apps, for offline apps, and in situations where the Cloud is not allowed to open a Web browser. To pass the needed inputs to this operation, define the GetOAuthAuthorizationURL stored procedure. The Cloud can call this internally.
Define stored procedures in .rsb files with the same file name as the schema's title. The example schema briefly lists some of the typically required inputs before the following sections explain them in more detail.
Call OAuthGetUserAuthorizationURL in the GetOAuthAuthorizationURL stored procedure.
<api:script xmlns:api="http://www.rssbus.com/ns/rsbscript/2">
<api:info title="Get OAuth Authorization URL" description="Obtains the OAuth authorization URL used for authentication with various APIs." >
<input name="CallbackURL" desc="The URL to be used as a trusted redirect URL, where the user will return with the token that verifies that they have granted your app access. " />
<output name="URL" desc="The URL where the user logs in and is prompted to grant permissions to the app. " />
<output name="OAuthAccessToken" desc="The request token. OAuth 1.0 only." />
<output name="OAuthTokenSecret" desc="The request token secret. OAuth 1.0 only." />
</api:info>
<!-- Set OAuthVersion to 1.0 or 2.0. -->
<api:set attr="OAuthVersion" value="MyOAuthVersion" />
<!-- Set ResponseType to the desired authorization grant type. OAuth 2.0 only.-->
<api:set attr="ResponseType" value="code" />
<!-- Set SignMethod to the signature method used to calculate the signature. OAuth 1.0 only.-->
<api:set attr="SignMethod" value="HMAC-SHA1" />
<!-- Set OAuthAuthorizationURL to the URL where the user logs into the service and grants permissions to the application. -->
<api:set attr="OAuthAuthorizationURL" value="http://MyOAuthAuthorizationURL" />
<!-- Set OAuthAccessTokenURL to the URL where the request for the access token is made. -->
<api:set attr="OAuthAccessTokenURL" value="http://MyOAuthAccessTokenURL"/>
<!-- Set RequestTokenURL to the URL where the request for the request token is made. OAuth 1.0 only.-->
<api:set attr="OAuthRequestTokenURL" value="http://MyOAuthRequestTokenURL" />
<api:call op="oauthGetUserAuthorizationUrl">
<api:push/>
</api:call>
</api:script>
<p>
You can query the system tables described in this section to access schema information, information on data source functionality, and batch operation statistics.
The following tables return database metadata for GraphQL:
The following tables return information about how to connect to and query the data source:
The following table returns query statistics for data modification queries:
Lists the available databases.
The following query retrieves all databases determined by the connection string:
SELECT * FROM sys_catalogs
| Name | Type | Description |
| CatalogName | String | The database name. |
Lists the available schemas.
The following query retrieves all available schemas:
SELECT * FROM sys_schemas
| Name | Type | Description |
| CatalogName | String | The database name. |
| SchemaName | String | The schema name. |
Lists the available tables.
The following query retrieves the available tables and views:
SELECT * FROM sys_tables
| Name | Type | Description |
| CatalogName | String | The database containing the table or view. |
| SchemaName | String | The schema containing the table or view. |
| TableName | String | The name of the table or view. |
| TableType | String | The table type (table or view). |
| Description | String | A description of the table or view. |
| IsUpdateable | Boolean | Whether the table can be updated. |
Describes the columns of the available tables and views.
The following query returns the columns and data types for the Users table:
SELECT ColumnName, DataTypeName FROM sys_tablecolumns WHERE TableName='Users'
| Name | Type | Description |
| CatalogName | String | The name of the database containing the table or view. |
| SchemaName | String | The schema containing the table or view. |
| TableName | String | The name of the table or view containing the column. |
| ColumnName | String | The column name. |
| DataTypeName | String | The data type name. |
| DataType | Int32 | An integer indicating the data type. This value is determined at run time based on the environment. |
| Length | Int32 | The storage size of the column. |
| DisplaySize | Int32 | The designated column's normal maximum width in characters. |
| NumericPrecision | Int32 | The maximum number of digits in numeric data. The column length in characters for character and date-time data. |
| NumericScale | Int32 | The column scale or number of digits to the right of the decimal point. |
| IsNullable | Boolean | Whether the column can contain null. |
| Description | String | A brief description of the column. |
| Ordinal | Int32 | The sequence number of the column. |
| IsAutoIncrement | String | Whether the column value is assigned in fixed increments. |
| IsGeneratedColumn | String | Whether the column is generated. |
| IsHidden | Boolean | Whether the column is hidden. |
| IsArray | Boolean | Whether the column is an array. |
| IsReadOnly | Boolean | Whether the column is read-only. |
| IsKey | Boolean | Indicates whether a field returned from sys_tablecolumns is the primary key of the table. |
Lists the available stored procedures.
The following query retrieves the available stored procedures:
SELECT * FROM sys_procedures
| Name | Type | Description |
| CatalogName | String | The database containing the stored procedure. |
| SchemaName | String | The schema containing the stored procedure. |
| ProcedureName | String | The name of the stored procedure. |
| Description | String | A description of the stored procedure. |
| ProcedureType | String | The type of the procedure, such as PROCEDURE or FUNCTION. |
Describes stored procedure parameters.
The following query returns information about all of the input parameters for the SelectEntries stored procedure:
SELECT * FROM sys_procedureparameters WHERE ProcedureName='SelectEntries' AND Direction=1 OR Direction=2
| Name | Type | Description |
| CatalogName | String | The name of the database containing the stored procedure. |
| SchemaName | String | The name of the schema containing the stored procedure. |
| ProcedureName | String | The name of the stored procedure containing the parameter. |
| ColumnName | String | The name of the stored procedure parameter. |
| Direction | Int32 | An integer corresponding to the type of the parameter: input (1), input/output (2), or output(4). input/output type parameters can be both input and output parameters. |
| DataTypeName | String | The name of the data type. |
| DataType | Int32 | An integer indicating the data type. This value is determined at run time based on the environment. |
| Length | Int32 | The number of characters allowed for character data. The number of digits allowed for numeric data. |
| NumericPrecision | Int32 | The maximum precision for numeric data. The column length in characters for character and date-time data. |
| NumericScale | Int32 | The number of digits to the right of the decimal point in numeric data. |
| IsNullable | Boolean | Whether the parameter can contain null. |
| IsRequired | Boolean | Whether the parameter is required for execution of the procedure. |
| IsArray | Boolean | Whether the parameter is an array. |
| Description | String | The description of the parameter. |
| Ordinal | Int32 | The index of the parameter. |
Describes the primary and foreign keys.
The following query retrieves the primary key for the Users table:
SELECT * FROM sys_keycolumns WHERE IsKey='True' AND TableName='Users'
| Name | Type | Description |
| CatalogName | String | The name of the database containing the key. |
| SchemaName | String | The name of the schema containing the key. |
| TableName | String | The name of the table containing the key. |
| ColumnName | String | The name of the key column. |
| IsKey | Boolean | Whether the column is a primary key in the table referenced in the TableName field. |
| IsForeignKey | Boolean | Whether the column is a foreign key referenced in the TableName field. |
| PrimaryKeyName | String | The name of the primary key. |
| ForeignKeyName | String | The name of the foreign key. |
| ReferencedCatalogName | String | The database containing the primary key. |
| ReferencedSchemaName | String | The schema containing the primary key. |
| ReferencedTableName | String | The table containing the primary key. |
| ReferencedColumnName | String | The column name of the primary key. |
Describes the foreign keys.
The following query retrieves all foreign keys which refer to other tables:
SELECT * FROM sys_foreignkeys WHERE ForeignKeyType = 'FOREIGNKEY_TYPE_IMPORT'
| Name | Type | Description |
| CatalogName | String | The name of the database containing the key. |
| SchemaName | String | The name of the schema containing the key. |
| TableName | String | The name of the table containing the key. |
| ColumnName | String | The name of the key column. |
| PrimaryKeyName | String | The name of the primary key. |
| ForeignKeyName | String | The name of the foreign key. |
| ReferencedCatalogName | String | The database containing the primary key. |
| ReferencedSchemaName | String | The schema containing the primary key. |
| ReferencedTableName | String | The table containing the primary key. |
| ReferencedColumnName | String | The column name of the primary key. |
| ForeignKeyType | String | Designates whether the foreign key is an import (points to other tables) or export (referenced from other tables) key. |
Describes the primary keys.
The following query retrieves the primary keys from all tables and views:
SELECT * FROM sys_primarykeys
| Name | Type | Description |
| CatalogName | String | The name of the database containing the key. |
| SchemaName | String | The name of the schema containing the key. |
| TableName | String | The name of the table containing the key. |
| ColumnName | String | The name of the key column. |
| KeySeq | String | The sequence number of the primary key. |
| KeyName | String | The name of the primary key. |
Describes the available indexes. By filtering on indexes, you can write more selective queries with faster query response times.
The following query retrieves all indexes that are not primary keys:
SELECT * FROM sys_indexes WHERE IsPrimary='false'
| Name | Type | Description |
| CatalogName | String | The name of the database containing the index. |
| SchemaName | String | The name of the schema containing the index. |
| TableName | String | The name of the table containing the index. |
| IndexName | String | The index name. |
| ColumnName | String | The name of the column associated with the index. |
| IsUnique | Boolean | True if the index is unique. False otherwise. |
| IsPrimary | Boolean | True if the index is a primary key. False otherwise. |
| Type | Int16 | An integer value corresponding to the index type: statistic (0), clustered (1), hashed (2), or other (3). |
| SortOrder | String | The sort order: A for ascending or D for descending. |
| OrdinalPosition | Int16 | The sequence number of the column in the index. |
Returns information on the available connection properties and those set in the connection string.
The following query retrieves all connection properties that have been set in the connection string or set through a default value:
SELECT * FROM sys_connection_props WHERE Value <> ''
| Name | Type | Description |
| Name | String | The name of the connection property. |
| ShortDescription | String | A brief description. |
| Type | String | The data type of the connection property. |
| Default | String | The default value if one is not explicitly set. |
| Values | String | A comma-separated list of possible values. A validation error is thrown if another value is specified. |
| Value | String | The value you set or a preconfigured default. |
| Required | Boolean | Whether the property is required to connect. |
| Category | String | The category of the connection property. |
| IsSessionProperty | String | Whether the property is a session property, used to save information about the current connection. |
| Sensitivity | String | The sensitivity level of the property. This informs whether the property is obfuscated in logging and authentication forms. |
| PropertyName | String | A camel-cased truncated form of the connection property name. |
| Ordinal | Int32 | The index of the parameter. |
| CatOrdinal | Int32 | The index of the parameter category. |
| Hierarchy | String | Shows dependent properties associated that need to be set alongside this one. |
| Visible | Boolean | Informs whether the property is visible in the connection UI. |
| ETC | String | Various miscellaneous information about the property. |
Describes the SELECT query processing that the Cloud can offload to the data source.
See SQL Compliance for SQL syntax details.
Below is an example data set of SQL capabilities. Some aspects of SELECT functionality are returned in a comma-separated list if supported; otherwise, the column contains NO.
| Name | Description | Possible Values |
| AGGREGATE_FUNCTIONS | Supported aggregation functions. | AVG, COUNT, MAX, MIN, SUM, DISTINCT |
| COUNT | Whether COUNT function is supported. | YES, NO |
| IDENTIFIER_QUOTE_OPEN_CHAR | The opening character used to escape an identifier. | [ |
| IDENTIFIER_QUOTE_CLOSE_CHAR | The closing character used to escape an identifier. | ] |
| SUPPORTED_OPERATORS | A list of supported SQL operators. | =, >, <, >=, <=, <>, !=, LIKE, NOT LIKE, IN, NOT IN, IS NULL, IS NOT NULL, AND, OR |
| GROUP_BY | Whether GROUP BY is supported, and, if so, the degree of support. | NO, NO_RELATION, EQUALS_SELECT, SQL_GB_COLLATE |
| OJ_CAPABILITIES | The supported varieties of outer joins supported. | NO, LEFT, RIGHT, FULL, INNER, NOT_ORDERED, ALL_COMPARISON_OPS |
| OUTER_JOINS | Whether outer joins are supported. | YES, NO |
| SUBQUERIES | Whether subqueries are supported, and, if so, the degree of support. | NO, COMPARISON, EXISTS, IN, CORRELATED_SUBQUERIES, QUANTIFIED |
| STRING_FUNCTIONS | Supported string functions. | LENGTH, CHAR, LOCATE, REPLACE, SUBSTRING, RTRIM, LTRIM, RIGHT, LEFT, UCASE, SPACE, SOUNDEX, LCASE, CONCAT, ASCII, REPEAT, OCTET, BIT, POSITION, INSERT, TRIM, UPPER, REGEXP, LOWER, DIFFERENCE, CHARACTER, SUBSTR, STR, REVERSE, PLAN, UUIDTOSTR, TRANSLATE, TRAILING, TO, STUFF, STRTOUUID, STRING, SPLIT, SORTKEY, SIMILAR, REPLICATE, PATINDEX, LPAD, LEN, LEADING, KEY, INSTR, INSERTSTR, HTML, GRAPHICAL, CONVERT, COLLATION, CHARINDEX, BYTE |
| NUMERIC_FUNCTIONS | Supported numeric functions. | ABS, ACOS, ASIN, ATAN, ATAN2, CEILING, COS, COT, EXP, FLOOR, LOG, MOD, SIGN, SIN, SQRT, TAN, PI, RAND, DEGREES, LOG10, POWER, RADIANS, ROUND, TRUNCATE |
| TIMEDATE_FUNCTIONS | Supported date/time functions. | NOW, CURDATE, DAYOFMONTH, DAYOFWEEK, DAYOFYEAR, MONTH, QUARTER, WEEK, YEAR, CURTIME, HOUR, MINUTE, SECOND, TIMESTAMPADD, TIMESTAMPDIFF, DAYNAME, MONTHNAME, CURRENT_DATE, CURRENT_TIME, CURRENT_TIMESTAMP, EXTRACT |
| REPLICATION_SKIP_TABLES | Indicates tables skipped during replication. | |
| REPLICATION_TIMECHECK_COLUMNS | A string array containing a list of columns which will be used to check for (in the given order) to use as a modified column during replication. | |
| IDENTIFIER_PATTERN | String value indicating what string is valid for an identifier. | |
| SUPPORT_TRANSACTION | Indicates if the provider supports transactions such as commit and rollback. | YES, NO |
| DIALECT | Indicates the SQL dialect to use. | |
| KEY_PROPERTIES | Indicates the properties which identify the uniform database. | |
| SUPPORTS_MULTIPLE_SCHEMAS | Indicates if multiple schemas may exist for the provider. | YES, NO |
| SUPPORTS_MULTIPLE_CATALOGS | Indicates if multiple catalogs may exist for the provider. | YES, NO |
| DATASYNCVERSION | The CData Data Sync version needed to access this driver. | Standard, Starter, Professional, Enterprise |
| DATASYNCCATEGORY | The CData Data Sync category of this driver. | Source, Destination, Cloud Destination |
| SUPPORTSENHANCEDSQL | Whether enhanced SQL functionality beyond what is offered by the API is supported. | TRUE, FALSE |
| SUPPORTS_BATCH_OPERATIONS | Whether batch operations are supported. | YES, NO |
| SQL_CAP | All supported SQL capabilities for this driver. | SELECT, INSERT, DELETE, UPDATE, TRANSACTIONS, ORDERBY, OAUTH, ASSIGNEDID, LIMIT, LIKE, BULKINSERT, COUNT, BULKDELETE, BULKUPDATE, GROUPBY, HAVING, AGGS, OFFSET, REPLICATE, COUNTDISTINCT, JOINS, DROP, CREATE, DISTINCT, INNERJOINS, SUBQUERIES, ALTER, MULTIPLESCHEMAS, GROUPBYNORELATION, OUTERJOINS, UNIONALL, UNION, UPSERT, GETDELETED, CROSSJOINS, GROUPBYCOLLATE, MULTIPLECATS, FULLOUTERJOIN, MERGE, JSONEXTRACT, BULKUPSERT, SUM, SUBQUERIESFULL, MIN, MAX, JOINSFULL, XMLEXTRACT, AVG, MULTISTATEMENTS, FOREIGNKEYS, CASE, LEFTJOINS, COMMAJOINS, WITH, LITERALS, RENAME, NESTEDTABLES, EXECUTE, BATCH, BASIC, INDEX |
| PREFERRED_CACHE_OPTIONS | A string value specifies the preferred cacheOptions. | |
| ENABLE_EF_ADVANCED_QUERY | Indicates if the driver directly supports advanced queries coming from Entity Framework. If not, queries will be handled client side. | YES, NO |
| PSEUDO_COLUMNS | A string array indicating the available pseudo columns. | |
| MERGE_ALWAYS | If the value is true, The Merge Mode is forcibly executed in Data Sync. | TRUE, FALSE |
| REPLICATION_MIN_DATE_QUERY | A select query to return the replicate start datetime. | |
| REPLICATION_MIN_FUNCTION | Allows a provider to specify the formula name to use for executing a server side min. | |
| REPLICATION_START_DATE | Allows a provider to specify a replicate startdate. | |
| REPLICATION_MAX_DATE_QUERY | A select query to return the replicate end datetime. | |
| REPLICATION_MAX_FUNCTION | Allows a provider to specify the formula name to use for executing a server side max. | |
| IGNORE_INTERVALS_ON_INITIAL_REPLICATE | A list of tables which will skip dividing the replicate into chunks on the initial replicate. | |
| CHECKCACHE_USE_PARENTID | Indicates whether the CheckCache statement should be done against the parent key column. | TRUE, FALSE |
| CREATE_SCHEMA_PROCEDURES | Indicates stored procedures that can be used for generating schema files. |
The following query retrieves the operators that can be used in the WHERE clause:
SELECT * FROM sys_sqlinfo WHERE Name = 'SUPPORTED_OPERATORS'
Note that individual tables may have different limitations or requirements on the WHERE clause; refer to the Data Model section for more information.
| Name | Type | Description |
| NAME | String | A component of SQL syntax, or a capability that can be processed on the server. |
| VALUE | String | Detail on the supported SQL or SQL syntax. |
Returns information about attempted modifications.
The following query retrieves the Ids of the modified rows in a batch operation:
SELECT * FROM sys_identity
| Name | Type | Description |
| Id | String | The database-generated Id returned from a data modification operation. |
| Batch | String | An identifier for the batch. 1 for a single operation. |
| Operation | String | The result of the operation in the batch: INSERTED, UPDATED, or DELETED. |
| Message | String | SUCCESS or an error message if the update in the batch failed. |
Describes the available system information.
The following query retrieves all columns:
SELECT * FROM sys_information
| Name | Type | Description |
| Product | String | The name of the product. |
| Version | String | The version number of the product. |
| Datasource | String | The name of the datasource the product connects to. |
| NodeId | String | The unique identifier of the machine where the product is installed. |
| HelpURL | String | The URL to the product's help documentation. |
| License | String | The license information for the product. (If this information is not available, the field may be left blank or marked as 'N/A'.) |
| Location | String | The file path location where the product's library is stored. |
| Environment | String | The version of the environment or rumtine the product is currently running under. |
| DataSyncVersion | String | The tier of CData Sync required to use this connector. |
| DataSyncCategory | String | The category of CData Sync functionality (e.g., Source, Destination). |
Stored procedures are function-like interfaces that extend the functionality of the Cloud beyond simple SELECT operations with GraphQL.
Stored procedures accept a list of parameters, perform their intended function, and then return any relevant response data from GraphQL, along with an indication of whether the procedure succeeded or failed.
| Name | Description |
The connection string properties are the various options that can be used to establish a connection. This section provides a complete list of the options you can configure in the connection string for this provider. Click the links for further details.
For more information on establishing a connection, see Establishing a Connection.
| Property | Description |
| AuthScheme | The type of authentication to use when connecting to remote services. |
| URL | The URL of the GraphQL service. |
| User | Specifies the user ID of the authenticating GraphQL user account. |
| Password | Specifies the password of the authenticating user account. |
| Property | Description |
| AWSCognitoRegion | The hosting region for AWS Cognito. |
| AWSUserPoolId | The User Pool Id. |
| AWSUserPoolClientAppId | The User Pool Client App Id. |
| AWSUserPoolClientAppSecret | Optional. The User Pool Client App Secret. |
| Property | Description |
| OAuthClientId | Specifies the client Id that was assigned the custom OAuth application was created. (Also known as the consumer key.) This ID registers the custom application with the OAuth authorization server. |
| OAuthClientSecret | Specifies the client secret that was assigned when the custom OAuth application was created. (Also known as the consumer secret ). This secret registers the custom application with the OAuth authorization server. |
| OAuthGrantType | Specifies the grant type for the chosen OAuth flow. This value should be the same as the grant_type that was set during OAuth custom application creation. |
| OAuthAuthorizationURL | The authorization URL for the OAuth service. |
| OAuthAccessTokenURL | The URL to retrieve the OAuth access token from. |
| AuthToken | The authentication token used to request and obtain the OAuth Access Token. |
| AuthKey | The authentication secret used to request and obtain the OAuth Access Token. |
| Property | Description |
| SSLServerCert | Specifies the certificate to be accepted from the server when connecting using TLS/SSL. |
| Property | Description |
| Verbosity | Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5. |
| Property | Description |
| BrowsableSchemas | Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC . |
| ExpandArgumentsDepth | This property is used to determine how far the provider should search for columns inside the arguments of type INPUT_OBJECT. |
| ExpandTablesDepth | This property is used to determine the depth of the child tables. |
| ExpandTemporaryTablesDepth | This property is used to determine the depth of the child temporary tables. Only works if ExposeDynamicProcedures is set to true. |
| ExpandColumnsDepth | This property is used to determine how far the provider should search for columns inside the GraphQL objects. |
| IncludeDeprecatedMetadata | This property is used to determine whether the provider should expose deprecated tables and columns or not. |
| ExposeDynamicProcedures | This property is used to determine whether the provider should expose mutations as dynamic procedures or not. |
| ExposeObjectTables | This property is used to determine the extent to which the provider exposes GraphQL object type fields as tables. |
| Property | Description |
| CustomHeaders | Specifies additional HTTP headers to append to the request headers created from other properties, such as ContentType and From. Use this property to customize requests for specialized or nonstandard APIs. |
| MaxRows | Specifies the maximum rows returned for queries without aggregation or GROUP BY. |
| Pagesize | The maximum number of results to return per page from GraphQL. |
| PseudoColumns | Specifies the pseudocolumns to expose as table columns. Use the format 'TableName=ColumnName;TableName=ColumnName'. The default is an empty string, which disables this property. |
| Timeout | Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. The default is 60 seconds. Set to 0 to disable the timeout. |
This section provides a complete list of the Authentication properties you can configure in the connection string for this provider.
| Property | Description |
| AuthScheme | The type of authentication to use when connecting to remote services. |
| URL | The URL of the GraphQL service. |
| User | Specifies the user ID of the authenticating GraphQL user account. |
| Password | Specifies the password of the authenticating user account. |
The type of authentication to use when connecting to remote services.
string
"Basic"
The following options are generally available to all connections:
The URL of the GraphQL service.
string
""
The URL of the GraphQL service.
Specifies the user ID of the authenticating GraphQL user account.
string
""
The authenticating server requires both User and Password to validate the user's identity.
Specifies the password of the authenticating user account.
string
""
The authenticating server requires both User and Password to validate the user's identity.
This section provides a complete list of the AWS Authentication properties you can configure in the connection string for this provider.
| Property | Description |
| AWSCognitoRegion | The hosting region for AWS Cognito. |
| AWSUserPoolId | The User Pool Id. |
| AWSUserPoolClientAppId | The User Pool Client App Id. |
| AWSUserPoolClientAppSecret | Optional. The User Pool Client App Secret. |
The hosting region for AWS Cognito.
string
"NORTHERNVIRGINIA"
The hosting region for AWS Cognito. Available values are OHIO, NORTHERNVIRGINIA, NORTHERNCALIFORNIA, OREGON, CAPETOWN, HONGKONG, HYDERABAD, JAKARTA, MALAYSIA, MELBOURNE, MUMBAI, OSAKA, SEOUL, SINGAPORE, SYDNEY, TOKYO, CENTRAL, CALGARY, BEIJING, NINGXIA, FRANKFURT, IRELAND, LONDON, MILAN, PARIS, SPAIN, STOCKHOLM, ZURICH, TELAVIV, BAHRAIN, UAE, SAOPAULO, GOVCLOUDEAST, GOVCLOUDWEST, ISOLATEDUSEAST, ISOLATEDUSEASTB, ISOLATEDUSWEST, and ISOLATEDEUWEST.
The User Pool Id.
string
""
You can find this in AWS Cognito -> Manage User Pools -> select your user pool -> General settings -> Pool Id.
The User Pool Client App Id.
string
""
You can find this in AWS Cognito -> Manage Identity Pools -> select your user pool -> General settings -> App clients -> App client Id.
Optional. The User Pool Client App Secret.
string
""
You can find this in AWS Cognito -> Manage Identity Pools -> select your user pool -> General settings -> App clients -> App client secret.
This section provides a complete list of the OAuth properties you can configure in the connection string for this provider.
| Property | Description |
| OAuthClientId | Specifies the client Id that was assigned the custom OAuth application was created. (Also known as the consumer key.) This ID registers the custom application with the OAuth authorization server. |
| OAuthClientSecret | Specifies the client secret that was assigned when the custom OAuth application was created. (Also known as the consumer secret ). This secret registers the custom application with the OAuth authorization server. |
| OAuthGrantType | Specifies the grant type for the chosen OAuth flow. This value should be the same as the grant_type that was set during OAuth custom application creation. |
| OAuthAuthorizationURL | The authorization URL for the OAuth service. |
| OAuthAccessTokenURL | The URL to retrieve the OAuth access token from. |
| AuthToken | The authentication token used to request and obtain the OAuth Access Token. |
| AuthKey | The authentication secret used to request and obtain the OAuth Access Token. |
Specifies the client Id that was assigned the custom OAuth application was created. (Also known as the consumer key.) This ID registers the custom application with the OAuth authorization server.
string
""
OAuthClientId is one of a handful of connection parameters that need to be set before users can authenticate via OAuth. For details, see Establishing a Connection.
Specifies the client secret that was assigned when the custom OAuth application was created. (Also known as the consumer secret ). This secret registers the custom application with the OAuth authorization server.
string
""
OAuthClientSecret is one of a handful of connection parameters that need to be set before users can authenticate via OAuth. For details, see Establishing a Connection.
Specifies the grant type for the chosen OAuth flow. This value should be the same as the grant_type that was set during OAuth custom application creation.
string
"CODE"
In most cases, the default grant type should not be modified. For information about the most common OAuth grant types and the trade-offs between them, see https://oauth.net/2/grant-types/.
The authorization URL for the OAuth service.
string
""
The authorization URL for the OAuth service. At this URL, the user logs into the server and grants permissions to the application. In OAuth 1.0, if permissions are granted, the request token is authorized.
The URL to retrieve the OAuth access token from.
string
""
The URL to retrieve the OAuth access token from. In OAuth 1.0, the authorized request token is exchanged for the access token at this URL.
The authentication token used to request and obtain the OAuth Access Token.
string
""
This property is required only when performing headless authentication in OAuth 1.0. It can be obtained from the GetOAuthAuthorizationUrl stored procedure.
It can be supplied alongside the AuthKey in the GetOAuthAccessToken stored procedure to obtain the OAuthAccessToken.
The authentication secret used to request and obtain the OAuth Access Token.
string
""
This property is required only when performing headless authentication in OAuth 1.0. It can be obtained from the GetOAuthAuthorizationUrl stored procedure.
It can be supplied alongside the AuthToken in the GetOAuthAccessToken stored procedure to obtain the OAuthAccessToken.
This section provides a complete list of the SSL properties you can configure in the connection string for this provider.
| Property | Description |
| SSLServerCert | Specifies the certificate to be accepted from the server when connecting using TLS/SSL. |
Specifies the certificate to be accepted from the server when connecting using TLS/SSL.
string
""
If using a TLS/SSL connection, this property can be used to specify the TLS/SSL certificate to be accepted from the server. Any other certificate that is not trusted by the machine is rejected.
This property can take the following forms:
| Description | Example |
| A full PEM Certificate (example shortened for brevity) | -----BEGIN CERTIFICATE----- MIIChTCCAe4CAQAwDQYJKoZIhv......Qw== -----END CERTIFICATE----- |
| A path to a local file containing the certificate | C:\cert.cer |
| The public key (example shortened for brevity) | -----BEGIN RSA PUBLIC KEY----- MIGfMA0GCSq......AQAB -----END RSA PUBLIC KEY----- |
| The MD5 Thumbprint (hex values can also be either space or colon separated) | ecadbdda5a1529c58a1e9e09828d70e4 |
| The SHA1 Thumbprint (hex values can also be either space or colon separated) | 34a929226ae0819f2ec14b4a3d904f801cbb150d |
If not specified, any certificate trusted by the machine is accepted.
Use '*' to signify to accept all certificates. Note that this is not recommended due to security concerns.
This section provides a complete list of the Logging properties you can configure in the connection string for this provider.
| Property | Description |
| Verbosity | Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5. |
Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5.
string
"1"
This property defines the level of detail the Cloud includes in the log file. Higher verbosity levels increase the detail of the logged information, but may also result in larger log files and slower performance due to the additional data being captured.
The default verbosity level is 1, which is recommended for regular operation. Higher verbosity levels are primarily intended for debugging purposes. For more information on each level, refer to Logging.
When combined with the LogModules property, Verbosity can refine logging to specific categories of information.
This section provides a complete list of the Schema properties you can configure in the connection string for this provider.
| Property | Description |
| BrowsableSchemas | Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC . |
| ExpandArgumentsDepth | This property is used to determine how far the provider should search for columns inside the arguments of type INPUT_OBJECT. |
| ExpandTablesDepth | This property is used to determine the depth of the child tables. |
| ExpandTemporaryTablesDepth | This property is used to determine the depth of the child temporary tables. Only works if ExposeDynamicProcedures is set to true. |
| ExpandColumnsDepth | This property is used to determine how far the provider should search for columns inside the GraphQL objects. |
| IncludeDeprecatedMetadata | This property is used to determine whether the provider should expose deprecated tables and columns or not. |
| ExposeDynamicProcedures | This property is used to determine whether the provider should expose mutations as dynamic procedures or not. |
| ExposeObjectTables | This property is used to determine the extent to which the provider exposes GraphQL object type fields as tables. |
Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .
string
""
Listing all available database schemas can take extra time, thus degrading performance. Providing a list of schemas in the connection string saves time and improves performance.
This property is used to determine how far the provider should search for columns inside the arguments of type INPUT_OBJECT.
int
2
This property is used to determine how far the Cloud should search for columns inside the arguments of type INPUT_OBJECT. For example:
{
"variables": {
"input": {
"filters": {
"type": "SUPPLIER"
}
}
},
"query": "query($input:FilteredCompaniesInput!) {\r\nfilteredCompanies(input:$input) {\r\nid:id\r\nvalue:value\r\n}\r\n}\r\n"
}
for the SQL query:
SELECT id,value FROM filteredCompanies WHERE type='SUPPLIER'In this case the nested "FilteredCompaniesInput" is itself of type INPUT_OBJECT. In a column search, the ExpandColumnsDepth property controls how many nested levels of type INPUT_OBJECT are subjected to searching.
This property is used to determine the depth of the child tables.
int
2
This property is used to determine the depth of the child tables.
This property is used to determine the depth of the child temporary tables. Only works if ExposeDynamicProcedures is set to true.
int
5
This property is used to determine the depth of the child temporary tables. Only works if ExposeDynamicProcedures is set to true.
This property is used to determine how far the provider should search for columns inside the GraphQL objects.
int
2
This property is used to determine how far the Cloud should search for columns inside the GraphQL objects.
This property is used to determine whether the provider should expose deprecated tables and columns or not.
bool
false
This property is used to determine whether the Cloud should expose deprecated tables and columns or not.
This property is used to determine whether the provider should expose mutations as dynamic procedures or not.
bool
true
This property is used to determine whether the Cloud should expose mutations as dynamic procedures or not.
This property is used to determine the extent to which the provider exposes GraphQL object type fields as tables.
string
"SHALLOW"
This property is used to determine the extent to which the Cloud exposes GraphQL object type fields as tables. It applies only to fields that meet the following conditions:
This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.
| Property | Description |
| CustomHeaders | Specifies additional HTTP headers to append to the request headers created from other properties, such as ContentType and From. Use this property to customize requests for specialized or nonstandard APIs. |
| MaxRows | Specifies the maximum rows returned for queries without aggregation or GROUP BY. |
| Pagesize | The maximum number of results to return per page from GraphQL. |
| PseudoColumns | Specifies the pseudocolumns to expose as table columns. Use the format 'TableName=ColumnName;TableName=ColumnName'. The default is an empty string, which disables this property. |
| Timeout | Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. The default is 60 seconds. Set to 0 to disable the timeout. |
Specifies additional HTTP headers to append to the request headers created from other properties, such as ContentType and From. Use this property to customize requests for specialized or nonstandard APIs.
string
""
Use this property to add custom headers to HTTP requests sent by the Cloud.
This property is useful when fine-tuning requests to interact with APIs that require additional or nonstandard headers. Headers must follow the format "header: value" as described in the HTTP specifications and each header line must be separated by the carriage return and line feed (CRLF) characters. Important: Use caution when setting this property. Supplying invalid headers may cause HTTP requests to fail.
Specifies the maximum rows returned for queries without aggregation or GROUP BY.
int
-1
This property sets an upper limit on the number of rows the Cloud returns for queries that do not include aggregation or GROUP BY clauses. This limit ensures that queries do not return excessively large result sets by default.
When a query includes a LIMIT clause, the value specified in the query takes precedence over the MaxRows setting. If MaxRows is set to "-1", no row limit is enforced unless a LIMIT clause is explicitly included in the query.
This property is useful for optimizing performance and preventing excessive resource consumption when executing queries that could otherwise return very large datasets.
The maximum number of results to return per page from GraphQL.
string
""
The Pagesize property affects the maximum number of results to return per page from GraphQL. Setting a higher value may result in better performance at the cost of additional memory eaten up per page consumed. The pageSize is proportional to the GraphQL query cost.
Specifies the pseudocolumns to expose as table columns. Use the format 'TableName=ColumnName;TableName=ColumnName'. The default is an empty string, which disables this property.
string
""
This property allows you to define which pseudocolumns the Cloud exposes as table columns.
To specify individual pseudocolumns, use the following format: "Table1=Column1;Table1=Column2;Table2=Column3"
To include all pseudocolumns for all tables use: "*=*"
Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. The default is 60 seconds. Set to 0 to disable the timeout.
int
60
This property controls the maximum time, in seconds, that the Cloud waits for an operation to complete before canceling it. If the timeout period expires before the operation finishes, the Cloud cancels the operation and throws an exception.
The timeout applies to each individual communication with the server rather than the entire query or operation. For example, a query could continue running beyond 60 seconds if each paging call completes within the timeout limit.
Setting this property to 0 disables the timeout, allowing operations to run indefinitely until they succeed or fail due to other conditions such as server-side timeouts, network interruptions, or resource limits on the server. Use this property cautiously to avoid long-running operations that could degrade performance or result in unresponsive behavior.