CustomAPI tables

The data that defines custom APIs is in the following tables/entities:

• CustomAPI Reference
• CustomAPIRequestParameter Reference
• CustomAPIResponseProperty Reference

The sections in this article provide detailed information about the column values you use most.

• custom API table columns
• CustomAPIRequestParameter Table Columns
• CustomAPIResponseProperty Table Columns

This diagram shows how the tables are related to these tables and others:

The relationship to the CatalogAssignment table enables using custom API with Microsoft Dataverse business events. More information: Catalog and CatalogAssignment tables.

Retrieve data about custom APIs

You can use the following queries to retrieve data about custom APIs.

Web API

More information: Query Data using the Web API

GET [Organization URI]/api/data/v9.1/customapis?$select=
    uniquename,
    allowedcustomprocessingsteptype,
    bindingtype,
    boundentitylogicalname,
    description,
    displayname,
    executeprivilegename,
    iscustomizable,
    isfunction,
    isprivate,
    workflowsdkstepenabled
  &$expand=
  CustomAPIRequestParameters($select=
    uniquename,
    name,
    description,
    displayname,
    type,
    logicalentityname,
    iscustomizable,
    isoptional),
  CustomAPIResponseProperties($select=
    uniquename,
    name,
    description,
    displayname,
    iscustomizable,
    type,
    logicalentityname),
  PluginTypeId($select=
    plugintypeid,
    typename,
    version,
    name,
    assemblyname)

QueryExpression

More information: Build queries with QueryExpression

string conn = $@"
    Url = {url};
    AuthType = OAuth;
    UserName = {userName};
    Password = {password};
    AppId = 51f81489-12ee-4a9e-aaae-a2591f45987d;
    RedirectUri = app://58145B91-0C36-4500-8554-080854F2AC97;
    LoginPrompt=Auto;
    RequireNewInstance = True";

// using (var svc = new ServiceClient(conn))
using (var svc = new CrmServiceClient(conn))
{

    // Instantiate QueryExpression query
    var query = new QueryExpression("customapi");

    // Add columns to query.ColumnSet
    query.ColumnSet.AddColumns("isprivate",
    "description",
    "displayname",
    "executeprivilegename",
    "iscustomizable",
    "isfunction",
    "allowedcustomprocessingsteptype",
    "boundentitylogicalname",
    "bindingtype",
    "uniquename",
    "workflowsdkstepenabled");

    // Add link-entity req
    var req = query.AddLink("customapirequestparameter",
    "customapiid",
    "customapiid",
    JoinOperator.LeftOuter);
    req.EntityAlias = "req";

    // Add columns to req.Columns
    req.Columns.AddColumns("description",
    "displayname",
    "iscustomizable",
    "logicalentityname",
    "name",
    "uniquename",
    "type",
    "isoptional");

    // Add link-entity query_customapiresponseproperty
    var query_customapiresponseproperty = query
        .AddLink("customapiresponseproperty",
    "customapiid",
    "customapiid",
    JoinOperator.LeftOuter);

    // Add columns to query_customapiresponseproperty.Columns
    query_customapiresponseproperty.Columns
        .AddColumns("description",
    "displayname",
    "iscustomizable",
    "logicalentityname",
    "name",
    "uniquename",
    "type");

    // Add link-entity plugintype
    var plugintype = query.AddLink("plugintype",
    "plugintypeid",
    "plugintypeid",
    JoinOperator.LeftOuter);

    plugintype.EntityAlias = "plugintype";

    // Add columns to plugintype.Columns
    plugintype.Columns.AddColumns("name",
    "assemblyname",
    "version",
    "plugintypeid",
    "typename");

    EntityCollection results = svc.RetrieveMultiple(query);

    Console.WriteLine("Press any key to exit.");
    Console.ReadLine();
}

FetchXML

More information: Query data using FetchXml

<fetch>
  <entity name='customapi' >
    <attribute name='isprivate' />
    <attribute name='description' />
    <attribute name='displayname' />
    <attribute name='executeprivilegename' />
    <attribute name='iscustomizable' />
    <attribute name='isfunction' />
    <attribute name='allowedcustomprocessingsteptype' />
    <attribute name='boundentitylogicalname' />
    <attribute name='bindingtype' />
    <attribute name='uniquename' />
    <attribute name='workflowsdkstepenabled' />
    <link-entity name='customapirequestparameter' from='customapiid' to='customapiid' link-type='outer' alias='req' >
      <attribute name='description' />
      <attribute name='displayname' />
      <attribute name='iscustomizable' />
      <attribute name='logicalentityname' />
      <attribute name='name' />
      <attribute name='uniquename' />
      <attribute name='type' />
      <attribute name='isoptional' />
    </link-entity>
    <link-entity name='customapiresponseproperty' from='customapiid' to='customapiid' link-type='outer' >
      <attribute name='description' />
      <attribute name='displayname' />
      <attribute name='iscustomizable' />
      <attribute name='logicalentityname' />
      <attribute name='name' />
      <attribute name='uniquename' />
      <attribute name='type' />
    </link-entity>
    <link-entity name='plugintype' from='plugintypeid' to='plugintypeid' link-type='outer' alias='plugintype' >
      <attribute name='name' />
      <attribute name='assemblyname' />
      <attribute name='version' />
      <attribute name='plugintypeid' />
      <attribute name='typename' />
    </link-entity>
  </entity>
</fetch>

SQL

More information: Use SQL to query data (Preview)

SELECT api.customapiid,
       api.uniquename,
       api.allowedcustomprocessingsteptype,
       api.bindingtype,
       api.boundentitylogicalname,
       api.description,
       api.displayname,
       api.executeprivilegename,
       api.iscustomizable,
       api.isfunction,
       api.isprivate,
       api.workflowsdkstepenabled,
       req.customapirequestparameterid,
       req.uniquename,
       req.name,
       req.description,
       req.displayname,
       req.type,
       req.logicalentityname,
       req.iscustomizable,
       req.isoptional,
       resp.customapiresponsepropertyid,
       resp.uniquename,
       resp.name,
       resp.description,
       resp.iscustomizable,
       resp.type,
       resp.logicalentityname,
       type.plugintypeid,
       type.typename,
       type.version,
       type.name,
       type.assemblyname
FROM   customapi AS api
       LEFT JOIN
       customapirequestparameter AS req
       ON api.customapiid = req.customapiid
       LEFT JOIN
       customapiresponseproperty AS resp
       ON api.customapiid = resp.customapiid
       LEFT JOIN
       plugintype AS type
       ON api.plugintypeid = type.plugintypeid

Custom API table columns

The following table includes selected columns of a custom API table that you can set.

Display Name Schema Name Logical Name	Type	Description
Allowed Custom Processing Step Type AllowedCustomProcessingStepType allowedcustomprocessingsteptype	Choice Picklist	Value: 0 Label: None Meaning: No custom processing steps allowed. Value: 1 Label: Async Only Meaning: Only asynchronous custom processing steps allowed Value: 2 Label: Sync and Async Meaning: No restriction. Third party plug-ins can add synchronous logic to change the behavior of the message. See Select a Custom Processing Step Type Cannot be changed after it is saved.
Binding Type BindingType bindingtype	Choice Picklist	Value: 0 Label: Global Value: 1 Label: Entity Value: 2 Label: EntityCollection See Select a Binding Type Cannot be changed after it is saved.
Bound Entity Logical Name BoundEntityLogicalName boundentitylogicalname	Text String	The logical name of the table bound to the custom API if it isn't Global. Cannot be changed after it is saved.
custom API CustomAPIId customapiid	Unique Identifier Guid	Unique Identifier for custom API instances Cannot be changed after it is saved.
Description Description description	Text String	Localized description for this custom API. Use this value when the message is visible in an app. For example, as a ToolTip.
Display Name DisplayName displayname	Text String	Localized display name for this custom API. Use this value when the message is visible in an app.
Execute Privilege Name ExecutePrivilegeName executeprivilegename	Text String	(Optional) Name of the privilege that allows execution of the custom API. See: Secure your custom API with a privilege
Is Customizable IsCustomizable iscustomizable	ManagedProperty	Whether the custom API can be customized or deleted when part of a managed solution.
Is Function IsFunction isfunction	Yes/No Boolean	Value: 0 Label: No Value: 1 Label: Yes See When to create a Function Cannot be changed after it is saved.
Is Private IsPrivate isprivate	Yes/No Boolean	Value: 0 Label: No Value: 1 Label: Yes See When to make your custom API private
Name Name name	Text String	The primary name of the custom API. This value displays in the list of custom APIs when viewed in the solution.
Owner OwnerId ownerid	Owner	A reference to the user or team that owns the API.
Plugin Type PluginTypeId plugintypeid	Lookup	A reference to the plug-in type that provides the main operation for this custom API. See: Use a plug-in to include logic in your custom API
Unique Name UniqueName uniquename	Text String	Unique name for the custom API. This value is the name of the message created. This value must include a customization prefix that matches the prefix set for your solution publisher. This value can't contain any special characters. Cannot be changed after it is saved.
Enabled for Workflow WorkflowSdkStepEnabled workflowsdkstepenabled	Yes/No Boolean	Indicates if the custom API is enabled as a workflow action. See: Use a custom API in a workflow Cannot be changed after it is saved.

CustomAPIRequestParameter Table Columns

A custom API isn't required to have any parameters. There's no specified order for the parameters. They're identified by name.

A parameter is related to a single custom API. You can't define multiple custom APIs to use the same parameter definition. You can define multiple request parameters with the same UniqueName value if they're used by different custom APIs.

Note

If you define a bound table for your custom API, the request parameter will be generated for you. You don't need to create an input parameter for the table when the custom API is bound to a table. More information: Select a Binding Type

The following table includes columns (attributes) of the custom API Request Parameter table that you can set.

Display Name Schema Name Logical Name	Type	Description
custom API Request Parameter CustomAPIRequestParameterId customapirequestparameterid	Unique Identifier Guid	Unique identifier for custom API request parameter instances. Cannot be changed after it is saved.
custom API CustomAPIId customapiid	Lookup	Unique identifier for the custom API that this custom API request parameter is associated with. Cannot be changed after it is saved.
Description Description description	Text String	Localized description for custom API request parameter instances. Use this value when the message parameter is visible in an app. For example, as a ToolTip.
Display Name DisplayName displayname	Text String	Localized display name for custom API request parameter instances. Use this value when the message parameter is visible in an app.
Is Customizable IsCustomizable iscustomizable	ManagedProperty	Whether the custom API request parameter can be customized or deleted when part of a managed solution. See custom API Customization
Is Optional IsOptional isoptional	Yes/No Boolean	Indicates if the custom API request parameter is optional. If it isn't optional, it's required to pass a value for this parameter when using the message. Value: 0 Label: No Value: 1 Label: Yes Cannot be changed after it is saved.
Logical Entity Name LogicalEntityName logicalentityname	Text String	The logical name of the table bound to the custom API request parameter. Cannot be changed after it is saved.
Name Name name	Text String	The primary name of the custom API request parameter. This value displays in the list of custom API request parameters when viewed in the solution. Use this value to differentiate this parameter from others that share a common Unique Name. This naming convention is recommended: {custom API Unique Name}.{Parameter UniqueName}
Owner OwnerId ownerid	Owner	A reference to the user or team that owns the API.
Type Type type	Choice Picklist	The data type of the custom API request parameter. Value: 0 Label: Boolean Value: 1 Label: DateTime Value: 2 Label: Decimal Value: 3 Label: Entity Value: 4 Label: EntityCollection Value: 5 Label: EntityReference Value: 6 Label: Float Value: 7 Label: Integer Value: 8 Label: Money Value: 9 Label: Picklist Value: 10 Label: String Value: 11 Label: StringArray Value: 12 Label: Guid Cannot be changed after it is saved.
Unique Name UniqueName uniquename	Text String	Unique name for the custom API request parameter. This value is the name of the parameter when you call the custom API. This value can't contain any special characters. Cannot be changed after it is saved.

CustomAPIResponseProperty Table Columns

The object returned for your custom API message includes any response properties you define. It isn't required for a custom API Action to return any value, but it must return a value if defined as a Function.

If there's only a single Entity or EntityCollection response property defined, the response is of that type. If there are multiple parameters, or one or more parameters of a simple type, the API returns a complex type where each response property is a property of that complex type.

For example, if your custom API Unique name is sample_CustomAPIExample, it returns a complex type named sample_CustomAPIExampleResponse with properties for each response property you define.

The following table includes columns (attributes) of the custom API Response Property table that you can set.

Display Name Schema Name Logical Name	Type	Description
custom API Response Property CustomAPIResponsePropertyId customapiresponsepropertyid	Unique Identifier Guid	Unique identifier for custom API response property instances. Cannot be changed after it is saved.
custom API CustomAPIId customapiid	Lookup	Unique identifier for the custom API that this custom API response property is associated with. Cannot be changed after it is saved.
Description Description description	Text String	Localized description for custom API response property instances. Use this value when the message parameter is visible in an app. For example, as a ToolTip.
Display Name DisplayName displayname	Text String	Localized display name for custom API response property instances. Use this value when the message parameter is visible in an app.
Is Customizable IsCustomizable iscustomizable	ManagedProperty	Whether the custom API response property can be customized or deleted when part of a managed solution.
Logical Entity Name LogicalEntityName logicalentityname	Text String	When Entity or EntityReference are selected as the Type, you can specify the logical name of the table bound to the custom API response property. You can't specify a Logical Entity Name when you choose EntityCollection as the Type. Cannot be changed after it is saved.
Name Name name	String	The primary name of the custom API response property. This value displays in the list of custom API request parameters when viewed in the solution. Use this value to differentiate this parameter from others that share a common Unique Name. This naming convention is recommended: {custom API Unique Name}.{Property UniqueName}
Owner OwnerId ownerid	Owner	A reference to the user or team that owns the API.
Type Type type	Picklist	The data type of the custom API response property Value: 0 Label: Boolean Value: 1 Label: DateTime Value: 2 Label: Decimal Value: 3 Label: Entity Value: 4 Label: EntityCollection Value: 5 Label: EntityReference Value: 6 Label: Float Value: 7 Label: Integer Value: 8 Label: Money Value: 9 Label: Picklist Value: 10 Label: String Value: 11 Label: StringArray Value: 12 Label: Guid Cannot be changed after it is saved.
Unique Name UniqueName uniquename	Text String	Unique name for the custom API response property. This value is the name of the parameter when you call the custom API. This value can't contain any special characters. Cannot be changed after it is saved.

See also

Create and use custom APIs
Create a custom API using the plug-in registration tool
Create a custom API in Power Apps
Create a custom API with code
Create a custom API with solution files
Create your own messages