Concepts
Performing operations with the Dataverse Web API is a crucial aspect of developing solutions as a Microsoft Power Platform Developer. The Web API allows you to interact with data stored in Dataverse, enabling you to create, read, update, and delete records. In this article, we will explore the essential operations you can perform using the Dataverse Web API.
1. Authenticate with the Web API:
Before performing any operations, you need to authenticate with the Web API. The recommended approach is to use Azure AD authentication. You can register an application in Azure AD, obtain the client ID and client secret, and utilize the OAuth 2.0 authorization code grant flow to authenticate and acquire an access token for subsequent requests.
2. Retrieve Records:
To retrieve records from Dataverse, you can use the GET
request with the appropriate endpoint. For example, to retrieve a specific record, you need to specify the entity logical name and the record’s unique identifier in the request URL. You can also retrieve multiple records based on query criteria by using the Web API’s query options.
3. Create Records:
Creating records in Dataverse involves sending a POST
request to the relevant entity’s endpoint. You should include the record data in the request body, following the entity’s schema. This allows you to populate all mandatory fields and provide values for optional fields. After the record is created successfully, the Web API responds with the newly created record’s unique identifier.
4. Update Records:
To update existing records, you can utilize the PATCH
request. You need to specify the entity logical name and the record’s unique identifier in the request URL. The request body should contain the fields you want to update along with their new values. It is important to note that you must include at least one field to be updated in the request body; otherwise, the Web API will respond with an error.
5. Delete Records:
Deleting records is performed using the DELETE
request. Similar to updating records, you need to specify the entity logical name and the record’s unique identifier in the request URL. Upon successful deletion, the Web API responds with a 204 No Content status code.
6. Perform Upserts:
Upserts allow you to create or update records based on certain criteria. By using the MERGE
request, you can send a single request to create a record if it doesn’t exist or update it if it does. This is determined by specifying a unique identifier or a combination of fields that act as a unique identifier in the request URL. The request body should contain the fields and their values to be created or updated.
7. Execute Actions and Functions:
Actions and functions in Dataverse allow you to execute custom business logic. You can use the POST
request to execute an action or a function. The request URL should include the logical name of the action or function along with any required parameters. Additionally, you can pass values using the request body or URL query parameters, depending on the requirements of the action or function.
These are some of the primary operations you can perform using the Dataverse Web API. By leveraging these operations, you can build powerful solutions that interact with and manipulate data stored in Dataverse. Make sure to refer to the Microsoft documentation for detailed information on the Web API endpoints, request payloads, and response structures to utilize the full potential of the Dataverse Web API in your Power Platform Developer exams.
Answer the Questions in Comment Section
1. Which HTTP verb is used to create a record in the Dataverse Web API?
- a) GET
- b) POST
- c) PUT
- d) DELETE
Correct answer: b) POST
2. What is the default maximum number of records returned by the Dataverse Web API in a single request?
- a) 100
- b) 500
- c) 1000
- d) 2000
Correct answer: c) 1000
3. Which HTTP header is used to specify the entity set when retrieving records from the Dataverse Web API?
- a) OData-MaxVersion
- b) OData-Version
- c) Prefer
- d) DataServiceVersion
Correct answer: d) DataServiceVersion
4. Which parameter is used to specify the columns to include in the response when retrieving records from the Dataverse Web API?
- a) $orderby
- b) $filter
- c) $select
- d) $expand
Correct answer: c) $select
5. Which query option allows you to order the results when retrieving records from the Dataverse Web API?
- a) $orderby
- b) $filter
- c) $select
- d) $expand
Correct answer: a) $orderby
6. What is the correct syntax to update a record in the Dataverse Web API using a PATCH request?
- a) PATCH /api/data/v9.1/accounts(123456)
- b) PATCH /api/data/v9.1/accounts/update(123456)
- c) PATCH /api/data/v9.1/accounts/123456
- d) PATCH /api/data/v9.1/accounts/update?id=123456
Correct answer: a) PATCH /api/data/v9.1/accounts(123456)
7. Which HTTP status code indicates a successful deletion of a record in the Dataverse Web API?
- a) 200
- b) 204
- c) 404
- d) 500
Correct answer: b) 204
8. Which parameter is used to specify the number of records to skip when retrieving records from the Dataverse Web API?
- a) $skip
- b) $filter
- c) $select
- d) $expand
Correct answer: a) $skip
9. Which HTTP header is used to specify the format of the request when using the Dataverse Web API?
- a) Accept
- b) Content-Type
- c) Authorization
- d) If-Match
Correct answer: b) Content-Type
10. How can you retrieve the metadata for an entity using the Dataverse Web API?
- a) Send a GET request to /api/data/v9.1/metadata/entities
- b) Send a GET request to /api/data/v9.1/entities/metadata
- c) Send a GET request to /api/data/v9.1/$metadata
- d) Send a GET request to /api/data/v9.1/metadata/$entities
Correct answer: c) Send a GET request to /api/data/v9.1/$metadata
Great blog post! Helped me understand how to perform CRUD operations with the Dataverse Web API.
Can someone explain the use of $expand in Dataverse Web API queries?
Thanks, this article is a lifesaver!
I’m facing issues while trying to authenticate using OAuth. Any suggestions?
When performing a batch operation, what’s the best way to handle transaction rollbacks?
Is it possible to use the Web API for complex entity relationships?
What are the performance implications of using $filter in queries?
Awesome post!