Dataflow to get data from REST API

Hi webportal ,

One possible cause is that the API requires a specific content type header to return the JSON data. You can check the documentation of the API or use Postman to see what content type header is expected by the API. For example, some APIs may require Content-Type: application/json or Content-Type: text/plain. You can then add this header to your Web.Contents function, like this:

Json.Document(Web.Contents(“https://dominio.com/api/index.php/v1/GetData”, [Headers=[Authorization=“Bearer xxxx”, Accept=“/”, Content-Type=“application/json”]]))

Another possible cause is that the API returns a nested JSON object that Power BI cannot automatically flatten into a table. You can check the structure of the JSON data by using Postman or by loading the data as a list in Power BI. For example, if the JSON data looks like this:

{ “data”: [ { “id”: 1, “name”: “Alice” }, { “id”: 2, “name”: “Bob” } ] }

You can then use the Record.Field function to access the data field, like this:

Json.Document(Web.Contents(“https://dominio.com/api/index.php/v1/GetData”, [Headers=[Authorization=“Bearer xxxx”, Accept=“/”]]))[data]

This will return a list of records that you can then convert into a table.

A third possible cause is that the API has some limitations or restrictions on the number of requests, the size of the response, or the time interval between requests. You can check the documentation of the API or use Postman to see if there are any errors or warnings returned by the API. For example, some APIs may have a rate limit that prevents you from making too many requests in a short period of time. You can then adjust your query parameters or use a pagination function to avoid exceeding the limit.

Best Regards,
Community Support Team _ kalyj

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