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flutterdartdart-http

Is it possible to make a GET request with a body in Flutter?

I made an API that reads data from a database based on a given id via a GET request.

It gets some data where id equals some integer.

I want to call this API in Flutter using package:http/http.dart but the GET request doesn't allow me to enter a request body (where I would pass in the id).

I've Googled and Googled to no avail (I may just be googling the wrong thing). I tried changing my API to a POST rather than GET, which works, but I feel it defeats the purpose of GET.

Here is how I do it using POST:

String url = "http://example.com/api/v1";
Map<String, String> headers = {"Content-type": "application/json"};

String json = '{"id": 1}';

Response response = await post(url, headers: headers, body: json);

But can I achieve this with GET in Flutter?

Solution

  • You can use the Request class for this:

    final request = Request('GET', 'http://example.com/api/v1');

request.body = '{"id": 1}';

final response = request.send().stream.first;

    Alternatively, you can also use idiomatic syntax, i.e. standard procedure, and provide your parameter in the URI:

    await get('http://example.com/api/v1?id=1', headers: headers, body: json);