Flutter - ERROR : HTTP 405 Method not allowed

Question

I'm trying to read json file through an API that was given to me by a client, but It's giving HTTP error 405 saying method not allowed. Can anyone please tell what I'm doing wrong?

This api request snippet was given to me :

curl 'http://finelistings.com/backend/apis/webbrands/' -H 'Content-Type: application/json' -H 'Accept: application/json' --data-binary '{}' --compressed --insecure

Future<String> getData() async {
    var response = await http.get(
      Uri.encodeFull("http://finelistings.com/backend/apis/webbrands/"),
      headers: {
        "Accept": "application/json",
      }
    );

    Map<String, String> data = jsonDecode(response.body);

    print(data);
  }

Solution

Method not allowed might refer to wrong request method.

Try using POST instead of GET, at least I got a response from that using the mentioned URL.

Future<String> getData() async {
    var response = await http.post(
      Uri.encodeFull("http://finelistings.com/backend/apis/webbrands/"),
      headers: {
        "Accept": "application/json",
      }
    );

    Map<String, dynamic> data = jsonDecode(response.body);

    print(data);
  }

Comments

[Praneeth Dhanushka Fernando]

is the Curl call working correctly?

[Richard Heap]

There's a great resource that converts curl commands to dart. As @Torkel noticed, you need to submit as a POST. You missed the part of the curl command that says --data-binary... which sends a body to the server with the request, which has to be done with a POST.

[hasib_ullah]

I tried this method but now I'm getting a new error on the line Map<String, String> data = jsonDecode(response.body);. Error: Exception has occurred. _TypeError (type '_InternalLinkedHashMap<String, dynamic>' is not a subtype of type 'Map<String, String>')

[Torkel Velure]

Try using dynamic instead of string? It's what the error message says