Bearer Authorization does not work

c_miesenberger

I am currently working on an API with GraphQL that uses Bearer tokens for authentication. It's strange because it always works in Postman, but when I try it in Business Central, it doesn't.

It seems like the API doesn't recognize that I want to use Bearer tokens for authentication because I always get some HTML code as a response.

Here is my code:

ftornero

Hello @c_miesenberger,

I never use the DefaultRequestHeaders, you can try something like this that works for me

        RequestHeader.Clear();
        HttpRequestMessage.GetHeaders(RequestHeader);
        RequestHeader.Add('Authorization', 'Bearer '  + LunarAPI.GetAccessToken());
...............

Where RequestHeader is

RequestHeader: HttpHeaders;

Regards.

c_miesenberger

Unfortunately, that didn't work either; the same error keeps occurring. However, while debugging, I noticed that the RequestUri of the RequestMessage changes after HttpClient.Send(). Maybe it has something to do with that?

SanderDk

This piece of code works with Bearer tokens, perhaps you can make use of something like this:

internal procedure CallAPI(): text
    var
        OccuredErr: Label 'An error occured: %1';
        Client: HttpClient;
        header: HttpHeaders;
        Response: HttpResponseMessage;
        Request: HttpRequestMessage;
        respTxt: text;
    begin
        Request.GetHeaders(header);
        header.Add('Authorization', 'Bearer ' + GetAccessToken());
        Request.Method('GET');
        request.SetRequestUri(BuildURL());
        Client.Send(Request, Response);
        if Response.IsSuccessStatusCode then begin
            Response.Content.ReadAs(respTxt);
            //Handle Reponse here
        end
        else
            Error(OccuredErr, GetLastErrorText())
    end;