Setting HeaderFields for Bearer Token to make API requests

I need to set the Bearer Token field to 'Authorization : "Bearer <token>"' to pull data from an API however I have not been able to set this value. I have tried using the weboptions() function, but the HeadersFields field will not accept strings -- it appears to only accept numeric-type.

r= weboptions;
r.HeaderFields =  'Authorization : "Bearer <token>"';

This gives an error (r2019a). What's wrong with this statment?

Answer 1

[Mahsa Eshtehardi]

You should add brackets:

'HeaderFields',{'Authorization', ['Bearer ' token]});

Answer 2

[Sam Oliver]

You can make a request using Bearer token base authentication using the following code.

function [resp, a, req] = webread2(URL,Message,BearerToken)

    MyBody = matlab.net.http.MessageBody(Message);
    MyHTTPOptions = matlab.net.http.HTTPOptions();
    Request = matlab.net.http.RequestMessage;
    Request.Method = 'POST';
    Request.Header = matlab.net.http.HeaderField('Content-Type','application/json','Authorization', ['Bearer ' BearerToken]);
    Request.Body = MyBody;
    uri = matlab.net.URI(URL);
    [resp, a, req] = Request.send(uri,MyHTTPOptions);

end