Module Web.Api

Description

The Web.Api has modules and classes for communicating with various (RESTful) web api's such as Web.Api.Facebook, Web.Api.Instagram, Web.Api.Twitter etc.

Example

string api_key = "......";
string api_secret = ".......";
string redirect_uri = "http://localhost/insta/";

Web.Api.Instagram api;

string cookie_file = "my-cookie.txt";

int main(int argc, array(string) argv)
{
  api = Web.Api.Instagram(api_key, api_secret, redirect_uri);

  // If a stored authentication cookie exists, populate the auth object.
  if (Stdio.exist(cookie_file)) {
    api->auth->set_from_cookie(Stdio.read_file(cookie_file));
  }

  if (!api->auth->is_authenticated()) {
    // A cookie existed but the authentication has expired
    if (api->auth->is_renewable()) {
      write("Trying to refresh token...");
      if (string data = api->auth->refresh_token())
        Stdio.write_file(cookie_file, data);
        write("done ok!\n");
      }
      else {
        werror("failed!\n");
      }
    }
    // No previous authentication exists. Create a new one...
    else {
      // Get the uri to the authentication endpoint
      string uri = api->auth->get_auth_uri();

      write("Opening \"%s\" in browser.\nCopy the contents of the address "
            "bar and paste here: ", Standards.URI(uri));

      sleep(2);

      // For Mac
      Process.create_process(({ "open", uri }));

      string resp = Stdio.Readline()->read();
      mapping p = Web.Auth.query_to_mapping(Standards.URI(resp)->query);

      string code;

      // If the auth object is OAuth and not OAuth2 this step is required.
      // Instagram is OAuth2, but Twitter is OAuth1
      if (p->oauth_token) {
        auth->set_authentication(p->oauth_token);
        code = p->oauth_verifier;
      }
      else {
        code = p->code;
      }

      // Now, get an access token
      if (string data = auth->request_access_token(code)) {
        Stdio.write_file(cookie, data);
      }
      else {
        werror("Failed getting an access token. Aborting!\n");
        return 1;
      }
    }
  }

  if (api->auth->is_authenticated()) {
    // No UID (arg1) means get the authenticated users stuff
    // No additional params (arg2)
    // Run async (arg3)
    mapping m = api->users->recent(0, 0, lambda(mixed m) {
      werror("Insta: %O\n", m);
      exit(0);
    });

    return -1;
  }
  else {
    werror("No authentication was aquired!\n");
    return 1;
  }
}

Constant USER_AGENT

constant string Web.Api.USER_AGENT

Description

Default user agent in HTTP calls