Webtask for oauth2-refresh-token.

oauth2-refresh-token.js

module.exports = function(context, request, response) {
  if (request.method !== 'POST') {
    response.writeHead(400, { 'Content-Type': 'text/html' });
    return response.end('Must be POST request');
  }
  
  if (context.body && context.body.grant_type !== 'refresh_token') {
    response.writeHead(400, { 'Content-Type': 'text/html' });
    return response.end('grant_type must be "refresh_token"');
  }
  
  if (context.body && context.body.client_id !== '1234') {
    response.writeHead(400, { 'Content-Type': 'text/html' });
    return response.end('Invalid client_id parameter');
  }
  
  if (context.body && context.body.client_secret !== 'asdf') {
    response.writeHead(400, { 'Content-Type': 'text/html' });
    return response.end('Invalid client_secret parameter');
  }
  
  if (context.body && context.body.refresh_token !== 'a_refresh_token') {
    response.writeHead(400, { 'Content-Type': 'text/html' });
    return response.end('Invalid refresh_token parameter');
  }
  
  response.writeHead(200, { 'Content-Type': 'application/json; charset=utf-8' });
  return response.end('{"access_token": "a_new_token"}');
};