title: invalid credentials google plus api
body: <p>I am trying to create post on Google Plus using API. I am using http protocol for create post as below.</p>
  
  <pre><code>URL : https://www.googleapis.com/plusDomains/v1/people/me/activities
  Method : POST
  
  header parameter :
  Content-Type :application/json
  Authorization : "browser key"
  </code></pre>
  
  <p>I am using below <code>json</code> as  Request Body:</p>
  
  <pre><code>{
    "object": {
      "originalContent": "Happy Monday! #caseofthemondays",
    },
    "access": {
      "items": [{
          "type": "domain"
      }],
      "domainRestricted": true
    }
  }
  </code></pre>
  
  <p>Now 1 got response:</p>
  
  <pre><code>Status : 401 Unauthorized
  
  { 
    "error": { 
       "errors": [ 
          { 
            "domain": "global", "reason": "authError", 
            "message": "Invalid Credentials", "locationType": "header",   
            "location": "Authorization" 
          } 
        ],
        "code": 401, "message": "Invalid Credentials" 
     }
  }
  </code></pre>
  
  <p>I am using correct key and also enable Google Plus API and Google domain api enable. Can anyone help me how can I create post using Google Plus API. I am trying create new post on Google Plus using HTTP protocol.</p>