flickrex

{
  "stat": "ok",
  "method": {
    "response": {
      "_content": "<groups page=\"1\" pages=\"1\" per_page=\"400\" total=\"3\">\n\t<group nsid=\"33853651696@N01\" name=\"Art and Literature Hoedown\"\n\t\tadmin=\"0\" privacy=\"3\" photos=\"2\" iconserver=\"1\" /> \n\t<group nsid=\"34427465446@N01\" name=\"FlickrIdeas\"\n\t\tadmin=\"1\" privacy=\"3\" photos=\"20\" iconserver=\"1\" /> \n\t<group nsid=\"34427465497@N01\" name=\"GNEverybody\"\n\t\tadmin=\"0\" privacy=\"3\" photos=\"4\" iconserver=\"1\" /> \n</groups>"
    },
    "requiredperms": "1",
    "needssigning": 1,
    "needslogin": 1,
    "name": "flickr.groups.pools.getGroups",
    "explanation": {
      "_content": "<p>The <code>privacy</code> attribute is 1 for private groups, 2 for invite-only public groups and 3 for open public groups.</p>"
    },
    "description": {
      "_content": "Returns a list of groups to which you can add photos."
    }
  },
  "errors": {
    "error": [
      {
        "message": "SSL is required",
        "code": 95,
        "_content": "SSL is required to access the Flickr API."
      },
      {
        "message": "Invalid signature",
        "code": 96,
        "_content": "The passed signature was invalid."
      },
      {
        "message": "Missing signature",
        "code": 97,
        "_content": "The call required signing but no signature was sent."
      },
      {
        "message": "Login failed / Invalid auth token",
        "code": 98,
        "_content": "The login details or auth token passed were invalid."
      },
      {
        "message": "User not logged in / Insufficient permissions",
        "code": 99,
        "_content": "The method requires user authentication but the user was not logged in, or the authenticated method call did not have the required permissions."
      },
      {
        "message": "Invalid API Key",
        "code": 100,
        "_content": "The API key passed was not valid or has expired."
      },
      {
        "message": "Service currently unavailable",
        "code": 105,
        "_content": "The requested service is temporarily unavailable."
      },
      {
        "message": "Write operation failed",
        "code": 106,
        "_content": "The requested operation failed due to a temporary issue."
      },
      {
        "message": "Format \"xxx\" not found",
        "code": 111,
        "_content": "The requested response format was not found."
      },
      {
        "message": "Method \"xxx\" not found",
        "code": 112,
        "_content": "The requested method was not found."
      },
      {
        "message": "Invalid SOAP envelope",
        "code": 114,
        "_content": "The SOAP envelope send in the request could not be parsed."
      },
      {
        "message": "Invalid XML-RPC Method Call",
        "code": 115,
        "_content": "The XML-RPC request document could not be parsed."
      },
      {
        "message": "Bad URL found",
        "code": 116,
        "_content": "One or more arguments contained a URL that has been used for abuse on Flickr."
      }
    ]
  },
  "arguments": {
    "argument": [
      {
        "optional": 0,
        "name": "api_key",
        "_content": "Your API application key. <a href=\"/services/api/misc.api_keys.html\">See here</a> for more details."
      },
      {
        "optional": "1",
        "name": "page",
        "_content": "The page of results to return. If this argument is omitted, it defaults to 1."
      },
      {
        "optional": "1",
        "name": "per_page",
        "_content": "Number of groups to return per page. If this argument is omitted, it defaults to 400. The maximum allowed value is 400."
      }
    ]
  }
}