Adds a photo to a user's favorites list.
This method requires authentication with 'write' permission.
Note: This method requires an HTTP POST request.
- Your API application key. See here for more details.
- The id of the photo to add to the user's favorites.
This method has no specific response - It returns an empty success response if it completes without error.
1: Photo not found
- The photo id passed was not a valid photo id.
2: Photo is owned by you
- The photo belongs to the user and so cannot be added to their favorites.
3: Photo is already in favorites
- The photo is already in the user's list of favorites.
4: User cannot see photo
- The user does not have permission to add the photo to their favorites.
95: SSL is required
- SSL is required to access the Flickr API.
96: Invalid signature
- The passed signature was invalid.
97: Missing signature
- The call required signing but no signature was sent.
98: Login failed / Invalid auth token
- The login details or auth token passed were invalid.
99: User not logged in / Insufficient permissions
- The method requires user authentication but the user was not logged in, or the authenticated method call did not have the required permissions.
100: Invalid API Key
- The API key passed was not valid or has expired.
105: Service currently unavailable
- The requested service is temporarily unavailable.
106: Write operation failed
- The requested operation failed due to a temporary issue.
111: Format "xxx" not found
- The requested response format was not found.
112: Method "xxx" not found
- The requested method was not found.
114: Invalid SOAP envelope
- The SOAP envelope send in the request could not be parsed.
115: Invalid XML-RPC Method Call
- The XML-RPC request document could not be parsed.
116: Bad URL found
- One or more arguments contained a URL that has been used for abuse on Flickr.