POST
The POST method lets you create a new WallMessage on the timeline.
A successful create returns response code 200 and the newly created comment in JSON format (see Item API).

POST  projecten.viadesk.com/api/message.json
form field “office” // the id of the office where the message will be created (required)
form field “name” // the message title (optional)
form field “text” // the message body (optional)
 form field “url” // link to a website (optional)

• You can add one or more files by posting multipart/form-data. They will all be added to the new WallMessage.
• Either text, URL or one or more files are required.