POST: /recipe/{recipeId}/image?lat=42&lng=21&caption=this%20is%20my%20caption Note that caption, lng and lat are all optional, but must go on the request URI as params because this endpoint needs a multipart/mime content header and will not parse JSON in the body along with it. Testing with Postman (validated 11/20/2015): 1) Remove the Content-Type header; add authentication information 2) On the request, click Body and choose "form-data", then add a line item with "key" column set to "file" and on the right, change the type of the input from Text to File. Browse and choose a JPG.