Webmachine POST Example

Published Saturday, May 30, 2009 by Bryan

Many people have asked for an example Webmachine resource that responds to POST. If you follow my twitter feed, you may have caught this gem.

I figured that example could use a little fleshing out, so I've added a resource to my wmexamples repo.

formjson_resourc.erl makes an attempt at demonstrating the simplest way to handle a POST, while also demonstrating the difference between content-producing functions (to_json/2 in this example, and others named in content_types_provided/2), which put content in the response body simply by returning it, and other functions, which have to put content in the response body by returning a modified ReqData.

For another example of handling POST, read demo_fs_resource.erl that comes with Webmachine. It implements post_is_create/2, create_path/2, content_types_accepted/2, and accept_content/2 to handle POST requests. (Incidentally, demo_fs_resource is a good example of many Webmachine resource functions.)

Updated to include content_types_accepted/2 in the list of functions handling POST requests - thanks for catching it, Lou!

Categories: Development Webmachine