doc & test for RequestBody

gotham_restful/src/types.rs

@@ -93,12 +93,31 @@ impl<T : DeserializeOwned> FromBody for T
 pub struct FromBodyNoError;
 
 
-/// A type that can be used inside a request body. Implemented for every type that is
-/// deserializable with serde. If the `openapi` feature is used, it must also be of type
-/// `OpenapiType`.
+/**
+A type that can be used inside a request body. Implemented for every type that is deserializable
+with serde. If the `openapi` feature is used, it must also be of type [`OpenapiType`].
+
+If you want a non-deserializable type to be used as a request body, e.g. because you'd like to
+get the raw data, you can derive it for your own type. All you need is to have a type implementing
+[`FromBody`] and optionally a list of supported media types:
+
+```rust
+# #[macro_use] extern crate gotham_restful;
+# use gotham_restful::*;
+#[derive(FromBody, RequestBody)]
+#[supported_types(mime::IMAGE_GIF, mime::IMAGE_JPEG, mime::IMAGE_PNG)]
+struct RawImage {
+	content: Vec<u8>,
+	content_type: Mime
+}
+```
+
+ [`FromBody`]: trait.FromBody.html
+ [`OpenapiType`]: trait.OpenapiType.html
+*/
 pub trait RequestBody : ResourceType + FromBody
 {
-	/// Return all types that are supported as content types.
+	/// Return all types that are supported as content types. Use `None` if all types are supported.
 	fn supported_types() -> Option<Vec<Mime>>
 	{
 		None

gotham_restful/tests/custom_request_body.rs

@@ -0,0 +1,49 @@
+mod custom_request_body
+{
+
+
+use gotham::{
+	hyper::header::CONTENT_TYPE,
+	router::builder::*,
+	test::TestServer
+};
+use gotham_restful::*;
+use mime::TEXT_PLAIN;
+
+const RESPONSE : &[u8] = b"This is the only valid response.";
+
+#[derive(Resource)]
+#[resource(create)]
+struct FooResource;
+
+#[derive(FromBody, RequestBody)]
+#[supported_types(TEXT_PLAIN)]
+struct Foo {
+	content: Vec<u8>,
+	content_type: Mime
+}
+
+#[create(FooResource)]
+fn create(body : Foo) -> Raw<Vec<u8>> {
+	Raw::new(body.content, body.content_type)
+}
+
+
+#[test]
+fn test()
+{
+	let server = TestServer::new(build_simple_router(|router| {
+		router.resource::<FooResource>("foo");
+	})).unwrap();
+	
+	let res = server.client()
+		.post("http://localhost/foo", RESPONSE, TEXT_PLAIN)
+		.perform().unwrap();
+	assert_eq!(res.headers().get(CONTENT_TYPE).unwrap().to_str().unwrap(), "text/plain");
+	let res = res.read_body().unwrap();
+	let body : &[u8] = res.as_ref();
+	assert_eq!(body, RESPONSE);
+}
+
+
+}