Finish documenting the codebase.

README.md

@@ -46,6 +46,9 @@ Afterward you can run using `mirror-server`
 
 ## Usage
 
+You can get all the options that `mirror-server` supports by running it with
+the help option `--help` or `-h`:
+
 ```console
 $ mirror-server --help
 A simple server for mirror HTTP requests for testing.
@@ -58,3 +61,31 @@ Options:
   -h, --help         Print help
   -V, --version      Print version
 ```
+
+After starting the server, you can send requests to it.  Using `curl` you
+can send `mirror-server` JSON requests:
+
+```console
+$ curl -s -X PUT -D '{"hello": "world"}' -H 'Content-Type: application/json' \
+     http://localhost:8080/api/testing | jq .
+```
+
+And `mirror-server` responds to requests with JSON responses:
+
+```json
+{
+  "method": "PUT",
+  "path": "/api/testing",
+  "host": "localhost:8180",
+  "headers": {
+    "accept": "*/*",
+    "content-length": "18",
+    "content-type": "application/json",
+    "host": "localhost:8080",
+    "user-agent": "curl/7.68.0"
+  },
+  "body": {
+    "hello": "world"
+  }
+}
+```

examples/sample-response.json

@@ -1,15 +0,0 @@
-{
-  "method": "PUT",
-  "path": "/api/testing",
-  "host": "localhost:8180",
-  "headers": {
-    "accept": "*/*",
-    "content-length": "18",
-    "content-type": "application/json",
-    "host": "localhost:8180",
-    "user-agent": "curl/7.68.0"
-  },
-  "body": {
-    "hello": "world"
-  }
-}

src/main.rs

@@ -51,24 +51,12 @@ struct EchoResponse {
 ///
 /// ## Arguments
 /// * `method` - The HTTP [`Method`] used for the request. i.e. `GET`, `POST`, `PATCH`, etc.
-/// TODO: Document the rest of the arguments
+/// * `original_uri` - The URI used for the request.
+/// * `host` - The hostname of the request.
+/// * `header_map` - A map with the headers used during the request.
+/// * `body` - An optional JSON body, if it is past in to the request.
+///     Requires a header of `Content-Type: application/json` and a body passed in the request.
 ///
-/// ## Example
-///
-/// Sending a request using `curl`:
-///
-/// ```console
-/// $ curl -s -X PUT -D '{"hello": "world"}' -H 'Content-Type: application/json' \
-///     http://localhost:8080/api/testing | jq .
-/// ```
-///
-/// Results in a JSON response:
-///
-/// ```json
-#[doc = include_str!("../examples/sample-response.json")]
-/// ```
-///
-
 async fn echo_request(
     method: Method,
     original_uri: OriginalUri,