docs: included required header for API calls

README.md

@@ -49,9 +49,12 @@ Routes Minecraft client connections to backend servers based upon the requested
 
 # REST API
 
-* `GET /routes`
+* `GET /routes` (with `Accept: application/json`)
+
    Retrieves the currently configured routes
-* `POST /routes`
+
+* `POST /routes` (with `Content-Type: application/json`)
+
   Registers a route given a JSON body structured like:
   ```json
   {
@@ -59,14 +62,18 @@ Routes Minecraft client connections to backend servers based upon the requested
     "backend": "HOST:PORT"
   }
   ```
-* `POST /defaultRoute`
+  
+* `POST /defaultRoute` (with `Content-Type: application/json`)
+  
   Registers a default route to the given backend. JSON body is structured as:
   ```json
   {
     "backend": "HOST:PORT"
   }
   ```
+
 * `DELETE /routes/{serverAddress}`
+
   Deletes an existing route for the given `serverAddress`
   
 # Docker Multi-Architecture Image

docs/docker-compose.yml

@@ -11,8 +11,13 @@ services:
       EULA: "TRUE"
       TYPE: FORGE
   router:
-    image: itzg/mc-router
+    image: ${MC_ROUTER_IMAGE:-itzg/mc-router}
+    environment:
+      # enable API
+      API_BINDING: ":25564"
     ports:
       - 25565:25565
+      # bind the API port to only loopback to avoid external exposure
+      - 127.0.0.1:25564:25564
     command: --mapping=vanilla.example.com=vanilla:25565,forge.example.com=forge:25565