feat: handler method sample implementation

Author: Kristjan Kosic - Chris

README.md

@@ -93,6 +93,12 @@ You should receive the following response:
 }
 ```
 
+You can also try the following call:
+```bash
+curl --request GET \
+  --url http://127.0.0.1:5003/config
+```
+
 You can see the code and registered route here:
 https://github.com/learn-ark/dapp-core-module-http-server-template/blob/master/src/server.ts#L49-L56.
 

src/handlers.ts

@@ -0,0 +1,28 @@
+import { app } from "@arkecosystem/core-container";
+import { Plugins } from "@arkecosystem/core-utils";
+
+export const config = {
+    async handler() {
+        const appConfig = app.getConfig();
+
+        return {
+            data: {
+                version: app.getVersion(),
+                network: {
+                    version: appConfig.get("network.pubKeyHash"),
+                    name: appConfig.get("network.name"),
+                    nethash: appConfig.get("network.nethash"),
+                    explorer: appConfig.get("network.client.explorer"),
+                    token: {
+                        name: appConfig.get("network.client.token"),
+                        symbol: appConfig.get("network.client.symbol"),
+                    },
+                },
+                plugins: Plugins.transformPlugins(appConfig.config.plugins),
+            },
+        };
+    },
+    config: {
+        cors: true,
+    },
+};

src/server.ts

@@ -1,7 +1,8 @@
 import { app } from "@arkecosystem/core-container";
-import { createServer, mountServer } from "@arkecosystem/core-http-utils";
+import { createServer, mountServer, plugins } from "@arkecosystem/core-http-utils";
 import { Logger } from "@arkecosystem/core-interfaces";
 import Hapi from "@hapi/hapi";
+import * as handlers from "./handlers";
 
 export class Server {
     private logger = app.resolvePlugin<Logger.ILogger>("logger");
@@ -47,6 +48,10 @@ export class Server {
     }
 
     private static async registerRoutes(name: string, server: Hapi.Server): Promise<void> {
+        await server.register({
+            plugin: plugins.corsHeaders,
+        });
+
         server.route({
             method: "GET",
             path: "/",
@@ -55,6 +60,8 @@ export class Server {
             },
         });
 
+        server.route([{ method: "GET", path: "/config", ...handlers.config }]);
+
         await mountServer(`Custom HTTP Public ${name.toUpperCase()} API`, server);
     }
 }