+ ejson middleware

package.json

@@ -21,6 +21,7 @@
     "babel-preset-es2015": "^6.5.0",
     "babel-preset-stage-0": "^6.5.0",
     "co": "^4.4.0",
+    "ejson": "^2.1.2",
     "instagram-node": "^0.5.1",
     "koa": "^2.0.0-alpha.3",
     "koa-bodyparser": "^3.0.0",

src/middlewares/ejson.js

@@ -0,0 +1,15 @@
+import {parse} from 'ejson';
+
+export function ejson() {
+    return async (ctx, next) => {
+        let type = ctx.request.headers['content-type'];
+        let data = ctx.request.body;
+
+        if (type === 'application/ejson'){
+            data = typeof data === 'string' ? data : JSON.stringify(data);
+            ctx.request.body = parse(data);
+        }
+
+        await next();
+    };
+}

src/server.js

@@ -25,7 +25,11 @@ export default function(){
     const app = new Koa();
     app.proxy = true;
 
-    app.use(bodyParser());
+    app.use(bodyParser({
+        extendTypes: {
+            json: 'application/ejson'
+        }
+    }));
     app.use($(logger()));
     app.use(api());
     app.use($(conditional()));