feat: koa support (#1792)

README.md

@@ -579,6 +579,25 @@ app.use(devMiddleware(compiler, devMiddlewareOptions));
 app.listen(3000, () => console.log("Example app listening on port 3000!"));
 ```
 
+### Koa
+
+```js
+const Koa = require("koa");
+const webpack = require("webpack");
+const webpackConfig = require("./test/fixtures/webpack.simple.config");
+const middleware = require("./dist");
+
+const compiler = webpack(webpackConfig);
+const devMiddlewareOptions = {
+  /** Your webpack-dev-middleware-options */
+};
+const app = new Koa();
+
+app.use(middleware.koaWrapper(compiler, devMiddlewareOptions));
+
+app.listen(3000);
+```
+
 ### Hapi
 
 ```js
@@ -613,10 +632,6 @@ process.on("unhandledRejection", (err) => {
 });
 ```
 
-### Koa
-
-Soon...
-
 ### Fastify
 
 Fastify interop will require the use of `fastify-express` instead of `middie` for providing middleware support. As the authors of `fastify-express` recommend, this should only be used as a stopgap while full Fastify support is worked on.

package.json

@@ -90,6 +90,7 @@
     "husky": "^9.0.10",
     "jest": "^29.3.1",
     "joi": "^17.12.2",
+    "koa": "^2.15.2",
     "lint-staged": "^15.2.0",
     "npm-run-all": "^4.1.5",
     "prettier": "^3.2.4",