router in v3

[Ganbin]

Hi,

I have tried to search before to ask the question, but I didn't find what I was looking so let me ask.

I tried the HMP v3.0.0-beta2. I have a working solution with v2.0.6 but it is not working with v3 and I don't understand why. I have tried multiple things but without success.

Here is my code:

import { createProxyMiddleware } from "http-proxy-middleware";
import { PluginOption } from "vite";

const proxyTable = {
  "localhost:3000": "http://localhost:3001",
  "testnet.localhost:3000": "https://testnet.mysite.come",
  "mainnet.localhost:3000": "https://mysite.come",
};
const proxy = createProxyMiddleware({
  router: proxyTable,
  changeOrigin: true,
}) as any;

export const proxyMiddleware: () => PluginOption = () => ({
  name: "custom-middleware",
  configureServer(server) {
    server.middlewares.use("/v1", proxy);
    server.middlewares.use("/v2", proxy);
    server.middlewares.use("/icons", proxy);
  },
});

I understand that something has changed with the target option where the path should be added in the target option but I'm not sure how this apply to the router option when we use such a mapping object.

Some of my try:

const proxyTable = {
-  "mainnet.localhost:3000": "https://mysite.come",
+  "mainnet.localhost:3000/v1": "https://mysite.come",
};

const proxyTable = {
-  "mainnet.localhost:3000": "https://mysite.come",
+  "mainnet.localhost:3000/v1": "https://mysite.come/v1",
};
-    server.middlewares.use("/v1", proxy);
+    server.middlewares.use(proxy);

Most of the time I get this error:

7:40:49 AM [vite] Internal server error: Must provide a proper URL as target
      at ProxyServer.<anonymous> (/Users/ganbin/Documents/app/node_modules/http-proxy/lib/http-proxy/index.js:69:35)
      at HttpProxyMiddleware.middleware (/Users/ganbin/Documents/app/node_modules/http-proxy-middleware/dist/http-proxy-middleware.js:23:32)
      at process.processTicksAndRejections (node:internal/process/task_queues:95:5)

But some of my tries just don't show any error but the routing is not working.

If I use legacyCreateProxyMiddleware it is working.

Any hint?

[TimJJTing]

Facing same problem here. It seems target must be present in option. But how should I specify target if all the rules are already specified in proxyTable?