Route to proxy requets

[dturton]

Would it be simple to have a route that proxies the request to a local server on another port? The idea would be to unify the interface.

Thanks,
David

[evantahler]

Are you having trouble getting this to work, or are you looking for a more convenient way to set this up?

[dturton]

I was not sure how to set it up. Should it be a custom server? The web server routes require an action, should it be implemented as an action ?

…

On Mon, Dec 5, 2022 at 6:48 PM Evan Tahler ***@***.***> wrote: Are you having trouble getting this to work, or are you looking for a more convenient way to set this up? — Reply to this email directly, view it on GitHub <#2349 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAAD3MYUSPLILE354WVY75LWLZ5MPANCNFSM6AAAAAASU3JRUQ> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[evantahler]

Yep! You'll want to make an action that only works for HTTP/web servers. I like the http-proxy package to handle the details:

import { Action, ParamsFrom, Connection } from "actionhero";
import { IncomingMessage, ServerResponse } from "http";
import * as httpProxy from "http-proxy"; // npm install --save --exact http-proxy @types/http-proxy

const PROXY_URL = "https://www.google.com";
const proxy = httpProxy.createProxyServer({});

export class ProxyAction extends Action {
  constructor() {
    super();
    this.name = "proxy";
    this.description = "I Proxy web requests";
    this.inputs = {};
    this.blockedConnectionTypes = ["websocket"]; // be sure to block all connection types (servers) other than 'web'
  }

  async run(data: {
    params: ParamsFrom<ProxyAction>;
    connection: Connection;
    toRender: boolean;
  }) {
    const { req, res }: { req: IncomingMessage; res: ServerResponse } =
      data.connection.rawConnection;

    await new Promise((success, failure) => {
      proxy.web(req, res, { target: PROXY_URL }, (error) => {
        if (error) {
          return failure(error);
        }

        data.toRender = false; // prevent actionhero from responding to this connection if the proxy was successful
        return success(null);
      });
    });
  }
}

[dturton]

Thank you @evantahler. Exactly what I was looking for.