cloudflare-tcp-fetcher

A Fetcher implementation using the Cloudflare TCP Sockets API.

Getting started

Install the package

npm install cloudflare-tcp-fetcher

Using the fetchUsingTcp function

You can also input the TcpFetcher in the init object to reuse a connection.

import { fetchUsingTcp } from "cloudflare-tcp-fetcher";

export default {
  async fetch(request: Request, env: never, ctx: ExecutionContext): Promise<Response> {
    return fetchUsingTcp("https://google.com", {
      method: "GET"
    });
  }
}

Using the TcpFetcher class

You can re-use the TcpFetcher class until the worker is closed.

Note: you can not use the TcpFetcher instance with fetch because the worker will complain that TcpFetcher is not an instance of Fetcher :/

import { TcpFetcher } from "cloudflare-tcp-fetcher";

export default {
  async fetch(request: Request, env: never, ctx: ExecutionContext): Promise<Response> {
    const fetcher = new TcpFetcher();

    return fetcher.fetch(new Request("https://google.com", {
      method: "GET"
    }));
  }
}

Examples

Using the response body

import { fetchUsingTcp } from "cloudflare-tcp-fetcher";

export default {
  async fetch(request: Request, env: never, ctx: ExecutionContext): Promise<Response> {
    const response = await fetchUsingTcp("https://httpbin.org/delete", {
      method: "DELETE"
    });

    return Response.json({
      result: await response.json()
    });
  }
}