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elysia-ip-caamillo

v0.0.6

Published

![badge](https://github.com/gaurishhs/elysia-ip/actions/workflows/npm-publish.yml/badge.svg)

Downloads

3

Readme

elysia-ip

badge

Get the Client Ip Address in Elysia.

It supports Cloudflare, Fastly and other runtimes as well.

Installation

Requires Bun v1.0.4 or above.

bun a elysia-ip

Documentation

Introduction

This plugin let's you get client's ip address in Elysia.js

It supports Multiple runtimes (Cloudflare, Fastly Edge, etc.)

Usage

import { Elysia } from "elysia";
import { ip } from "elysia-ip";

new Elysia().use(ip()).get("/", ({ ip }) => ip).listen(3000);

How does it work?

It relies on headers for runtimes other than Bun. Cloudflare and other providers send back specific headers, containing the IP address. For example CF-Connecting-IP for Cloudflare and Fastly-Client-IP for Fastly.

We also add support for X-Forwarded-For header (de-facto standard header) and other various headers.

Priority list:

  1. User specified
  2. X-Forwarded-For (de-facto standard header)
  3. CF-Connecting-IP (Cloudflare)
  4. Fastly-Client-IP (Fastly)
  5. X-Real-IP (Apache)
  6. X-Client-IP (Nginx)
  7. X-Cluster-Client-IP (GCP)
  8. X-Forwarded (RFC 7239)
  9. Forwarded-For (RFC 7239)
  10. Forwarded (RFC 7239)
  11. appengine-user-ip (GCP)
  12. true-client-ip (Akamai and Cloudflare)
  13. cf-pseudo-ipv4 (Cloudflare)

You can even specify your own header or list of headers if you want to as following

import { Elysia } from "elysia";
import { ip } from "elysia-ip";

new Elysia().use(ip({ checkHeaders: ["X-Forwarded-For", "X-Real-IP"] })).get("/", ({ ip }) => ip).listen(3000);

or

import { Elysia } from "elysia";
import { ip } from "elysia-ip";

new Elysia().use(ip({ checkHeaders: "X-Forwarded-For" })).get("/", ({ ip }) => ip).listen(3000);

For Bun runtime, We use server.requestIP introduced in Bun v1.0.4

License

MIT

Author

Copyright (c) 2023 Gaurish Sethia, All Rights Reserved.