From a4ec44c163b7bf7733adb28387844e8fb29ebd53 Mon Sep 17 00:00:00 2001
From: mgraf158 <40839831+mgraf158@users.noreply.github.com>
Date: Wed, 28 Jan 2026 12:34:41 +0100
Subject: [PATCH] feat: automatically use EnvHttpProxyAgent for proxy support

This patch makes pino-loki automatically detect proxy settings from the
environment (HTTP_PROXY / HTTPS_PROXY / NO_PROXY) using undici's
EnvHttpProxyAgent. This ensures that logs are correctly sent in
corporate network environments without requiring manual dispatcher injection.
---
 src/log_pusher.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/log_pusher.ts b/src/log_pusher.ts
index f61a877..0588d5f 100644
--- a/src/log_pusher.ts
+++ b/src/log_pusher.ts
@@ -1,6 +1,7 @@
 import debug from './debug.ts'
 import { LogBuilder } from './log_builder.ts'
 import type { PinoLog, LokiOptions } from './types.ts'
+import { Dispatcher, EnvHttpProxyAgent } from "undici";
 
 class RequestError extends Error {
   responseBody: string
@@ -18,9 +19,11 @@ class RequestError extends Error {
 export class LogPusher {
   #options: LokiOptions
   #logBuilder: LogBuilder
+  #agent: Dispatcher
 
   constructor(options: LokiOptions) {
     this.#options = options
+    this.#agent = new EnvHttpProxyAgent() // for automatic HTTP-proxy support
 
     this.#logBuilder = new LogBuilder({
       levelMap: options.levelMap,
@@ -83,6 +86,7 @@ export class LogPusher {
             'Content-Type': 'application/json',
           },
           body: JSON.stringify({ streams: lokiLogs }),
+          dispatcher: this.#agent,
         },
       )