32 lines
1.1 KiB
Markdown
32 lines
1.1 KiB
Markdown
---
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title: "WEBHOOK_URL"
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type: concept
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tags: [n8n, environment-variable, webhook, telegram]
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sources: [n8n-configure-telegram-trigger]
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last_updated: 2026-04-22
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---
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## Definition
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`WEBHOOK_URL` 是 n8n 工作流自动化平台的环境变量，用于指定 n8n 实例对外暴露的 HTTPS 基础地址。n8n 基于此地址自动生成各个 Trigger 节点的 Webhook URL。
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## Why It Matters
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Telegram Bot API 要求 Webhook 必须使用 HTTPS 协议。如果 `WEBHOOK_URL` 未设置或指向 HTTP/本地地址，Telegram 会拒绝注册 Webhook 并报错：
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```
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bad webhook: An HTTPS URL must be provided for webhook
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```
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## Configuration in Docker
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在 Docker Compose 或 Docker Desktop 中设置：
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```yaml
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environment:
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- WEBHOOK_URL=https://n8n.cpolar.top
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```
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## Related Entities
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- [[n8n]] — 读取 WEBHOOK_URL 环境变量的工作流平台
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- [[Telegram]] — 要求 HTTPS Webhook 的消息平台
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## Related Concepts
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- [[Webhook]] — WEBHOOK_URL 生成的 HTTPS URL 用于 Webhook 注册
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- [[Telegram Trigger]] — 依赖 WEBHOOK_URL 的 n8n 节点
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