Test Webhooks in n8n Without Changing WEBHOOK_URL (PostBin & BambooHR Example)

Using PostBin to Test Webhooks Without Changing WEBHOOKURL How it Works Many new n8n users struggle with testing webhooks when running n8n on localhost, as external services cannot reach localhost. This workflow introduces a technique using PostBin, which provides a temporary, publicly accessible URL to receive webhook requests. Generates a temporary webhook endpoint via PostBin. Uses this endpoint in place of localhost to test webhooks. Captures and displays the incoming webhook request data. Enables debugging and iterating without modifying the WEBHOOKURL environment variable. Set Up Steps Estimated time: ~5–10 minutes Create a PostBin instance to generate a publicly accessible webhook URL

Help me set up the n8n workflow "Test Webhooks in n8n Without Changing WEBHOOK_URL (PostBin & BambooHR Example)" (https://n8n.io/workflows/2869). It uses: HTTP Request, Slack, BambooHR, PostBin, DebugHelper, Basic LLM Chain, OpenAI Chat Model, Auto-fixing Output Parser, Structured Output Parser. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.