Publishing Articles to WordPress via REST API with n8n and Application Passwords

Connecting automation pipelines directly to WordPress allows you to draft articles programmatically without ever opening the admin dashboard. Here is how I set up n8n to publish draft posts with custom tags and categories. Authentication: WordPress Application Passwords Instead of sharing master admin credentials, go to Users > Profile in WordPress, scroll down to Application … Read more

Catching and Alerting Failed Nodes in n8n Workflows with Discord Webhooks

There is nothing worse than discovering an automation stopped running three days ago because of an expired API token. To prevent silent failures, I configured a centralized Error Trigger workflow in n8n. How Error Triggers Work in n8n In workflow settings, you can designate an Error Workflow. Whenever any node crashes, n8n invokes this handler … Read more

Handling Webhook Timeouts in n8n When Processing Heavy AI Workflows

When triggering an n8n workflow via an incoming webhook that runs an LLM chain, the HTTP request frequently timed out with a 504 Gateway Timeout because the AI analysis took 20 to 45 seconds. The Architectural Fix: Decoupling Response from Processing Instead of making the client wait for the final AI output, I changed the … Read more

Syncing Google Sheets to PostgreSQL in n8n Without Dropping Data

Many clients use Google Sheets as a lightweight CRM. To build real analytics, I needed an automated pipeline in n8n that periodically syncs modified rows into an internal PostgreSQL database. The Problem: Duplicate Primary Key Collisions A naive sync workflow crashes whenever an existing row is re-saved, throwing duplicate key value violates unique constraint. Conversely, … Read more

How I Fixed Error 429 (Too Many Requests) in High-Volume Telegram n8n Workflows

Last week I deployed an n8n workflow designed to broadcast automated database alerts to a private Telegram channel. When the database triggered an alert for 150 items simultaneously, Telegram instantly blocked the bot with a 429 Too Many Requests: retry after X seconds error. The Real-World Bottleneck Telegram allows a maximum of 30 messages per … Read more