Lesson 6. Conditions and Branching: IF Node

Lesson 6. Conditions and Branching: IF Node#

Goal: learn to build logic with conditions (if... then... else...).

Task#

Get the Bitcoin price. If the price is above $50,000 — send "Bitcoin is rising! 🚀". Otherwise — send "Bitcoin is stable".

Step 1. Use the Workflow from Lesson 5#

Open the "Bitcoin Price" workflow (or create a new one).

Scheme:

Manual Trigger → HTTP Request → Set → IF → Telegram

Step 2. Add IF Node After the Set Node#

1. Click "+" to the right of the Set node

2. Find the IF node

3. Configure the condition:

   • Value 1: {{ $json.price }}

   • Operation: Larger (greater than)

   • Value 2: 50000

4. Click "Execute Node"

What happens:

The IF node has two outputs:

• true (top branch) — if the condition is met (price > 50000)

• false (bottom branch) — if the condition is not met (price ≤ 50000)

Step 3. Add Telegram Node to the "true" Branch#

1. Click "+" on the top output of the IF node

2. Add the Telegram node

3. Configure the message:

   • Text: Bitcoin is rising! Price: ${{ $json.price }} 🚀

Step 4. Add Telegram Node to the "false" Branch#

1. Click "+" on the bottom output of the IF node

2. Add the Telegram node

3. Configure the message:

   • Text: Bitcoin is stable. Price: ${{ $json.price }}

Step 5. Test#

Click "Execute Workflow" → depending on the current price, one of the branches will run.

Done! You've learned how to create branching logic.

Module Practice#

Practice Task 1: Automatic Google Sheets Backup#

Task: every day at 11:00 PM, copy data from Google Sheets and send a CSV file to yourself in Telegram.

Nodes:

1. Cron (trigger: every day at 11:00 PM)

2. Google Sheets (action: Read, read all rows)

3. Convert to File (convert data to CSV)

4. Telegram (send file)

Checklist:

• Workflow created

• Cron set to 11:00 PM

• Google Sheets connected (credentials configured)

• Data converted to CSV

• File sent to Telegram

• Workflow activated

Practice Task 2: New Lead Notification#

Task: when a new row is added to Google Sheets (table "Leads"), send a Telegram notification: "New lead: [Name] ([Email])".

Nodes:

1. Google Sheets Trigger (trigger: On Row Added)

2. Telegram (send message)

Checklist:

• "Leads" table created (fields: Name, Email)

• Google Sheets Trigger configured

• Telegram credentials configured

• Testing: added a row → received message

• Workflow activated

Practice Task 3: Price Monitoring with Condition#

Task: every hour, check the Ethereum price. If the price is above $3000 — send "Ethereum is rising!". If below $2000 — send "Ethereum is falling!". Otherwise — don't send anything.

Nodes:

1. Cron (trigger: every hour)

2. HTTP Request (get Ethereum price via CoinGecko API)

3. Set (extract price)

4. IF (price > 3000?)

5. Telegram (true branch: "Ethereum is rising!")

6. IF (price < 2000?) — connect to the false branch of the first IF

7. Telegram (true branch: "Ethereum is falling!")

Checklist:

• Workflow created

• Cron set to every hour

• HTTP Request works (gets Ethereum price)

• Conditions configured (> 3000, < 2000)

• Telegram credentials configured

• Testing: run manually, both branches checked

• Workflow activated

Artifacts#

After completing the module you will have:

1. Three Working Workflows in n8n#

• Morning Notification (Cron + Telegram)

• Bitcoin Price (HTTP Request + Telegram)

• Price Condition (HTTP Request + IF + Telegram)

2. Understanding of n8n Basics#

• what nodes are and how to connect them

• how to make HTTP requests

• how to process JSON

• how to build conditions (IF)

3. Checklist "How to Create a Workflow in n8n"#

• Define the task (what the workflow should do)

• Choose a trigger (Cron, Webhook, Manual, service trigger)

• Add action nodes (HTTP Request, Google Sheets, Telegram, etc.)

• Configure credentials (API keys, tokens)

• Test each node (Execute Node)

• Add logic (IF, Switch) if needed

• Test the entire workflow (Execute Workflow)

• Save and activate the workflow

What's Next: Resources for Deeper Learning#

Official Documentation#

• n8n Documentation: docs.n8n.io

• n8n Community Forum: community.n8n.io

• n8n YouTube: workflow examples and tutorials

English Courses and Resources#

1. "n8n for Beginners" course (YouTube)

• search for popular tutorials and creators

• duration: 3–5 hours

• topics: from installation to complex automations

2. n8n Community Forum

• workflow examples, news, discussions

3. Courses on Udemy / Coursera / Udacity

• search for n8n courses; they appear regularly

What to Learn Next (Advanced Level)#

If you want to continue learning n8n, here are topics for deeper study:

1. Advanced nodes:

• Code (JavaScript) — write custom code to process data

• Function — create reusable functions

• Loop — process lists in a loop

• Split In Batches — process large data arrays in chunks

2. AI Integration:

• OpenAI — text generation, content analysis

• Pinecone / Weaviate — vector databases for AI

• LangChain — build chains with AI models

3. Working with Databases:

• PostgreSQL / MySQL / MongoDB — direct connection to databases

• SQL queries — read and write data via SQL

4. Error Handling:

• Error Trigger — what to do when a workflow fails

• Retry — retry requests on errors

5. Webhook and API:

• Webhook — receive data from external services

• Respond to Webhook — send a response back

6. Optimization and Scaling:

• Sub-workflows — break complex workflows into parts

• Queue Mode — process tasks in a queue (for high load)

Where to Find Ready-Made Workflows#

1. n8n Templates:

• n8n.io/workflows — library of ready-made workflows (import with one click)

2. GitHub:

• search for repositories with n8n workflows (examples: email automation, CRM integration, data parsing)

3. Community Forum:

• users share their workflows (forum: community.n8n.io)

Materials for the Website#

Flashcards#