Build a full REST-API with n8n webhooks

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1. Workflow Overview

What is it? A clean, extensible REST style API routing template for n8n webhooks with up to 3 path levels. How does it work? 1. Serves API routes via Webhooks with path variables 2. Normalizes inco...

Best for

Engineering automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.set, n8n-nodes-base.webhook, n8n-nodes-base.stickynote, n8n-nodes-base.code, n8n-nodes-base.respondtowebhook, n8n-nodes-base.noop, n8n-nodes-base.executeworkflow, n8n-nodes-base.merge

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Christian Knoflach.

Original n8n.io source

1.1 Workflow description

Title: Build a full REST-API with n8n webhooks
Workflow name: Build a full REST-API with n8n webhooks

What is it?

A clean, extensible REST-style API routing template for n8n webhooks with up to 3 path levels.

How does it work?

Serves API routes via Webhooks with path variables
Normalizes incoming requests into "global" _REQUEST and _CFG nodes
Flexible routing with Switch-nodes based on path segments & request method

Key features

No setup required
Supports multiple HTTP methods
Global config via code node
Separation of concern between config/request and implementation data flow
Easy to extend

Use cases

Prototyping backend APIs via JSON-responses
Serving interactive websites via HTML-nodes + TEXT responses

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - -> POST

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 2 - -> GET

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 3 - -> PUT

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 4 - -> DELETE

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 5 - v1/seg1

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

Block 6 - v1/seg2

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

Block 7 - v1/seg3

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

Block 8 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 10 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - _CFG

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 12 - _REQUEST

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 13 - Respond to Webhook1

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.5

Block 14 - Invalid Route

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.5

Block 15 - Clear JSON

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 16 - Invalid Route1

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.5

Block 17 - Invalid Route2

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.5

Block 18 - Invalid Route3

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.5

Block 19 - Respond to Webhook

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.5

Block 20 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 21 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 22 - Routing

Type / Role: n8n-nodes-base.noOp - noOp
Config choices: Version 1

Block 23 - Check baz status

Type / Role: n8n-nodes-base.noOp - noOp
Config choices: Version 1

Block 24 - Create new baz

Type / Role: n8n-nodes-base.noOp - noOp
Config choices: Version 1

Showing the first 24 of 49 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Build a full REST-API with n8n webhooks
Complexity	advanced
Nodes	49
Categories	Engineering
Author	Christian Knoflach
Published	18 Jan 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/12789/12789.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Engineering workflows

Frequently asked questions

What does Build a full REST-API with n8n webhooks do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Engineering use case.

Christian Knoflach

1 workflow

Nodes

n8n-nodes-base.set n8n-nodes-base.webhook n8n-nodes-base.stickynote n8n-nodes-base.code n8n-nodes-base.respondtowebhook n8n-nodes-base.noop n8n-nodes-base.executeworkflow n8n-nodes-base.merge

Complexity

advanced

Published 18 Jan 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/12789/12789.json

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Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

What is it?

How does it work?

Key features

Use cases

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - -> POST

Block 2 - -> GET

Block 3 - -> PUT

Block 4 - -> DELETE

Block 5 - v1/seg1

Block 6 - v1/seg2

Block 7 - v1/seg3

Block 8 - Sticky Note

Block 9 - Sticky Note1

Block 10 - Sticky Note2

Block 11 - _CFG

Block 12 - _REQUEST

Block 13 - Respond to Webhook1

Block 14 - Invalid Route

Block 15 - Clear JSON

Block 16 - Invalid Route1

Block 17 - Invalid Route2

Block 18 - Invalid Route3

Block 19 - Respond to Webhook

Block 20 - Sticky Note3

Block 21 - Sticky Note4

Block 22 - Routing

Block 23 - Check baz status

Block 24 - Create new baz

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions