Redis Lock Workflow Template
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This workflow uses Redis to prevent concurrent execution of the same workflow.
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About This Workflow
Redis Lock Workflow
This template demonstrates how to implement a Redis-based locking mechanism in n8n to ensure that only one instance of a workflow runs at a time. This is particularly useful for preventing race conditions or duplicate processing of incoming requests.
Key Features
- Incoming webhook trigger for external requests.
- Redis GET operation to check for an existing lock.
- Redis SET operation to acquire a lock with a Time To Live (TTL).
- Conditional logic to handle lock acquisition success, failure, or duplicate requests.
- Optional waiting mechanism for retrying lock acquisition.
- Workflow execution branches based on lock status.
- Redis DELETE operation to release the lock upon completion.
How To Use
- Trigger: Configure the 'Incoming Webhook Data' node with your desired webhook path.
- Data Extraction: The 'Fetch Webhook Data & Declare lockValue' node parses incoming payload and creates a unique
lockValue. - Redis Credentials: In the 'Check Redis Lock', 'Acquire Redis Lock', and 'Discard Redis Lock' nodes, replace 'YOUR_CREDENTIAL_HERE' with your actual Redis credentials ID.
- Lock Acquisition: The workflow first checks if a lock exists. If not, it attempts to acquire one using 'Acquire Redis Lock'.
- Conditional Execution: The 'Workflow Switch' node directs the flow based on the lock status.
- Workflow Logic: Execute your primary workflow logic in the nodes connected to the 'Acquire Redis Lock' success path (e.g., 'Workflow 1', 'Workflow 2', 'Workflow 3').
- Lock Release: Ensure the 'Discard Redis Lock' node is executed after your workflow logic to release the lock.
Apps Used
Workflow JSON
{
"id": "22077b77-9135-449f-bac1-7d1caf133c37",
"name": "Redis Lock Workflow Template",
"nodes": 0,
"category": "Locking",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: 22077b77-9135...
About the Author
Crypto_Watcher
Web3 Developer
Automated trading bots and blockchain monitoring workflows.
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