n8n-nodes-redis-extended

This is a comprehensive n8n community node that provides extensive Redis operations beyond the built-in Redis node.

Features

This node provides complete Redis functionality across all major data types and operations:

Key Management Operations

• EXISTS: Check if one or multiple keys exist
• TYPE: Get the data type of a key
• RENAME: Rename a key
• EXPIRE: Set key expiration in seconds
• TTL: Get time to live for a key
• PERSIST: Remove expiration from a key
• SCAN: Safely iterate over keys with pattern matching

String Operations

• GET: Get the value of a key (basic string retrieval)
• SET: Set the value of a key (basic string storage with optional TTL)
• DEL: Delete one or more keys
• KEYS: Find keys matching a pattern
• APPEND: Append value to a string
• INCR/DECR: Increment/decrement a key by 1
• INCRBY/DECRBY: Increment/decrement a key by specified amount
• MGET: Get multiple keys at once
• MSET: Set multiple key-value pairs at once

Hash Operations

• HGET: Get field value(s) from a Redis hash (single, multiple, or all fields)
• HSET: Set field value(s) in a Redis hash (single, multiple, or from JSON)
• HDEL: Delete hash fields
• HEXISTS: Check if hash field exists
• HINCRBY: Increment hash field by integer
• HKEYS: Get all hash field names
• HVALS: Get all hash values
• HLEN: Get number of fields in hash

List Operations

• LLEN: Get list length
• LRANGE: Get list elements in range
• LINDEX: Get list element by index
• LINSERT: Insert element in list (before/after pivot)
• LTRIM: Trim list to specified range
• LSET: Set list element by index

Set Operations

• SADD: Add members to set
• SREM: Remove members from set
• SMEMBERS: Get all set members
• SISMEMBER: Check if member exists in set
• SCARD: Get set size
• SPOP: Remove and return random set member(s)

Sorted Set (ZSET) Operations

• ZADD: Add members with scores to sorted set
• ZREM: Remove members from sorted set
• ZRANGE: Get sorted set range by rank (with optional scores)
• ZSCORE: Get member score in sorted set
• ZCARD: Get sorted set size
• ZRANK: Get member rank in sorted set

Installation

To use this node in your n8n instance:

1. Install the package:

   npm install n8n-nodes-redis-extended
   

2. Restart your n8n instance

3. The "Redis Extended" node will be available in the node palette

Prerequisites

• n8n version 0.174.0 or later
• Redis server (any version supported by the redis npm package)
• Redis credentials configured in n8n

Usage Examples

Key Management

Check if keys exist:

• Operation: EXISTS
• Key: user:123
• Keys: user:123,user:456,user:789 (optional, for multiple keys)

Set expiration:

• Operation: EXPIRE
• Key: session:abc123
• Seconds: 3600

String Operations

Increment counter:

• Operation: INCRBY
• Key: page_views
• Amount: 5

Get multiple keys:

• Operation: MGET
• Keys: user:name,user:email,user:age

Hash Operations

Set user data from JSON:

• Operation: HSET
• Key: user:123
• Set Mode: JSON Object
• JSON Data: {"name": "John Doe", "email": "john@example.com", "age": 30}

Get specific hash fields:

• Operation: HGET
• Key: user:123
• Get Mode: Multiple Fields
• Fields: name,email

List Operations

Get list range:

• Operation: LRANGE
• Key: recent_orders
• Start: 0
• Stop: 9 (get first 10 items)

Set Operations

Add multiple members:

• Operation: SADD
• Key: user_tags
• Members: premium,verified,active

Sorted Set Operations

Add scored members:

• Operation: ZADD
• Key: leaderboard
• Score-Member Pairs: 100:player1,95:player2,87:player3

Get top players with scores:

• Operation: ZRANGE
• Key: leaderboard
• Start: 0
• Stop: 2
• With Scores: true

Advanced Features

• Dot Notation Support: Use dot notation for nested property names in output
• Bulk Operations: Efficient multiple key/field operations
• TTL Support: Set expiration on hash operations
• Pattern Matching: Safe key iteration with SCAN
• Error Handling: Comprehensive error handling with continue-on-fail support
• Type Safety: Full TypeScript support with proper type definitions

Credentials

This node uses the same Redis credentials as the built-in Redis node. Configure your Redis connection in n8n's credentials section with:

• Host
• Port
• Database
• Username (optional)
• Password (optional)
• SSL/TLS (optional)

Performance Benefits

• Direct Operations: No type detection overhead for specific operations
• Bulk Processing: Multiple keys/fields in single operations
• Safe Iteration: SCAN instead of KEYS for production use
• Connection Pooling: Efficient Redis connection management

Use Cases

• Session Management: Handle user sessions with TTL
• Caching: Advanced cache operations with expiration
• Counters & Analytics: Increment/decrement operations
• Leaderboards: Sorted set operations for rankings
• Tag Systems: Set operations for categorization
• Queue Management: List operations for job queues
• User Profiles: Hash operations for structured data

License

MIT

Version History

• 1.1.0: Complete Redis operations including all basic operations (GET, SET, DEL, KEYS) and advanced data types
• 1.0.0: Initial comprehensive Redis operations including all major data types and commands