w3resource

Redis Pub/Sub: PUBLISH channel message

Redis PUBLISH Command

Redis PUBLISH command is used to post a message to a channel.

Here are some common uses and scenarios for the "PUBLISH" command:

  • Message Broadcasting: Sends a message to all subscribers of a specified channel, enabling real-time communication.
  • Event Notification: Useful for notifying multiple clients about events, such as updates or changes in the system.
  • Decoupled Architecture: Facilitates a decoupled architecture where publishers and subscribers operate independently, improving scalability.
  • Data Distribution: Distributes data or updates across different services or clients in real-time.

Syntax:

PUBLISH channel message

Available since

2.0.0.

Return Value

Integer reply: the number of clients that received the message.

Return Value Type

Integer

Example: Redis PUBLISH

redis 127.0.0.1:6379> PUBLISH mychannel "hello, i m here"
(integer) 1

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Next: PUNSUBSCRIBE



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https://www.w3resource.com/redis/redis-publish-channel-message.php