CODEWITHSUNDEEP
listredisnode-redis
user1234
user1234

Reputation: 335

how to pop multiple list at a time in Redis

I am using node_redis. I want to pop elements from multiple list at a time.
Here is my code. 

setInterval(function () {
    redisClient.rpop('qwerty123', function (errorMessage, responseData) {
        socketData.emit('qwerty123', {
            'qwerty123': responseData.toString()
        });
        });
    redisClient.rpop('qwerty234', function (errorMessage, responseData) {
        socketData.emit('qwerty234', {
            'qwerty234': responseData.toString()
        });});
    redisClient.rpop('qwerty345', function (errorMessage, responseData) {
        socketData.emit('qwerty345', {
            'qwerty345': responseData.toString()
    });});
}, 1000);

It process lists one by one but I want to pop from all three list at same time.

Upvotes: 0

Views: 1755

Answers (1)

antirez
antirez

Reputation: 18504

Using a Redis transaction seems like the most simple way to solve your issue:

MULTI
RPOP key1
RPOP key2
RPOP key3
EXEC

There is more info in the Redis transactions official doc here. In order to use transactions with Node.js, please refer to the client lib documentation.

Upvotes: 2

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