deno-redis

An experimental implementation of redis client for deno

Usage

needs --allow-net privilege

Stateless Commands

import {connect} from "https://denopkg.com/keroxp/deno-redis/redis.ts"
const redis = await connect("127.0.0.1:6379");
const ok = await redis.set("hoge","fuga")
const fuga = await redis.get("hoge");

PubSub

const sub = await redis.subscribe("channel");
(async function() {
  for await (const {channel, message} of sub.receive()) {
    // on message
  }
})()

Advanced Usage

Pipelining

https://redis.io/topics/pipelining

const redis = await connect("127.0.0.1:6379");
const pl = redis.pipeline();
await Promise.all([
    pl.ping(),
    pl.ping(),
    pl.set("set1", "value1"),
    pl.set("set2", "value2"),
    pl.mget("set1", "set2"),
    pl.del("set1"),
    pl.del("set2")
]);
const replies = await pl.flush();

TxPipeline (pipeline with MULTI/EXEC)

We recommend to use tx() instead of multi()/exec() for transactional operation.
MULTI/EXEC are potentially stateful operation so that operation's atomicity is guaranteed but redis's state may change between MULTI and EXEC.

WATCH is designed for these problems. You can ignore it by using TxPipeline because pipelined MULTI/EXEC commands are strictly executed in order at the time and no changes will happen during execution.

See detail https://redis.io/topics/transactions

const tx = redis.tx();
await Promise.all([
   tx.set("a", "aa"),
   tx.set("b", "bb"),
   tx.del("c"),
])
await tx.flush();
// MULTI
// SET a aa
// SET b bb
// DEL c
// EXEC

Compatibility Table (5.0.3)

Connection

• AUTH
• ECHO
• PING
• QUIT
• SELECT
• SWAPDB

Keys

• DEL
• DUMP
• EXISTS
• EXPIRE
• EXPIREAT
• KEYS
• MIGRATE
• MOVE
• OBJECT
• PERSIST
• PEXPIRE
• PEXPIREAT
• PTTL
• RANDOMKEY
• RENAME
• RENAMENX
• RESTORE
• SORT
• TOUCH
• TTL
• TYPE
• UNLINK
• WAIT
• SCAN

String

• APPEND
• BITCOUNT
• BITFIELD
• BITOP
• BITPOS
• DECR
• DECRBY
• GET
• GETBIT
• GETRANGE
• GETSET
• INCR
• INCRBY
• INCRBYFLOAT
• MGET
• MSET
• MSETNX
• PSETEX
• SET
• SETBIT
• SETEX
• SETNX
• SETRANGE
• STRLEN

List

• BLPOP
• BRPOP
• BRPOPLPUSH
• LINDEX
• LINSERT
• LLEN
• LPOP
• LPUSH
• LPUSHX
• LRANGE
• LREM
• LSET
• LTRIM
• RPOP
• RPOPLPUSH
• RPUSH
• RPUSHX

Set

• SADD
• SCARD
• SDIFF
• SDIFFSTORE
• SINTER
• SINTERSTORE
• SISMEMBER
• SMEMBERS
• SMOVE
• SPOP
• SRANDMEMBER
• SREM

SortedSet

• BZPOPMIN
• BZPOPMAX
• ZADD
• ZCARD
• ZCOUNT
• ZINCRBY
• ZINTERSTORE
• ZLEXCOUNT
• ZPOPMAX
• ZPOPMIN
• ZRANGE
• ZRANGEBYLEX
• ZREVRANGEBYLEX
• ZRANGEBYSCORE
• ZRANK
• ZREM
• ZREMRANGEBYLEX
• ZREMRANGEBYRANK
• ZREMRANGEBYSCORE
• ZREVRANGE
• ZREVRANGEBYSCORE
• ZREVRANK
• ZSCORE
• ZUNIONSTORE
• ZSCAN

HashMap

• HDEL
• HEXISTS
• HGET
• HGETALL
• HINCRBY
• HINCRBYFLOAT
• HKEYS
• HLEN
• HMGET
• HMSET
• HSET
• HSETNX
• HSTRLEN
• HVALS
• HSCAN

GEO

• GEOADD
• GEOADD
• GEOHASH
• GEOPOS
• GEODIST
• GEORADIUS
• GEORADIUSBYMEMBER

Stream

WIP

Server

WIP

Cluster

None

HyperLogLog

• PFADD
• PFCOUNT
• PFMERGE

Multi

• MULTI
• EXEC
• DISCARD
• WATCH
• UNWATCH

PubSub

• PSUBSCRIBE
• PUBSUB
• PUBLISH
• PUNSUBSCRIBE
• SUBSCRIBE
• UNSUBSCRIBE

Scripting

• EVAL
• EVALSHA
• SCRIPT DEBUG
• SCRIPT EXISTS
• SCRIPT FLUSH
• SCRIPT KILL
• SCRIPT LOAD