node-redis：ErrorReply: ERR wrong number of arguments for ‘auth‘ command

问题描述

环境

$ node -v
v16.14.0

# redis-cli
127.0.0.1:6379> info
# Server
redis_version:5.0.5

版本 package.json

{
  "dependencies": {
    "redis": "^4.2.0"
  }
}

代码

import { createClient } from 'redis'

const REDIS_URL = "redis://root:123456@127.0.0.1:6379"

export async function getRedisClient() {
  // 连接redis
  const client = createClient({
    url: REDIS_URL,
  })

  await client.connect()

  return client
}

报错

node:internal/process/promises:265
            triggerUncaughtException(err, true /* fromPromise */);
            ^

[ErrorReply: ERR wrong number of arguments for 'auth' command]

解决办法

明明是按照格式写的，却报错了

redis[s]://[[username][:password]@][host][:port][/db-number]

按照github上的issues，如果是默认username, 那么需要省略

const REDIS_URL = "redis://:123456@127.0.0.1:6379"

参考 https://github.com/redis/node-redis/issues/1591