'Node Redis does not work on my windows computer even though the server is up and running
const express = require("express");
const redis = require("redis");
const app = express();
const client = redis.createClient({
url: "redis://[email protected]",
});
client.on("connect", function () {
console.log("redis connected");
console.log(`connected ${redisClient.connected}`);
});
client.on("error", (err) => {
console.log(err);
});
app.listen(process.env.PORT || 3000, () => {
console.log("Node server started");
});
The above code does not show any connection to redis server even though I have checked the EC2 redis instance by connecting using Redsmin. hosting details in Redsmin
This is a very simple thing to do but the error that I get cannot be googled.
Node server started C:\Users\Sithira_105661\Desktop\Projects\Learning\Redis\node_modules@node-redis\client\dist\lib\client\index.js:387 return Promise.reject(new errors_1.ClientClosedError()); ^
ClientClosedError: The client is closed at Commander._RedisClient_sendCommand (C:\Users\Sithira_105661\Desktop\Projects\Learning\Redis\node_modules@node-redis\client\dist\lib\client\index.js:387:31) at Commander.commandsExecutor (C:\Users\Sithira_105661\Desktop\Projects\Learning\Redis\node_modules@node-redis\client\dist\lib\client\index.js:160:154) at Commander.BaseClass. [as set] (C:\Users\Sithira_105661\Desktop\Projects\Learning\Redis\node_modules@node-redis\client\dist\lib\commander.js:8:29) at Object. (C:\Users\Sithira_105661\Desktop\Projects\Learning\Redis\redis.js:19:8) at Module._compile (node:internal/modules/cjs/loader:1101:14) at Object.Module._extensions..js (node:internal/modules/cjs/loader:1153:10) at Module.load (node:internal/modules/cjs/loader:981:32) at Function.Module._load (node:internal/modules/cjs/loader:822:12) at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12) at node:internal/main/run_main_module:17:47
Help me understand the issue. Thanks in advance.
Solution 1:[1]
finally found the solution. I used node-redis 3.0.0 rather than 4 and the code works fine. I do not know why it does not work in latest node-redis . If any of you guys are getting this issue use node-redis 3
Solution 2:[2]
I used node-redis 3.1.2 rather than 4 and the code works fine.
Solution 3:[3]
You are using a very old version of Redis, an abandoned project by Microsoft called OpenTech Redis.
I suggest you checkout Memurai. Memurai is an up-to-date native Windows port of Redis that derives from that project (see this commit).
Memurai is also available with a free Developer Edition.
Disclaimer: I work in Memurai.
Solution 4:[4]
Please check your ec2 redis connection
const client = redis.createClient({
url: "redis://username:password@ec2_endpoint:port",
});
Connection string format: redis[s]://[[username][:password]@][host][:port]
Solution 5:[5]
If you're using redis ^4.0.0, you can do this:
const { createClient } = require('redis');
const { REDIS_HOST_URL } = require('../config');
const client = createClient({ url: REDIS_HOST_URL });
(async () => {
await client.connect();
})();
client.on('connect', () => console.log('::> Redis Client Connected'));
client.on('error', (err) => console.log('<:: Redis Client Error', err));
You can read more on their documentation here.
Solution 6:[6]
I don't thing we should decrease the version from 4 to 3.
we can use -
const redis = require('redis');
const client = redis.createClient();
(async () => {
await client.connect();
})();
client.on('connect', () => console.log('Redis Client Connected'));
client.on('error', (err) => console.log('Redis Client Connection Error', err));
Solution 7:[7]
In version 4.0.1, we have to add .connect() to run redis.
They have migration guide
This is my code, but it seems to not work well.
async function connectRedis(){
try {
const redisURL = '<link-redis-provider>';
const client = createClient({
url: redisURL
});
await client.connect();
console.log('Cache is ready');
} catch (error) {
console.log('Connect to cache is failed')
}
}
module.exports = {connectRedis}
Solution 8:[8]
const redis = require('redis');
const client = redis.createClient({
host: '<hostname>',
port: <port>,
password: '<password>'
});
client.on('error', err => {
console.log('Error ' + err);
});
you can read detail at here https://docs.redis.com/latest/rs/references/client_references/client_nodejs/
Solution 9:[9]
Change to Version 3.1.2
- remove node_modules and package-lock
- open package.json
- edit redis to version 3.1.2 and save it
- run npm install
if you just want to install direct :
npm i [email protected]
Sources
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Source: Stack Overflow