Node.js app not connect to docker redis container - node.js

Question

I connected with docker redis container.The redis working in the docker.If I execute the docker file with docker exec -it 96e199a8badf sh, I connected to redis server.
My node.js application like this.I use redis 4.1.0 version.
I don't know, what's going on.How can I fix this?
docker-compose.yml
version: '3'
services:
app:
container_name: delivery-app
build:
dockerfile: 'Dockerfile'
context: .
ports:
- "3000:3000"
volumes:
- .:/app,
- '/app/node_modules'
networks:
- redis
redis:
image: "redis"
ports:
- "6379:6379"
networks:
- redis
networks:
redis:
driver: bridge
Dockerfile
FROM node:16-alpine
WORKDIR /app
COPY package.json .
RUN npm install
COPY . ./
EXPOSE 3000
CMD ["node","server.js"]
code:
const redisClient = redis.createClient({
socket: {
port: 6379,
host: "redis"
}
});
await redisClient.connect();
redisClient.on('connect',function(){
return res.status(200).json({
success: true
})
}).on('error',function(error){
return res.status(400).json({
success: false
})
});
package.json
"redis": "^4.1.0"

Answer 1

I had the same issue and solved it by passing the host parameter as a socket object in createClient like this
{
socket: {
host: "redis"
}
}
This seems to be new because before you didn't have to use the socket object
Here's the documentation for node-redis createClient
https://github.com/redis/node-redis/blob/HEAD/docs/client-configuration.md