ioredis v5 typescript error

Hi, I’m using ioredis, upstash and I’ve updated to latest version. My typescript is flagging the instance line with an error: No overload matches this call.

import Redis from 'ioredis';
const redis = new Redis(process.env.REDIS_CONNECTION_STRING);
export default redis;

where REDIS_CONNECTION_STRING is following the example on upstash and rediss://:[e-mail]:PORT

I know this is probably an issue with upstash, but can I update my instance to

import Redis from 'ioredis';
const redis = new Redis(PORT, process.env.REDIS_CONNECTION_STRING_WITHOUT_PORT);
export default redis;

Is this the newest way?

[luin]

It has to be in uppercase, which is EX. There is a migration guide on the README that mentions this.

[luin]

process.env.REDIS_CONNECTION_STRING may be undefined, which will make the statement look like:

const redis = new Redis(undefined)

And there is no overload for this.

import Redis from "ioredis";

if (!process.env.REDIS_CONNECTION_STRING) {
  throw new Error("Missing REDIS_CONNECTION_STRING");
}
const redis = new Redis(process.env.REDIS_CONNECTION_STRING);

export default redis;

Adding an assert fixes the issue.

Having said that seems we can add the support for new Redis(undefined) to make everything default. WDYT?