How to pass Redis connection to module?

[Apple]

Hello,

Is Redis connection information available on globals? I want to pass that to a server connect extension/module

[JonL]

You need to require /app/config/config.js from your module.

Also:

Config.json not being parsed?

@patrick I need to set Redis based on environment variables. Would you be so king to make the config.json so it’s parsed same as the app/modules/connections/db.json files are? "redis": "{{$_ENV.REDIS_URL}}", "session": { "store": { "$type": "redis" } } } Or treat redis as a connection(it probably should be) and move it into the /app/modules/connections and refactor the db and redis config logic while keeping the config.json unparseable.

If you want to use environment variables you need to change core files and make sure you discard changes with GIT with every update.

lib/setup/redis.js

const config = require('./config');

if (config.redis) {
    const redis = require('redis');
    global.redisClient = redis.createClient(config.redis === true ? 'redis://redis' : process.env.REDIS_URL);
}

module.exports = global.redisClient;

This way I set redis to NO(unchecked) on the UI and load it from dotenv

[Apple]

Bummer about the core changes, looks the trio is very busy

With Redis checkbox unchecked, does it still store Express sessions on Redis? I’m guessing it won’t, because config.redis is false

[JonL]

It does. No problems there as it will read the global.redisClient data which was set above.

if (options.store.$type == 'redis') { // https://www.npmjs.com/package/connect-redis
        const RedisStore = require('connect-redis')(session);
        options.store = new RedisStore(Object.assign({
            client: global.redisClient
        }, options.store));
    }

Just make sure you have the right config in config.js

"session": {
        "store": {
            "$type": "redis",
            "ttl": 86400
        }
    }

If you deviate from core and use ENV variables you require dotenv and if not you require config.js