Question

I have created an Express 2.x app using the CLI. So I have a routes directory and an index.js.
Now, in app.js, I have connected to Redis, and it works properly.

I call the function in the routes/index.js file from app.js here:

app.post('/signup', routes.myroute);

The myroute function contains code to get a key from Redis.

Now, I get the error that redis is not defined.
How do I pass the redis object into routes/index.js from the app.js?

Answer 1

Easiest Solution

You probably have a require() function that includes a redis lib in your app.js. Just take that line and add it to the top of your index.js file.

if you are using the node_redis module, simply include this:

var redis = require("redis"),
client = redis.createClient();

Alternative Approach

If you are looking to reuse the existing connection, try passing the client variable to the function in index.js:

app.js

app.post('/signup', routes.myroute(client));

index.js

exports.myroute = function(client) {
    // client can be used here
}