Require for a relative path across modules

Question

I have project

A

that has a

config.json

file in its root. The project has a dependency on external module B, calling

B.setConfig('./config.json')

.

While inside

B.setConfig(path)

, if I call

fs.existsSync(path)

, it says Ok, file exists, but calling

require(path)

fails with

Cannot find module "./config.json"

.

Is it possible to adjust the relative path while inside module

B

to make

require

work?

I would prefer not to call

setConfig

with the full path, as it makes things awkward.

Answer 1

I found it, eventually, that if we want to take a relative path from module A (call it remotePath), and use it within require in module B, then to get the full path inside module B we can use the following:

var path = require('path');
var fullPath = path.join(path.dirname(process.argv[1]), remotePath);
var moduleInsideA = require(localPath); // this now works

process.argv[1] gives us the module A start-up file, from which we take the directory path, and then join it with the remote relative path, which then gives us the full path.

Require for a relative path across modules

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