私有仓库依赖项安装，但“找不到模块”

Question

I have a project that requires a private repo as a dependency. So, projectA has this included in the package.json as "projectB": "user/repo" . This installs just fine, and is listed in projectA node_modules. The problem is, that node throws and error where I require the functions of the dependency. The error being that "Cannot find module projectB" . As mentioned, projectB is listed in node_modules. Here is the structure of projectB:

.
├── README.md
├── file1.js
├── file2.js
├── file3.js
├── file4.js
└── package.json

It also has its own node_modules, but I've left that out. Now, here is what file1.js might look like:

function getResult (a, b) {
  return a + b;
}

module.exports = { getResult }

And here is what projectA looks like:

var calculate = require('projectB').file1.getResult; // I've tried this in several other ways too

Calling calculate results in the "Cannot find module error" . Have I done something fundamentally wrong in setting up for using a private repo as dependency and/or requiring it wrong?

Update projectB package.json

{
  "name": "projectB",
  "version": "1.0.0",
  "description": "Backend utility functions",
  "scripts": {
    "test": "mocha"
  },
  "repository": {
    "type": "git",
    "url": "git+https://github.com/user/repo.git"
  },
  "author": "Me",
  "license": "ISC",
  "bugs": {
    "url": "https://github.com//user/repo/issues"
  },
  "homepage": "https://github.com//user/repo#readme",
  "dependencies": {
    "lodash": "^4.17.4",
    "mongodb": "^2.2.25",
    "redis": "^2.7.1",
    "winston": "^2.3.1"
  }
}

Answer 1

projectB needs to be updated to set an appropriate main , but by default this will be index.js . You could do something like the following:

// projectB/index.js
exports.file1 = require("./file1");
exports.file2 = require("./file2");
exports.file3 = require("./file3");
exports.file4 = require("./file4");

It's actually a pretty common pattern to have an index.js that does nothing but export from library files.