Attempting to deploy my initial Google Cloud Function, encountering an error message indicating that Express is not detected

Currently in the process of deploying my first Google Cloud function, the code for which can be found here:

https://github.com/rldaulton/GCF-Stripe/blob/master/Charge%20Customer/index.js

The code starts with the following line:

var app = require('express')();
var http = require('http').Server(app);

However, an error occurs when attempting to deploy with Node6 and execute the function named chargeCustomer:

Function failed on loading user code. Error message: Code in file index.js can't be loaded.
Did you list all required modules in the package.json dependencies?
Detailed stack trace: Error: Cannot find module 'express'
    at Function.Module._resolveFilename (module.js:476:15)
    at Function.Module._load (module.js:424:25)
    at Module.require (module.js:504:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/user_code/index.js:1:91)
    at Module._compile (module.js:577:32)
    at Object.Module._extensions..js (module.js:586:10)
    at Module.load (module.js:494:32)
    at tryModuleLoad (module.js:453:12)
    at Function.Module._load (module.js:445:3)

It appears that the express module is missing. How can I add this?

javascriptexpressgoogle-cloud-functions

Answer №1

When setting up a Node.js function with Cloud Functions, it is your responsibility to provide a properly structured package.json file that lists the dependencies required by your function. These dependencies should align with the requires() statements in your code. For instance, if your code relies on express, your package.json file must declare this dependency, like so:

{
  "dependencies": {
    "express": "^4.16.4"
  }
}

For further information on specifying dependencies for Node.js in Cloud Functions, you can refer to this documentation provided by Google.

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