var os = require('os');
var ifaces = os.networkInterfaces();
var lib = {};
lib.networkInterfaces = function () {
return os.networkInterfaces();
};
Above code has to return networkInterfaces but it through error "os.networkInterfaces is not a function", above code is inside a node module that i have installed in my angular project
{
"name": "#braj1996/tiny",
"version": "1.0.1",
"main": "index.js",
"dependencies": {
"os":"0.1.1"
}
}
And this is the package.json file detail inside the node module
ngOnInit() {
console.log(TinyJS.networkInterfaces());
}
And this is code that i used in my component.ts file to get the output
NOTE:- The above node module is my custom node module i build it and packaged it.But i don't get it what is wrong in my packaging.
Related
gulpfile.js
'use strict';
const gulp = require("gulp");
const imagemin = require("gulp-imagemin");
const webp = require("imagemin-webp");
const extReplace = require("gulp-ext-replace");
gulp.task("exportWebP", function() {
let src = "artists/**/*.jpg"; // Where your PNGs are coming from.
let dest = "dist/images"; // Where your WebPs are going.
return gulp.src(src)
.pipe(imagemin([
webp({
quality: 75
})
]))
.pipe(extReplace(".webp"))
.pipe(gulp.dest(dest));
});
package.json
{
"type": "module",
"main": "gulpfile.js",
"dependencies": {
"gulp-ext-replace": "^0.3.0",
"gulp-imagemin": "^8.0.0",
"imagemin-webp": "^7.0.0"
},
"devDependencies": {
"gulp": "^4.0.2"
}
}
here i run gulp js file it show the error
Error [ERR_REQUIRE_ESM]: require() of ES Module index.js from gulpfile.js not supported.
Instead change the require of index.js in gulpfile.js to a dynamic import() which is available in all CommonJS modules.
at Object. (gulpfile.js:3:18)
at async Promise.all (index 0) {
code: 'ERR_REQUIRE_ESM'
}
how to solve this problem.
Many packages moved to esm modules and can no longer be imported using require
Change require to import
import gulp from "gulp";
import imagemin from "gulp-imagemin";
import webp from "imagemin-webp";
import extReplace from "gulp-ext-replace";
I want to realize cloud functions, I do it on vscode. I think I use all that is necessary to realize the cloud function.
To test this one I installed # google-cloud / storage and it works perfectly on my machine, however when I compress in zip to import it into GCP at deployment it gives me an error:
(Build failed: function.js does not exist; Error ID: 7485c5b6)
While I clearly indicate the entry point of my exports.backup function that I indicate in the entry point in GCP.
Here is the code I'm trying to run - something must be missing but I can't figure it out.
package.json:
{
"name": "export-mysql",
"version": "1.0.0",
"description": "create backup database production",
"main": "index.js",
"scripts": {
"backup": "functions-framework --target=backup"
},
"author": "",
"license": "ISC",
"dependencies": {
"chalk": "^4.1.2",
"dayjs": "^1.10.7",
"dotenv": "^10.0.0",
"googleapis": "^92.0.0",
"#google-cloud/functions-framework": "^2.1.0"
}
}
code:
const { google } = require("googleapis");
const sqlAdmin = google.sqladmin("v1beta4");
const dayjs = require("dayjs");
const chalk = require("chalk");
const dotenv = require("dotenv");
const log = console.log;
const error = console.error;
dotenv.config({ path: "./config/.env" });
let = respo = "";
authorize(function (authClient) {
const date = dayjs(Date.now()).format("YYYYMMDDHHmm");
var request = {
project: "project",
instance: "database-prod",
resource: {
exportContext: {
databases: ["database"],
fileType: "SQL",
kind: "sql#exportContext",
uri: `gs://backup-database-pop/backup-prod-${date}.gz`,
},
},
auth: authClient,
};
sqlAdmin.instances.export(request, function (err, response) {
if (err) {
error(chalk.yellow.bold(`Status: ${err.code}`));
log(chalk.red.bold(`Message: ${err.message}`));
return;
}
// TODO: Change code below to process the `response` object:
// log(chalk.yellow.bold(`Status: ${response.status}`));
log(chalk.greenBright.bold(`Database Exporter dans le bucket -> backup-database-pop fichier: backup-prod-${date}.sql`));
respo = `Database Exporter dans le bucket -> backup-database-pop fichier: backup-prod-${date}.sql`;
return respo;
// log.log(JSON.stringify(response, null, 2));
});
});
function authorize(callback) {
google.auth
.getClient({
scopes: ["https://www.googleapis.com/auth/cloud-platform"],
})
.then((client) => {
callback(client);
})
.catch((err) => {
error(chalk.red.bold("authentication failed: ", err));
});
}
exports.backup = (req, res) => {
res.end();
log(respo);
log("Function complete!");
};
And here is the structure of the folder that is zipped:
functionFolder
folder -> config/.env
index.js
package.json
package-lock.json
authorize.json
Here is the solution you have to select the files and compress them and not compress the folder
EDIT:
As per the comment on the answer below: removing "type": "module" from package.json, which as I understand it is what makes Node understand 'import' and 'export' statements, and reverting everything to 'require' and 'module.exports' solved the issue.
Is there a way to keep 'import' and 'export' and still make Mocha work?
I have a very simple Node file that I'm trying to test with Mocha/Chai. The actual code is trivial, this is just to learn a bit about Mocha and how to use it. But when I run the Mocha test, I get the error ERROR: ReferenceError: require is not defined
`
I did some googling for people experiencing the same problem but the examples that I came up with were when they were running the test in the browser (see, for example, Mocha, "require is not defined" when test in browser).
The file I want to test, index.js
const argv = require('minimist')(process.argv.slice(2));
const digitTester = /\d/g;
const capTester = /[A-Z]/g;
const dict = {
length:10,
must_have_numbers: true,
must_have_caps: true
}
export default function passwordCheck(password) {
if (!password) return false;
if (typeof password !== "string") return false;
if (password.length < dict.length) return false; // assumes that 10 is a MINIMUM length
if (dict.must_have_numbers && !digitTester.test(password)) return false;
return !(dict.must_have_caps && !capTester.test(password));
}
if (argv._.length) {
console.log(passwordCheck(argv._[0]))
}
/**
* alternate version to check a lot of passwords:
*
* if (argv._.length) {
* for (const pwd of argv_) console.log(passwordCheck(pwd)
*}
*
*/
the mocha file, test/index.test.js
const chai = require('chai')
const expect = chai.expect
const passwordCheck = require('../index.js')
const tooShort = "A2a"
const noCaps = "a2abcdefghijklmnop"
const noNumber = "Aabcdefghijklmnop"
const good = "A2abcdefghijklmnop"
describe('password checking', () => {
it('should return false for passwords less than length 10', () => {
expect(passwordCheck(tooShort)).to.be.false;
});
it('should return false for passwords without a capital letter', () => {
expect(passwordCheck(noCaps)).to.be.false;
});
it('should return false for passwords without a number', () => {
expect(passwordCheck(noNumber)).to.be.false;
});
it('should return true for passwords that match criteria', () => {
expect(passwordCheck(good)).to.be.true;
});
});
and package.json
{
"name": "codetest",
"version": "1.0.0",
"main": "index.js",
"type": "module",
"scripts": {
"test": "mocha"
},
"keywords": [],
"author": "",
"license": "ISC",
"description": "",
"dependencies": {
"#types/minimist": "^1.2.1",
"#types/node": "^14.14.20",
"chai": "^4.2.0",
"minimist": "^1.2.5",
"mocha": "^8.2.1"
}
}
and the error message is
✖ ERROR: ReferenceError: require is not defined
at file:///Users/r/Documents/Projects/sandbox/pwd_checker/index.js:2:14
at ModuleJob.run (node:internal/modules/esm/module_job:152:23)
at async Loader.import (node:internal/modules/esm/loader:166:24)
at async exports.handleRequires (/Users/r/Documents/Projects/sandbox/pwd_checker/node_modules/mocha/lib/cli/run-helpers.js:94:28)
at async /Users/r/Documents/Projects/sandbox/pwd_checker/node_modules/mocha/lib/cli/run.js:341:25
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Node 15.
Remove this line - "type": "module" from package.json and check whether it’s working or not.
Prepend your tests with the following:
import { createRequire } from 'module';
const require = createRequire(import.meta.url);
This is because you cannot require from an ESM module; for more info please see this comment on a nodejs issue.
Documentation: https://nodejs.org/api/esm.html#differences-between-es-modules-and-commonjs
I have lots of global objects and say a function which is to be tested but when I run npm test i get
at Object. (index.js:2:1)
at Object. (index.test.js:1:1)
this error
this error points at the object "." of gblob.aobj={};
for simplicity sake i have created a index.js and index.test.js file ,im new to jest.js
note: im working on SPA: single page application where this variable is created in another js
index.js
gblob.aobj={};
function sum(a, b) {
return a + b;
}
module.exports = sum;
"""
"""
index.test.js
const sum = require('./index');
test('adds 1 + 2 to equal 3', () => {
expect(a.hy()).toBe(3);
});
"""
"""
package.json if i need to add something here
{
"name": "my-app",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "jest"
},
" author": "",
"license": "ISC",
"devDependencies": {
"jest": "^24.7.1"
}
}
"""
If I understand your question correctly you are saying your test is failing because the global gblob doesn't exist when index.js runs.
You can fix that by creating a global gblob using the Node's global.
If you create global.gblob at the beginning of your test then it will be available when your code runs:
index.test.js
global.gblob = {}; // <= create the global "gblob"
const sum = require('./index'); // <= now require index.js
test('adds 1 + 2 to equal 3', () => {
// ...
});
OS: Windows 10
Node version: 0.10.36
Mocha global version: 1.21.4
I'm attempting to use mocha to unit-test my code, but a local variable inside the code I'm trying to test is persisting between tests, causing problems.
When I look inside require.cache, between tests, I don't see my module in there. It is my understanding that I should be clearing the cache if I want to reset this module between tests.
I made a small node project to demonstrate this issue:
package.js:
{
"name": "cache-test",
"version": "0.0.1",
"dependencies": {
"lodash": "4.5.0"
},
"devDependencies": {
"chai": "1.9.2",
"mocha": "1.21.4",
"mockery": "1.4.0",
"sinon": "1.10.3",
"app-root-path":"*"
}
}
module.js:
var foo = "default value";
exports.init = function(){
foo = 'init';
}
exports.returnFoo = function(){
return foo;
}
test/test-module.js
var chai = require("chai"),
expect = chai.expect,
mockery = require("mockery"),
appRoot = require('app-root-path');
var module;
describe("module", function () {
before(function () {
mockery.enable({ useCleanCache: true });
});
beforeEach(function () {
mockery.registerAllowable(appRoot + "/module", true);
module = require(appRoot + "/module");
});
afterEach(function () {
console.log('deleting', require.cache[require.resolve(appRoot + "/module")]);
delete require.cache[require.resolve(appRoot + "/module")];
module = null;
mockery.deregisterAll();
});
after(function () {
mockery.disable();
});
describe("test",function(){
it("foo should be 'init' after running init()",function(){
module.init();
console.log('foo is ',module.returnFoo());
expect(module.returnFoo()).to.equal('init');
});
it("foo should be 'default value' if init() is not run",function(){
console.log('foo is ',module.returnFoo());
expect(module.returnFoo()).to.equal("default value");
});
});
});
running mocha prints
module
test
foo is init
√ foo should be 'init' after running init()
deleting undefined
foo is init
1 failing
Oh, I needed to add
mockery.resetCache() to my afterEach function. That solved it.
It seems like the useCleanCache option, and deleting the entry from require.cache aren't compatible with each-other, as the former keeps it from appearing in the latter.
So it's either:
Don't use useCleanCache
Delete it "manually" from require.cache
OR
Use useCleanCache
Use resetCache()
but don't attempt to mix and match.