Cannot find module 'validator - node.js

Question

In node_modules I don't find the "validator" package, but I don't understand why it is not installed with an npm with the dockerfile.
It's my project.
DockerFiles
FROM node:latest
WORKDIR /app
ADD restapi/* /app/
RUN npm install -g nodemon && \
npm install -g
RUN npm install -g validator
EXPOSE 3000
CMD ["nodemon"]
package.json
"dependencies": {
"body-parser": "^1.18.3",
"cookie-parser": "^1.4.4",
"debug": "^4.1.1",
"express": "^4.16.4",
"firebase-admin": "^7.0.0",
"jade": "^1.11.0",
"kafka-node": "^4.0.2",
"mongoose": "^5.4.18",
"mongoose-float": "^1.0.3",
"morgan": "^1.9.1",
"bcryptjs": "^2.4.3",
"jsonwebtoken": "^8.1.0",
"validator": "^12.1.0"
}
docker-compose
version: "3"
services:
mongodb:
image: mongo:latest
container_name: mongo1
ports:
- 27017:27017
restapi:
build: .
image: restapi
container_name: restapi1
depends_on:
- mongodb
volumes:
- //c/Users/Halnap/restapi_project/restapi:/app
ports:
- 3000:3000
docker-compose return this error:
restapi1 | internal/modules/cjs/loader.js:957
restapi1 | throw err;
restapi1 | ^
restapi1 |
restapi1 | Error: Cannot find module 'validator'
restapi1 | Require stack:
restapi1 | - /app/models/users.js
restapi1 | - /app/database.js
restapi1 | - /app/index.js
restapi1 | at Function.Module._resolveFilename (internal/modules/cjs/loader.js:954:17)
restapi1 | at Function.Module._load (internal/modules/cjs/loader.js:847:27)
restapi1 | at Module.require (internal/modules/cjs/loader.js:1016:19)
restapi1 | at require (internal/modules/cjs/helpers.js:69:18)
restapi1 | at Object.<anonymous> (/app/models/users.js:5:19)
restapi1 | at Module._compile (internal/modules/cjs/loader.js:1121:30)
restapi1 | at Object.Module._extensions..js (internal/modules/cjs/loader.js:1160:10)
restapi1 | at Module.load (internal/modules/cjs/loader.js:976:32)
restapi1 | at Function.Module._load (internal/modules/cjs/loader.js:884:14)
restapi1 | at Module.require (internal/modules/cjs/loader.js:1016:19)
restapi1 | at require (internal/modules/cjs/helpers.js:69:18)
restapi1 | at Object.<anonymous> (/app/database.js:45:1)
restapi1 | at Module._compile (internal/modules/cjs/loader.js:1121:30)
restapi1 | at Object.Module._extensions..js (internal/modules/cjs/loader.js:1160:10)
restapi1 | at Module.load (internal/modules/cjs/loader.js:976:32)
restapi1 | at Function.Module._load (internal/modules/cjs/loader.js:884:14) {
restapi1 | code: 'MODULE_NOT_FOUND',
restapi1 | requireStack: [ '/app/models/users.js', '/app/database.js', '/app/index.js' ]
restapi1 | }
restapi1 | [nodemon] app crashed - waiting for file changes before starting...
maybe I should add validator in package-lock.json?
in package-lock.json missing validator and bcryptjs (which I removed from dockerfiles), why is it not added with npm?
In execution it is added according to the screen of the powershell + validator#12.1.0
added 1 package from 2 contributors in 0.739s

Answer 1

In your DockerFiles, the validator package is being installed globally, rather than in the current directory. This is seen here in this command: npm install -g validator. You can see that nodemon is also being installed globally and doesn't appear in the package.json list of dependencies either.
If you want to install this package locally, run npm i -S validator.

Answer 2

Just install the validator package locally, run npm i -S validator i got the same issue and it is solved with installing it locally.