Challenges with Typescript arise when modifying dependencies within a Firebase function, leading to compilation

Recently, I decided to update the dependencies of my Firebase functions project in order to utilize newer versions of firebase-functions and firebase-admin. However, this led to a requirement for more recent versions of TypeScript and tslint. After making these changes, here is the resulting package.json file:

{
  "name": "functions",
  "scripts": {
    "lint": "./node_modules/.bin/tslint -p tslint.json",
    "build": "./node_modules/.bin/tsc",
    "serve": "npm run build && firebase serve --only functions",
    "shell": "npm run build && firebase experimental:functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "main": "lib/index.js",
  "engines": {
    "node": "8"
  },
  // rest of the package.json content...

However, upon trying to deploy my updated Firebase functions, I encountered numerous Typescript compilation errors that left me confused. If anyone has insights on what these errors are or how to resolve them, please share your knowledge.

// Error message output example...
typescriptfirebasenpmgoogle-cloud-functions

Answer №1

After some troubleshooting, I managed to resolve the issue by including "typeRoots": ["node_modules/@types"] in the compilerOptions section of tsconfig.json.

The solution that worked for me can be found here

Answer №2

After encountering the problem, I found a solution by adding @types/node as a dev dependency in my project. This modification resolved the issue for me. Here is the updated version of my package.json file:

{
  "name": "functions",
  "scripts": {
    "lint": "./node_modules/.bin/tslint -p tslint.json",
    "build": "./node_modules/.bin/tsc",
    "serve": "npm run build && firebase serve --only functions",
    "shell": "npm run build && firebase experimental:functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "engines": {
    "node": "8"
  },
  "main": "lib/index.js",
  "dependencies": {
    "@types/jsonwebtoken": "^7.2.8",
    "axios": "^0.18.1",
    "body-parser": "^1.18.3",
    "express": "^4.16.3",
    "firebase-admin": "^8.5.0",
    "firebase-functions": "^3.2.0",
    "handlebars": "^4.1.2",
    "html-pdf": "^2.2.0",
    "js-sha256": "^0.9.0",
    "json2csv": "^4.1.2",
    "jsonwebtoken": "^8.3.0",
    "jwks-rsa": "^1.3.0",
    "moment": "^2.24.0",
    "pdfkit": "^0.9.1",
    "uuid": "^3.3.2",
    "validator": "^10.11.0"
  },
  "devDependencies": {
    "@types/node": "^12.7.5",
    "tslint": "~5.8.0",
    "typescript": "^3.6.3"
  },
  "private": true
}

Answer №3

If you encounter an error that references a file starting with node_modules and ending with .d.ts, it is likely related to TypeScript's lib check feature. This feature is meant to identify type conflicts between installed modules, but configuring it correctly can be challenging.

In my experience, I find it easier to simply disable the lib check, which also results in faster compile times.

//tsconfig.json
{
    "compilerOptions": {
        "skipLibCheck": true,
        ...
    }
}

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