tsconfig-paths safe for production?

Hi, is tsconfig-path safe to use in production?

And what about perfomance impact of runtime module resolution?

Do you have any insight on these topics?

Thank you for solving this annoying absolute path resolution problem!

[sriramr98]

Any insights on how to use tsconfig-paths with tsc when building the project? tsconfig-paths works well with node and ts-node but not with tsc

[cadesalaberry]

For the record, I ran into the same issue and ended up using the tsc-alias package to replace the alias names with their relative path in the outDir folder.

tsconfig.json

{
    "compilerOptions": {
        "module": "commonjs",
        "lib": [
            "ES6"
        ],
        "experimentalDecorators": true,
        "esModuleInterop": true,
        "allowSyntheticDefaultImports": true,
        "target": "es6",
        "noImplicitAny": true,
        "moduleResolution": "node",
        "sourceMap": true,
        "declaration": true,
        "composite": true,
        "rootDir": "./src",
        "outDir": "./dist",
        "baseUrl": "./src", // Make sure we can replace it by "dist" in the production code (with TS_NODE_BASEURL)
        "paths": {
            "@helpers/*": ["helpers/*"],
            "@middlewares/*": ["middlewares/*"],
            "@topics/*": ["topics/*"],
            "@app": ["app"]
        }
    },

    "ts-node": {
        "require": ["tsconfig-paths/register"]
    },

    "exclude": [
        "node_modules",
        "**/dist/*"
    ],

    "include": [
        "src/**/*",
    ],
}

package.json

{
  ...
  "main": "dist/index.js",
  "engines": {
    "node": "16"
  },
  "scripts": {
    "yarn": "yarn install --frozen-lockfile",
    "yarn:production": "yarn install --frozen-lockfile --production",
    "start:compiled": "TS_NODE_BASEURL=./dist node dist/index.js",
    "start:dev": "ts-node src",
    "build": "rm -rf ./dist && rm -f tsconfig.tsbuildinfo && npx tsc && tsc-alias -p tsconfig.json",
    "test": "jest"
  },
  "devDependencies": {
    ...
    "tsconfig-paths": "^3.9.0",
    "ts-jest": "^28.0.5",
    "ts-node": "^10.8.2",
    "typescript": "^4.7.4"
  },
  "dependencies": {
    ...
    "tsc-alias": "^1.7.0"
  }
}