"This error message states that the use of an import statement outside a module is not allowed

After searching for a solution without any luck, I decided to start a new discussion on this topic.

Currently, I am working on azure functions using Typescript and encountering the following error:

import { Entity, BaseEntity, PrimaryColumn, Column, ManyToOne } from "typeorm";
SyntaxError: Cannot use import statement outside a module

Here is my tsconfig file:

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "es6",
    "outDir": "dist",
    "rootDir": ".",
    "sourceMap": true,
    "esModuleInterop": true,
    "strict": true,
    "lib": [
      "esnext"
    ],
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "moduleResolution": "Node",
    "allowSyntheticDefaultImports": true
  }
}

If anyone has any suggestions on how to resolve this issue, please let me know. Thank you!

typescriptazureazure-functions

Answer №1

Here are two steps you can take to fix the syntax error:

  1. Update all .js files to .cjs
  2. Add "type" : "Module" in your package.json file

Be sure to also explore relevant threads on Stack Overflow and helpful documentation.

Answer №2

There are two key areas to review and synchronize:

  1. tsconfig.json
  2. package.json

tsconfig.json dictates the output of the TypeScript compiler and how it handles module resolution at compile time. Crucial settings in tsconfig include:

In contrast, package.json influences Node.js' module resolution at runtime. An important factor is the type option, with commonjs being implied if not specified.

It's crucial that both align correctly.

If you prefer a traditional approach, opt for:

//in package.json
"type": "commonjs",

//in tsconfig.json
"module": "CommonJS",
"moduleResolution": "node",

For a more forward-looking, readable, and CommonJs-compatible output with ES modules, use the following configuration:

//in package.json
"type": "module",

//in tsconfig.json
"module": "NodeNext",
"moduleResolution": "nodenext",

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