ts-node inside AWS Lambda cannot resolve dependencies in /opt/nodejs/node_modules

[SleepyDeb]

Hi,

Using ts-node I'm trying to use Typescript directly inside lambda function on AWS, to do this I'm using this sample code:

require('ts-node/register');
console.log('Register!');

const { main } = require('./src/test.ts');

exports.handler = async function handler() {
  console.log('Starting...');
  await main();
  console.log('Done!');
};

The problem is that in my lambda the node_modules directory is placed in a layer /opt/nodejs/node_modules

So what happens is that ts-node doesn't find libraries on the imported sources giving errors such:

src/test.ts(2,21): error TS2307: Cannot find module '@aws-sdk/client-s3' or its corresponding type declarations.

I'm trying to override the configuration of ts-node using this code, but still no luck.

var tsNode = require('ts-node');

var service = tsNode.register({
    lazy: true,
    files: false,
    compilerOptions: {
        "target": "ES2019",
        "module": "commonjs",
        "lib": [
            "DOM",
            "ES6",
            "ES2019",
            "ES2020"
        ],
        "declaration": true,
        "strict": false,
        "noImplicitAny": false,
        "strictNullChecks": true,
        "noImplicitThis": true,
        "alwaysStrict": true,
        "noUnusedLocals": false,
        "noUnusedParameters": false,
        "noImplicitReturns": true,
        "noFallthroughCasesInSwitch": false,        
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true,
        "inlineSourceMap": true,
        "inlineSources": true,
        "strictPropertyInitialization": true,
        "baseUrl": "/opt/nodejs/",
        "types": [ 
            "node",
            "aws-lambda" 
        ],
        "typeRoots": [
            "node_modules",
            "node_modules/@types",
        ]
    }
});

Thanks you in advance,
Regards