borduhh / serverless-sam-typescript-boilerplate Goto Github PK

Hi Nick,
amazing tutorial so far.

Yet, almost by the end, when I need to build a Api Function (npm run build:prod) with altered webpack.config.ts I'm getting an error

[webpack-cli] webpack.config.ts:42:14 - error TS2304: Cannot find name 'EventSource'.


42     Events?: EventSource;
                ~~~~~~~~~~~

NOTE: please note that I've picked all the latest devDependencies and here is the list:

    "devDependencies": {
        "@types/aws-lambda": "^8.10.64",
        "@types/jest": "^26.0.15",
        "@types/node": "^14.14.2",
        "@types/webpack": "^4.41.23",
        "@typescript-eslint/eslint-plugin": "^4.5.0",
        "@typescript-eslint/parser": "^4.5.0",
        "eslint": "^7.11.0",
        "eslint-config-prettier": "^6.14.0",
        "eslint-plugin-import": "^2.22.1",
        "eslint-plugin-prettier": "^3.1.4",
        "jest": "^26.6.0",
        "prettier": "^2.1.2",
        "ts-jest": "^26.4.1",
        "ts-loader": "^8.0.6",
        "ts-node": "^9.0.0",
        "typescript": "^4.0.3",
        "webpack": "^5.1.3",
        "webpack-cli": "^4.1.0",
        "yaml-cfn": "^0.2.3"
    }

If I look into ISamFunction interface in that webpack.config.js, all are "primitives" except that Events?: EventSource.
Can it be that it is referenced somewhere? Maybe you have some global npm module installed?

Hello man,
Thanks for the boilerplate.

Let's imagine a scenario where a function uses lodash, we would install lodash dependency in global layer so it can be reused without bloat the function up (many functions use it)
The problem is that functions can't reference the installed module and keep linting "module not found" when coding the function body.
The first workaround was to install lodash as dev dependency in the function folder so lint error stopped, however, when we build to deploy using webpack, the generated JS includes ALL de dev dependency in the function which makes it very heavy and the global layer unecessary.

How can we solve it?
Something about ignore devDependencies when compile?

I have spend many hours trying different solutions but with no luck. Your help would be appreciated.