v1 Scripts

CodeYourFuture version

Various scripts are provided in the package file, but many are helpers for other scripts; here are the ones you'll commonly use:

• dev: starts the frontend and backend in dev mode, with file watching (note that the backend runs on port 3100, and the frontend is proxied to it - see v1 Architecture#Development Mode).
• lint: runs ESLint against all the JavaScript in the project.
• serve: builds and starts the app in production mode (see v1 Architecture#Production Mode) locally.

Note that npm [run] start is designed for production use (in e.g. Heroku), so will likely not do what you expect if you run it locally; it may run older code, or you may see an error like:

$ npm start

> [email protected] start /path/to/starter-kit
> node dist/server.js

internal/modules/cjs/loader.js:797
    throw err;
    ^

Error: Cannot find module '/path/to/starter-kit/dist/server.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:794:15)
    at Function.Module._load (internal/modules/cjs/loader.js:687:27)
    at Function.Module.runMain (internal/modules/cjs/loader.js:1025:10)
    at internal/main/run_main_module.js:17:11 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] start: `node dist/server.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /path/to/.npm/_logs/2019-12-27T17_38_04_214Z-debug.log

If you try to directly run the raw source code instead, e.g. node server/server.js, you'll get a syntax error on the use of ES6 modules:

$ node server/server.js
(node:53797) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
/Users/jsharpe/workspace/starter-kit/server/server.js:1
import http from "http";
^^^^^^

SyntaxError: Cannot use import statement outside a module
    at wrapSafe (internal/modules/cjs/loader.js:1053:16)
    at Module._compile (internal/modules/cjs/loader.js:1101:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1157:10)
    at Module.load (internal/modules/cjs/loader.js:985:32)
    at Function.Module._load (internal/modules/cjs/loader.js:878:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47

The code needs to be built before being started - that happens automatically in e.g. Heroku, and is what npm run serve does for you (see v1 Architecture#Production Mode).

Full version

The full version of the starter kit adds the following scripts (mostly related to testing):

• e2e: builds and starts the app in production mode and runs the Cypress tests against it.
• e2e:dev: builds and starts the app in dev mode and runs the Cypress tests against it.
• e2e:local: opens Cypress on the desktop, instead of running it in the background. Note doesn't start the app.
• ship: runs lint, then test, then e2e; ideal before a git push.
• test: runs the Jest unit and integration tests.
• test:watch: runs the unit and integration tests in watch mode.