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Core Server

Sheetbase core module for backend app.

Git repo: https://github.com/sheetbase/server/

Getting started

Install: npm install --save @sheetbase/server

Usage:

import { sheetbase } from '@sheetbase/server';

const Sheetbase = sheetbase({ /* configs */ });

Sheetbase.Router.get('/', (req, res) => {
  return res.send('Hello!');
});

Configs

Sheetbase app configurations.

allowMethodsWhenDoGet

• Type: boolean
• Default: false

Allows POST, PUT, … when do GET method, useful for testing in browser without re-deploy the web app.

views

• Type: string
• Default: ''

Views folder, where to put view templating file. Examples: views, public/views

disabledRoutes

• Type: string[]
• Default: []

List of disabled routes, format: method:endpoint. Examples: [ 'GET:/', 'POST:/me' ]

routingErrors

• Type: RoutingErrors
• Default: {}

List of routing errors, by codes, when do res.error(code), the router will show the coresponding error to the client.

Examples: { foo: 'The Foo error.' }. Then: res.error('foo'), the result will be:

{
  "error": true,
  "status": 400,
  "code": "foo",
  "message": "The Foo error."
}

Routing

Sheetbase provide a routing system like ExpressJS.

The router supports these methods: GET, POST, PUT, PATCH, DELETE. But only GET and POST is real HTTP methods, others are just play as a way to organize the app.

router.get('/', ...), accepts a GET request to ...?e=/

router.post('/', ...), accepts a POST request to ...?e=/

router.put('/', ...), accepts a POST request to ...?e=/&method=PUT

router.patch('/', ...), accepts a POST request to ...?e=/&method=PATCH

router.delete('/', ...), accepts a POST request to ...?e=/&method=DELETE

router.all('/', ...), accepts all request to ...?e=/

Basic use

router.get("/", (req, res) => {
  return res.send("Hello, world!");
});

Request

{
  query: Object;
  params: Object; // same as query
  body: Object;
}

Response

• send: return string as html or object as json.
• html: return html page.
• json: return json data.
• render: render html template, supports native GAS template, Handlebars and Ejs.
• success: return json data in form of a ResponseSuccess.
• error: return json data in form of a ResponseError.

Routing errors

Use setErrors to resgister your app routing errors. So that you can just do res.error(code) later.

// set errors
router.setErrors({
  error1: "Error 1",
  error2: { status: 500, message: "Error 2" }
});

// later, in a route
return res.error("error1");

With middlewares

For a certain route.

const Middleware = (req, res, next) => {
  return next();
};

router.get("/", Middleware, (req, res) => {
  return res.send("Final!");
});

For all routes.

router.use((req, res, next) => {
  return next();
});

Middleware data

Want to send data downstream.

return next({ foo: "bar" });

Render HTML template

To render HTML template with Handlebars or Ejs.

Place your template files with the coresponding extensions somewhere in the project, may be views folder. Remmber to set it in configs.

For Handlebars, file extension would be .hbs.html, for Ejs it is ejs.html;

Add the vendor js to your app, before main app code. With app-scripts, the build script would be sheetbase-app-scripts build --vendor <path to js file>