-
To install all modules listed as dependencies in package.json file, run
npm install
-
To run the project locally, execute the following commands in separated windows of your terminal:
npm run dev
and
npm run dev:tailwindcss
The two directories in the root of the project are src
and static
.
The src directory contains the entry points for your app — client.js
, server.js
, template.html
file and a routes
directory.
There are two kinds of routes — pages, and server routes.
Pages are Svelte components written in .svelte
files. When a user first visits the application, they will be served a server-rendered version of the route in question, plus some JavaScript that 'hydrates' the page and initialises a client-side router. From that point forward, navigating to other pages is handled entirely on the client for a fast, app-like feel. (Sapper will preload and cache the code for these subsequent pages, so that navigation is instantaneous.)
Server routes are modules written in .js
files, that export functions corresponding to HTTP methods. Each function receives Express request
and response
objects as arguments, plus a next
function. This is useful for creating a JSON API, for example.
There are three simple rules for naming the files that define your routes:
- A file called
src/routes/newsletter.svelte
corresponds to the/newsletter
route. - A file called
src/routes/events/[slug].svelte
corresponds to the/events/:slug
route, in which caseparams.slug
is available to the route - The file
src/routes/index.svelte
(orsrc/routes/index.js
) corresponds to the root of your app.src/routes/about/index.svelte
is treated the same assrc/routes/about.svelte
. - Files and directories with a leading underscore do not create routes. This allows you to colocate helper modules and components with the routes that depend on them — for example you could have a file called
src/routes/_helpers/datetime.js
and it would not create a/_helpers/datetime
route.
Images added to src/node_modules/images
can be imported into your code using import 'images/<filename>'
. They will be given a dynamically generated filename containing a hash, allowing for efficient caching and serving the images on a CDN.
This directory is managed by Sapper and generated when building. It contains all the code you import from @sapper
modules.
The static directory contains static assets that should be served publicly. Files in this directory will be available directly under the root URL, e.g. an image.jpg
will be available as /image.jpg
.
The default service-worker.js will preload and cache these files, by retrieving a list of files
from the generated manifest:
import { files } from '@sapper/service-worker';
If you have static files you do not want to cache, you should exclude them from this list after importing it (and before passing it to cache.addAll
).
Static files are served using sirv.