Use Juno with Astro
Explore how to create a Juno project developed with Astro.
Table of contents
Quickstart
This guide provides quickstart instructions for integrating Juno in two scenarios: starting a new project and adding Juno to an existing Astro app.
Additionally, it covers how to develop against a production environment or locally.
Path A: Start a new project with a template
- Create a new project using the Juno quickstart CLI:
npm create juno@latest
Path B: Integrate Juno into an existing Astro app
- Add the Juno SDK:
Navigate to your existing app directory and install Juno SDK:
cd your-existing-app
npm i @junobuild/core
2. Configure Datastore
Production Path
To use production, set up a satellite and new collection:
- Create a new satellite in the Juno's console.
- After your project is ready, create a collection in your datastore, which we'll call
demo
, using the console.
Local Development Path
To develop with the local emulator, add a collection named demo
within the juno.dev.config.mjs
file.
import { defineDevConfig } from "@junobuild/config";
/** @type {import('@junobuild/config').JunoDevConfig} */
export default defineDevConfig(() => ({
satellite: {
collections: {
db: [
{
collection: "demo",
read: "managed",
write: "managed",
memory: "stable",
mutablePermissions: true
}
]
}
}
}));
- Once set, run the local emulator:
juno dev start
- If the Juno admin CLI (required for deployment, configuration, or to run the emulator) is not installed yet, run:
npm i -g @junobuild/cli
3. Insert data from your app
In index.astro
, initialize the library with the satellite ID you have created for production, or use jx5yt-yyaaa-aaaal-abzbq-cai
if you are developing locally with the emulator.
Add an insert
function to persist a document.
<!doctype html>
<html lang="en">
<body>
<main>
<button id="insert">Insert a document</button>
<p>Document persisted key: <output id="result"></output></p>
<script>
import { initSatellite, setDoc } from "@junobuild/core";
// Initialize Juno's satellite
document.addEventListener(
"DOMContentLoaded",
async () => {
await initSatellite();
},
{ once: true }
);
// Insert a document in Juno's datastore
const insert = async () => {
const doc = await setDoc({
collection: "demo",
doc: {
key: `my-key-${new Date().getTime()}`,
data: {
hello: "world"
}
}
});
const result = document.querySelector("#result");
if (result !== null) {
result.textContent = doc.key;
}
};
document
.querySelector("#insert")
?.addEventListener("click", insert, { passive: true });
</script>
</main>
</body>
</html>
5. Start the app
Start the app, go to http://localhost:4321/ in a browser, click "Insert a document," and you should see the data successfully persisted in your satellite on the blockchain.
Hosting
If you're looking to deploy your existing app or website developed with Astro and Juno, this guide is for you.
1. Set up a satellite
If you haven't created a satellite yet, go ahead and create a new one in the Juno's console.
2. Install Juno CLI and log in
Install the Juno command line interface by executing the following command in your terminal:
npm i -g @junobuild/cli
After the CLI is ready, log in to your satellite from your terminal to authenticate your device.
juno login
3. Deploy
Build your website:
npm run build
Deploy your project by running the following command from your project’s root folder:
juno deploy
When prompted to provide the name or path of the folder containing your built dapp files, answer dist
.
4. Open
Open your browser and you should see your deployed app or website.
juno open