Fluence JS Client

This is the Javascript client for the Fluence network. The main role of the JS client is to connect to the Fluence Network and allow you to integrate Aqua code into your application.

Installation

Adding the Fluence JS client for your web application is very easy.

Browser-based Apps

Add a script tag with the JS Client bundle to your index.html. The easiest way to do this is using a CDN (like JSDELIVR or UNPKG). The script is large, thus we highly recommend to use the async attribute.

Here is an example using the JSDELIVR CDN:
```
<head>
    <title>Cool App</title>
    <script
        src="https://cdn.jsdelivr.net/npm/@fluencelabs/js-client.web.standalone@0.13.3/dist/js-client.min.js"
        async
    ></script>
</head>
```
If you cannot or don't want to use a CDN, feel free to get the script directly from the npm package and host it yourself. You can find the script in the /dist directory of the package. (Note: this option means that developers understand what they are doing and know how to serve this file from their own web server.)

Install the following packages:

npm i @fluencelabs/js-client.api @fluencelabs/fluence-network-environment

Add the following lines at the beginning of your code:

import { Fluence } from "@fluencelabs/js-client.api";
import { randomKras } from '@fluencelabs/fluence-network-environment';

Fluence.connect(randomKras());

Node.js Apps

Install the following packages:

npm i @fluencelabs/js-client.api"@fluencelabs/js-client.node @fluencelabs/fluence-network-environment

Add the following lines at the beginning of your code:

import '@fluencelabs/js-client.node';
import { Fluence } from "@fluencelabs/js-client.api";
import { randomKras } from '@fluencelabs/fluence-network-environment';

Fluence.connect(randomKras());

Usage in an Application

Once you've added the client, you can compile Aqua and run it in your application. To compile Aqua, use Fluence CLI.

Install the package:
```
npm i -D "@fluencelabs/fluence-cli"
```
Add a directory in your project for Aqua code, e.g., _aqua.
Put *.aqua files in that directory.
Add a directory for compiled Aqua files inside you sources. For example, if your app source is located in the src directory, you can create src/_aqua.
To compile Aqua code once, run npx fluence aqua -i ./_aqua -o ./src/_aqua/. To watch the changes and to recompile on the fly, add the -w flag: npx fluence aqua -w -i ./_aqua -o ./src/_aqua/.

A hint: it might be a good idea to add these scripts to your package.json file. For example, you project structure could look like this:
```
 ┣ _aqua
 ┃ ┗ demo.aqua
 ┣ src
 ┃ ┣ _aqua
 ┃ ┃ ┗ demo.ts
 ┃ ┗ index.ts
 ┣ package-lock.json
 ┣ package.json
 ┗ tsconfig.json
```
Then, your package.json file should include the following lines:
```
{
  ...
  "scripts": {
    ...
    "aqua:compile": "fluence aqua -i ./aqua/ -o ./src/_aqua",
    "aqua:watch": "fluence aqua -w -i ./aqua/ -o ./src/_aqua"
  },
  ...
}
```

Now you can import and call Aqua code from your application like this:

import { getRelayTime } from "./_aqua/demo";

async function buttonClick() {
  const time = await getRelayTime();
  alert("relay time: " + time);
}

Development

To hack on the Fluence JS Client itself, please refer to the development page.

Documentation

The starting point for all documentation related to Fluence is fluence.dev. We also have an active YouTube channel.

Support

Please, file an issue if you find a bug. You can also contact us at Discord or Telegram. We will do our best to resolve the issue ASAP.

Contributing

Any interested person is welcome to contribute to the project. Please, make sure you read and follow some basic rules.

License

All software code is copyright (c) Fluence Labs, Inc. under the Apache-2.0 license.

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