Janus browser client

Browser client for the Fluence network based on the js-libp2p.

How to build

With npm installed building could be done as follows:

``bash
npm install
`

Example

Shows how to register and call new service in Fluence network

`typescript
interface Server {
peer: string,
ip: string,
port: number
}

function server(peer: string, ip: string, port: number): Server {
return {
peer: peer,
ip: ip,
port: port
}
}

const servers = [
// /ip4/134.209.186.43/tcp/7001 /ip4/134.209.186.43/tcp/9001/ws QmVL33cyaaGLWHkw5ZwC7WFiq1QATHrBsuJeZ2Zky7nDpz
// /ip4/134.209.186.43/tcp/7002 /ip4/134.209.186.43/tcp/9002/ws QmVzDnaPYN12QAYLDbGzvMgso7gbRD9FQqRvGZBfeKDSqW
// /ip4/134.209.186.43/tcp/7003 /ip4/134.209.186.43/tcp/9003/ws QmSTTTbAu6fa5aT8MjWN922Y8As29KTqBwvvp7CyrC2S6D
// /ip4/134.209.186.43/tcp/7004 /ip4/134.209.186.43/tcp/9004/ws QmUGQ2ikgcbJUVyaxBPDSWLNUMDo2hDvE9TdRNJY21Eqde
// /ip4/134.209.186.43/tcp/7005 /ip4/134.209.186.43/tcp/9005/ws Qmdqrm4iHuHPzgeTkWxC8KRj1voWzKDq8MUG115uH2WVSs
server("QmVL33cyaaGLWHkw5ZwC7WFiq1QATHrBsuJeZ2Zky7nDpz", "134.209.186.43", 9001),
server("QmVzDnaPYN12QAYLDbGzvMgso7gbRD9FQqRvGZBfeKDSqW", "134.209.186.43", 9002),
server("QmSTTTbAu6fa5aT8MjWN922Y8As29KTqBwvvp7CyrC2S6D", "134.209.186.43", 9003)
];

// Shows how to register and call new service in Fluence network
export async function testCalculator() {
let key1 = await Janus.generatePeerId();
let key2 = await Janus.generatePeerId();

// connect to two different nodes
let cl1 = await Janus.connect("QmSTTTbAu6fa5aT8MjWN922Y8As29KTqBwvvp7CyrC2S6D", "134.209.186.43", 9003, key1);
let cl2 = await Janus.connect("QmVzDnaPYN12QAYLDbGzvMgso7gbRD9FQqRvGZBfeKDSqW", "134.209.186.43", 9002, key2);

// service name that we will register with one connection and call with another
let serviceId = "sum-calculator-" + genUUID();

// register service that will add two numbers and send a response with calculation result
await cl1.registerService(serviceId, async (req) => {
console.log("message received");
console.log(req);

console.log("send response");

let message = {msgId: req.arguments.msgId, result: req.arguments.one + req.arguments.two};

await cl1.sendMessage(req.reply_to, message);
});


// msgId is to identify response
let msgId = "calculate-it-for-me";

let req = {one: 12, two: 23, msgId: msgId};


let predicate: (args: any) => boolean | undefined = (args: any) => args.msgId && args.msgId === msgId;

// send call to sum-calculator service with two numbers
let response = await cl2.sendServiceCallWaitResponse(serviceId, req, predicate);

let result = response.result;
console.log(calculation result is: ${result});

await cl1.connect("QmVL33cyaaGLWHkw5ZwC7WFiq1QATHrBsuJeZ2Zky7nDpz", "134.209.186.43", 9001);

// send call to sum-calculator service with two numbers
await cl2.sendServiceCall(serviceId, req, "calculator request");

let response2 = await cl2.sendServiceCallWaitResponse(serviceId, req, predicate);

let result2 = await response2.result;
console.log(calculation result AFTER RECONNECT is: ${result2});
}
``