@zkp2p/reclaim-witness-sdk
Version:
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38 lines • 2.28 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.makeWebSocket = makeWebSocket;
exports.promisifySend = promisifySend;
const config_1 = require("../config");
const env_1 = require("../utils/env");
/**
* Default WebSocket implementation, uses `ws` package
* for Node.js and the native WebSocket for the browser & other
* environments.
*/
function makeWebSocket(url) {
if ((0, env_1.detectEnvironment)() === 'node') {
const ws = require('ws');
return promisifySend(new ws.WebSocket(url, { maxPayload: config_1.MAX_PAYLOAD_SIZE }));
}
return new WebSocket(url);
}
/**
* Adds the "sendPromise" fn to the given WebSocket instance,
* if not already present.
*/
function promisifySend(ws) {
if (ws.sendPromise) {
return ws;
}
ws.sendPromise = (data) => (new Promise((resolve, reject) => {
ws.send(data, err => {
if (err) {
reject(err);
return;
}
resolve();
});
}));
return ws;
}
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