@expo/cli
Version:
79 lines (78 loc) • 2.67 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "evaluateJsFromCdpAsync", {
enumerable: true,
get: function() {
return evaluateJsFromCdpAsync;
}
});
function _ws() {
const data = require("ws");
_ws = function() {
return data;
};
return data;
}
const debug = require('debug')('expo:start:server:middleware:inspector:CdpClient');
function evaluateJsFromCdpAsync(webSocketDebuggerUrl, source, timeoutMs = 2000) {
const REQUEST_ID = 0;
let timeoutHandle;
return new Promise((resolve, reject)=>{
let settled = false;
const ws = new (_ws()).WebSocket(webSocketDebuggerUrl);
timeoutHandle = setTimeout(()=>{
debug(`[evaluateJsFromCdpAsync] Request timeout from ${webSocketDebuggerUrl}`);
reject(new Error('Request timeout'));
settled = true;
ws.close();
}, timeoutMs);
ws.on('open', ()=>{
ws.send(JSON.stringify({
id: REQUEST_ID,
method: 'Runtime.evaluate',
params: {
expression: source
}
}));
});
ws.on('error', (e)=>{
debug(`[evaluateJsFromCdpAsync] Failed to connect ${webSocketDebuggerUrl}`, e);
reject(e);
settled = true;
clearTimeout(timeoutHandle);
ws.close();
});
ws.on('close', ()=>{
if (!settled) {
reject(new Error('WebSocket closed before response was received.'));
clearTimeout(timeoutHandle);
}
});
ws.on('message', (data)=>{
debug(`[evaluateJsFromCdpAsync] message received from ${webSocketDebuggerUrl}: ${data.toString()}`);
try {
const response = JSON.parse(data.toString());
if (response.id === REQUEST_ID) {
if (response.error) {
reject(new Error(response.error.message));
} else if (response.result.result.type === 'string') {
resolve(response.result.result.value);
} else {
resolve(undefined);
}
settled = true;
clearTimeout(timeoutHandle);
ws.close();
}
} catch (e) {
reject(e);
settled = true;
clearTimeout(timeoutHandle);
ws.close();
}
});
});
}
//# sourceMappingURL=CdpClient.js.map