@neo-one/monitor
Version:
NEO•ONE monitoring.
82 lines (80 loc) • 10.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const koa_1 = tslib_1.__importDefault(require("koa"));
const koa_mount_1 = tslib_1.__importDefault(require("koa-mount"));
const prom = tslib_1.__importStar(require("prom-client"));
const MonitorBase_1 = require("./MonitorBase");
const DEFAULT_LOGGER = {
log: () => {
},
close: (callback) => {
callback();
},
};
class NodeMonitor extends MonitorBase_1.MonitorBase {
static create({ service, logger = DEFAULT_LOGGER, tracer, spanLogLevel }) {
prom.collectDefaultMetrics({ timeout: 4000 });
return new NodeMonitor({
service,
component: service,
logger,
tracer,
now: () => Date.now(),
spanLogLevel,
});
}
forContext(ctx) {
return this.withLabels({
[this.labels.HTTP_METHOD]: ctx.request.method,
[this.labels.SPAN_KIND]: 'server',
[this.labels.HTTP_REQUEST_PROTOCOL]: ctx.request.protocol,
}).withData({
[this.labels.HTTP_HEADERS]: JSON.stringify(ctx.request.headers),
[this.labels.HTTP_URL]: ctx.request.originalUrl,
[this.labels.HTTP_FULLPATH]: ctx.request.path,
[this.labels.HTTP_REQUEST_QUERY]: ctx.request.querystring,
[this.labels.PEER_ADDRESS]: ctx.request.ip,
[this.labels.PEER_PORT]: ctx.request.socket.remotePort,
[this.labels.HTTP_REQUEST_SIZE]: ctx.request.length,
});
}
forMessage(message) {
const app = new koa_1.default();
app.proxy = true;
app.silent = true;
const ctx = app.createContext(message, undefined);
return this.forContext(ctx);
}
serveMetrics(port) {
const app = new koa_1.default();
app.proxy = true;
app.silent = true;
const monitor = this.at('telemetry');
app.on('error', (error) => {
monitor.logError({
name: 'http_server_request_uncaught_error',
message: 'Unexpected uncaught request error.',
error,
});
});
app.use(koa_mount_1.default('/metrics', (ctx) => {
ctx.body = prom.register.metrics();
}));
this.mutableServer = app.listen(port);
}
async closeInternal() {
clearInterval(prom.collectDefaultMetrics());
await Promise.all([
super.closeInternal(),
new Promise((resolve, reject) => {
if (this.mutableServer !== undefined) {
this.mutableServer.close(reject);
}
resolve();
}),
]);
}
}
exports.NodeMonitor = NodeMonitor;
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