@grafana/faro-web-tracing
Version:
Faro web tracing implementation.
40 lines • 1.86 kB
JavaScript
import { SpanKind } from '@opentelemetry/api';
import { USER_ACTION_CANCEL_MESSAGE_TYPE, USER_ACTION_END_MESSAGE_TYPE, USER_ACTION_START_MESSAGE_TYPE, } from '@grafana/faro-core';
import { apiMessageBus } from '@grafana/faro-web-sdk';
export class FaroUserActionSpanProcessor {
constructor(processor) {
this.processor = processor;
apiMessageBus.subscribe((msg) => {
if (msg.type === USER_ACTION_START_MESSAGE_TYPE) {
this.message = msg;
return;
}
if ([USER_ACTION_END_MESSAGE_TYPE, USER_ACTION_CANCEL_MESSAGE_TYPE].includes(msg.type)) {
this.message = undefined;
}
});
}
forceFlush() {
return this.processor.forceFlush();
}
onStart(span, parentContext) {
var _a, _b;
if (span.kind === SpanKind.CLIENT) {
// If the span is created when the message object is available it is created before the user action timeout has been reached so it belongs to the user-action.
// In this case we can add the user action name and parentId to the span attributes.
// If the span is created after the user action timeout span, the message object will be undefined which means the action has been cancelled or is ended.
if (this.message) {
span.attributes['faro.action.user.name'] = (_a = this.message) === null || _a === void 0 ? void 0 : _a.name;
span.attributes['faro.action.user.parentId'] = (_b = this.message) === null || _b === void 0 ? void 0 : _b.parentId;
}
}
this.processor.onStart(span, parentContext);
}
onEnd(span) {
this.processor.onEnd(span);
}
shutdown() {
return this.processor.shutdown();
}
}
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