Support Firebase Performance Monitoring #370

Author: EddyVerbruggen

src/performance/index.ts

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+import * as perf from "./performance";
+export const performance = perf;

src/performance/performance.android.ts

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+declare const com: any;
+
+const FirebasePerformance = com.google.firebase.perf.FirebasePerformance;
+
+export function startTrace(name: string): FirebaseTrace {
+  const trace = FirebasePerformance.getInstance().newTrace(name);
+  trace.start();
+  return new FirebaseTrace(trace);
+}
+
+export class FirebaseTrace {
+  constructor(private nativeTrace: any /* com.google.firebase.perf.metrics.Trace */) {
+  }
+
+  setValue(attribute: string, value: string): void {
+    this.nativeTrace.putAttribute(attribute, value);
+  }
+
+  getValue(attribute: string): string {
+    return this.nativeTrace.getAttribute(attribute);
+  }
+
+  // TODO this is a Java map I guess
+  getAttributes(): Map<string, string> {
+    return this.nativeTrace.getAttributes();
+  }
+
+  removeAttribute(attribute: string): void {
+    this.nativeTrace.removeAttribute(attribute);
+  }
+
+  incrementMetric(metric: string, by: number): void {
+    this.nativeTrace.incrementMetric(metric, by);
+  }
+
+  stop(): void {
+    this.nativeTrace.stop();
+  }
+}

src/performance/performance.d.ts

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+export declare class FirebaseTrace {
+  setValue(attribute: string, value: string): void;
+  getValue(attribute: string): string;
+  getAttributes(): Map<string, string>;
+  removeAttribute(attribute: string): void;
+  incrementMetric(metric: string, by: number): void;
+  stop(): void;
+}
+
+export declare function startTrace(name: string): FirebaseTrace;

src/performance/performance.ios.ts

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+import { firebaseUtils } from "../utils";
+
+export function startTrace(name: string): FirebaseTrace {
+  return new FirebaseTrace(FIRPerformance.sharedInstance().traceWithName(name));
+}
+
+export class FirebaseTrace {
+  constructor(private nativeTrace: FIRTrace) {
+  }
+
+  setValue(attribute: string, value: string): void {
+    this.nativeTrace.setValueForAttribute(value, attribute);
+  }
+
+  getValue(attribute: string): string {
+    return this.nativeTrace.valueForAttribute(attribute);
+  }
+
+  getAttributes(): Map<string, string> {
+    return firebaseUtils.toJsObject(this.nativeTrace.attributes);
+  }
+
+  removeAttribute(attribute: string): void {
+    this.nativeTrace.removeAttribute(attribute);
+  }
+
+  incrementMetric(metric: string, by: number): void {
+    this.nativeTrace.incrementMetricByInt(metric, by);
+  }
+
+  stop(): void {
+    this.nativeTrace.stop();
+  }
+}