js: stub out observe api datadog

Author: G4Vi

js/src/lib/adapters/datadog/formatter.ts

@@ -1,6 +1,9 @@
 import {
-  Nanoseconds,
+  Log,
   MemoryGrowAmount,
+  Metric,
+  MetricFormat,
+  Nanoseconds,
   newSpanId,
   newTraceId,
   TelemetryId,
@@ -52,6 +55,20 @@ export const addAllocation = (span: Span, amount: MemoryGrowAmount) => {
   span.meta[allocationKey] = sumAmount.toString();
 };
 
+export const addMetric = (span: Span, metric: Metric) => {
+  if (metric.format !== MetricFormat.StatsdFormat) {
+    console.error('cannot add non-statsd metric');
+    return;
+  }
+  const [key, value] = metric.message.split(/:(.*)/);
+};
+
+export const addTags = (span: Span, tags: string[]) => {
+};
+
+export const addLog = (span: Span, log: Log) => {
+};
+
 export class DatadogFormatter {
   constructor(public traces: Trace[]) { }
 

js/src/lib/adapters/datadog/mod.ts

@@ -5,13 +5,19 @@ import {
   CustomEvent,
   FunctionCall,
   MemoryGrow,
+  Metric,
+  MetricFormat,
+  Log,
+  LogLevel,
   ObserveEvent,
   Options,
   TelemetryId,
   WASM,
+  SpanTags,
 } from "../../mod.ts";
 import { SpanCollector } from "../../collectors/span/mod.ts";
-import { addAllocation, DatadogFormatter, Trace } from "./formatter.ts";
+import { addAllocation, addMetric, addTags, addLog, DatadogFormatter, Trace } from "./formatter.ts";
+
 export enum DatadogTraceType {
   Web = "web",
   Db = "db",
@@ -179,6 +185,15 @@ export class DatadogAdapter extends Adapter {
       if (event instanceof MemoryGrow) {
         addAllocation(span, event.amount);
       }
+      if (event instanceof Metric) {
+        addMetric(span, event);
+      }
+      if (event instanceof SpanTags) {
+        addTags(span, event.tags);
+      }
+      if (event instanceof Log) {
+        addLog(span, event);
+      }
     });
   }