Apply defaults configuration options in constructor.

packages/honeycomb-opentelemetry-web/examples/hello-world-web/index.js

@@ -13,7 +13,7 @@ const main = () => {
     // defaults to sending to US instance of Honeycomb
     // endpoint: "https://api.eu1.honeycomb.io/v1/traces", // uncomment to send to EU instance
     apiKey: 'api-key', // Replace with your Honeycomb Ingest API Key
-    serviceName: 'hny-web-distro-example:hello-world-web', // Replace with your application name. Honeycomb will name your dataset using this variable.
+    serviceName: 'hny-web-distro-example:JAN25:hello-world-web', // Replace with your application name. Honeycomb will name your dataset using this variable.
     debug: true,
     instrumentations: [
       getWebAutoInstrumentations({
@@ -30,6 +30,7 @@ const main = () => {
         dataAttributes: ['hello', 'barBiz'],
       },
     },
+    localVisualizations: true,
   });
   sdk.start();
   const tracer = trace.getTracer('click-tracer');

packages/honeycomb-opentelemetry-web/src/honeycomb-otel-sdk.ts

@@ -10,6 +10,7 @@ import { configureDeterministicSampler } from './deterministic-sampler';
 import { validateOptionsWarnings } from './validate-options';
 import { WebVitalsInstrumentation } from './web-vitals-autoinstrumentation';
 import { GlobalErrorsInstrumentation } from './global-errors-autoinstrumentation';
+import { defaultOptions } from './util';
 
 export class HoneycombWebSDK extends WebSDK {
   constructor(options?: HoneycombOptions) {
@@ -28,9 +29,9 @@ export class HoneycombWebSDK extends WebSDK {
         ),
       );
     }
-
-    super({
-      ...options,
+    const optionsWithDefaults = { ...defaultOptions, ...options };
+    const theOpts = {
+      ...optionsWithDefaults,
       instrumentations,
       resource: mergeResources([
         configureBrowserAttributesResource(),
@@ -39,17 +40,18 @@ export class HoneycombWebSDK extends WebSDK {
         options?.resourceAttributes,
         configureHoneycombResource(),
       ]),
-      sampler: configureDeterministicSampler(options),
+      sampler: configureDeterministicSampler(optionsWithDefaults),
       // Exporter is configured through the span processor because
       // the base SDK does not allow having both a spanProcessor and a
       // traceExporter configured at the same time.
-      spanProcessor: configureSpanProcessors(options),
-    });
+      spanProcessor: configureSpanProcessors(optionsWithDefaults),
+    };
+    super(theOpts);
 
-    validateOptionsWarnings(options);
+    validateOptionsWarnings(optionsWithDefaults);
 
-    if (options?.debug) {
-      configureDebug(options);
+    if (optionsWithDefaults?.debug) {
+      configureDebug(optionsWithDefaults);
     }
   }
 }