feat(api-metrics): add schemaUrl to meter creations

experimental/packages/opentelemetry-api-metrics/src/NoopMeterProvider.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { Meter } from './types/Meter';
+import { Meter, MeterOptions } from './types/Meter';
 import { MeterProvider } from './types/MeterProvider';
 import { NOOP_METER } from './NoopMeter';
 
@@ -23,7 +23,7 @@ import { NOOP_METER } from './NoopMeter';
  * for all calls to `getMeter`
  */
 export class NoopMeterProvider implements MeterProvider {
-  getMeter(_name?: string, _version?: string): Meter {
+  getMeter(_name: string, _version?: string, _options?: MeterOptions): Meter {
     return NOOP_METER;
   }
 }

experimental/packages/opentelemetry-api-metrics/src/api/metrics.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { Meter } from '../types/Meter';
+import { Meter, MeterOptions } from '../types/Meter';
 import { MeterProvider } from '../types/MeterProvider';
 import { NOOP_METER_PROVIDER } from '../NoopMeterProvider';
 import {
@@ -73,8 +73,8 @@ export class MetricsAPI {
   /**
    * Returns a meter from the global meter provider.
    */
-  public getMeter(name: string, version?: string): Meter {
-    return this.getMeterProvider().getMeter(name, version);
+  public getMeter(name: string, version?: string, options?: MeterOptions): Meter {
+    return this.getMeterProvider().getMeter(name, version, options);
   }
 
   /** Remove the global meter provider */

experimental/packages/opentelemetry-api-metrics/src/types/Meter.ts

@@ -27,6 +27,16 @@ import {
 } from './Metric';
 import { ObservableResult } from './ObservableResult';
 
+/**
+ * An interface describes additional metadata of a meter.
+ */
+export interface MeterOptions {
+  /**
+   * The schemaUrl of the meter or instrumentation library
+   */
+  schemaUrl?: string;
+}
+
 /**
  * An interface to allow the recording metrics.
  *

experimental/packages/opentelemetry-api-metrics/src/types/MeterProvider.ts

@@ -14,19 +14,20 @@
  * limitations under the License.
  */
 
-import { Meter } from './Meter';
+import { Meter, MeterOptions } from './Meter';
 
 /**
  * A registry for creating named {@link Meter}s.
  */
 export interface MeterProvider {
   /**
-   * Returns a Meter, creating one if one with the given name and version is
-   * not already created.
+   * Returns a Meter, creating one if one with the given name, version, and
+   * schemaUrl pair is not already created.
    *
    * @param name The name of the meter or instrumentation library.
    * @param version The version of the meter or instrumentation library.
+   * @param options The options of the meter or instrumentation library.
    * @returns Meter A Meter with the given name and version
    */
-  getMeter(name: string, version?: string): Meter;
+  getMeter(name: string, version?: string, options?: MeterOptions): Meter;
 }

experimental/packages/opentelemetry-sdk-metrics-base/src/MeterProvider.ts

@@ -49,11 +49,16 @@ export class MeterProvider implements api.MeterProvider {
    * @returns Meter A Meter with the given name and version
    */
   getMeter(name: string, version?: string, config?: MeterConfig): Meter {
-    const key = `${name}@${version || ''}`;
+    const key = `${name}@${version ?? ''}:${config?.schemaUrl ?? ''}`;
     if (!this._meters.has(key)) {
       this._meters.set(
         key,
-        new Meter({ name, version }, config || this._config)
+        new Meter({
+          name,
+          version,
+          // @ts-expect-error ts(2345) TODO: upgrade @opentelemetry/core InstrumentationLibrary definition
+          schemaUrl: config?.schemaUrl
+        }, Object.assign({}, this._config, config))
       );
     }
 

experimental/packages/opentelemetry-sdk-metrics-base/src/types.ts

@@ -20,7 +20,7 @@ import { Processor } from './export/Processor';
 import { MetricExporter } from './export/types';
 
 /** MeterConfig provides an interface for configuring a Meter. */
-export interface MeterConfig {
+export interface MeterConfig extends api.MeterOptions {
   /** Metric exporter. */
   exporter?: MetricExporter;
 

packages/opentelemetry-core/src/common/types.ts

@@ -47,6 +47,7 @@ export interface ShimWrapped extends Function {
 export interface InstrumentationLibrary {
   readonly name: string;
   readonly version?: string;
+  readonly schemaUrl?: string;
 }
 
 /** Defines an error handler function */