fix: added support for Opentelemetry 0.18

package.json

@@ -53,8 +53,7 @@
     "@google-cloud/precise-date": "^2.0.0",
     "@google-cloud/projectify": "^2.0.0",
     "@google-cloud/promisify": "^2.0.0",
-    "@opentelemetry/api": "^0.12.0",
-    "@opentelemetry/tracing": "^0.12.0",
+    "@opentelemetry/api": "^0.18.0",
     "@types/duplexify": "^3.6.0",
     "@types/long": "^4.0.0",
     "arrify": "^2.0.0",
@@ -66,6 +65,7 @@
     "p-defer": "^3.0.0"
   },
   "devDependencies": {
+    "@opentelemetry/tracing": "^0.18.0",
     "@grpc/proto-loader": "^0.5.4",
     "@types/execa": "^0.9.0",
     "@types/extend": "^3.0.0",

src/opentelemetry-tracing.ts

@@ -13,8 +13,15 @@
  * limitations under the License.
  */
 
-import {Attributes, SpanContext, Span, trace} from '@opentelemetry/api';
-import {Tracer} from '@opentelemetry/tracing';
+import {
+  Tracer,
+  SpanAttributes,
+  SpanContext,
+  Span,
+  context,
+  trace,
+  setSpanContext,
+} from '@opentelemetry/api';
 
 /**
  * Wrapper for creating OpenTelemetry Spans
@@ -31,13 +38,21 @@ export class OpenTelemetryTracer {
    */
   createSpan(
     spanName: string,
-    attributes?: Attributes,
+    attributes?: SpanAttributes,
     parent?: SpanContext
   ): Span {
     const tracerProvider: Tracer = trace.getTracer('default') as Tracer;
-    return tracerProvider.startSpan(spanName, {
-      parent: parent,
-      attributes: attributes,
-    });
+
+    let spanContext = undefined;
+    if (parent) {
+      spanContext = setSpanContext(context.active(), parent);
+    }
+    return tracerProvider.startSpan(
+      spanName,
+      {
+        attributes: attributes,
+      },
+      spanContext
+    );
   }
 }

test/opentelemetry-tracing.ts

@@ -31,7 +31,7 @@ describe('OpenTelemetryTracer', () => {
     spanId: '6e0c63257de34c92',
     traceFlags: api.TraceFlags.SAMPLED,
   };
-  const spanAttributes: api.Attributes = {
+  const spanAttributes: api.SpanAttributes = {
     foo: 'bar',
   };