Add Resource Interface (#49)

packages/opentelemetry-types/src/resources/Resource.ts

@@ -0,0 +1,24 @@
+/**
+ * Copyright 2019, OpenTelemetry Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/** A Resource describes the entity for which a signal was collected. */
+export interface Resource {
+  /**
+   * A dictionary of labels with string keys and values that provide information
+   * about the entity.
+   */
+  readonly labels: { [key: string]: string };
+}