Cloud Healthcare API alpha HL7v2 samples and tests (#881)

Author: noerog

healthcare/hl7v2/README.md

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+<img src="https://avatars2.githubusercontent.com/u/2810941?v=3&s=96" alt="Google Cloud Platform logo" title="Google Cloud Platform" align="right" height="96" width="96"/>
+
+# Cloud Healthcare API Node.js HL7v2 store and HL7v2 message example
+
+This sample app demonstrates HL7v2 store and HL7v2 message management for the Cloud Healthcare API.
+
+# Setup
+
+Run the following command to install the library dependencies for Node.js:
+
+    npm install
+
+# Running the samples
+
+## HL7v2 stores
+
+    hl7v2_stores.js <command>
+
+    Commands:
+        hl7v2_stores.js createHl7v2Store <datasetId> <hl7v2StoreId>   Creates a new HL7v2 store within the parent dataset.
+        hl7v2_stores.js deleteHl7v2Store <datasetId> <hl7v2StoreId>   Deletes the HL7v2 store and removes all resources that
+                                                                      are contained within it.
+        hl7v2_stores.js getHl7v2Store <datasetId> <hl7v2StoreId>      Gets the specified HL7v2 store or returns NOT_FOUND if
+                                                                      it doesn't exist.
+        hl7v2_stores.js listHl7v2Stores <datasetId>                   Lists the HL7v2 stores in the given dataset.
+        hl7v2_stores.js patchHl7v2Store <datasetId> <hl7v2StoreId>    Updates the HL7v2 store.
+        <pubsubTopic>
+
+    Options:
+    --version             Show version number                                                                    [boolean]
+    --apiKey, -a          The API key used for discovering the API.
+                                                                                                                  [string]
+    --cloudRegion, -c                                                                    [string] [default: "us-central1"]
+    --projectId, -p       The Project ID to use. Defaults to the value of the GCLOUD_PROJECT or GOOGLE_CLOUD_PROJECT
+                          environment variables.                                                                  [string]
+    --serviceAccount, -s  The path to your service credentials JSON.
+                                                                                                                  [string]
+    --help                Show help                                                                              [boolean]
+
+
+## HL7v2 messages
+
+    hl7v2_messages.js <command>
+
+    Commands:
+        hl7v2_messages.js createHl7v2Message <datasetId>              Creates a new HL7v2 message and, if configured, sends a
+        <hl7v2StoreId> <messageFile>                                  notification to the parent store's Cloud Pub/Sub topic.
+        hl7v2_messages.js ingestHl7v2Message <datasetId>              Ingests a new HL7v2 message from the hospital and, if
+        <hl7v2StoreId> <messageFile>                                  configured, sends a notification to the Cloud Pub/Sub
+                                                                      topic.
+        hl7v2_messages.js deleteHl7v2Message <datasetId>              Deletes the specified HL7v2 message.
+        <hl7v2StoreId> <messageId>
+        hl7v2_messages.js getHl7v2Message <datasetId> <hl7v2StoreId>  Gets the specified HL7v2 message.
+        <messageId>
+        hl7v2_messages.js listHl7v2Messages <datasetId>               Lists all the messages in the given HL7v2 store.
+        <hl7v2StoreId>
+        hl7v2_messages.js patchHl7v2Message <datasetId>               Updates the specified HL7v2 message.
+        <hl7v2StoreId> <labelKey> <labelValue>
+
+    Options:
+    --version             Show version number                                                                    [boolean]
+    --apiKey, -a          The API key used for discovering the API.
+                                                                                                                  [string]
+    --cloudRegion, -c                                                                    [string] [default: "us-central1"]
+    --projectId, -p       The Project ID to use. Defaults to the value of the GCLOUD_PROJECT or GOOGLE_CLOUD_PROJECT
+                          environment variables.                                                                  [string]
+    --serviceAccount, -s  The path to your service credentials JSON.
+                                                                                                                  [string]
+    --help                Show help                                                                              [boolean]
+
+For more information, see https://cloud.google.com/healthcare/docs