Healthcare API alpha DICOM samples and tests (#838)

Author: noerog

healthcare/dicom/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 DICOM store and DICOMweb example
+
+This sample app demonstrates DICOM store management and the DICOMweb implementation for the Cloud Healthcare API.
+
+# Setup
+
+Run the following command to install the library dependencies for Node.js:
+
+    npm install
+
+# Running the samples
+
+## DICOM stores
+
+    dicom_stores.js <command>
+
+    Commands:
+        dicom_stores.js createDicomStore <datasetId> <dicomStoreId>   Creates a new DICOM store within the parent dataset.
+        dicom_stores.js deleteDicomStore <datasetId> <dicomStoreId>   Deletes the DICOM store and removes all resources that
+                                                                      are contained within it.
+        dicom_stores.js getDicomStore <datasetId> <dicomStoreId>      Gets the specified DICOM store or returns NOT_FOUND if
+                                                                      it doesn't exist.
+        dicom_stores.js listDicomStores <datasetId>                   Lists the DICOM stores in the given dataset.
+        dicom_stores.js patchDicomStore <datasetId> <dicomStoreId>    Updates the DICOM store.
+        <pubsubTopic>
+        dicom_stores.js importDicomObject <datasetId> <dicomStoreId>  Imports data into the DICOM store by copying it from the
+        <contentUri>                                                  specified source.
+        dicom_stores.js exportDicomInstanceGcs <datasetId>            Exports data to a Cloud Storage bucket by copying it
+        <dicomStoreId> <uriPrefix>                                    from the DICOM store.
+
+    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]
+
+
+## DICOMweb
+
+    dicomweb.js <command>
+
+    Commands:
+        dicomweb.js dicomWebStoreInstance <datasetId> <dicomStoreId>  Handles the POST requests specified in the DICOMweb
+        <dcmFile> <boundary>                                          standard.
+        dicomweb.js dicomWebSearchInstances <datasetId>               Handles the GET requests specified in the DICOMweb
+        <dicomStoreId>                                                standard.
+        dicomweb.js dicomWebRetrieveStudy <datasetId> <dicomStoreId>  Handles the GET requests specified in the DICOMweb
+        <studyUid>                                                    standard.
+        dicomweb.js dicomWebDeleteStudy <datasetId> <dicomStoreId>    Handles DELETE requests.
+        <studyUid>
+
+    Options:
+    --version             Show version number                                                                    [boolean]
+    --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