--- a/NEWS	Fri Jun 18 16:08:35 2021 +0200
+++ b/NEWS	Fri Jun 18 16:37:12 2021 +0200
@@ -18,10 +18,11 @@
 --------
 
 * API version upgraded to 13
-* New routes:
-  - "/tools/bulk-anonymize" to anonymize a group of multiple, unrelated resources at once
-  - "/tools/bulk-delete" to delete a group of multiple, unrelated resources at once
-  - "/tools/bulk-modify" to modify a group of multiple, unrelated resources at once
+* New routes to handle groups of multiple, unrelated DICOM resources at once:
+  - "/tools/bulk-anonymize" to anonymize a set of resources
+  - "/tools/bulk-content" to get the content of a set of resources
+  - "/tools/bulk-delete" to delete a set of resources
+  - "/tools/bulk-modify" to modify a set of resources
 * ZIP archive/media generated in synchronous mode are now streamed by default
 * "Replace" tags in "/modify" and "/anonymize" now supports value representation AT
 * "/jobs/..." has new field "ErrorDetails" to help identify the cause of an error

--- a/OrthancServer/Sources/OrthancRestApi/OrthancRestApi.cpp	Fri Jun 18 16:08:35 2021 +0200
+++ b/OrthancServer/Sources/OrthancRestApi/OrthancRestApi.cpp	Fri Jun 18 16:37:12 2021 +0200
@@ -471,11 +471,10 @@
   static const std::string POST_SHORT = "Short";
 
   static const std::string DOCUMENT_SIMPLIFY =
-    "report the DICOM tags indexed in human-readable format "
-    "(using the symbolic name of the tags)";
+    "report the DICOM tags in human-readable format (using the symbolic name of the tags)";
 
   static const std::string DOCUMENT_SHORT =
-    "report the DICOM tags indexed in hexadecimal format";
+    "report the DICOM tags in hexadecimal format";
 
   static const std::string DOCUMENT_FULL =
     "report the DICOM tags in full format (tags indexed by their hexadecimal "
@@ -564,13 +563,13 @@
     if (defaultFormat != DicomToJsonFormat_Short)
     {
       call.GetDocumentation().SetRequestField(POST_SHORT, RestApiCallDocumentation::Type_Boolean,
-                                              "If set to `true`, " + DOCUMENT_SIMPLIFY, false);
+                                              "If set to `true`, " + DOCUMENT_SHORT, false);
     }
     
     if (defaultFormat != DicomToJsonFormat_Full)
     {
       call.GetDocumentation().SetRequestField(POST_FULL, RestApiCallDocumentation::Type_Boolean,
-                                              "If set to `true`, " + DOCUMENT_SIMPLIFY, false);
+                                              "If set to `true`, " + DOCUMENT_FULL, false);
     }
   }
 }

--- a/OrthancServer/Sources/OrthancRestApi/OrthancRestResources.cpp	Fri Jun 18 16:08:35 2021 +0200
+++ b/OrthancServer/Sources/OrthancRestApi/OrthancRestResources.cpp	Fri Jun 18 16:37:12 2021 +0200
@@ -3092,6 +3092,60 @@
   }
 
 
+  static void BulkContent(RestApiPostCall& call)
+  {
+    if (call.IsDocumentation())
+    {
+      OrthancRestApi::DocumentDicomFormat(call, DicomToJsonFormat_Human);
+
+      call.GetDocumentation()
+        .SetTag("System")
+        .SetSummary("Describe a set of instances")
+        .SetRequestField("Resources", RestApiCallDocumentation::Type_JsonListOfStrings,
+                         "List of the Orthanc identifiers of the patients/studies/series/instances of interest.", false)
+        .SetDescription("Get the content all the DICOM patients, studies, series or instances "
+                        "whose identifiers are provided in the `Resources` field, in one single call.");
+      return;
+    }
+
+    Json::Value request;
+    if (!call.ParseJsonRequest(request) ||
+        request.type() != Json::objectValue)
+    {
+      throw OrthancException(ErrorCode_BadRequest, 
+                             "The body must contain a JSON object");
+    }
+    else
+    {
+      const DicomToJsonFormat format = OrthancRestApi::GetDicomFormat(request, DicomToJsonFormat_Human);
+
+      ServerIndex& index = OrthancRestApi::GetIndex(call);
+      
+      std::list<std::string> resources;
+      SerializationToolbox::ReadListOfStrings(resources, request, "Resources");
+
+      Json::Value answer = Json::arrayValue;
+      for (std::list<std::string>::const_iterator
+             it = resources.begin(); it != resources.end(); ++it)
+      {
+        ResourceType type;
+        Json::Value item;
+        if (index.LookupResourceType(type, *it) &&
+            index.ExpandResource(item, *it, type, format))
+        {
+          answer.append(item);
+        }
+        else
+        {
+          CLOG(INFO, HTTP) << "Unknown resource during a bulk content retrieval: " << *it;
+        }
+      }
+
+      call.GetOutput().AnswerJson(answer);
+    }
+  }
+
+
   static void BulkDelete(RestApiPostCall& call)
   {
     if (call.IsDocumentation())
@@ -3101,7 +3155,7 @@
         .SetSummary("Delete a set of instances")
         .SetRequestField("Resources", RestApiCallDocumentation::Type_JsonListOfStrings,
                          "List of the Orthanc identifiers of the patients/studies/series/instances of interest.", false)
-        .SetDescription("Dellete all the DICOM patients, studies, series or instances "
+        .SetDescription("Delete all the DICOM patients, studies, series or instances "
                         "whose identifiers are provided in the `Resources` field.");
       return;
     }
@@ -3257,6 +3311,7 @@
     Register("/instances/{id}/reconstruct", ReconstructResource<ResourceType_Instance>);
     Register("/tools/reconstruct", ReconstructAllResources);
 
+    Register("/tools/bulk-content", BulkContent);
     Register("/tools/bulk-delete", BulkDelete);
   }
 }