feat: Enable REST transport support

google/cloud/dataflow_v1beta3/gapic_metadata.json

@@ -26,6 +26,16 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "FlexTemplatesServiceClient",
+          "rpcs": {
+            "LaunchFlexTemplate": {
+              "methods": [
+                "launch_flex_template"
+              ]
+            }
+          }
         }
       }
     },
@@ -110,6 +120,46 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "JobsV1Beta3Client",
+          "rpcs": {
+            "AggregatedListJobs": {
+              "methods": [
+                "aggregated_list_jobs"
+              ]
+            },
+            "CheckActiveJobs": {
+              "methods": [
+                "check_active_jobs"
+              ]
+            },
+            "CreateJob": {
+              "methods": [
+                "create_job"
+              ]
+            },
+            "GetJob": {
+              "methods": [
+                "get_job"
+              ]
+            },
+            "ListJobs": {
+              "methods": [
+                "list_jobs"
+              ]
+            },
+            "SnapshotJob": {
+              "methods": [
+                "snapshot_job"
+              ]
+            },
+            "UpdateJob": {
+              "methods": [
+                "update_job"
+              ]
+            }
+          }
         }
       }
     },
@@ -134,6 +184,16 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "MessagesV1Beta3Client",
+          "rpcs": {
+            "ListJobMessages": {
+              "methods": [
+                "list_job_messages"
+              ]
+            }
+          }
         }
       }
     },
@@ -178,6 +238,26 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "MetricsV1Beta3Client",
+          "rpcs": {
+            "GetJobExecutionDetails": {
+              "methods": [
+                "get_job_execution_details"
+              ]
+            },
+            "GetJobMetrics": {
+              "methods": [
+                "get_job_metrics"
+              ]
+            },
+            "GetStageExecutionDetails": {
+              "methods": [
+                "get_stage_execution_details"
+              ]
+            }
+          }
         }
       }
     },
@@ -222,6 +302,26 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "SnapshotsV1Beta3Client",
+          "rpcs": {
+            "DeleteSnapshot": {
+              "methods": [
+                "delete_snapshot"
+              ]
+            },
+            "GetSnapshot": {
+              "methods": [
+                "get_snapshot"
+              ]
+            },
+            "ListSnapshots": {
+              "methods": [
+                "list_snapshots"
+              ]
+            }
+          }
         }
       }
     },
@@ -266,6 +366,26 @@
               ]
             }
           }
+        },
+        "rest": {
+          "libraryClient": "TemplatesServiceClient",
+          "rpcs": {
+            "CreateJobFromTemplate": {
+              "methods": [
+                "create_job_from_template"
+              ]
+            },
+            "GetTemplate": {
+              "methods": [
+                "get_template"
+              ]
+            },
+            "LaunchTemplate": {
+              "methods": [
+                "launch_template"
+              ]
+            }
+          }
         }
       }
     }

google/cloud/dataflow_v1beta3/services/flex_templates_service/client.py

@@ -39,6 +39,7 @@
 from .transports.base import DEFAULT_CLIENT_INFO, FlexTemplatesServiceTransport
 from .transports.grpc import FlexTemplatesServiceGrpcTransport
 from .transports.grpc_asyncio import FlexTemplatesServiceGrpcAsyncIOTransport
+from .transports.rest import FlexTemplatesServiceRestTransport
 
 
 class FlexTemplatesServiceClientMeta(type):
@@ -54,6 +55,7 @@ class FlexTemplatesServiceClientMeta(type):
     )  # type: Dict[str, Type[FlexTemplatesServiceTransport]]
     _transport_registry["grpc"] = FlexTemplatesServiceGrpcTransport
     _transport_registry["grpc_asyncio"] = FlexTemplatesServiceGrpcAsyncIOTransport
+    _transport_registry["rest"] = FlexTemplatesServiceRestTransport
 
     def get_transport_class(
         cls,
@@ -327,6 +329,9 @@ def __init__(
             transport (Union[str, FlexTemplatesServiceTransport]): The
                 transport to use. If set to None, a transport is chosen
                 automatically.
+                NOTE: "rest" transport functionality is currently in a
+                beta state (preview). We welcome your feedback via an
+                issue in this library's source repository.
             client_options (google.api_core.client_options.ClientOptions): Custom options for the
                 client. It won't take effect if a ``transport`` instance is provided.
                 (1) The ``api_endpoint`` property can be used to override the

google/cloud/dataflow_v1beta3/services/flex_templates_service/transports/__init__.py

@@ -19,16 +19,20 @@
 from .base import FlexTemplatesServiceTransport
 from .grpc import FlexTemplatesServiceGrpcTransport
 from .grpc_asyncio import FlexTemplatesServiceGrpcAsyncIOTransport
+from .rest import FlexTemplatesServiceRestInterceptor, FlexTemplatesServiceRestTransport
 
 # Compile a registry of transports.
 _transport_registry = (
     OrderedDict()
 )  # type: Dict[str, Type[FlexTemplatesServiceTransport]]
 _transport_registry["grpc"] = FlexTemplatesServiceGrpcTransport
 _transport_registry["grpc_asyncio"] = FlexTemplatesServiceGrpcAsyncIOTransport
+_transport_registry["rest"] = FlexTemplatesServiceRestTransport
 
 __all__ = (
     "FlexTemplatesServiceTransport",
     "FlexTemplatesServiceGrpcTransport",
     "FlexTemplatesServiceGrpcAsyncIOTransport",
+    "FlexTemplatesServiceRestTransport",
+    "FlexTemplatesServiceRestInterceptor",
 )