Merge branch 'release/1.3.0'

Author: Hanzhang Zeng (Roger)

README.md

@@ -1,3 +1,22 @@
+<img src="https://raw.githubusercontent.com/Azure/azure-functions-python-worker/dev/docs/Azure.Functions.svg" width = "180" alt="Functions Header Image">
+
+|Branch|Status|Coverage|
+|---|---|---|
+|master|[![Build Status](https://azfunc.visualstudio.com/Azure%20Functions%20Python/_apis/build/status/Azure%20Functions%20Python-CI?branchName=master)](https://azfunc.visualstudio.com/Azure%20Functions%20Python/_build/latest?definitionId=19&branchName=master)|![Azure DevOps coverage](https://img.shields.io/azure-devops/coverage/azfunc/Azure%20Functions%20Python/19/master)
+|dev|[![Build Status](https://azfunc.visualstudio.com/Azure%20Functions%20Python/_apis/build/status/Azure%20Functions%20Python-CI?branchName=dev)](https://azfunc.visualstudio.com/Azure%20Functions%20Python/_build/latest?definitionId=19&branchName=dev)|![Azure DevOps coverage](https://img.shields.io/azure-devops/coverage/azfunc/Azure%20Functions%20Python/19/dev)
+
+# Overview
+
+Python support for Azure Functions is based on Python 3.6/3.7/3.8, serverless hosting on Linux and the Functions 2.0 runtime.
+
+Here is the current status of Python in Azure Functions:
+
+What's available?
+
+- Build, test, debug and publish using Azure Functions Core Tools (CLI) or Visual Studio Code
+- Triggers / Bindings : HTTP, Blob, Queue, Timer, Cosmos DB, Event Grid, Event Hubs and Service Bus
+- Create a Python Function on Linux using a custom docker image
+- Triggers / Bindings : Custom binding support
 
 # Contributing
 

azure-pipelines.yml

@@ -1,38 +1,49 @@
 trigger:
-- master
-- dev
+  - master
+  - dev
+
+schedules:
+  - cron: "0 8 * * 1,3,5"
+    displayName: Monday, Wednesday and Friday - 1 AM (PDT) build
+    branches:
+      include:
+        - dev
+        - master
+      exclude:
+        - release/*
+        - releases/ancient/*
 
 jobs:
-- job: Tests
-  pool:
-    vmImage: 'ubuntu-16.04'
-  strategy:
-    matrix:
-      Python36:
-        pythonVersion: '3.6'
-      Python37:
-        pythonVersion: '3.7'
-      Python38:
-        pythonVersion: '3.8'
-    maxParallel: 3
-  steps:
-  - task: UsePythonVersion@0
-    inputs:
-      versionSpec: '$(pythonVersion)'
-      addToPath: true
-  - task: ShellScript@2
-    inputs:
-      disableAutoCwd: true
-      scriptPath: .ci/build.sh
-    displayName: 'Build'
-  - bash: |
-        chmod +x .ci/run_tests.sh
-        .ci/run_tests.sh
-    displayName: 'Run Tests'
-  - task: PublishCodeCoverageResults@1
-    inputs:
-      codeCoverageTool: cobertura
-      summaryFileLocation: coverage.xml
-  - bash: |
-        rm coverage.xml
-    displayName: 'Clearing coverage.xml file'
+  - job: Tests
+    pool:
+      vmImage: 'ubuntu-16.04'
+    strategy:
+      matrix:
+        Python36:
+          pythonVersion: '3.6'
+        Python37:
+          pythonVersion: '3.7'
+        Python38:
+          pythonVersion: '3.8'
+      maxParallel: 3
+    steps:
+      - task: UsePythonVersion@0
+        inputs:
+          versionSpec: '$(pythonVersion)'
+          addToPath: true
+      - task: ShellScript@2
+        inputs:
+          disableAutoCwd: true
+          scriptPath: .ci/build.sh
+        displayName: 'Build'
+      - bash: |
+          chmod +x .ci/run_tests.sh
+          .ci/run_tests.sh
+        displayName: 'Run Tests'
+      - task: PublishCodeCoverageResults@1
+        inputs:
+          codeCoverageTool: cobertura
+          summaryFileLocation: coverage.xml
+      - bash: |
+          rm coverage.xml
+        displayName: 'Clearing coverage.xml file'

azure/__init__.py

@@ -1,3 +1,7 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 from pkgutil import extend_path
 import typing
+
 __path__: typing.Iterable[str] = extend_path(__path__, __name__)

azure/functions/__init__.py

@@ -1,20 +1,26 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 from ._abc import TimerRequest, InputStream, Context, Out  # NoQA
 from ._eventhub import EventHubEvent  # NoQA
 from ._eventgrid import EventGridEvent, EventGridOutputEvent  # NoQA
 from ._cosmosdb import Document, DocumentList  # NoQA
 from ._http import HttpRequest  # NoQA
 from ._http import HttpResponse  # NoQA
 from ._http_wsgi import WsgiMiddleware # NoQA
+from .kafka import KafkaEvent, KafkaConverter, KafkaTriggerConverter  # NoQA
 from ._queue import QueueMessage  # NoQA
 from ._servicebus import ServiceBusMessage  # NoQA
 from ._durable_functions import OrchestrationContext  # NoQA
 from .meta import get_binding_registry  # NoQA
+
 # Import binding implementations to register them
 from . import blob  # NoQA
 from . import cosmosdb  # NoQA
 from . import eventgrid  # NoQA
 from . import eventhub  # NoQA
 from . import http  # NoQA
+from . import kafka # NoQA
 from . import queue  # NoQA
 from . import servicebus  # NoQA
 from . import timer  # NoQA
@@ -37,6 +43,9 @@
     'HttpRequest',
     'HttpResponse',
     'InputStream',
+    'KafkaEvent',
+    'KafkaConverter',
+    'KafkaTriggerConverter',
     'OrchestrationContext',
     'QueueMessage',
     'ServiceBusMessage',
@@ -46,4 +55,4 @@
     'WsgiMiddleware'
 )
 
-__version__ = '1.2.1'
+__version__ = '1.3.0'

azure/functions/_abc.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import abc
 import datetime
 import io

azure/functions/_cosmosdb.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import collections
 import json
 

azure/functions/_durable_functions.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 from typing import Union
 from . import _abc
 from importlib import import_module
@@ -33,12 +36,11 @@ def _serialize_custom_object(obj):
                         "function")
     # Encode to json using the object's `to_json`
     obj_type = type(obj)
-    dict_obj = {
+    return {
         "__class__": obj.__class__.__name__,
         "__module__": obj.__module__,
         "__data__": obj_type.to_json(obj)
     }
-    return dict_obj
 
 
 def _deserialize_custom_object(obj: dict) -> object:

azure/functions/_eventgrid.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import datetime
 import typing
 

azure/functions/_eventhub.py

@@ -1,27 +1,37 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import datetime
 import typing
 
-from azure.functions import _abc as funcabc
+from azure.functions import _abc as func_abc
+from azure.functions import meta
 
 
-class EventHubEvent(funcabc.EventHubEvent):
+class EventHubEvent(func_abc.EventHubEvent):
     """A concrete implementation of Event Hub message type."""
 
     def __init__(self, *,
                  body: bytes,
+                 trigger_metadata: typing.Mapping[str, meta.Datum] = None,
                  enqueued_time: typing.Optional[datetime.datetime] = None,
                  partition_key: typing.Optional[str] = None,
                  sequence_number: typing.Optional[int] = None,
                  offset: typing.Optional[str] = None,
                  iothub_metadata: typing.Optional[
                      typing.Mapping[str, str]] = None) -> None:
         self.__body = body
+        self.__trigger_metadata = trigger_metadata
         self.__enqueued_time = enqueued_time
         self.__partition_key = partition_key
         self.__sequence_number = sequence_number
         self.__offset = offset
         self.__iothub_metadata = iothub_metadata
 
+        # Cache for trigger metadata after Python object conversion
+        self._trigger_metadata_pyobj: typing.Optional[
+            typing.Mapping[str, typing.Any]] = None
+
     def get_body(self) -> bytes:
         return self.__body
 
@@ -45,6 +55,30 @@ def enqueued_time(self) -> typing.Optional[datetime.datetime]:
     def offset(self) -> typing.Optional[str]:
         return self.__offset
 
+    @property
+    def metadata(self) -> typing.Optional[typing.Mapping[str, typing.Any]]:
+        """Getting read-only trigger metadata in a Python dictionary.
+
+        Exposing the raw trigger_metadata to our customer. For cardinality=many
+        scenarios, each event points to the common metadata of all the events.
+
+        So when using metadata field when cardinality=many, it only needs to
+        take one of the events to get all the data (e.g. events[0].metadata).
+
+        Returns:
+        --------
+        typing.Mapping[str, object]
+            Return the Python dictionary of trigger metadata
+        """
+        if self.__trigger_metadata is None:
+            return None
+
+        if self._trigger_metadata_pyobj is None:
+            self._trigger_metadata_pyobj = {
+                k: v.python_value for (k, v) in self.__trigger_metadata.items()
+            }
+        return self._trigger_metadata_pyobj
+
     def __repr__(self) -> str:
         return (
             f'<azure.EventHubEvent '

azure/functions/_http.py

@@ -1,3 +1,6 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
 import collections.abc
 import io
 import json