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@kalaspuff kalaspuff released this 20 Feb 07:03
· 38 commits to master since this release
0.27.0
This tag was signed with the committer鈥檚 verified signature.
kalaspuff Carl Oscar Aaro
GPG key ID: E05A95146D18CE4B
Learn about vigilant mode.
84fc59e
This commit was signed with the committer鈥檚 verified signature.
kalaspuff Carl Oscar Aaro
GPG key ID: E05A95146D18CE4B
Learn about vigilant mode.

Send messages directly to SQS queues (SQS.SendMessage)

  • Added the function tomodachi.sqs_send_message (tomodachi.aws_sns_sqs_send_message) to send a message directly to an SQS queue. It mostly works the same way as the tomodachi.sns_publish (tomodachi.aws_sns_sqs_publish) function, but sends a message directly to the specified SQS queue.

    This is useful when you know the recipient queue of a message, for example when manually sending messages to a dead-letter queue or to do command-like messaging instead of event-based messaging.

  • The message body of tomodachi.sqs_send_message calls is by default built using the tomodachi.transport.aws_sns_sqs.MessageBodyFormatter implementation, which will encode the message body as JSON and embed it within the "Message" property also using the service specified message envelope functionality.

    The message includes some additional properties, mimicing how SNS notifications are represented when they are sent to subscribed SQS queues (with the exception that these messages are of type "Message" to differentiate from SNS notifications that are by AWS typed "Notification".

    For custom or more advanced setups requiring more flexibility, the implementation can be overridden by providing a callable to the message_body_formatter keyword argument of sqs_send_message calls. The callable receives a message context object and returns the raw message (as a string) that will be sent to SQS as the message body.

    Setting message_body_formatter to None will disable default message body formatting (and incidentally also the message envelope builder), causing the message body to be as is specified within the data argument to the sqs_send_message call.

  • Trying to send messages to an SQS queue that does not exist will result in a tomodachi.transport.aws_sns_sqs.QueueDoesNotExistError exception being raised, which can be caught also by tomodachi.transport.aws_sns_sqs.AWSSNSSQSException, botocore.exceptions.ClientError or <botocore_sqs_client>.exceptions.QueueDoesNotExist.

Message attributes' improvements and fixes

  • Receives and propagates message attributes for all messages received on a queue, which means message attribute propagation will work for messages published to SNS, using either raw message delivery or not, and/or messages that were directly sent to SQS via SQS.SendMessage calls.

    Currently, messages on SQS queues consumed and parsed by tomodachi services still need to be JSON formatted and be embedded within the "Message" property (which is how SNS notification messages are represented by default, unless a queue is setup for raw message delivery).

  • Fixes a bug that was causing message attributes in binary form to be invalidly processed.

OTEL updates

  • OTEL auto instrumentation for the new tomodachi.sqs_send_message functionality.
  • OTEL attributes for AWS SNS+SQS messaging have been updated according to the latest OTEL semantic conventions, where the original publish destination is recorded as messaging.destination_publish.name.
  • OTEL metrics for AWS SNS+SQS messaging uses the new metric instrument name messaging.aws_sqs.duration, which was previously named messaging.amazonsqs.duration.

Type hints and input validation

  • Additional support for the types-aiobotocore-* packages to provide improved type hints internally.
  • AWS credentials provided to the aiobotocore connector are using stricter type hint annotations.
  • Stricter argument validation when requesting aiobotocore connector clients to prevent issues caused by a mistyped AWS service, protecting against accidental use of wrong client for a specific service.

Handler arguments

  • Added message_type (str | None) to the list of keyword argument provided transport values that can be used in function signatures for AWS SNS+SQS handlers. Holds the value "Notification" for messages received as part of an SNS notification, unless the queue uses raw message delivery. In other cases the value is set to the value from a message body's JSON property "Type" if it exists.
  • Tailored for more advanced workflows, where more flexibility is needed, raw_message_body (str) has also been added to the list of keyword argument provided transport values for AWS SNS+SQS handlers. The raw_message_body value is set to the full content (non-decoded, as a string) from a received message' "Body", which can be used to implement custom listener with greater access to the raw message data.
  • Fixes an issue where the topic argument to message handlers in functions was always populated with the value of the topic argument to the @tomodachi.aws_sns_sqs decorator, even if the message was sent to a different topic. The topic argument to message handlers in functions will now be populated with the actual topic name destination to where the message was published, if published via SNS. If the message was not published to a topic, the value is set to empty string.

Other

  • Fixes issue where different OTEL tracers for the same TracerProvider could end up with different resource attributes, iff a service class' name attribute's value were to be used as the service.name OTEL resource attribute (instead set to "unknown_service" for tracers that were created before the service initialized).
  • Multi-service execution won't accurately distinguish the service name of OTEL tracers, OTEL meters and OTEL loggers. In the rare case where there's multiple tomodachi services started within the same Python process, the name from the first instrumented service class will now be used as the service.name OTEL resource attribute for all tracers derived from the same tracer provider. The recommended solution if this is an issue, is to split the services into separate processes instead.
  • Refactoring of tomodachi.aws_sns_sqs.get_queue_url and tomodachi.aws_sns_sqs.get_queue_url_from_arn with better support for additional types of input and/or potentially prefixing of queues. The function also now caches the queue URL to avoid unnecessary calls to the AWS API.
  • Support for aiobotocore 2.10.x releases and 2.11.x releases.
  • Documented the lifecycle termination process for services, for example when they receive a SIGINT or SIGTERM signal. Added details describing how handlers are awaited and for how long as part of the graceful termination sequence.
  • Converted repo documentation from RST format to Markdown. It finally happened.
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