Erik Miller f399a7acab feat(notifications-slack): add scope-based message update support
When a Backstage notification is re-sent with the same scope, the
notifications backend updates the existing DB record and sets
notification.updated. Previously, the SlackNotificationProcessor always
called chat.postMessage(), creating duplicate Slack messages.

This adds database-backed scope-based update support:

- New slack_message_timestamps table to persist Slack message ts values
  keyed by (scope, channel)
- After each chat.postMessage(), store the response ts in the database
- When postProcess receives a notification with updated set and a
  matching stored ts, use chat.update() instead of chat.postMessage()
- Scope context is passed as parameters through the call chain to avoid
  race conditions with concurrent postProcess calls
- Scheduled daily cleanup of old timestamp records (24h retention)
- New messagesUpdated metrics counter for observability
- Graceful degradation when no database is provided
- Explicitly picks only supported fields for chat.update calls

Signed-off-by: Erik Miller <erik.miller@gusto.com>
2026-04-03 09:03:18 -07:00
2026-03-23 14:02:15 +00:00
2025-09-18 15:57:24 +01:00
2026-03-20 15:39:50 +01:00
2026-03-18 21:29:27 +01:00
2026-03-22 13:31:53 +01:00
2026-03-24 14:54:00 +00:00
2026-02-02 14:06:20 +05:30

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Backstage

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What is Backstage?

Backstage is an open source framework for building developer portals. Powered by a centralized software catalog, Backstage restores order to your microservices and infrastructure and enables your product teams to ship high-quality code quickly without compromising autonomy.

Backstage unifies all your infrastructure tooling, services, and documentation to create a streamlined development environment from end to end.

software-catalog

Out of the box, Backstage includes:

  • Backstage Software Catalog for managing all your software such as microservices, libraries, data pipelines, websites, and ML models
  • Backstage Software Templates for quickly spinning up new projects and standardizing your tooling with your organizations best practices
  • Backstage TechDocs for making it easy to create, maintain, find, and use technical documentation, using a "docs like code" approach
  • Plus, a growing ecosystem of open source plugins that further expand Backstages customizability and functionality

Backstage was created by Spotify but is now hosted by the Cloud Native Computing Foundation (CNCF) as an Incubation level project. For more information, see the announcement.

Project roadmap

For information about the detailed project roadmap including delivered milestones, see the Roadmap.

Getting Started

To start using Backstage, see the Getting Started documentation.

Documentation

The documentation of Backstage includes:

Community

To engage with our community, you can use the following resources:

Governance

See the GOVERNANCE.md document in the backstage/community repository.

License

Copyright 2020-2026 © The Backstage Authors. All rights reserved. The Linux Foundation has registered trademarks and uses trademarks. For a list of trademarks of The Linux Foundation, please see our Trademark Usage page: https://www.linuxfoundation.org/trademark-usage

Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0

Security

Please report sensitive security issues using Spotify's bug-bounty program rather than GitHub.

For further details, see our complete security release process.

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