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29 lines
1.1 KiB
Markdown
29 lines
1.1 KiB
Markdown
---
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title: "Server"
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sidebar_position: 2
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---
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The server is the highly scalable backbone of the Mattermost project. Written in Go, it compiles to a single, standalone binary. It's generally stateless except for the WebSocket connections and some in-memory caches.
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Communication with Mattermost clients and integrations mainly occurs through the RESTful JSON web API and WebSocket connections primarily used for event delivery.
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Data storage is done with MySQL or PostgreSQL for non-binary data. Files are stored locally, on network drives or in a service such as S3 or Minio.
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## Repository
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https://github.com/mattermost/mattermost
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## Server packages
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The server consists of several different Go packages:
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* `api4` - Version 4 of the RESTful JSON Web Service
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* `app` - Logic layer for getting, modifying, and interacting with models
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* `cmd` - Command line interface
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* `einterfaces` - Interfaces for Enterprise Edition features
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* `jobs` - Job server and scheduling
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* `model` - Definitions and helper functions for data models
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* `store` - Storage layer for interacting with caches and databases
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* `utils` - Utility functions for various tasks
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* `web` - Serves static pages
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