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Micro
Micro is a standard library for microservices.
Overview
Micro provides the core requirements for distributed systems development including SYNC and ASYNC communication.
Features
Micro abstracts away the details of distributed systems. Main features:
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Dynamic Config - Load and hot reload dynamic config from anywhere. The config interface provides a way to load application level config from any source such as env vars, cmdline, file, consul, vault, etc... You can merge the sources and even define fallbacks.
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Data Storage - A simple data store interface to read, write and delete records. It includes support for memory, file and s3. State and persistence becomes a core requirement beyond prototyping and Micro looks to build that into the framework.
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Service Discovery - Automatic service registration and name resolution. Service discovery is at the core of micro service development.
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Message Encoding - Dynamic message encoding based on content-type. The client and server will use codecs along with content-type to seamlessly encode and decode Go types for you. Any variety of messages could be encoded and sent from different clients. The client and server handle this by default.
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Async Messaging - Pub/Sub is built in as a first class citizen for asynchronous communication and event driven architectures. Event notifications are a core pattern in micro service development.
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Synchronization - Distributed systems are often built in an eventually consistent manner. Support for distributed locking and leadership are built in as a Sync interface. When using an eventually consistent database or scheduling use the Sync interface.
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Pluggable Interfaces - Micro makes use of Go interfaces for each system abstraction. Because of this these interfaces are pluggable and allows Micro to be runtime agnostic.
License
Micro is Apache 2.0 licensed.