userver-framework/userver

Health v2 · maintenance only

Adoption not part of the score

2982 stars · 409 forks observed · 2026-10-10

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

userver is a production-ready open-source C++ asynchronous framework with coroutines for building microservices, services, and utilities. It provides transparent efficient I/O, async drivers for databases and protocols, and high-level components for caches, logging, tracing, and metrics.

Use cases

• build high-performance C++ microservices
• serve HTTP APIs with async coroutines in C++
• access PostgreSQL, MongoDB, or Redis asynchronously from C++
• build gRPC clients and servers in C++
• consume Kafka or AMQP messages in a C++ service
• implement distributed locking and caching in C++ services
• write high-availability backend services with deadline propagation

When to choose

• you need a production-grade async C++ framework for I/O-bound services
• you want built-in drivers for many databases and protocols in one framework
• you need on-the-fly configuration, metrics, tracing, and congestion control out of the box
• you want to avoid callback-heavy code via coroutines

When to avoid

• your project is not in C++ or C++20
• you need a simple synchronous web server with minimal dependencies
• you prefer lightweight single-purpose libraries over a full framework
• your team cannot invest in learning a large framework's abstractions

Facets

framework · maturity stable

web-framework http-server http-client database-driver websocket rpc caching logging tracing monitoring concurrency message-queue serialization middleware routing testing configuration-management web-development backend microservices databases developer-tools cpp cross-platform coroutines async-io grpc postgresql mongodb redis kafka high-availability microservices-framework deadline-propagation linux macos docker

Member repositories

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