Go-Chassis is a microservice framework for rapid development of microservices in Go.
it focus on helping developer to deliver cloud native application more easily.
Why use Go chassis
- powerful middleware "handler chain":
powerful than "filter" or "interceptor".
each handler in chain is able to get the running result of backward handler and your business logic.
It is very useful in varies of scenario, for example:
- a circuit breaker need to check command results
- track response status and record it, so that prometheus can collect them
- track critical response result, so that you can audit them
- distribute tracing, you can complete the end span spec after business logic executed
the commonplace above is helping you decouple common function from business logic. without handler chain.
those function will couple with business logic
go chassis is designed as a protocol-independent framework, any protocol
is able to integrate with go chassis and leverage same function like load balancing,
circuit breaker,rate limiting, routing management, those function resilient your service
go chassis makes service observable by bringing open tracing and prometheus to it.
go chassis is flexible, many different modules can be replaced by other implementation,
like registry, metrics, handler chain, config server etc
With many build-in function like route management, circuit breaker, load balancing, monitoring etc,
your don't need to investigate, implement and integrate many solutions yourself.
go chassis supports Istio control panel, go chassis can bring better performance to go program,
you can use Istio configurations to control go chassis.
Pluggable discovery service: Support Service center, istio pilot, kubernetes registry.
fit both client side discovery and server side discovery pattern,
and you can disable it in local to test service easily
You can customize protocol, by default support http and grpc, go chassis define standardized model to makes all request of different protocol leverage same features
Multiple server management: you can separate API by protocols and ports
Handler Chain: Able to add your own code during service calling for client and server side
rich middleware: based on handler chain, supply circuit breaker, rate limiting, monitoring, auth features. see
Traffic marker Traffic marker module is able to mark requests in both client(consumer) or server(provider) side,
with marker, you can govern traffic based on it.
Traffic management: Able to route to different service based on weight and match rule, it can be used in many scenario, such as canary release
Security: build in cipher, authentication, RSA related funtions
Safty and reslience: support fault-tolerant(with expotential backoff policy), rate limiting, client-side load-balancing, circuit breaker to makes your service facing any unpredictable situation.
Metrics: Able to expose Prometheus metric API automatically and customize metrics reporter
Tracing:Use opentracing-go as standard library, easy to integrate tracing system
Logger: You can custom your own writer to sink log, by default support file and stdout
Hot re-configuration: Powered by go-archaius, configurations can be reload in runtime, like load balancing, circuit breaker, rate limiting, developer is also able to develop a service which has hot-reconfiguration feature easily. see
Open API 2.0 native support go chassis will automatically generate Open API 2.0 doc and register it to service center. you can manage all the API docs in one place
Spring Cloud integrate with servicecomb, go chassis can work together with spring cloud.
Service mesh: you can introduce multi-language to your microservice system. powered by servicecomb-mesher.
You can check plugins to see more features
1.Generate go mod
2.Add go chassis
go get email@example.com
if you are facing network issue
3.Write your first http micro service
You can see more documentations in here,
You can check examples here
NOTICE: Now examples is migrating to here
Go-Chassis supports 3 types of communication protocol.
- Rest - REST is an approach that leverages the HTTP protocol for communication.
- Highway - This is a RPC communication protocol, it was deprecated.
- grpc - native grpc protocol, go chassis bring circuit breaker, route management etc to grpc.
Debug suggestion for dlv:
-tags debug into go build arguments before debugging, if your go version is go1.10 onward.
go build -tags debug -o server -gcflags "all=-N -l" server.go
debug tag to resolve dlv debug issue:
this part introduce some eco systems that go chassis can run with
With ServiceComb service center as registry, go chassis supply more features like contract management
and multiple service registry,
highly recommended. that will not prevent you from using kubernetes or Istio,
Because service center can aggregate heterogeneous registry
and give you a unified service registry entry point.
Kubernetes and Istio
go chassis has k8s registry and Istio registry plugins, and support Istio traffic management
you can use spring cloud or Envoy with go chassis under same service discovery service.
Other project using go-chassis
To register your self, go to https://github.com/go-chassis/go-chassis/issues/592
To start developing go chassis
Install go 1.12+
Clone the project
git clone firstname.lastname@example.org:go-chassis/go-chassis.git
- Download vendors
go mod download
go mod vendor
NOTICE：if you do not use mod, We can not ensure you the compatibility.
however you can still maintain your own vendor,
which means you have to solve compiling issue your own.
- Install service-center
For more information about go chassis, read github wiki page