README

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Go Micro is a framework for microservices development.

Overview

Go Micro provides the core requirements for distributed systems development including RPC and Event driven communication. The Micro philosophy is sane defaults with a pluggable architecture. We provide defaults to get you started quickly but everything can be easily swapped out.

Features

Go Micro abstracts away the details of distributed systems. Here are the main features.

  • Authentication - Auth is built in as a first class citizen. Authentication and authorization enable secure zero trust networking by providing every service an identity and certificates. This additionally includes rule based access control.

  • 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, file, etcd. You can merge the sources and even define fallbacks.

  • Data Storage - A simple data store interface to read, write and delete records. It includes support for memory, file and CockroachDB by default. State and persistence becomes a core requirement beyond prototyping and Micro looks to build that into the framework.

  • Service Discovery - Automatic service registration and name resolution. Service discovery is at the core of micro service development. When service A needs to speak to service B it needs the location of that service. The default discovery mechanism is multicast DNS (mdns), a zeroconf system.

  • Load Balancing - Client side load balancing built on service discovery. Once we have the addresses of any number of instances of a service we now need a way to decide which node to route to. We use random hashed load balancing to provide even distribution across the services and retry a different node if there's a problem.

  • 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. This includes protobuf and json by default.

  • gRPC Transport - gRPC based request/response with support for bidirectional streaming. We provide an abstraction for synchronous communication. A request made to a service will be automatically resolved, load balanced, dialled and streamed.

  • Async Messaging - PubSub 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. The default messaging system is a HTTP event message broker.

  • 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.

  • Pluggable Interfaces - Go Micro makes use of Go interfaces for each distributed system abstraction. Because of this these interfaces are pluggable and allows Go Micro to be runtime agnostic. You can plugin any underlying technology. Find plugins in github.com/micro/go-plugins.

Getting Started

See pkg.go.dev for usage.

License

Go Micro is Apache 2.0 licensed.

Documentation

The Go Gopher

There is no documentation for this package.

Source Files

Directories

Path Synopsis
api
handler
Package handler provides http handlers
Package handler provides http handlers
handler/api
Package api provides an http-rpc handler which provides the entire http request over rpc
Package api provides an http-rpc handler which provides the entire http request over rpc
handler/event
Package event provides a handler which publishes an event
Package event provides a handler which publishes an event
handler/http
Package http is a http reverse proxy handler
Package http is a http reverse proxy handler
handler/rpc
Package rpc is a go-micro rpc handler.
Package rpc is a go-micro rpc handler.
handler/web
Package web contains the web handler including websocket support
Package web contains the web handler including websocket support
resolver
Package resolver resolves a http request to an endpoint
Package resolver resolves a http request to an endpoint
resolver/grpc
Package grpc resolves a grpc service like /greeter.Say/Hello to greeter service
Package grpc resolves a grpc service like /greeter.Say/Hello to greeter service
resolver/host
Package host resolves using http host
Package host resolves using http host
resolver/path
Package path resolves using http path
Package path resolves using http path
resolver/subdomain
Package subdomain is a resolver which uses the subdomain to determine the domain to route to.
Package subdomain is a resolver which uses the subdomain to determine the domain to route to.
resolver/vpath
Package vpath resolves using http path and recognised versioned urls
Package vpath resolves using http path and recognised versioned urls
router
Package router provides api service routing
Package router provides api service routing
router/registry
Package registry provides a dynamic api service router
Package registry provides a dynamic api service router
server
Package server provides an API gateway server which handles inbound requests
Package server provides an API gateway server which handles inbound requests
server/acme
Package acme abstracts away various ACME libraries
Package acme abstracts away various ACME libraries
server/acme/autocert
Package autocert is the ACME provider from golang.org/x/crypto/acme/autocert This provider does not take any config.
Package autocert is the ACME provider from golang.org/x/crypto/acme/autocert This provider does not take any config.
server/acme/certmagic
Package certmagic is the ACME provider from github.com/caddyserver/certmagic
Package certmagic is the ACME provider from github.com/caddyserver/certmagic
server/http
Package http provides a http server with features; acme, cors, etc
Package http provides a http server with features; acme, cors, etc
Package auth provides authentication and authorization capability
Package auth provides authentication and authorization capability
jwt
Package jwt is a jwt implementation of the auth interface
Package jwt is a jwt implementation of the auth interface
Package broker is an interface used for asynchronous messaging
Package broker is an interface used for asynchronous messaging
http
Package http provides a http based message broker
Package http provides a http based message broker
memory
Package memory provides a memory broker
Package memory provides a memory broker
Package build is for building source into a package
Package build is for building source into a package
docker
Package docker builds docker images
Package docker builds docker images
golang
Package golang is a go package manager
Package golang is a go package manager
tar
Package tar basically tarballs source code
Package tar basically tarballs source code
Package cache is a caching interface
Package cache is a caching interface
memory
Package memory is an in memory cache
Package memory is an in memory cache
Package client is an interface for an RPC client
Package client is an interface for an RPC client
grpc
Package grpc provides a gRPC client Package grpc provides a gRPC options
Package grpc provides a gRPC client Package grpc provides a gRPC options
mucp
Package mucp provides a transport agnostic RPC client
Package mucp provides a transport agnostic RPC client
Package codec is an interface for encoding messages
Package codec is an interface for encoding messages
bytes
Package bytes provides a bytes codec which does not encode or decode anything
Package bytes provides a bytes codec which does not encode or decode anything
grpc
Package grpc provides a grpc codec
Package grpc provides a grpc codec
json
Package json provides a json codec
Package json provides a json codec
jsonrpc
Package jsonrpc provides a json-rpc 1.0 codec
Package jsonrpc provides a json-rpc 1.0 codec
proto
Package proto provides a proto codec
Package proto provides a proto codec
protorpc
Protorpc provides a net/rpc proto-rpc codec.
Protorpc provides a net/rpc proto-rpc codec.
text
Package text reads any text/* content-type
Package text reads any text/* content-type
Package config is an interface for dynamic configuration.
Package config is an interface for dynamic configuration.
env
Package env provides config from environment variables
Package env provides config from environment variables
Package debug provides interfaces for service debugging
Package debug provides interfaces for service debugging
log
Package log provides debug logging
Package log provides debug logging
log/kubernetes
Package kubernetes is a logger implementing (github.com/micro/go-micro/v3/debug/log).Log
Package kubernetes is a logger implementing (github.com/micro/go-micro/v3/debug/log).Log
log/memory
Package memory provides an in memory log buffer
Package memory provides an in memory log buffer
profile
Package profile is for profilers
Package profile is for profilers
profile/http
Package http enables the http profiler
Package http enables the http profiler
profile/pprof
Package pprof provides a pprof profiler which writes output to /tmp/[name].{cpu,mem}.pprof
Package pprof provides a pprof profiler which writes output to /tmp/[name].{cpu,mem}.pprof
stats
Package stats provides runtime stats
Package stats provides runtime stats
trace
Package trace provides an interface for distributed tracing
Package trace provides an interface for distributed tracing
Package errors provides a way to return detailed information for an RPC request error.
Package errors provides a way to return detailed information for an RPC request error.
Package events is for event streaming and storage
Package events is for event streaming and storage
Package log provides a log interface
Package log provides a log interface
Package metadata is a way of defining message headers
Package metadata is a way of defining message headers
Package metrics is for instrumentation and debugging
Package metrics is for instrumentation and debugging
Package model is an interface for data modelling
Package model is an interface for data modelling
mud
Package mud is the micro data model implementation
Package mud is the micro data model implementation
sql
Package sql is the micro data model implementation
Package sql is the micro data model implementation
Package network is for creating internetworks
Package network is for creating internetworks
resolver
Package resolver resolves network names to addresses
Package resolver resolves network names to addresses
resolver/dns
Package dns resolves names to dns records
Package dns resolves names to dns records
resolver/dnssrv
Package dns srv resolves names to dns srv records
Package dns srv resolves names to dns srv records
resolver/http
Package http resolves names to network addresses using a http request
Package http resolves names to network addresses using a http request
resolver/noop
Package noop is a noop resolver
Package noop is a noop resolver
resolver/registry
Package registry resolves names using the go-micro registry
Package registry resolves names using the go-micro registry
resolver/static
Package static is a static resolver
Package static is a static resolver
transport
Package transport is an interface for synchronous connection based communication
Package transport is an interface for synchronous connection based communication
transport/grpc
Package grpc provides a grpc transport
Package grpc provides a grpc transport
transport/memory
Package memory is an in-memory transport
Package memory is an in-memory transport
tunnel
Package tunnel provides gre network tunnelling
Package tunnel provides gre network tunnelling
tunnel/broker
Package broker is a tunnel broker
Package broker is a tunnel broker
tunnel/transport
Package transport provides a tunnel transport
Package transport provides a tunnel transport
Package proxy is a transparent proxy built on the go-micro/server Package proxy is a transparent proxy built on the go-micro/server
Package proxy is a transparent proxy built on the go-micro/server Package proxy is a transparent proxy built on the go-micro/server
grpc
Package grpc is a grpc proxy built for the go-micro/server
Package grpc is a grpc proxy built for the go-micro/server
http
Package http provides a micro rpc to http proxy
Package http provides a micro rpc to http proxy
mucp
Package mucp transparently forwards the incoming request using a go-micro client.
Package mucp transparently forwards the incoming request using a go-micro client.
Package registry is an interface for service discovery
Package registry is an interface for service discovery
cache
Package cache provides a registry cache
Package cache provides a registry cache
mdns
Package mdns provides a multicast dns registry
Package mdns provides a multicast dns registry
memory
Package memory provides an in-memory registry
Package memory provides an in-memory registry
noop
Package noop is a registry which does nothing
Package noop is a registry which does nothing
Package router provides a network routing control plane
Package router provides a network routing control plane
dns
kubernetes
Package kubernetes is a kubernetes router which uses the service name and network to route
Package kubernetes is a kubernetes router which uses the service name and network to route
mdns
Package mdns is an mdns router
Package mdns is an mdns router
static
Package static is a static router which returns the service name as the address + port
Package static is a static router which returns the service name as the address + port
Package runtime is a service runtime manager Package runtime is a service runtime manager
Package runtime is a service runtime manager Package runtime is a service runtime manager
kubernetes
Package kubernetes implements kubernetes micro runtime Package kubernetes taken from https://github.com/micro/go-micro/blob/master/debug/log/kubernetes/kubernetes.go There are some modifications compared to the other files as this package doesn't provide write functionality.
Package kubernetes implements kubernetes micro runtime Package kubernetes taken from https://github.com/micro/go-micro/blob/master/debug/log/kubernetes/kubernetes.go There are some modifications compared to the other files as this package doesn't provide write functionality.
local/process
Package process executes a binary
Package process executes a binary
local/process/os
Package os runs processes locally Package os runs processes locally
Package os runs processes locally Package os runs processes locally
local/source
Package source retrieves source code
Package source retrieves source code
local/source/go
Package golang is a source for Go
Package golang is a source for Go
local/test/bar
Package main is used to test the local runtime, specifically the entrypoint function
Package main is used to test the local runtime, specifically the entrypoint function
local/test/cmd/test
Package main is used to test the local runtime, specifically the entrypoint function
Package main is used to test the local runtime, specifically the entrypoint function
local/test/foo/cmd/bar
Package main is used to test the local runtime, specifically the entrypoint function
Package main is used to test the local runtime, specifically the entrypoint function
local/test/foo/cmd/baz
Package main is used to test the local runtime, specifically the entrypoint function
Package main is used to test the local runtime, specifically the entrypoint function
Package selector is for node selection and load balancing
Package selector is for node selection and load balancing
Package server is an interface for a micro server
Package server is an interface for a micro server
grpc
Package grpc provides a grpc server
Package grpc provides a grpc server
mucp
Package mucp provides a transport agnostic RPC server
Package mucp provides a transport agnostic RPC server
Package service encapsulates the client, server and other interfaces to provide a complete micro service.
Package service encapsulates the client, server and other interfaces to provide a complete micro service.
mucp
Package mucp initialises a mucp service
Package mucp initialises a mucp service
Package store is an interface for distributed data storage.
Package store is an interface for distributed data storage.
file
Package local is a file system backed store
Package local is a file system backed store
memory
Package memory is a in-memory store store
Package memory is a in-memory store store
s3
Package sync is an interface for distributed synchronization
Package sync is an interface for distributed synchronization
memory
Package memory provides a sync.Mutex implementation of the lock for local use
Package memory provides a sync.Mutex implementation of the lock for local use
util
backoff
Package backoff provides backoff functionality
Package backoff provides backoff functionality
buf
ctx
io
Package io is for io management
Package io is for io management
jitter
Package jitter provides a random jitter
Package jitter provides a random jitter
kubernetes/client
Package client provides an implementation of a restricted subset of kubernetes API client
Package client provides an implementation of a restricted subset of kubernetes API client
log
Package log is a global internal logger DEPRECATED: this is frozen package, use github.com/micro/go-micro/v3/logger
Package log is a global internal logger DEPRECATED: this is frozen package, use github.com/micro/go-micro/v3/logger
net
pki
Package pki provides PKI all the PKI functions necessary to run micro over an untrusted network including a CA
Package pki provides PKI all the PKI functions necessary to run micro over an untrusted network including a CA
plugin
Package plugin provides the ability to load plugins Package plugin provides the ability to load plugins
Package plugin provides the ability to load plugins Package plugin provides the ability to load plugins
pool
Package pool is a connection pool
Package pool is a connection pool
qson
Package qson implmenets decoding of URL query params into JSON and Go values (using JSON struct tags).
Package qson implmenets decoding of URL query params into JSON and Go values (using JSON struct tags).
ring
Package ring provides a simple ring buffer for storing local data
Package ring provides a simple ring buffer for storing local data
socket
Package socket provides a pseudo socket
Package socket provides a pseudo socket
stream
Package stream encapsulates streams within streams
Package stream encapsulates streams within streams
sync
Package syncs will sync multiple stores
Package syncs will sync multiple stores
tls