Documentation ¶
Overview ¶
Package micro is a pluggable framework for microservices
Index ¶
- Variables
- func NewContext(ctx context.Context, s Service) context.Context
- func RegisterHandler(s server.Server, h interface{}, opts ...server.HandlerOption) error
- func RegisterSubscriber(topic string, s server.Server, h interface{}, opts ...server.SubscriberOption) error
- type Function
- type Option
- func Action(a func(*cli.Context)) Option
- func AfterStart(fn func() error) Option
- func AfterStop(fn func() error) Option
- func BeforeStart(fn func() error) Option
- func BeforeStop(fn func() error) Option
- func Broker(b broker.Broker) Option
- func Client(c client.Client) Option
- func Cmd(c cmd.Cmd) Option
- func Context(ctx context.Context) Option
- func Flags(flags ...cli.Flag) Option
- func Metadata(md map[string]string) Option
- func Name(n string) Option
- func RegisterInterval(t time.Duration) Option
- func RegisterTTL(t time.Duration) Option
- func Registry(r registry.Registry) Option
- func Selector(s selector.Selector) Option
- func Server(s server.Server) Option
- func Transport(t transport.Transport) Option
- func Version(v string) Option
- func WrapCall(w ...client.CallWrapper) Option
- func WrapClient(w ...client.Wrapper) Option
- func WrapHandler(w ...server.HandlerWrapper) Option
- func WrapSubscriber(w ...server.SubscriberWrapper) Option
- type Options
- type Publisher
- type Service
Constants ¶
This section is empty.
Variables ¶
var (
HeaderPrefix = "Micro-"
)
Functions ¶
func NewContext ¶
NewContext returns a new Context with the Service embedded within it.
func RegisterHandler ¶
func RegisterHandler(s server.Server, h interface{}, opts ...server.HandlerOption) error
RegisterHandler is syntactic sugar for registering a handler
func RegisterSubscriber ¶
func RegisterSubscriber(topic string, s server.Server, h interface{}, opts ...server.SubscriberOption) error
RegisterSubscriber is syntactic sugar for registering a subscriber
Types ¶
type Function ¶
type Function interface { // Inherits Service interface Service // Done signals to complete execution Done() error // Handle registers an RPC handler Handle(v interface{}) error // Subscribe registers a subscriber Subscribe(topic string, v interface{}) error }
Function is a one time executing Service
func NewFunction ¶
NewFunction returns a new Function for a one time executing Service
type Option ¶
type Option func(*Options)
func AfterStart ¶
func BeforeStart ¶
func BeforeStop ¶
func Context ¶
Context specifies a context for the service. Can be used to signal shutdown of the service. Can be used for extra option values.
func RegisterInterval ¶
RegisterInterval specifies the interval on which to re-register
func RegisterTTL ¶
RegisterTTL specifies the TTL to use when registering the service
func WrapCall ¶
func WrapCall(w ...client.CallWrapper) Option
WrapCall is a convenience method for wrapping a Client CallFunc
func WrapClient ¶
WrapClient is a convenience method for wrapping a Client with some middleware component. A list of wrappers can be provided. Wrappers are applied in reverse order so the last is executed first.
func WrapHandler ¶
func WrapHandler(w ...server.HandlerWrapper) Option
WrapHandler adds a handler Wrapper to a list of options passed into the server
func WrapSubscriber ¶
func WrapSubscriber(w ...server.SubscriberWrapper) Option
WrapSubscriber adds a subscriber Wrapper to a list of options passed into the server
type Options ¶
type Options struct { Broker broker.Broker Cmd cmd.Cmd Client client.Client Server server.Server Registry registry.Registry Transport transport.Transport // Before and After funcs BeforeStart []func() error BeforeStop []func() error AfterStart []func() error AfterStop []func() error // Other options for implementations of the interface // can be stored in a context Context context.Context }
type Publisher ¶
type Publisher interface {
Publish(ctx context.Context, msg interface{}, opts ...client.PublishOption) error
}
Publisher is syntactic sugar for publishing
type Service ¶
type Service interface { Init(...Option) Options() Options Client() client.Client Server() server.Server Run() error String() string }
Service is an interface that wraps the lower level libraries within go-micro. Its a convenience method for building and initialising services.
func FromContext ¶
FromContext retrieves a Service from the Context.
func NewService ¶
NewService creates and returns a new Service based on the packages within.