yarpc: go.uber.org/yarpc Index | Examples | Files | Directories

package yarpc

import "go.uber.org/yarpc"

Package yarpc provides the YARPC service framework.

With hundreds to thousands of services communicating with RPC, transport protocols (like HTTP and TChannel), encoding protocols (like JSON or Thrift), and peer choosers are the concepts that vary year over year. Separating these concerns allows services to change transports and wire protocols without changing call sites or request handlers, build proxies and wire protocol bridges, or experiment with load balancing strategies. YARPC is a toolkit for services and proxies.

YARPC breaks RPC into interchangeable encodings, transports, and peer choosers. YARPC for Go provides reference implementations for HTTP/1.1, TChannel and gRPC transports, and also raw, JSON, Thrift, and Protobuf encodings. YARPC for Go provides a round robin peer chooser and experimental implementations for debug pages and rate limiting. YARPC for Go plans to provide a load balancer that uses a least-pending-requests strategy. Peer choosers can implement any strategy, including load balancing or sharding, in turn bound to any peer list updater.

Regardless of transport, every RPC has some common properties: caller name, service name, procedure name, encoding name, deadline or TTL, headers, baggage (multi-hop headers), and tracing. Each RPC can also have an optional shard key, routing key, or routing delegate for advanced routing. YARPC transports use a shared API for capturing RPC metadata, so middleware can apply to requests over any transport.

Each YARPC transport protocol can implement inbound handlers and outbound callers. Each of these can support different RPC types, like unary (request and response) or oneway (request and receipt) RPC. A future release of YARPC will add support for other RPC types including variations on streaming and pubsub.

Index

Examples

Package Files

ack.go call.go client_config.go config.go dispatcher.go dispatcher_startup.go doc.go errors.go header.go inject.go introspection.go middleware.go router.go tracing.go version.go

Constants

const Version = "1.35.2-dev"

Version is the current version of YARPC.

Variables

var OpentracingTags = opentracing.Tags{
    "yarpc.version": Version,
    "go.version":    runtime.Version(),
}

OpentracingTags are tags with YARPC metadata.

var PackageVersions = []introspection.PackageVersion{
    {Name: "yarpc", Version: Version},
    {Name: "tchannel", Version: tchannel.VersionInfo},
    {Name: "thriftrw", Version: thriftrw.Version},
    {Name: "go", Version: runtime.Version()},
}

PackageVersions is a list of packages with corresponding versions.

func CanonicalizeHeaderKey Uses

func CanonicalizeHeaderKey(k string) string

CanonicalizeHeaderKey canonicalizes the given header key to the same form used by the headers map returned by ResponseHeaders.

var headers map[string]string
res, err := client.Call(ctx, "hello", requestBody, ResponseHeaders(&headers))
email, ok := headers[CanonicalizeHeaderKey("User-Email-Address")]

func InjectClients Uses

func InjectClients(src transport.ClientConfigProvider, dest interface{})

InjectClients injects clients from a Dispatcher into the given struct. dest must be a pointer to a struct with zero or more exported fields which hold YARPC client types. This includes json.Client, raw.Client, and any generated Thrift service client. Fields with nil values and a `service` tag will be populated with clients using that service`s ClientConfig.

Given,

type Handler struct {
	KeyValueClient keyvalueclient.Interface `service:"keyvalue"`
	UserClient json.Client `service:"users"`
	TagClient tagclient.Interface  // no tag; will be left unchanged
}

The call,

var h Handler
yarpc.InjectClients(dispatcher, &h)

Is equivalent to,

var h Handler
h.KeyValueClient = keyvalueclient.New(dispatcher.ClientConfig("keyvalue"))
h.UserClient = json.New(dispatcher.ClientConfig("users"))

Builder functions for different client types may be registered using the RegisterClientBuilder function.

This function panics if a field with an unknown type and nil value has the `service` tag.

func IsBadRequestError Uses

func IsBadRequestError(err error) bool

IsBadRequestError returns true on an error returned by RPC clients if the request was rejected by YARPC because it was invalid.

res, err := client.Call(...)
if yarpc.IsBadRequestError(err) {
	fmt.Println("invalid request:", err)
}

Deprecated: use yarpcerrors.FromError(err).Code() == yarpcerrors.CodeInvalidArgument instead.

func IsTimeoutError Uses

func IsTimeoutError(err error) bool

IsTimeoutError returns true on an error returned by RPC clients if the given error is a TimeoutError.

res, err := client.Call(...)
if yarpc.IsTimeoutError(err) {
	fmt.Println("request timed out:", err)
}

Deprecated: use yarpcerrors.FromError(err).Code() == yarpcerrors.CodeDeadlineExceeded instead.

func IsUnexpectedError Uses

func IsUnexpectedError(err error) bool

IsUnexpectedError returns true on an error returned by RPC clients if the server panicked or failed with an unhandled error.

res, err := client.Call(...)
if yarpc.IsUnexpectedError(err) {
	fmt.Println("internal server error:", err)
}

Deprecated: use yarpcerrors.FromError(err).Code() == yarpcerrors.CodeInternal instead.

func OnewayInboundMiddleware Uses

func OnewayInboundMiddleware(mw ...middleware.OnewayInbound) middleware.OnewayInbound

OnewayInboundMiddleware combines the given collection of unary inbound middleware in-order into a single OnewayInbound middleware.

func OnewayOutboundMiddleware Uses

func OnewayOutboundMiddleware(mw ...middleware.OnewayOutbound) middleware.OnewayOutbound

OnewayOutboundMiddleware combines the given collection of unary outbound middleware in-order into a single OnewayOutbound middleware.

func RegisterClientBuilder Uses

func RegisterClientBuilder(f interface{}) (forget func())

RegisterClientBuilder registers a builder function for a specific client type.

Functions must have one of the following signatures:

func(transport.ClientConfig) T
func(transport.ClientConfig, reflect.StructField) T

Where T is the type of the client. T MUST be an interface. In the second form, the function receives type information about the field being filled. It may inspect the struct tags to customize its behavior.

This function panics if a client for the given type has already been registered.

After a builder function for a client type is registered, these objects can be instantiated automatically using InjectClients.

A function to unregister the builder function is returned. Note that the function will clear whatever the corresponding type's builder function is at the time it is called, regardless of whether the value matches what was passed to this function or not.

func StreamInboundMiddleware Uses

func StreamInboundMiddleware(mw ...middleware.StreamInbound) middleware.StreamInbound

StreamInboundMiddleware combines the given collection of unary inbound middleware in-order into a single StreamInbound middleware.

func StreamOutboundMiddleware Uses

func StreamOutboundMiddleware(mw ...middleware.StreamOutbound) middleware.StreamOutbound

StreamOutboundMiddleware combines the given collection of unary outbound middleware in-order into a single StreamOutbound middleware.

func UnaryInboundMiddleware Uses

func UnaryInboundMiddleware(mw ...middleware.UnaryInbound) middleware.UnaryInbound

UnaryInboundMiddleware combines the given collection of unary inbound middleware in-order into a single UnaryInbound middleware.

func UnaryOutboundMiddleware Uses

func UnaryOutboundMiddleware(mw ...middleware.UnaryOutbound) middleware.UnaryOutbound

UnaryOutboundMiddleware combines the given collection of unary outbound middleware in-order into a single UnaryOutbound middleware.

type Ack Uses

type Ack interface {
    fmt.Stringer
}

Ack represents an acknowledgement from a oneway request.

type Call Uses

type Call encoding.Call

Call provides information about the current request inside handlers. An instance of Call for the current request can be obtained by calling CallFromContext on the request context.

func Get(ctx context.Context, req *GetRequest) (*GetResponse, error) {
	call := yarpc.CallFromContext(ctx)
	fmt.Println("Received request from", call.Caller())
	if err := call.WriteResponseHeader("hello", "world"); err != nil {
		return nil, err
	}
	return response, nil
}

func CallFromContext Uses

func CallFromContext(ctx context.Context) *Call

CallFromContext retrieves information about the current incoming request from the given context. Returns nil if the context is not a valid request context.

The object is valid only as long as the request is ongoing.

func (*Call) Caller Uses

func (c *Call) Caller() string

Caller returns the name of the service making this request.

func (*Call) Encoding Uses

func (c *Call) Encoding() transport.Encoding

Encoding returns the encoding for this request.

func (*Call) Header Uses

func (c *Call) Header(k string) string

Header returns the value of the given request header provided with the request.

func (*Call) HeaderNames Uses

func (c *Call) HeaderNames() []string

HeaderNames returns a sorted list of the names of user defined headers provided with this request.

func (*Call) Procedure Uses

func (c *Call) Procedure() string

Procedure returns the name of the procedure being called.

func (*Call) RoutingDelegate Uses

func (c *Call) RoutingDelegate() string

RoutingDelegate returns the routing delegate for this request.

func (*Call) RoutingKey Uses

func (c *Call) RoutingKey() string

RoutingKey returns the routing key for this request.

func (*Call) Service Uses

func (c *Call) Service() string

Service returns the name of the service being called.

func (*Call) ShardKey Uses

func (c *Call) ShardKey() string

ShardKey returns the shard key for this request.

func (*Call) Transport Uses

func (c *Call) Transport() string

Transport returns the name of the transport being called.

func (*Call) WriteResponseHeader Uses

func (c *Call) WriteResponseHeader(k, v string) error

WriteResponseHeader writes headers to the response of this call.

type CallOption Uses

type CallOption encoding.CallOption

CallOption defines options that may be passed in at call sites to other services.

These may be used to add or alter the request.

func ResponseHeaders Uses

func ResponseHeaders(h *map[string]string) CallOption

ResponseHeaders specifies that headers received in response to this request should replace the given map.

Header keys in the map are normalized using the CanonicalizeHeaderKey function.

var resHeaders map[string]string
resBody, err := client.SetValue(ctx, key, value, yarpc.ResponseHeaders(&resHeaders))
value, ok := resHeaders[yarpc.CanonicalizeHeaderKey("foo")]

Note that the map is replaced completely. Entries it had before making the call will not be available afterwards.

headers := map[string]string{"hello": "world"}
resBody, err := client.SetValue(ctx, key, value, yarpc.ResponseHeaders(&headers))
_, ok := headers["hello"]
fmt.Println(ok)  // false

func WithHeader Uses

func WithHeader(k, v string) CallOption

WithHeader adds a new header to the request. Header keys are case insensitive.

_, err := client.GetValue(ctx, reqBody, yarpc.WithHeader("Token", "10"))
// ==> {"token": "10"}

If multiple entries have the same normalized header name, newer entries override older ones.

func WithRoutingDelegate Uses

func WithRoutingDelegate(rd string) CallOption

WithRoutingDelegate sets the routing delegate for the request.

func WithRoutingKey Uses

func WithRoutingKey(rk string) CallOption

WithRoutingKey sets the routing key for the request.

func WithShardKey Uses

func WithShardKey(sk string) CallOption

WithShardKey sets the shard key for the request.

type ClientConfig Uses

type ClientConfig interface {
    transport.ClientConfigProvider
}

ClientConfig builds transport.ClientConfigs which specify the means of making a request from this service to another service by name.

type Config Uses

type Config struct {
    // Name of the service. This is the name used by other services when
    // making requests to this service.
    Name string

    // Inbounds define how this service receives incoming requests from other
    // services.
    //
    // This may be nil if this service does not receive any requests.
    Inbounds Inbounds

    // Outbounds defines how this service makes requests to other services.
    //
    // This may be nil if this service does not send any requests.
    Outbounds Outbounds

    // Inbound and Outbound Middleware that will be applied to all incoming
    // and outgoing requests respectively.
    //
    // These may be nil if there is no middleware to apply.
    InboundMiddleware  InboundMiddleware
    OutboundMiddleware OutboundMiddleware

    // Tracer is meant to add/record tracing information to a request.
    //
    // Deprecated: The dispatcher does nothing with this property.  Set the
    // tracer directly on the transports used to build inbounds and outbounds.
    Tracer opentracing.Tracer

    // RouterMiddleware is middleware to control how requests are routed.
    RouterMiddleware middleware.Router

    // Configures logging.
    Logging LoggingConfig

    // Configures telemetry.
    Metrics MetricsConfig

    // DisableAutoObservabilityMiddleware is used to stop the dispatcher from
    // automatically attaching observability middleware to all inbounds and
    // outbounds.  It is the assumption that if if this option is disabled the
    // observability middleware is being inserted in the Inbound/Outbound
    // Middleware.
    DisableAutoObservabilityMiddleware bool
}

Config specifies the parameters of a new Dispatcher constructed via NewDispatcher.

type Dispatcher Uses

type Dispatcher struct {
    // contains filtered or unexported fields
}

Dispatcher encapsulates a YARPC application. It acts as the entry point to send and receive YARPC requests in a transport and encoding agnostic way.

Code:

dispatcher := yarpc.NewDispatcher(yarpc.Config{Name: "myFancyService"})
if err := dispatcher.Start(); err != nil {
    log.Fatal(err)
}
defer dispatcher.Stop()

func NewDispatcher Uses

func NewDispatcher(cfg Config) *Dispatcher

NewDispatcher builds a new Dispatcher using the specified Config. At minimum, a service name must be specified.

Invalid configurations or errors in constructing the Dispatcher will cause panics.

func (*Dispatcher) ClientConfig Uses

func (d *Dispatcher) ClientConfig(outboundKey string) transport.ClientConfig

ClientConfig provides the configuration needed to talk to the given service through an outboundKey. This configuration may be directly passed into encoding-specific RPC clients.

keyvalueClient := json.New(dispatcher.ClientConfig("keyvalue"))

This function panics if the outboundKey is not known.

func (*Dispatcher) InboundMiddleware Uses

func (d *Dispatcher) InboundMiddleware() InboundMiddleware

InboundMiddleware returns the middleware applied to all inbound handlers. Router middleware and fallback handlers can use the InboundMiddleware to wrap custom handlers.

func (*Dispatcher) Inbounds Uses

func (d *Dispatcher) Inbounds() Inbounds

Inbounds returns a copy of the list of inbounds for this RPC object.

The Inbounds will be returned in the same order that was used in the configuration.

func (*Dispatcher) Introspect Uses

func (d *Dispatcher) Introspect() introspection.DispatcherStatus

Introspect returns detailed information about the dispatcher. This function acquires a lots of locks throughout and should only be called with some reserve. This method is public merely for use by the package yarpcmeta. The result of this function is internal to yarpc anyway.

func (*Dispatcher) MustOutboundConfig Uses

func (d *Dispatcher) MustOutboundConfig(outboundKey string) *transport.OutboundConfig

MustOutboundConfig provides the configuration needed to talk to the given service through an outboundKey. This configuration may be directly passed into encoding-specific RPC clients.

keyvalueClient := json.New(dispatcher.MustOutboundConfig("keyvalue"))

This function panics if the outboundKey is not known.

func (*Dispatcher) Name Uses

func (d *Dispatcher) Name() string

Name returns the name of the dispatcher.

func (*Dispatcher) OutboundConfig Uses

func (d *Dispatcher) OutboundConfig(outboundKey string) (oc *transport.OutboundConfig, ok bool)

OutboundConfig provides the configuration needed to talk to the given service through an outboundKey. This configuration may be directly passed into encoding-specific RPC clients.

 outboundConfig, ok := dispatcher.OutboundConfig("keyvalue")
 if !ok {
   // do something
 }
	keyvalueClient := json.New(outboundConfig)

func (*Dispatcher) Outbounds Uses

func (d *Dispatcher) Outbounds() Outbounds

Outbounds returns a copy of the list of outbounds for this RPC object.

func (*Dispatcher) PhasedStart Uses

func (d *Dispatcher) PhasedStart() (*PhasedStarter, error)

PhasedStart is a more granular alternative to Start, and is intended only for advanced users. Rather than starting all transports, inbounds, and outbounds at once, it lets the user start them separately.

Start and PhasedStart are mutually exclusive. If Start is called first, PhasedStart is a no-op and returns the same error (if any) that Start returned. If PhasedStart is called first, Start is a no-op and always returns a nil error; the caller is responsible for using the PhasedStarter to complete startup.

func (*Dispatcher) PhasedStop Uses

func (d *Dispatcher) PhasedStop() (*PhasedStopper, error)

PhasedStop is a more granular alternative to Stop, and is intended only for advanced users. Rather than stopping all inbounds, outbounds, and transports at once, it lets the user stop them separately.

Stop and PhasedStop are mutually exclusive. If Stop is called first, PhasedStop is a no-op and returns the same error (if any) that Stop returned. If PhasedStop is called first, Stop is a no-op and always returns a nil error; the caller is responsible for using the PhasedStopper to complete shutdown.

func (*Dispatcher) Register Uses

func (d *Dispatcher) Register(rs []transport.Procedure)

Register registers zero or more procedures with this dispatcher. Incoming requests to these procedures will be routed to the handlers specified in the given Procedures.

Code:

handler := func(ctx context.Context, key string) (string, error) {
    fmt.Println("key", key)
    return "value", nil
}

dispatcher.Register(json.Procedure("get", handler))

Code:

handler := func(ctx context.Context, data []byte) ([]byte, error) {
    return data, nil
}

dispatcher.Register(raw.Procedure("echo", handler))

func (*Dispatcher) Router Uses

func (d *Dispatcher) Router() transport.Router

Router returns the procedure router.

func (*Dispatcher) Start Uses

func (d *Dispatcher) Start() error

Start starts the Dispatcher, allowing it to accept and process new incoming requests. This starts all inbounds and outbounds configured on this Dispatcher.

This function returns immediately after everything has been started. Servers should add a `select {}` to block to process all incoming requests.

if err := dispatcher.Start(); err != nil {
	log.Fatal(err)
}
defer dispatcher.Stop()

select {}

Start and PhasedStart are mutually exclusive. See the PhasedStart documentation for details.

func (*Dispatcher) Stop Uses

func (d *Dispatcher) Stop() error

Stop stops the Dispatcher, shutting down all inbounds, outbounds, and transports. This function returns after everything has been stopped.

Stop and PhasedStop are mutually exclusive. See the PhasedStop documentation for details.

type InboundMiddleware Uses

type InboundMiddleware struct {
    Unary  middleware.UnaryInbound
    Oneway middleware.OnewayInbound
    Stream middleware.StreamInbound
}

InboundMiddleware contains the different types of inbound middlewares.

type Inbounds Uses

type Inbounds []transport.Inbound

Inbounds contains a list of inbound transports. Each inbound transport specifies a source through which incoming requests are received.

type LoggingConfig Uses

type LoggingConfig struct {
    // Supplies a logger for the dispatcher. By default, no logs are
    // emitted.
    Zap *zap.Logger
    // If supplied, ExtractContext is used to log request-scoped
    // information carried on the context (e.g., trace and span IDs).
    ContextExtractor func(context.Context) zapcore.Field
}

LoggingConfig describes how logging should be configured.

type MapRouter Uses

type MapRouter struct {
    // contains filtered or unexported fields
}

MapRouter is a Router that maintains a map of the registered procedures.

func NewMapRouter Uses

func NewMapRouter(defaultService string) MapRouter

NewMapRouter builds a new MapRouter that uses the given name as the default service name.

func (MapRouter) Choose Uses

func (m MapRouter) Choose(ctx context.Context, req *transport.Request) (transport.HandlerSpec, error)

Choose retrives the HandlerSpec for the service, procedure, and encoding noted on the transport request, or returns an unrecognized procedure error (testable with transport.IsUnrecognizedProcedureError(err)).

func (MapRouter) Procedures Uses

func (m MapRouter) Procedures() []transport.Procedure

Procedures returns a list procedures that have been registered so far.

func (MapRouter) Register Uses

func (m MapRouter) Register(rs []transport.Procedure)

Register registers the procedure with the MapRouter. If the procedure does not specify its service name, the procedure will inherit the default service name of the router. Procedures should specify their encoding, and multiple procedures with the same name and service name can exist if they handle different encodings. If a procedure does not specify an encoding, it can only support one handler. The router will select that handler regardless of the encoding.

type MetricsConfig Uses

type MetricsConfig struct {
    // Metrics is a *"go.uber.org/net/metrics".Scope for recording stats.
    // YARPC does not push these metrics; pushing metrics from the root is an
    // external concern.
    Metrics *metrics.Scope
    // Tally scope used for pushing to M3 or StatsD-based systems. By
    // default, metrics are collected in memory but not pushed.
    // TODO deprecate this option for metrics configuration.
    Tally tally.Scope
}

MetricsConfig describes how telemetry should be configured. Scope and Tally are exclusive; choose one. If neither is present, metrics are not recorded, all instrumentation becomes no-ops. If both are present, we emit a warning and ignore Tally. If a metrics scope is preseent, we use that scope to record metrics and they are not pushed to Tally. If Tally is present, we use its metrics scope and push them periodically.

type OutboundMiddleware Uses

type OutboundMiddleware struct {
    Unary  middleware.UnaryOutbound
    Oneway middleware.OnewayOutbound
    Stream middleware.StreamOutbound
}

OutboundMiddleware contains the different types of outbound middlewares.

type Outbounds Uses

type Outbounds map[string]transport.Outbounds

Outbounds provides access to outbounds for a remote service. Outbounds define how requests are sent from this service to the remote service.

type PhasedStarter Uses

type PhasedStarter struct {
    // contains filtered or unexported fields
}

PhasedStarter is a more granular alternative to the Dispatcher's all-in-one Start method. Rather than starting the transports, inbounds, and outbounds in one call, it lets the user choose when to trigger each phase of dispatcher startup. For details on the interaction of Start and phased startup, see the documentation for the Dispatcher's PhasedStart method.

The user of a PhasedStarter is responsible for correctly ordering startup: transports MUST be started before outbounds, which MUST be started before inbounds. Attempting startup in any other order will return an error.

func (*PhasedStarter) StartInbounds Uses

func (s *PhasedStarter) StartInbounds() error

StartInbounds is the final phase of startup. It starts all inbounds configured on the dispatcher, which allows any registered procedures to begin receiving requests. It's safe to call concurrently, but all calls after the first return an error.

func (*PhasedStarter) StartOutbounds Uses

func (s *PhasedStarter) StartOutbounds() error

StartOutbounds is the second phase of startup. It starts all outbounds configured on the dispatcher, which allows users of the dispatcher to construct clients and begin making outbound RPCs. It's safe to call concurrently, but all calls after the first return an error.

func (*PhasedStarter) StartTransports Uses

func (s *PhasedStarter) StartTransports() error

StartTransports is the first step in startup. It starts all transports configured on the dispatcher, which is a necessary precondition for making and receiving RPCs. It's safe to call concurrently, but all calls after the first return an error.

type PhasedStopper Uses

type PhasedStopper struct {
    // contains filtered or unexported fields
}

PhasedStopper is a more granular alternative to the Dispatcher's all-in-one Stop method. Rather than stopping the inbounds, outbounds, and transports in one call, it lets the user choose when to trigger each phase of dispatcher shutdown. For details on the interaction of Stop and phased shutdown, see the documentation for the Dispatcher's PhasedStop method.

The user of a PhasedStopper is responsible for correctly ordering shutdown: inbounds MUST be stopped before outbounds, which MUST be stopped before transports. Attempting shutdown in any other order will return an error.

func (*PhasedStopper) StopInbounds Uses

func (s *PhasedStopper) StopInbounds() error

StopInbounds is the first step in shutdown. It stops all inbounds configured on the dispatcher, which stops routing RPCs to all registered procedures. It's safe to call concurrently, but all calls after the first return an error.

func (*PhasedStopper) StopOutbounds Uses

func (s *PhasedStopper) StopOutbounds() error

StopOutbounds is the second step in shutdown. It stops all outbounds configured on the dispatcher, which stops clients from making outbound RPCs. It's safe to call concurrently, but all calls after the first return an error.

func (*PhasedStopper) StopTransports Uses

func (s *PhasedStopper) StopTransports() error

StopTransports is the final step in shutdown. It stops all transports configured on the dispatcher and cleans up any ancillary goroutines. It's safe to call concurrently, but all calls after the first return an error.

type RouterMiddleware Uses

type RouterMiddleware middleware.Router

RouterMiddleware wraps the Router middleware

type StreamOption Uses

type StreamOption encoding.StreamOption

StreamOption defines options that may be passed in at streaming function call sites.

These may be used to add or alter individual stream calls.

Directories

PathSynopsis
api/backoff
api/encodingPackage encoding provides APIs for encoding authors.
api/middleware
api/middleware/middlewaretestPackage middlewaretest is a generated GoMock package.
api/peerPackage peer contains interfaces pertaining to peers, peer lists, peer list updaters, and generally how to choose a peer for an outbound request.
api/peer/peertestPackage peertest is a generated GoMock package.
api/transport
api/transport/transporttestPackage transporttest is a generated GoMock package.
encoding/jsonPackage json provides the JSON encoding for YARPC.
encoding/protobufPackage protobuf implements Protocol Buffers encoding support for YARPC.
encoding/protobuf/protoc-gen-yarpc-goPackage main provides a protoc plugin that generates code for the protobuf encoding for YARPC.
encoding/protobuf/protoc-gen-yarpc-go/internal/libPackage lib contains the library code for protoc-gen-yarpc-go.
encoding/protobuf/reflectionPackage reflection exposes information about protobuf services required to implement the gRPC server reflection API and return information about the compatible registered yarpc services.
encoding/protobuf/testing
encoding/rawPackage raw provides the raw encoding for YARPC.
encoding/thriftPackage thrift implements Thrift encoding support for YARPC.
encoding/thrift/internal
encoding/thrift/thriftrw-plugin-yarpcthriftrw-plugin-yarpc implements a plugin for ThriftRW that generates code compatible with YARPC.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/atomic/readonlystorefxPackage readonlystorefx provides better integration for Fx for services implementing or calling ReadOnlyStore.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/atomic/readonlystoretest
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/atomic/storefxPackage storefx provides better integration for Fx for services implementing or calling Store.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/atomic/storetest
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/baseserviceclient
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/baseservicefxPackage baseservicefx provides better integration for Fx for services implementing or calling BaseService.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/baseserviceserver
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/baseservicetest
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/emptyserviceclient
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/emptyservicefxPackage emptyservicefx provides better integration for Fx for services implementing or calling EmptyService.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/emptyserviceserver
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/emptyservicetest
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/extendemptyfxPackage extendemptyfx provides better integration for Fx for services implementing or calling ExtendEmpty.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/extendemptytest
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/extendonlyfxPackage extendonlyfx provides better integration for Fx for services implementing or calling ExtendOnly.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/common/extendonlytest
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/weather
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/weather/weatherclient
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/weather/weatherfxPackage weatherfx provides better integration for Fx for services implementing or calling Weather.
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/weather/weatherserver
encoding/thrift/thriftrw-plugin-yarpc/internal/tests/weather/weathertest
internal
internal/backoff
internal/bufferpoolPackage bufferpool maintains a pool of bytes.Buffers for use in encoding and transport implementations.
internal/clientconfig
internal/clockPackage clock provides swappable real and fake clocks.
internal/config
internal/covercover is a tool that runs `go test` with cross-package coverage on this repository, ignoring any packages that opt out of coverage with .nocover files.
internal/crossdock
internal/crossdock/client
internal/crossdock/client/apachethrift
internal/crossdock/client/ctxpropagation
internal/crossdock/client/dispatcher
internal/crossdock/client/echo
internal/crossdock/client/errorshttpclient
internal/crossdock/client/errorstchclient
internal/crossdock/client/gauntlet
internal/crossdock/client/googlegrpcclient
internal/crossdock/client/googlegrpcserver
internal/crossdock/client/grpc
internal/crossdock/client/headers
internal/crossdock/client/httpserver
internal/crossdock/client/oneway
internal/crossdock/client/onewayctxpropagation
internal/crossdock/client/params
internal/crossdock/client/random
internal/crossdock/client/tchclient
internal/crossdock/client/tchserver
internal/crossdock/client/timeout
internal/crossdock/internal
internal/crossdock/server
internal/crossdock/server/googlegrpc
internal/crossdock/server/http
internal/crossdock/server/oneway
internal/crossdock/server/tch
internal/crossdock/server/yarpc
internal/crossdock/thrift/echo
internal/crossdock/thrift/echo/echoclient
internal/crossdock/thrift/echo/echofxPackage echofx provides better integration for Fx for services implementing or calling Echo.
internal/crossdock/thrift/echo/echoserver
internal/crossdock/thrift/echo/echotest
internal/crossdock/thrift/gauntlet
internal/crossdock/thrift/gauntlet/secondserviceclient
internal/crossdock/thrift/gauntlet/secondservicefxPackage secondservicefx provides better integration for Fx for services implementing or calling SecondService.
internal/crossdock/thrift/gauntlet/secondserviceserver
internal/crossdock/thrift/gauntlet/secondservicetest
internal/crossdock/thrift/gauntlet/thrifttestclient
internal/crossdock/thrift/gauntlet/thrifttestfxPackage thrifttestfx provides better integration for Fx for services implementing or calling ThriftTest.
internal/crossdock/thrift/gauntlet/thrifttestserver
internal/crossdock/thrift/gauntlet/thrifttesttest
internal/crossdock/thrift/gen-go/echoPackage echo is generated code used to make or handle TChannel calls using Thrift.
internal/crossdock/thrift/gen-go/gauntlet_apache
internal/crossdock/thrift/gen-go/gauntlet_tchannelPackage gauntlet_tchannel is generated code used to make or handle TChannel calls using Thrift.
internal/crossdock/thrift/oneway
internal/crossdock/thrift/oneway/onewayclient
internal/crossdock/thrift/oneway/onewayfxPackage onewayfx provides better integration for Fx for services implementing or calling Oneway.
internal/crossdock/thrift/oneway/onewayserver
internal/crossdock/thrift/oneway/onewaytest
internal/digester
internal/errorsync
internal/examples/protobuf
internal/examples/protobuf/example
internal/examples/protobuf/examplepb
internal/examples/protobuf/exampleutil
internal/examples/streaming
internal/examples/streaming/client
internal/examples/streaming/server
internal/examples/thrift-keyvalue/keyvalue/server
internal/examples/thrift-oneway
internal/examples/thrift-oneway/sink
internal/examples/thrift-oneway/sink/helloclient
internal/examples/thrift-oneway/sink/hellofxPackage hellofx provides better integration for Fx for services implementing or calling Hello.
internal/examples/thrift-oneway/sink/helloserver
internal/examples/thrift-oneway/sink/hellotest
internal/grpcctxPackage grpcctx contains helper functionality for testing with grpc-go.
internal/humanize
internal/inboundmiddleware
internal/integrationtest
internal/interpolatePackage interpolate provides a generic mechanism to interpolate variables into strings.
internal/introspection
internal/iopool
internal/net
internal/observabilityPackage observability provides logging and metrics collection middleware for YARPC.
internal/outboundmiddleware
internal/protopluginPackage protoplugin provides utilities for protoc plugins.
internal/request
internal/routertest
internal/service-test
internal/shard
internal/testtimePackage testtime provides ways to scale time for tests running on CPU starved systems.
internal/testutils
internal/whitespace
internal/yarpcerrors
internal/yarpctest
peerPackage peer contains components for managing peers.
peer/hostport
peer/peerlistPackage peerlist is deprecated in favor of `go.uber.org/yarpc/peer/peerlist/v2` which can additionally convey peer list identifiers to the peerlist.Implementation without a wrapper type, allowing a peer list updater to communicate shard information for example.
peer/peerlist/v2Package peerlist provides a utility for managing peer availability with a separate implementation of peer selection from just among available peers.
peer/pendingheapPackage pendingheap provides an implementation of a peer list that sends traffic to the peer with the fewest pending requests, but degenerates to round robin when all peers have equal pending requests, using a heap.
peer/randpeer
peer/roundrobin
peer/tworandomchoicesPackage tworandomchoices provides a load balancer implementation that picks two peers at random and chooses the one with fewer pending requests.
peer/xPackage x contains experimental components.
peer/x/peerheap
peer/x/roundrobin
pkg/encodingPackage encoding contains helper functionality for encoding implementations.
pkg/errorsPackage errors contains helper functions for working with YARPC errors for encoding and transport implementations.
pkg/lifecyclePackage lifecycle provides a helper for objects that have a synchronized lifecycle from idle, through running, to stopped or errored, executing start and stop transitions exactly once.
pkg/lifecycletest
pkg/procedurePackage procedure contains utilities for handling procedure name mappings.
transportPackage transport implements the low level concerns of sending and receiving bytes.
transport/grpcPackage grpc implements a YARPC transport based on the gRPC protocol.
transport/httpPackage http implements a YARPC transport based on the HTTP/1.1 protocol.
transport/tchannelPackage tchannel implements a YARPC transport based on the TChannel protocol.
transport/tchannel/internal
xPackage x contains experimental components.
x/debug
x/yarpcmeta
x/yarpctest
x/yarpctest/apiPackage api is for all interfaces and patterns that need to be implemented to interact with the yarpctest api, but not the explicit types we'll use to make requests, or the types that we'll use directly in tests.
x/yarpctest/typesPackage types are for objects in the yarpctest API that implement multiple interfaces.
yarpcconfigPackage yarpcconfig implements a generic configuration system that may be used to build YARPC Dispatchers from configurations specified in different markup formats.
yarpcerrors
yarpcproto
yarpctestPackage yarpctest provides utilities to test YARPC services and clients.
yarpctest/recorderPackage recorder records & replay yarpc requests on the client side.

Package yarpc imports 33 packages (graph) and is imported by 118 packages. Updated 2018-11-15. Refresh now. Tools for package owners.