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Documentation

Index

• Constants
• Variables
• func GetOpencensusSpanContextFromContext(ctx context.Context) (*trace.SpanContext, error)
• func GetSpanContextFromContext(ctx context.Context) (opentracing.SpanContext, error)
• func RegisterCodec(t protocol.SerializeType, c codec.Codec)
• type Context
  • func NewContext(ctx context.Context) *Context
  • func WithLocalValue(ctx *Context, key, val interface{}) *Context
  • func WithValue(parent context.Context, key, val interface{}) *Context
  • func (c *Context) SetValue(key, val interface{})
  • func (c *Context) String() string
  • func (c *Context) Value(key interface{}) interface{}
• type ContextKey
• type DownloadFileArgs
• type FileTransferArgs
• type FileTransferReply
• type StreamServiceArgs
• type StreamServiceReply

Constants

const (
	// DefaultRPCPath is used by ServeHTTP.
	DefaultRPCPath = "/_rpcx_"

	// AuthKey is used in metadata.
	AuthKey = "__AUTH"

	// ServerAddress is used to get address of the server by client
	ServerAddress = "__ServerAddress"

	// ServerTimeout timeout value passed from client to control timeout of server
	ServerTimeout = "__ServerTimeout"

	// OpentracingSpanServerKey key in service context
	OpentracingSpanServerKey = "opentracing_span_server_key"
	// OpentracingSpanClientKey key in client context
	OpentracingSpanClientKey = "opentracing_span_client_key"

	// OpencensusSpanServerKey key in service context
	OpencensusSpanServerKey = "opencensus_span_server_key"
	// OpencensusSpanClientKey key in client context
	OpencensusSpanClientKey = "opencensus_span_client_key"
	// OpencensusSpanRequestKey span key in request meta
	OpencensusSpanRequestKey = "opencensus_span_request_key"

	// SendFileServiceName is name of the file transfer service.
	SendFileServiceName = "_filetransfer"

	// StreamServiceName is name of the stream service.
	StreamServiceName = "_streamservice"
)

Variables

var Codecs = map[protocol.SerializeType]codec.Codec{
	protocol.SerializeNone: &codec.ByteCodec{},
	protocol.JSON:          &codec.JSONCodec{},
}

Codecs are codecs supported by rpcx. You can add customized codecs in Codecs.

var ReqMetaDataKey = ContextKey("__req_metadata")

ReqMetaDataKey is used to set metatdata in context of requests.

var ResMetaDataKey = ContextKey("__res_metadata")

ResMetaDataKey is used to set metatdata in context of responses.

var Trace bool

Trace is a flag to write a trace log or not. You should not enable this flag ofr product environment and enable it only for test. It writes trace log with logger Debug level.

Functions

func GetOpencensusSpanContextFromContext

func GetOpencensusSpanContextFromContext(ctx context.Context) (*trace.SpanContext, error)

GetOpencensusSpanContextFromContext get opencensus.trace.SpanContext from context.Context.

func GetSpanContextFromContext

func GetSpanContextFromContext(ctx context.Context) (opentracing.SpanContext, error)

GetSpanContextFromContext get opentracing.SpanContext from context.Context.

func RegisterCodec

func RegisterCodec(t protocol.SerializeType, c codec.Codec)

RegisterCodec register customized codec.

Types

type Context

type Context struct {
	context.Context
	// contains filtered or unexported fields
}

Context is a rpcx customized Context that can contains multiple values.

func NewContext

func NewContext(ctx context.Context) *Context

func WithLocalValue

func WithLocalValue(ctx *Context, key, val interface{}) *Context

func WithValue

func WithValue(parent context.Context, key, val interface{}) *Context

func (*Context) SetValue

func (c *Context) SetValue(key, val interface{})

func (*Context) String

func (c *Context) String() string

func (*Context) Value

func (c *Context) Value(key interface{}) interface{}

type ContextKey

type ContextKey string

ContextKey defines key type in context.

type DownloadFileArgs

type DownloadFileArgs struct {
	FileName string            `json:"file_name,omitempty"`
	Meta     map[string]string `json:"meta,omitempty"`
}

DownloadFileArgs args from clients.

type FileTransferArgs

type FileTransferArgs struct {
	FileName string            `json:"file_name,omitempty"`
	FileSize int64             `json:"file_size,omitempty"`
	Meta     map[string]string `json:"meta,omitempty"`
}

FileTransferArgs args from clients.

type FileTransferReply

type FileTransferReply struct {
	Token []byte `json:"token,omitempty"`
	Addr  string `json:"addr,omitempty"`
}

FileTransferReply response to token and addr to clients.

type StreamServiceArgs

type StreamServiceArgs struct {
	Meta map[string]string `json:"meta,omitempty"`
}

StreamServiceArgs is the request type for stream service.

type StreamServiceReply

type StreamServiceReply struct {
	Token []byte `json:"token,omitempty"`
	Addr  string `json:"addr,omitempty"`
}

StreamServiceReply is the reply type for stream service.