lambda

README

Overview

Documentation

Index

• func Start(handler interface{})
• type Function
  • func (fn *Function) Invoke(req *messages.InvokeRequest, response *messages.InvokeResponse) error
  • func (fn *Function) Ping(req *messages.PingRequest, response *messages.PingResponse) error

Functions

func Start

func Start(handler interface{})

Start takes a handler, and talks to and internal Lambda endpoint to pass Invoke requests to the handler. If a handler does not match one of the supported types, the lambda package will respond to new invokes served by in internal endpoint with an appropriate error message. Start blocks, and does not return after being called.

Rules:

• handler must be a function
• handler may take between 0 and two arguments.
• if there are two arguments, the first argument must implement "context.Context".
• handler may return between 0 and two arguments.
• if there are two return values, the second argument must implement "error".
• if there is one return value it must implement "error".

Valid function signatures:

func ()
func () error
func (TIn) error
func () (TOut, error)
func (TIn) (TOut, error)
func (context.Context) error
func (context.Context, TIn) error
func (context.Context) (TOut, error)
func (context.Context, TIn) (TOut, error)

Where "TIn" and "TOut" are types compatible with the "encoding/json" standard library. See https://golang.org/pkg/encoding/json/#Unmarshal for how deserialization behaves

Types

type Function

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

func (*Function) Invoke

func (fn *Function) Invoke(req *messages.InvokeRequest, response *messages.InvokeResponse) error

func (*Function) Ping

func (fn *Function) Ping(req *messages.PingRequest, response *messages.PingResponse) error