hadv

syntax = “proto3”;
option go_package = “echo”;
// Echo Service
//
// Echo Service API consists of a single service which returns a message.
package hadv.grpc.echo;
import “google/api/annotations.proto”;
// Message represents a simple message sent to the Echo service.
message Message {
  // Id represents the message identifier.

hadv

package main
import (
  “github.com/golang/glog”
  examples “github.com/hadv/grpc”
  “golang.org/x/net/context”
  “google.golang.org/grpc”
  “google.golang.org/grpc/metadata”
)
// Implements of EchoServiceServer
type echoServer struct{}

hadv

package main
import (
  “flag”
  “net/http”
  “github.com/gengo/grpc-gateway/runtime”
  “github.com/golang/glog”
  echo “github.com/hadv/grpc/echo”
  “golang.org/x/net/context”
  “google.golang.org/grpc”
)

hadv

{
  "swagger": "2.0",
  "info": {
    "title": "Echo Service",
    "description": "Echo Service API consists of a single service which returns a message.",
    "version": "version not set"
  },
  "schemes": [
    "http",
    "https"

hadv

type weatherProvider interface {
	temperature(city string) (float64, error)
}

hadv

type openWeatherMap struct {
	apiKey string
}

func (w openWeatherMap) temperature(city string) (float64, error) {
	resp, err := http.Get("http://api.openweathermap.org/data/2.5/weather?APPID=" + w.apiKey + "&q=" + city)
	if err != nil {
		return 0, err
	}

hadv

type apixu struct {
	apiKey string
}

func (w apixu) temperature(city string) (float64, error) {
	resp, err := http.Get("http://api.apixu.com/v1/current.json?key=" + w.apiKey + "&q=" + city)
	if err != nil {
		return 0, err
	}

hadv

func (w multiWeatherProvider) temperature(city string) (float64, error) {
	// Make a channel for temperatures, and a channel for errors.
	// Each provider will push a value into only one.
	temps := make(chan float64, len(w))
	errs := make(chan error, len(w))

	// For each provider, spawn a goroutine with an anonymous function.
	// That function will invoke the temperature method, and forward the response.
	for _, provider := range w {
		go func(p weatherProvider) {

hadv

func main() {
	mw := multiWeatherProvider{
		openWeatherMap{apiKey: "5bd6d7d469feee97788f51744f8c2910"},
		apixu{apiKey: "ff8b321075a54e7288794851162712"},
	}

	http.HandleFunc("/weather/", func(w http.ResponseWriter, r *http.Request) {
		begin := time.Now()
		city := strings.SplitN(r.URL.Path, "/", 3)[2]

hadv

Keybase proof

I hereby claim:

• I am hadv on github.
• I am dvietha (https://keybase.io/dvietha) on keybase.
• I have a public key ASApRXY1Pj2ToSDec4ZOPXIcHWyp8qlQ8GE_obqoMU1OjAo

To claim this, I am signing this object: