Golang Post Test

test.go

package main

import (
        "encoding/json"
        "fmt"
        "io/ioutil"
        "net/http"
        "net/url"
)

const (
        MAP_GOOGLE_GEOCODE  = "http://maps.googleapis.com/maps/api/geocode/json"
        MAP_GOOGLE_TIMEZONE = "https://maps.googleapis.com/maps/api/timezone/json"
)

type geocodeInfo struct {
        results struct {
                formatted_address string
                geometry          struct {
                        location struct {
                                lat     float64
                                lng     float64
                        }
                }
        }
}

func parseGeocode(city, lan string) {
        datas := make(map[string][]string)
        datas["address"] = []string{city}
        datas["sensor"] = []string{"false"}
        datas["language"] = []string{lan}
        values := url.Values(datas)
        fmt.Println("Geocode values:", values)

        rets := clientPostRequest(MAP_GOOGLE_GEOCODE, values)
        fmt.Println("Geocode post ret:\n", string(rets))

        info := &geocodeInfo{}
        err := json.Unmarshal(rets, info)
        if err != nil {
                fmt.Println("Parse geocode json failed:", err)
                panic(err)
        }

        fmt.Println("Address:", info.results.formatted_address)
        fmt.Println("Location:", info.results.geometry.location.lat,
                " , ", info.results.geometry.location.lng)
}

func parseTimezone(lat, lng string) {
        datas := make(map[string][]string)
        datas["location"] = []string{lat + "," + lng}
        datas["timestamp"] = []string{"1331161200"}
        datas["sensor"] = []string{"false"}
        values := url.Values(datas)
        fmt.Println("Timezone values:", values)

        rets := clientPostRequest(MAP_GOOGLE_TIMEZONE, values)
        fmt.Println("Timezone post ret:", string(rets))
}

func clientPostRequest(api string, datas url.Values) []byte {
        client := &http.Client{
                CheckRedirect: nil,
        }
        response, err := client.PostForm(api, datas)
        if err != nil {
                fmt.Println("client post failed:", err)
                panic(err)
        }

        if response.StatusCode != 200 {
                fmt.Println("response failed, status:", response.StatusCode)
                panic(response.StatusCode)
        }

        defer response.Body.Close()
        body, _ := ioutil.ReadAll(response.Body)

        return body
}

func main() {
        parseGeocode("Shanghai", "en")
        parseTimezone("37.77492950", "-122.41941550")
}