转到struct代表Twitter JSON结果

Question

I've bashed up this Go twitter client below, the client still needs some work in terms of displaying the results, I'd like to represent the JSON result http://pastie.org/7298856 as a Go struct, I don't need all the fields in the JSON result, any pointers?

package main

import (
    "fmt"
    "io/ioutil"
    "log"
    "net/http"
)

type TwitterResult struct{

}

var twitterUrl = "http://search.twitter.com/search.json?q=%23KOT"

func retrieveTweets(c chan<- string) {
    for {
        resp, err := http.Get(twitterUrl)
        if err != nil {
            log.Fatal(err)
        }

        defer resp.Body.Close()
        body, err := ioutil.ReadAll(resp.Body)
        c <- string(body)
    }

}

func displayTweets(c chan string) {
    fmt.Println(<-c)
}

func main() {
    c := make(chan string)
    go retrieveTweets(c)
    for {
        displayTweets(c)
    }

}

Answer 1

I found this https://groups.google.com/forum/?fromgroups=#!topic/golang-nuts/dNjIs-O64do which is enough to point me in the right direction. Update: my implementation of the code

package main

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

type twitterResult struct {
    Results []struct {
        Text     string `json:"text"`
        Ids      string `json:"id_str"`
        Name     string `json:"from_user_name"`
        Username string `json:"from_user"`
        UserId   string `json:"from_user_id_str"`
    }
}

var (
  twitterUrl = "http://search.twitter.com/search.json?q=%23UCL"
  pauseDuration = 5 * time.Second
)

func retrieveTweets(c chan<- *twitterResult) {
    for {
        resp, err := http.Get(twitterUrl)
        if err != nil {
            log.Fatal(err)
        }

        defer resp.Body.Close()
        body, err := ioutil.ReadAll(resp.Body)
        r := new(twitterResult) //or &twitterResult{} which returns *twitterResult
        err = json.Unmarshal(body, &r)
        if err != nil {
            log.Fatal(err)
        }
        c <- r
        time.Sleep(pauseDuration)
    }

}

func displayTweets(c chan *twitterResult) {
    tweets := <-c
    for _, v := range tweets.Results {
        fmt.Printf("%v:%v
", v.Username, v.Text)
    }

}

func main() {
    c := make(chan *twitterResult)
    go retrieveTweets(c)
    for {
        displayTweets(c)
    }

}

The code works very well, I only wonder if creating a channel that is a pointer to a struct is idiomatic Go.