rain.go

package main

import (
    "log"
    "bufio"
    "encoding/json"
    "net/http"
)

func main() {
    client := new(http.Client)
    req, err := http.NewRequest("GET", "https://stream.twitter.com/1/statuses/filter.json?track=rain", nil)
    if err != nil {
        log.Fatal(err.Error())
    }
    req.SetBasicAuth("", "") // fill this in with your twitter username and password.
    res, err := client.Do(req)
    if err != nil {
        log.Fatal(err.Error())
    }
    reader := bufio.NewReader(res.Body)
    for {
        line, err := reader.ReadBytes('\r')
        if err != nil {
            log.Fatal(err.Error())
        }
        var item struct{
            Text string `json:"text"`
        }
        err = json.Unmarshal(line, &item)
        if err != nil {
            log.Fatal(err.Error())
        }
        log.Println(item.Text)
    }
}