88 lines
2.6 KiB
Go
88 lines
2.6 KiB
Go
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package main
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import (
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"encoding/json"
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"fmt"
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"log"
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"net/http"
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"strconv"
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"time"
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)
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var portToListenOn int = 9100
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var defaultTZ string = "Europe/Berlin"
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type DateTimeResponse struct {
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Year int `json:"year,omitempty"`
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Month int `json:"month,omitempty"`
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Day int `json:"day,omitempty"`
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Hour int `json:"hour,omitempty"`
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Minute int `json:"minute,omitempty"`
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Seconds int `json:"seconds,omitempty"`
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MilliSeconds int `json:"milliSeconds,omitempty"`
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DateTime string `json:"dateTime,omitempty"`
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Date string `json:"date,omitempty"`
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Time string `json:"time,omitempty"`
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TimeZone string `json:"timeZone,omitempty"`
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DayOfWeek string `json:"dayOfWeek,omitempty"`
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DstActive bool `json:"dstActive,omitempty"`
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}
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func main() {
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fmt.Println("********************************************")
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fmt.Println("* *")
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fmt.Println("* git.0x0001f346.de/andreas/Datetime-API *")
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fmt.Println("* *")
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fmt.Println("********************************************")
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fmt.Println("")
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fmt.Printf("Listening: http://localhost:%d\n", portToListenOn)
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fmt.Println("")
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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loc, _ := time.LoadLocation(defaultTZ)
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if r.URL.String() != "/" {
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newloc, err := time.LoadLocation(r.URL.String()[1:])
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if err == nil {
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loc = newloc
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}
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}
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log.Printf(
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"%q %q\n",
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loc.String(),
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r.RemoteAddr,
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)
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w.Header().Add("Content-Language", "en")
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w.Header().Add("Content-Type", "application/json; charset=utf-8")
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w.Header().Add("Server", "git.0x0001f346.de/andreas/Datetime-API")
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fmt.Fprint(w, GetDateTimeResponseAsJSONString(loc))
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})
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log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", portToListenOn), nil))
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}
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func GetDateTimeResponse(loc *time.Location) DateTimeResponse {
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t := time.Now().In(loc)
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return DateTimeResponse{
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Year: t.Year(),
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Month: int(t.Month()),
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Day: t.Day(),
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Hour: t.Hour(),
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Minute: t.Minute(),
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Seconds: t.Second(),
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MilliSeconds: func(i int64, err error) int { return int(i) }(strconv.ParseInt(strconv.Itoa(t.Nanosecond())[:3], 10, 0)),
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DateTime: t.Format(time.RFC3339),
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Date: fmt.Sprintf("%02d/%02d/%04d", t.Month(), t.Day(), t.Year()),
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Time: fmt.Sprintf("%02d:%02d", t.Hour(), t.Minute()),
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TimeZone: loc.String(),
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DayOfWeek: t.Weekday().String(),
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DstActive: t.IsDST(),
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}
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}
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func GetDateTimeResponseAsJSONString(loc *time.Location) string {
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r, _ := json.Marshal(GetDateTimeResponse(loc))
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return string(r)
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}
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