1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
Copyright © 2020 Alexander Kiryukhin <a.kiryukhin@mail.ru>
This file is part of StaticMap project.
*/
package main
import (
"github.com/labstack/echo/v4"
"github.com/neonxp/StaticMap/pkg/static"
"log"
"strconv"
)
func main() {
e := echo.New()
e.GET("/map", func(c echo.Context) error {
lat, err := strconv.ParseFloat(c.QueryParam("lat"), 64)
if err != nil {
return err
}
lon, err := strconv.ParseFloat(c.QueryParam("lon"), 64)
if err != nil {
return err
}
w, err := strconv.Atoi(c.QueryParam("w"))
if err != nil {
w = 800
}
h, err := strconv.Atoi(c.QueryParam("h"))
if err != nil {
h = 800
}
zoom, err := strconv.Atoi(c.QueryParam("zoom"))
if err != nil {
zoom = 16
}
if zoom < 1 {
zoom = 1
}
if zoom > 20 {
zoom = 20
}
img, err := static.GetMapImage(lat, lon, zoom, w, h)
if err != nil {
return err
}
return c.Blob(200, "image/png", img)
})
log.Fatal(e.Start(":8000"))
}
|
