feat: add map_id parameter to static map request (#270)

* feat: add map_id parameter to static map request

* feat: add mapid argument to static map cmdline app

examples/staticmap/cmdline/main.go

@@ -37,6 +37,7 @@ var (
 	scale     = flag.Int("scale", -1, "Scale affects the number of pixels that are returned.")
 	format    = flag.String("format", "", "Format defines the format of the resulting image.")
 	maptype   = flag.String("maptype", "", "Maptype defines the type of map to construct.")
+	mapid     = flag.String("mapid", "", "MapId defines the mapid to use.")
 	language  = flag.String("language", "", "Language defines the language to use for display of labels on map tiles.")
 	region    = flag.String("region", "", "Region the appropriate borders to display, based on geo-political sensitivities.")
 )
@@ -81,6 +82,7 @@ func main() {
 		Language: *language,
 		Region:   *region,
 		MapType:  maps.MapType(*maptype),
+		MapId:    *mapid,
 	}
 
 	resp, err := client.StaticMap(context.Background(), r)

staticmap.go

@@ -253,6 +253,8 @@ type StaticMapRequest struct {
 	Region string
 	// MapType (optional) defines the type of map to construct.
 	MapType MapType
+	// MapId (optional) defines the identifier for a specific map.
+	MapId string
 	// Markers (optional) define one or more markers to attach to the image at specified
 	// locations.
 	Markers []Marker
@@ -296,6 +298,9 @@ func (r *StaticMapRequest) params() url.Values {
 	if r.MapType != "" {
 		q.Set("maptype", string(r.MapType))
 	}
+	if r.MapId != "" {
+		q.Set("map_id", r.MapId)
+	}
 
 	for _, m := range r.Markers {
 		q.Add("markers", m.String())