func main() {
flag.Parse()
var client *maps.Client
var err error
if *apiKey != "" {
client, err = maps.NewClient(maps.WithAPIKey(*apiKey))
} else if *clientID != "" || *signature != "" {
client, err = maps.NewClient(maps.WithClientIDAndSignature(*clientID, *signature))
} else {
usageAndExit("Please specify an API Key, or Client ID and Signature.")
}
check(err)
r := &maps.ElevationRequest{}
if *samples > 0 {
r.Samples = *samples
}
if *locations != "" {
l, err := decodeLocations(*locations)
check(err)
r.Locations = l
}
if *path != "" {
p, err := decodePath(*path)
check(err)
r.Path = p
}
resp, err := client.Elevation(context.Background(), r)
if err != nil {
log.Fatalf("Could not request elevations: %v", err)
}
pretty.Println(resp)
}
