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meteo is a Go client library for the weather and meteorological forecast from Yr.
Weather forecast from Yr, delivered by the Norwegian Meteorological Institute and NRK.
You must register your user agent string in the YR.NO service and your user name at the GeoNames.org.
package main import ( "fmt" "github.com/qba73/meteo" ) func main() { // Export GEO_USERNAME Env Var (you registered at geonames.org) // Get current weather for given location. weather, err := meteo.GetWeather("Vilnius,LT") if err != nil { fmt.Println(err) } fmt.Println(weather) // Cloudy 4.2°C fmt.Println(weather.Summary) // cloudy fmt.Println(weather.Temp) // 4.2 }
The code sample below shows a basic example of how the meteo package can fetch weather statuses concurrently.
package main import ( "fmt" "time" "github.com/qba73/meteo" ) func main() { start := time.Now() ch := make(chan string) locations := []string{ "Vilnius,LT", "Dublin,IE", "London,UK", "Berlin,DE", "Belfast,UK", "Castlebar,IE", "Killarney,IE", "Warsaw,PL", "Lodz,PL", "Vienna,AT"} for _, loc := range locations { go getWeather(loc, ch) } for range locations { fmt.Println(<-ch) } fmt.Printf("%.2fs elapsed\n", time.Since(start).Seconds()) } func getWeather(location string, ch chan<- string) { start := time.Now() weather, err := meteo.GetWeather(location) if err != nil { ch <- fmt.Sprint(err) return } sec := time.Since(start).Seconds() ch <- fmt.Sprintf("%.2fs Location: %s, Weather: %s", sec, location, weather) }
$ go install github.com/qba73/meteo/cmd/meteo@latest