package main import ( "context" "encoding/json" "io/ioutil" "log" "net/http" "os" pb "codeberg.org/andcscott/OpenWeatherMap-gRPC-API/proto" ) type Coordinates struct { Latitude float32 `json:"lat"` Longitude float32 `json:"lon"` } // Receives a gRPC request for Location // Returns a SendLocation message with the Latitude and Longitude func (s *Server) Location(ctx context.Context, in *pb.RequestLocation) (*pb.SendLocation, error) { log.Println("'Location' function called...") url := "http://api.openweathermap.org/geo/1.0/direct?q=" city := in.City token := "&appid=" + os.Getenv("API_KEY") url = url + city + token res, err := http.Get(url) if err != nil { log.Printf("Error fetching location: %v\n", err) } defer res.Body.Close() body, err := ioutil.ReadAll(res.Body) if err != nil { log.Printf("Error reading location: %v\n", err) } coords := []Coordinates{} err = json.Unmarshal(body, &coords) if err != nil { log.Printf("Error decoding JSON: %v\n", err) } return &pb.SendLocation{ Latitude: coords[0].Latitude, Longitude: coords[0].Longitude, }, nil } // Used internally to fetch precise locations for Current and Extended // Receives gRPC requests (interface) and the location (string) // Returns the latitude (float32) and longitude (float32) for a given location func getLocation(city string) (float32, float32) { url := "http://api.openweathermap.org/geo/1.0/direct?q=" token := "&appid=" + os.Getenv("API_KEY") url = url + city + token res, err := http.Get(url) if err != nil { log.Printf("Error fetching location: %v\n", err) } defer res.Body.Close() body, err := ioutil.ReadAll(res.Body) if err != nil { log.Printf("Error reading location: %v\n", err) } coords := []Coordinates{} err = json.Unmarshal(body, &coords) if err != nil { log.Printf("Error decoding JSON: %v\n", err) } return coords[0].Latitude, coords[0].Longitude }