main.go

package main

import (
	"encoding/json"
	"flag"
	"fmt"
	"io"
	"log"
	"net/http"

	"github.com/gin-gonic/gin"
)

const weatherAPIURL = "http://api.weatherapi.com/v1/current.json"
const apiKey = "deleted but is in Binary file"

type WeatherResponse struct {
	Location struct {
		Name           string  `json:"name"`
		Region         string  `json:"region"`
		Country        string  `json:"country"`
		Lat            float64 `json:"lat"`
		Lon            float64 `json:"lon"`
		TzID           string  `json:"tz_id"`
		LocaltimeEpoch int     `json:"localtime_epoch"`
		Localtime      string  `json:"localtime"`
	} `json:"location"`
	Current struct {
		LastUpdatedEpoch int     `json:"last_updated_epoch"`
		LastUpdated      string  `json:"last_updated"`
		TempC            float64 `json:"temp_c"`
		TempF            float64 `json:"temp_f"`
		IsDay            int     `json:"is_day"`
		Condition        struct {
			Text string `json:"text"`
			Icon string `json:"icon"`
			Code int    `json:"code"`
		} `json:"condition"`
		WindMph    float64 `json:"wind_mph"`
		WindKph    float64 `json:"wind_kph"`
		WindDegree int     `json:"wind_degree"`
		WindDir    string  `json:"wind_dir"`
		PressureMb float64 `json:"pressure_mb"`
		PressureIn float64 `json:"pressure_in"`
		PrecipMm   float64 `json:"precip_mm"`
		PrecipIn   float64 `json:"precip_in"`
		Humidity   int     `json:"humidity"`
		Cloud      int     `json:"cloud"`
		FeelslikeC float64 `json:"feelslike_c"`
		FeelslikeF float64 `json:"feelslike_f"`
		WindchillC float64 `json:"windchill_c"`
		WindchillF float64 `json:"windchill_f"`
		HeatindexC float64 `json:"heatindex_c"`
		HeatindexF float64 `json:"heatindex_f"`
		DewpointC  float64 `json:"dewpoint_c"`
		DewpointF  float64 `json:"dewpoint_f"`
		VisKm      float64 `json:"vis_km"`
		VisMiles   float64 `json:"vis_miles"`
		UV         float64 `json:"uv"`
		GustMph    float64 `json:"gust_mph"`
		GustKph    float64 `json:"gust_kph"`
	} `json:"current"`
}

func fetchWeather(city string) (*WeatherResponse, error) {
	url := weatherAPIURL + "?key=" + apiKey + "&q=" + city + "&aqi=no"
	resp, err := http.Get(url)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}

	var weatherResponse WeatherResponse
	err = json.Unmarshal(body, &weatherResponse)
	if err != nil {
		return nil, err
	}

	return &weatherResponse, nil
}

func main() {
	// Define a command-line flag for the port number
	port := flag.String("port", "8080", "port number to run the server on")
	flag.Parse()

	router := gin.Default()

	router.GET("/weather/:city", func(c *gin.Context) {
		city := c.Param("city")

		weather, err := fetchWeather(city)
		if err != nil {
			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
			return
		}

		c.JSON(http.StatusOK, weather)
	})

	// Start the server with the specified or default port number
	log.Fatal(router.Run(fmt.Sprintf(":%s", *port)))
}