OpenWeatherMap Go API

Go (golang) package for use with openweathermap.org's API.

For more detail about the library and its features, reference your local godoc once installed.

Website!

To use the OpenweatherMap API, you need to obtain an API key. Sign up here. Once you have your key, create an environment variable called OWM_API_KEY. Start coding!

Slack Channel

Contributions welcome!

Features

Current Weather Conditions

By City
By City,St (State)
By City,Co (Country)
By City ID
By Zip,Co (Country)
By Longitude and Latitude

Forecast

Get the weather conditions for a given number of days.

By City
By City,St (State)
By City,Co (Country)
By City ID
By Longitude and Latitude

Access to Condition Codes and Icons

Gain access to OpenWeatherMap icons and condition codes.

Thunderstorms
Drizzle
Rain
Snow
Atmosphere
Clouds
Extreme
Additional

Data Available in Multiple Measurement Systems

Fahrenheit (OpenWeatherMap API - imperial)
Celsius (OpenWeatherMap API - metric)
Kelvin (OpenWeatherMap API - internal)

UV Index Data

Current
Historical

Pollution Data

Current

Historical Conditions

By Name
By ID
By Coordinates

Supported Languages

English - en, Russian - ru, Italian - it, Spanish - es (or sp), Ukrainian - uk (or ua), German - de, Portuguese - pt, Romanian - ro, Polish - pl, Finnish - fi, Dutch - nl, French - fr, Bulgarian - bg, Swedish - sv (or se), Chinese Traditional - zh_tw, Chinese Simplified - zh (or zh_cn), Turkish - tr, Croatian - hr, Catalan - ca

Installation

go get github.com/briandowns/openweathermap

Examples

There are a few full examples in the examples directory that can be referenced. 1 is a command line application and 1 is a simple web application.

package main

import (
	"log"
	"fmt"
	"os"

	// Shortening the import reference name seems to make it a bit easier
	owm "github.com/briandowns/openweathermap"
)

var apiKey = os.Getenv("OWM_API_KEY")

func main() {
	w, err := owm.NewCurrent("F", "ru", apiKey) // fahrenheit (imperial) with Russian output
	if err != nil {
		log.Fatalln(err)
	}

	w.CurrentByName("Phoenix")
	fmt.Println(w)
}

Current Conditions by location name

func main() {
    w, err := owm.NewCurrent("K", "EN", apiKey) // (internal - OpenWeatherMap reference for kelvin) with English output
    if err != nil {
        log.Fatalln(err)
    }

    w.CurrentByName("Phoenix,AZ")
    fmt.Println(w)
}

Forecast Conditions in imperial (fahrenheit) by coordinates

func main() {
    w, err := owm.NewForecast("5", "F", "FI", apiKey) // valid options for first parameter are "5" and "16"
    if err != nil {
        log.Fatalln(err)
    }

    w.DailyByCoordinates(
        &owm.Coordinates{
                Longitude: -112.07,
                Latitude: 33.45,
        },
        5 // five days forecast
    )
    fmt.Println(w)
}

Current conditions in metric (celsius) by location ID

func main() {
    w, err := owm.NewCurrent("C", "PL", apiKey)
    if err != nil {
        log.Fatalln(err)
    }

    w.CurrentByID(2172797)
    fmt.Println(w)
}

Current conditions by zip code. 2 character country code required

func main() {
    w, err := owm.NewCurrent("F", "EN", apiKey)
    if err != nil {
        log.Fatalln(err)
    }

    w.CurrentByZip(19125, "US")
    fmt.Println(w)
}

Configure http client

func main() {
    client := &http.Client{}
    w, err := owm.NewCurrent("F", "EN", apiKey, owm.WithHttpClient(client))
    if err != nil {
        log.Fatalln(err)
    }
}

Current UV conditions

func main() {
    uv, err := owm.NewUV(apiKey)
    if err != nil {
        log.Fatalln(err)
    }

    coord := &owm.Coordinates{
        Longitude: 53.343497,
        Latitude:  -6.288379,
    }

    if err := uv.Current(coord); err != nil {
        log.Fatalln(err)
    }
    
    fmt.Println(coord)
}

Historical UV conditions

func main() {
    uv, err := owm.NewUV(apiKey)
    if err != nil {
        log.Fatalln(err)
    }

    coord := &owm.Coordinates{
        Longitude: 54.995656,
        Latitude:  -7.326834,
    }

    end := time.Now().UTC()
    start := time.Now().UTC().Add(-time.Hour * time.Duration(24))

    if err := uv.Historical(coord, start, end); err != nil {
        log.Fatalln(err)
    }
}

UV Information

func main() {
    uv, err := owm.NewUV(apiKey)
    if err != nil {
        log.Fatalln(err)
    }
    
    coord := &owm.Coordinates{
    	Longitude: 53.343497,
    	Latitude:  -6.288379,
    }
    
    if err := uv.Current(coord); err != nil {
    	log.Fatalln(err)
    }

    info, err := uv.UVInformation()
    if err != nil {
        log.Fatalln(err)
    }
    
    fmt.Println(info)
}

Pollution Information

func main() {
    pollution, err := owm.NewPollution(apiKey)
    if err != nil {
        log.Fatalln(err)
    }

    params := &owm.PollutionParameters{
        Location: owm.Coordinates{
            Latitude:  0.0,
            Longitude: 10.0,
        },
        Datetime: "current",
    }

    if err := pollution.PollutionByParams(params); err != nil {
        log.Fatalln(err)
    }
}

License

aliceUnhinged613/openweathermap

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