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OpenWeatherMapAPI

iOS api classes for openweathermap.org

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![OpenWeatherMapAPI](https://raw.github.com/adba/OpenWeatherMapAPI/master/hero.png)

Open Weather Map iOS API

This projects allows you to quickly and easily fetch data from openweathermap.org.

API Changes

Version 0.0.5

The methods for getting the daily forecast have changed names. So instead of: dailyForecastWeatherByCityName:withCount:withCallback: they are now called: dailyForecastWeatherByCityName:withCount:andCallback:

Added new methods for setting the lang parameter to the api:

 - (void) setLangWithPreferedLanguage;
 - (void) setLang:(NSString *) lang;
 - (NSString *) lang;

The method setLangWithPreferedLanguage sets the lang parameter according to the prefered language on the phone.

Usage

Installation

Using the API is really simple if you have CocoaPods installed.

  1. Add the dependency to your Podfile

    pod 'OpenWeatherMapAPI', '~> 0.0.5'
    
  2. Include the header #import "OWMWeatherAPI.h".

  3. Setup the api:

    // Setup weather api
    OWMWeatherAPI *weatherAPI = [[OWMWeatherAPI alloc] initWithAPIKey:@"YOUR-API-KEY"];
    
  4. Select the default temperature format (defaults to Celsius)

    [weatherAPI setTemperatureFormat:kOWMTempCelcius];
    

Getting data

The api is at this time just simple wrapper for the http-api. So to get the current weather for the city Odense you can call it like this:

[weatherAPI currentWeatherByCityName:@"Odense" withCallback:^(NSError *error, NSDictionary *result) {
    if (error) {
        // handle the error
        return;
    }

    // The data is ready

    NSString *cityName = result[@"name"];
    NSNumber *currentTemp = result[@"main"][@"temp"];

}]

The result data is a NSDictionary that looks like this (json):

    {
        coord: {
            lon: 10.38831,
            lat: 55.395939
        },
        sys: {
            country: "DK",
            sunrise: 1371695759, // this is an NSDate
            sunset: 1371758660   // this is also converted to a NSDate
        },
        weather: [
            {
                id: 800,
                main: "Clear",
                description: "Sky is Clear",
                icon: "01d"
            }
        ],
        base: "global stations",
        main: {
            temp: 295.006,      // this is the the temperature format you´ve selected
            temp_min: 295.006,  //                 --"--
            temp_max: 295.006,  //                 --"--
            pressure: 1020.58,
            sea_level: 1023.73,
            grnd_level: 1020.58,
            humidity: 80
        },
        wind: {
            speed: 6.47,
            deg: 40.0018
        },
        clouds: {
            all: 0
        },
        dt: 1371756382,
        id: 2615876,
        name: "Odense",
        cod: 200
    }

See an example in the OWMViewController.m file.

Methods

The following methods are available at this time:

current weather

current weather by city name:

    -(void) currentWeatherByCityName:(NSString *) name
                        withCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

current weather by coordinate:

    -(void) currentWeatherByCoordinate:(CLLocationCoordinate2D) coordinate
                          withCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

current weather by city id:

    -(void) currentWeatherByCityId:(NSString *) cityId
                      withCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

forecasts (3 hour intervals)

forecast by city name:

    -(void) forecastWeatherByCityName:(NSString *) name
                         withCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

forecast by coordinate:

    -(void) forecastWeatherByCoordinate:(CLLocationCoordinate2D) coordinate
                           withCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

forecast by city id:

    -(void) forecastWeatherByCityId:(NSString *) cityId
                       withCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

daily forecasts

daily forecast by city name:

    -(void) dailyForecastWeatherByCityName:(NSString *) name
                                 withCount:(int) count
                              andCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

daily forecast by coordinates:

    -(void) dailyForecastWeatherByCoordinate:(CLLocationCoordinate2D) coordinate
                                   withCount:(int) count
                                andCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

daily forecast by city id:

   -(void) dailyForecastWeatherByCityId:(NSString *) cityId
                              withCount:(int) count
                           andCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

searching

search for a city by name:

   -(void) searchForCityName:(NSString *) name
                   withCount:(int) count
                andCallback:( void (^)( NSError* error, NSDictionary *result ) )callback;

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