Creating an API key.

There are many websites out there where we can create API keys and use their information in our apps. Using API keys in our projects really simplifies our work. I have used openweathermap.org, you can use it too in your project if you want.

Here, you just need to sign up and you can create your API key for free. You can call by city name or city name, state code, country-code, or geographic coordinates. I have used the city id API call.