TempCast — setup

This small Node/Express project uses the OpenWeatherMap API. If you see an error "Invalid OpenWeather API key. Check your OPENWEATHER_KEY in .env", follow these steps:

1. Get an API key

   • Create a free account at https://home.openweathermap.org/users/sign_up
   • After signing in, go to "API keys" and copy your key.

2. Add the key to your project

   • Copy .env.example to .env in the project root.
   • Replace your_openweather_api_key_here with the key you copied.

3. Restart the server

   • If you're running with node server.js, stop and start it again.
   • Example (PowerShell):

node server.js

4. Verify
   • Visit http://localhost:3000 and use the UI to request weather.
   • If the key is still invalid, ensure there are no surrounding quotes/spaces in .env and that your account's key is active.

If you'd like, I can also add runtime checks that print the actual key (masked) or validate it with a test request on startup. Let me know which option you prefer.