Weather

Write a Rust RESTful web service. The service must return the weather forecast (temperature) in a given city:

• for a given day (current or next, no need to work with historical data) For the next week (a collection of 5 days) Select a pair of third-party web services (with an open API) as the data source. You need to calculate the average of the data from both of them. In implementation, when selecting one or the other, you should be guided by what you would prefer to use in the actual application. It's not necessary but it will be a plus if you:
• cover the code with unit and functional tests Send informative errors to API requests Dockerize service

Configure and run

export OWM_TOKEN="blah" # https://home.openweathermap.org/
export ACCU_TOKEN="blah" # https://developer.accuweather.com
cargo test
cargo run

# using
curl "localhost:8000/forecast?country=RU&city=Moscow" # 5-day forecast
curl "localhost:8000/current?country=RU&city=Saint%20Petersburg" # For today
curl "localhost:8000/current?country=US&city=Chicago&day=1" # For tomorrow

# Docker
sudo docker build -t weather .
sudo docker run -e OWM_TOKEN="blah" -e ACCU_TOKEN="blah" -p "8000:8000" weather

Technical points

Rocket is an ergonomic web framework with zero boilerplate. The latest dev version with async I/O support is used.

Anyhow - Allows you to add context when handling errors in the application.

Reqwest - Almost like a standard http client for Rust.

Reqwest - Minimal number of dependencies. Used the capabilities of the standard library as much as possible.

• City coordinates are stored in memory because different sources may not support a search by city name.

• To reduce the API limits a simple caching of the results by the day of the request was implemented.

• New forecast sources are easy to add through the Provider interface. The service supports calculation of average temperature values for any number of providers.

License

WTFPL