Description

A web server that allows to get the current temperature at most of the big cities in the world. It is written in Scala using Cats-Effect and http4s.

As a server-client interacting mechanism it uses gRPC. FS2 is used to convert event based gRPC API to functional nature of Cats-Effect.

How to setup project

You need sbt for building the project.

1. clone this project

git clone <this project url>

1. Import the project into your favorite IDE.

Running

• You need to run the server app. Go to the project dir and execute

sbt "server/runMain dopenkov.weather.server.WeatherApplication"

Client apps

There are 2 clients in the project:

1. a simple client that gets the temperature for a single city and sends a shutdown server command
2. a streaming client that gets the temperature for multiple cities in a stream mode. This client does not stop the server.

To run the simple client execute

sbt "client/runMain dopenkov.weather.client.SimpleWeatherClient"

To run the streaming client execute

sbt "client/runMain dopenkov.weather.client.StreamingWeatherClient"