Kotlin Blueprints

Path parameters

The path can also contain parameters that match specific path segments and capture its value into parameters properties of an application call:

    get("/user/{id}") {      val id = call.parameters["id"]    }

Let's look at the newsSources function:

    /**     * Get list of all news sources     */    fun Route.newsSources() {      get("/news-source") {        val (_, _, result) =          "https://newsapi.org/v1/sources".httpGet().responseString()        call.respondText(result.get(), ContentType.Application.Json)      }    }

The function contains a GET request specified using the get function from Route. Inside the get function, we get call, which is an instance of ApplicationCall to handle requests and responses.

We send a GET request to the News API, fetch all the news sources or ...