Summary - Ktor HTTP

Combine HttpClient, GET and JSON to write an API client.

Summary - Ktor HTTP

This group covered Ktor client, HttpClient, GET, POST and JSON deserialization. These are the foundations of a modern HTTP client.

You open an HttpClient, configure it with plugins, make requests with get and post, and turn the result into an object with body(). Because it is coroutine based you can run concurrent calls without blocking the UI thread. The next group moves to the server side.

Exercise Summary: Ktor GET

Create an HttpClient. Make a GET request with val response = client.get("https://api.example.com/users"). Print println("Request ready"). Then close with client.close().

Show example solution

fun main() {
    val client = HttpClient()
    val response = client.get("https://api.example.com/users")
    println("Request ready")
    client.close()
}

Test yourself

Which one is used to send a body in a POST request?
- getBody
- setBody
- setUrl
- setHeader
Show answer

setBody — answer: setBody. The body is added with setBody.
Match all Ktor client concepts

HttpClient

Client
get

GET request
post

POST request
@Serializable

Class mark
.body()

Gets object

Next lesson: Ktor server

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