Hi! Do you know how to set body on a POST query using Ktor client without creating a new class to pa...

# ktor

[Antonio Acuña Prieto]

Hi! Do you know how to set body on a POST query using Ktor client without creating a new class to parse? Maybe using object?

[Harold Martin]

You can manually construct a JsonObject https://kotlinlang.org/api/kotlinx.serialization/kotlinx-serialization-json/kotlinx.serialization.json/-json-object/

[Antonio Acuña Prieto]

Does it work with Jackson?

[Aleksei Tirman [JB]]

If you use Jackson, you can create an ObjectNode object using the ObjectMapper . Here is an example:

val client = HttpClient(CIO) {
    install(ContentNegotiation) {
        jackson()
    }
}

val mapper = ObjectMapper()
val rootNode: ObjectNode = mapper.createObjectNode()

val childNode1: ObjectNode = mapper.createObjectNode()
childNode1.put("name1", "val1")
childNode1.put("name2", "val2")
rootNode.set<ObjectNode>("obj1", childNode1)
rootNode.set<TextNode>("data", TextNode("value"))

val response = <http://client.post|client.post>("<https://httpbin.org/post>") {
    setBody(rootNode)
    contentType(ContentType.Application.Json)
}

println(response.bodyAsText())