Ktor is a framework for building asynchronous servers and clients in connected systems. Ktor allows the application to decide how data should be serialized/deserialized when sent over the network.

Ktor-Moshi allows an application to use Moshi when dealing with JSON content.

When implementing a server, the ContentNegotiation plugin will convert the content. Below is an example of installing Moshi for content negotiation:

install(ContentNegotiation) {
    moshi {
        // Configure the Moshi.Builder here.
        add(Date::class.java, Rfc3339DateJsonAdapter())
    }
}

A Moshi.Builder is available inside the moshi block if it needs to be customized. In this example, Moshi's pre-build RFC-3339 Date adapter is added.

Alternatively, if the application already has a Moshi instance, it can be provided instead of creating a new one.

install(ContentNegotiation) {
    moshi(myExistingMoshiInstance)
}

Refer to the ContentNegotiation documentation for information on how to send and receive formatted data.

When implementing a client, the ContentNegotiation plugin will convert the content. Below is an example of installing Moshi for serializing JSON content:

val client = HttpClient(HttpClientEngine) {
    install(ContentNegotiation) {
        moshi {
            add(Rfc3339DateJsonAdapter())
        }
    }
}

A Moshi.Builder is available inside the MoshiSerializer block if it needs to be customized. In this example, Moshi's pre-build RFC-3339 Date adapter is added.

Alternatively, if the application already has a Moshi instance, it can be provided instead of creating a new one.

val client = HttpClient(HttpClientEngine) {
    install(ContentNegotiation) {
        moshi(myExistingMoshiInstance)
    }
}

Refer to the ContentNegotiation documentation for information on how to send and receive formatted data.

Add a Gradle dependency to your project:

Using the Kotlin DSL:

implementation("com.hypercubetools:ktor-moshi:LATEST_VERSION")

Using the Groovy DSL:

implementation 'com.hypercubetools:ktor-moshi:LATEST_VERSION'

Ryan Harter's ktor-moshi is the original source for this project. The project has been expanded since it's initial state.