kotlin-sdk-core/io.modelcontextprotocol.kotlin.sdk.types/CustomNotification

CustomNotification

@Serializable
data class CustomNotification(val method: Method, val params: BaseNotificationParams? = null) : ClientNotification, ServerNotification(source)

Represents a custom notification method that is not part of the core MCP specification.

The MCP protocol allows implementations to define custom methods for extending functionality. This class captures such custom notifications while preserving all their data.

Constructors

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constructor(method: Method, params: BaseNotificationParams? = null)

Properties

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open override val method: Method

The custom method name. By convention, custom methods often contain organization-specific prefixes (e.g., "mycompany/custom_event").

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open override val params: BaseNotificationParams?

Raw JSON parameters for the custom notification, if present.

Functions

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fun Notification.toJSON(): JSONRPCNotification
fun Notification.toJSON(): JSONRPCNotification

Converts the notification to a JSON-RPC notification.

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