Ktor framework - routing, authentication, WebSockets
Build production backends with Ktor framework. Use when creating REST APIs with routing, JWT authentication, or WebSocket endpoints in Kotlin applications.
/plugin marketplace add pluginagentmarketplace/custom-plugin-kotlin/plugin install kotlin-assistant@pluginagentmarketplace-kotlinThis skill inherits all available tools. When active, it can use any tool Claude has access to.
assets/config.yamlassets/schema.jsonreferences/GUIDE.mdreferences/PATTERNS.mdscripts/validate.pyBuild production-ready backends with Ktor.
fun Application.module() {
install(ContentNegotiation) { json() }
routing {
route("/api/v1") {
get("/users") { call.respond(userService.findAll()) }
get("/users/{id}") {
val id = call.parameters["id"]?.toLongOrNull()
?: throw BadRequestException("Invalid ID")
call.respond(userService.findById(id) ?: throw NotFoundException())
}
}
}
}
install(Authentication) {
jwt("auth") {
verifier(JWT.require(Algorithm.HMAC256(secret)).build())
validate { credential ->
if (credential.payload.getClaim("userId").asString().isNotEmpty())
UserPrincipal(credential.payload)
else null
}
}
}
authenticate("auth") { userRoutes() }
@Test
fun `GET users returns list`() = testApplication {
application { module() }
client.get("/api/v1/users").apply {
assertThat(status).isEqualTo(HttpStatusCode.OK)
}
}
| Issue | Resolution |
|---|---|
| 404 for valid route | Order specific routes before wildcards |
| JSON not parsed | Install ContentNegotiation plugin |
Skill("kotlin-ktor")
This skill should be used when the user asks to "create a slash command", "add a command", "write a custom command", "define command arguments", "use command frontmatter", "organize commands", "create command with file references", "interactive command", "use AskUserQuestion in command", or needs guidance on slash command structure, YAML frontmatter fields, dynamic arguments, bash execution in commands, user interaction patterns, or command development best practices for Claude Code.
This skill should be used when the user asks to "create an agent", "add an agent", "write a subagent", "agent frontmatter", "when to use description", "agent examples", "agent tools", "agent colors", "autonomous agent", or needs guidance on agent structure, system prompts, triggering conditions, or agent development best practices for Claude Code plugins.
This skill should be used when the user asks to "create a hook", "add a PreToolUse/PostToolUse/Stop hook", "validate tool use", "implement prompt-based hooks", "use ${CLAUDE_PLUGIN_ROOT}", "set up event-driven automation", "block dangerous commands", or mentions hook events (PreToolUse, PostToolUse, Stop, SubagentStop, SessionStart, SessionEnd, UserPromptSubmit, PreCompact, Notification). Provides comprehensive guidance for creating and implementing Claude Code plugin hooks with focus on advanced prompt-based hooks API.