Ktor HTTP JS

import io.ktor.http.*
import io.ktor.http.content.*
import io.ktor.http.auth.*

import io.ktor.http.HttpMethod
import io.ktor.http.HttpStatusCode
import io.ktor.http.ContentType
import io.ktor.http.Url
import io.ktor.http.Headers
import io.ktor.http.Parameters

import io.ktor.http.*

// Create HTTP method and status
val method = HttpMethod.Get
val status = HttpStatusCode.OK

// Build URLs
val url = Url("https://api.example.com/users")
val builtUrl = buildUrl {
    protocol = URLProtocol.HTTPS
    host = "api.example.com"
    path("v1", "users")
    parameters.append("format", "json")
}

// Handle content types
val contentType = ContentType.Application.Json
val textContent = TextContent("Hello World", ContentType.Text.Plain)

// Manage headers
val headers = headersOf(
    HttpHeaders.Accept to "application/json",
    HttpHeaders.UserAgent to "MyApp/1.0"
)

// Parse and encode URLs
val encodedPath = encodeURLPath("/api/v1/users")
val decodedQuery = decodeURLQueryComponent("q=hello%20world")

class HttpMethod(val value: String) {
    companion object {
        val Get: HttpMethod
        val Post: HttpMethod  
        val Put: HttpMethod
        val Delete: HttpMethod
        val Head: HttpMethod
        val Options: HttpMethod
        val Patch: HttpMethod
        fun parse(method: String): HttpMethod
    }
}

data class HttpStatusCode(val value: Int, val description: String) : Comparable<HttpStatusCode> {
    companion object {
        val OK: HttpStatusCode
        val NotFound: HttpStatusCode
        val InternalServerError: HttpStatusCode
        fun fromValue(value: Int): HttpStatusCode
    }
}

val HttpStatusCode.isSuccess: Boolean

interface Headers : StringValues {
    companion object {
        val Empty: Headers
        fun build(builder: HeadersBuilder.() -> Unit): Headers
    }
}

class HeadersBuilder : StringValuesBuilderImpl() {
    fun append(name: String, value: String)
    fun set(name: String, value: String)
    fun remove(name: String)
    fun build(): Headers
}

object HttpHeaders {
    val Accept: String
    val ContentType: String
    val Authorization: String
    val UserAgent: String
    // ... all standard HTTP headers
    fun checkHeaderName(name: String)
    fun checkHeaderValue(value: String)
}

class ContentType(
    val contentType: String, 
    val contentSubtype: String, 
    val parameters: List<HeaderValueParam>
) : HeaderValueWithParameters {
    fun match(contentType: ContentType): Boolean
    fun withParameter(name: String, value: String): ContentType
    fun withCharset(charset: Charset): ContentType
    
    companion object {
        val Any: ContentType
        fun parse(value: String): ContentType
    }
    
    object Application {
        val Json: ContentType
        val OctetStream: ContentType
        val FormUrlEncoded: ContentType
        val Xml: ContentType
    }
    
    object Text {
        val Plain: ContentType
        val Html: ContentType
        val CSS: ContentType
        val JavaScript: ContentType
    }
}

class Url {
    val protocol: URLProtocol
    val host: String
    val port: Int
    val encodedPath: String
    val parameters: Parameters
    val fragment: String?
    
    companion object {
        operator fun invoke(urlString: String): Url
    }
}

class URLBuilder {
    var protocol: URLProtocol
    var host: String
    var port: Int
    val pathSegments: MutableList<String>
    val parameters: ParametersBuilder
    var fragment: String?
    
    fun build(): Url
    fun buildString(): String
    fun takeFrom(url: String): URLBuilder
}

fun buildUrl(block: URLBuilder.() -> Unit): Url

abstract class OutgoingContent {
    open val contentType: ContentType?
    open val contentLength: Long?
    open val status: HttpStatusCode?
    open val headers: Headers?
}

abstract class OutgoingContent.ByteArrayContent : OutgoingContent() {
    abstract fun bytes(): ByteArray
}

class TextContent(
    val text: String,
    override val contentType: ContentType,
    override val status: HttpStatusCode? = null
) : OutgoingContent.ByteArrayContent

abstract class OutgoingContent.WriteChannelContent : OutgoingContent() {
    abstract suspend fun writeTo(channel: ByteWriteChannel)
}

abstract class HttpAuthHeader(val authScheme: String) {
    abstract fun render(): String
    abstract fun render(encoding: HeaderValueEncoding): String
    
    companion object {
        fun basicAuthChallenge(realm: String, charset: Charset): HttpAuthHeader.Parameterized
        fun digestAuthChallenge(realm: String, nonce: String): HttpAuthHeader.Parameterized
        fun bearerAuthChallenge(realm: String? = null, scope: String? = null): HttpAuthHeader
    }
}

class HttpAuthHeader.Single(authScheme: String, val blob: String) : HttpAuthHeader(authScheme)

class HttpAuthHeader.Parameterized(
    authScheme: String, 
    val parameters: List<HeaderValueParam>
) : HttpAuthHeader(authScheme) {
    fun parameter(name: String): String?
    fun withParameter(name: String, value: String): HttpAuthHeader.Parameterized
}

fun parseAuthorizationHeader(headerValue: String): HttpAuthHeader?

data class Cookie(
    val name: String,
    val value: String,
    val encoding: CookieEncoding = CookieEncoding.RAW,
    val maxAge: Int? = null,
    val expires: GMTDate? = null,
    val domain: String? = null,
    val path: String? = null,
    val secure: Boolean = false,
    val httpOnly: Boolean = false,
    val extensions: Map<String, String?> = emptyMap()
)

enum class CookieEncoding {
    RAW, DQUOTES, URI_ENCODING, BASE64_ENCODING
}

fun parseServerSetCookieHeader(value: String): Cookie
fun parseClientCookiesHeader(value: String): Map<String, String>
fun renderSetCookieHeader(cookie: Cookie): String

interface StringValues {
    val caseInsensitiveName: Boolean
    fun get(name: String): String?
    fun getAll(name: String): List<String>?
    fun contains(name: String): Boolean
    fun contains(name: String, value: String): Boolean
    fun isEmpty(): Boolean
    val entries: Set<Map.Entry<String, List<String>>>
    fun forEach(body: (String, List<String>) -> Unit)
}

interface Parameters : StringValues {
    companion object {
        val Empty: Parameters
        fun build(builder: ParametersBuilder.() -> Unit): Parameters
    }
}

data class HeaderValueParam(
    val name: String,
    val value: String,
    val escapeValue: Boolean = false
)

abstract class HeaderValueWithParameters(
    protected val content: String,
    val parameters: List<HeaderValueParam>
) {
    fun parameter(name: String): String?
}

data class URLProtocol(val name: String, val defaultPort: Int) {
    companion object {
        val HTTP: URLProtocol
        val HTTPS: URLProtocol  
        val WS: URLProtocol
        val WSS: URLProtocol
        fun createOrDefault(name: String): URLProtocol
    }
}