com.github.jchanghong.http.okhttp.AccessHeaders.kt Maven / Gradle / Ivy

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/*
 * Copyright (C) 2014 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.github.jchanghong.http.okhttp

import okhttp3.OkHttpClient
import okhttp3.Request
import java.io.IOException

class AccessHeaders {
    private val client = OkHttpClient()

    fun run() {
        val request = Request.Builder()
            .url("https://api.github.com/repos/square/okhttp/issues")
            .header("User-Agent", "OkHttp Headers.java")
            .addHeader("Accept", "application/json; q=0.5")
            .addHeader("Accept", "application/vnd.github.v3+json")
            .build()

        client.newCall(request).execute().use { response ->
            if (!response.isSuccessful) throw IOException("Unexpected code $response")

            println("Server: ${response.header("Server")}")
            println("Date: ${response.header("Date")}")
            println("Vary: ${response.headers("Vary")}")
        }
    }
}

fun main() {
    AccessHeaders().run()
}