Setup timeout dynamically with retrofit https://github.com/square/retrofit/issues/2561

TimeoutInterceptor.kt

class TimeoutInterceptor : Interceptor {

    companion object {

        const val CONNECT_TIMEOUT = "CONNECT_TIMEOUT"
        const val READ_TIMEOUT = "READ_TIMEOUT"
        const val WRITE_TIMEOUT = "WRITE_TIMEOUT"
    }

    @Throws(IOException::class)
    override fun intercept(chain: Interceptor.Chain): Response {
        val request = chain.request()
        val builder = request.newBuilder()

        var connectTimeout = chain.connectTimeoutMillis()
        var readTimeout = chain.readTimeoutMillis()
        var writeTimeout = chain.writeTimeoutMillis()

        val connectNew = request.header(CONNECT_TIMEOUT)
        val readNew = request.header(READ_TIMEOUT)
        val writeNew = request.header(WRITE_TIMEOUT)

        if (!TextUtils.isEmpty(connectNew)) {
            connectTimeout = Integer.valueOf(connectNew)
            builder.removeHeader(CONNECT_TIMEOUT)
        }
        if (!TextUtils.isEmpty(readNew)) {
            readTimeout = Integer.valueOf(readNew)
            builder.removeHeader(READ_TIMEOUT)
        }
        if (!TextUtils.isEmpty(writeNew)) {
            writeTimeout = Integer.valueOf(writeNew)
            builder.removeHeader(WRITE_TIMEOUT)
        }

        return chain
                .withConnectTimeout(connectTimeout, TimeUnit.MILLISECONDS)
                .withReadTimeout(readTimeout, TimeUnit.MILLISECONDS)
                .withWriteTimeout(writeTimeout, TimeUnit.MILLISECONDS)
                .proceed(builder.build())
    }
}