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package com.example

import com.auth0.jwk.JwkProviderBuilder
import io.ktor.client.HttpClient
import io.ktor.client.call.body
import io.ktor.client.request.get
import io.ktor.http.HttpMethod
import io.ktor.server.auth.AuthenticationConfig
import io.ktor.server.auth.OAuthServerSettings
import io.ktor.server.auth.authentication

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suspend fun refreshToken(): String? = withContext(Dispatchers.IO) {
        val callback = CompletableDeferred<OAuth2>()
        val server = embeddedServer(CIO, port = 0) {
            val port = async { engine.resolvedConnectors().first().port }
            authentication {
                oauth("oauth") {
                    @OptIn(ExperimentalCoroutinesApi::class)
                    urlProvider = { "http://localhost:${port.getCompleted()}/callback" }
                    providerLookup = {
                        OAuthServerSettings.OAuth2ServerSettings(

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package io.ktor.route.simple

import io.ktor.server.plugins.BadRequestException
import kotlin.reflect.KProperty1

class ValidationBuilder<T> {

    private val validators = mutableListOf<Pair<KProperty1<T, *>, (value: Any?) -> String?>>()

    fun validate(instance: T): List<String> =

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Ktor 3.2.0 Config EAP

Ktor 3.2.0 will add support for automatically deserializing configuration files into data classes. Let's define a simple application.yaml that defines some database configuration.

database:
    driverClassName: "$DB_DRIVER_CLASS_NAME:org.postgresql.Driver"
    host: "$DB_HOST:localhost"
    port: "$DATABASE_PORT:5432"

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package org.jetbrains.ktor.sample

import kotlin.properties.ReadOnlyProperty
import kotlin.reflect.KProperty
import org.jetbrains.exposed.sql.Database
import org.jetbrains.exposed.sql.transactions.TransactionManager
import org.jetbrains.ktor.sample.config.dataSource
import org.jetbrains.ktor.sample.config.flyway
import org.junit.ClassRule
import org.junit.rules.ExternalResource

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import com.apurebase.kgraphql.GraphQL
import com.apurebase.kgraphql.schema.Publisher
import com.apurebase.kgraphql.schema.dsl.SchemaBuilder
import io.ktor.server.application.*
import org.koin.dsl.module
import org.koin.ktor.ext.inject
import org.koin.ktor.plugin.Koin
import org.koin.logger.slf4jLogger
import kotlin.getValue

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package io.github.nomisrev

import app.cash.sqldelight.driver.jdbc.asJdbcDriver
import arrow.continuations.SuspendApp
import arrow.continuations.ktor.server
import arrow.fx.coroutines.autoCloseable
import arrow.fx.coroutines.closeable
import arrow.fx.coroutines.resourceScope
import com.zaxxer.hikari.HikariConfig
import com.zaxxer.hikari.HikariDataSource

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import arrow.atomic.Atomic
import arrow.atomic.update

/**
  * AutoClose offers DSL style API for creating parent-child relationships of AutoCloseable dependencies
  */
interface AutoClose : AutoCloseable {
  fun <A : AutoCloseable> autoClose(autoCloseable: A): A
}

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import arrow.core.Nel
import arrow.core.raise.Raise
import arrow.core.raise.recover
import arrow.fx.coroutines.parZipOrAccumulate

object ApplicationError
object UserLegalId
object User
object DepartmentCode
object Department