### Run the application

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/tutorial-server-get-started-maven/README.md

Command to run the application after building.

```Bash
java -jar target/tutorial-server-get-started-maven-0.0.1-jar-with-dependencies.jar
```

--------------------------------

### Build the application

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/tutorial-server-get-started-maven/README.md

Command to build an assembly for the application.

```bash
mvn package
```

--------------------------------

### Install session authentication

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-session-auth.md

Example of installing the `session` authentication provider within the `install` block.

```kotlin
import io.ktor.server.application.*
import io.ktor.server.auth.*
import io.ktor.server.sessions.*
//...
install(Authentication) {
    session<UserSession> {
        // Configure session authentication
    }
}
```

--------------------------------

### Run Sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/tutorial-client-get-started/README.md

Command to run the Ktor client sample project from the repository's root directory.

```bash
./gradlew :tutorial-client-get-started:run
```

--------------------------------

### Install DefaultRequest with configuration

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-default-request.md

Example showing how to install DefaultRequest and provide a configuration block.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.*
//...
val client = HttpClient(CIO) {
    defaultRequest {
        // this: DefaultRequestBuilder
    }
}
```

--------------------------------

### Choose an authentication provider

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-auth.md

Example of installing the basic authentication provider within the `install` block.

```kotlin
import io.ktor.server.application.*
import io.ktor.server.auth.*
// ...
install(Authentication) {
    basic {
        // [[[Configure basic authentication|server-basic-auth.md]]]
    }
}
```

--------------------------------

### Install DefaultRequest

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-default-request.md

Example showing how to install the DefaultRequest plugin in a client configuration block.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.*
//...
val client = HttpClient(CIO) {
    install(DefaultRequest)
}
```

--------------------------------

### Install Auth plugin

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-auth.md

Example of installing the Auth plugin in a Ktor client configuration block.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.auth.*
//...
val client = HttpClient(CIO) {
    install(Auth) {
        // Configure authentication
    }
}
```

--------------------------------

### Start the SSL server

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-ssl-config/README.md

Command to run the ssl-engine-main example server, which is a prerequisite for this client sample.

```bash
./gradlew :ssl-engine-main:run
```

--------------------------------

### Install or replace client plugin configuration

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/whats-new-340.md

Example demonstrating how to use `installOrReplace()` to install or update a client plugin's configuration.

```kotlin
val client = HttpClient {
    installOrReplace(ContentNegotiation) {
        json()
    }
}
```

--------------------------------

### Install HttpTimeout

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-timeout.md

Example of installing the HttpTimeout plugin in a Ktor client configuration block.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.*
//...
val client = HttpClient(CIO) {
    install(HttpTimeout)
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/static-zip/README.md

Command to execute the sample Ktor project.

```bash
./gradlew :static-zip:run
```

--------------------------------

### Multiple CachingHeaders installations on the same route

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-plugins.md

Example demonstrating how multiple installations of the CachingHeaders plugin on the same route are merged, with the last installation winning.

```kotlin
routing {
    route("index") {
        install(CachingHeaders) { /* First configuration */ }
        get("a") {
            // ...
        }
    }
    route("index") {
        install(CachingHeaders) { /* Second configuration */ }
        get("b") {
            // ...
        }
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-download-file/README.md

Command to execute the sample project.

```bash
./gradlew :client-download-file:run
```

--------------------------------

### Install HttpRequestRetry with HttpTimeout

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-request-retry.md

Example demonstrating the correct installation order when HttpRequestRetry is used with HttpTimeout, where HttpRequestRetry should be installed first.

```kotlin
val client = HttpClient(CIO) {
    install(HttpRequestRetry) // Should be installed before HttpTimeout
    install(HttpTimeout) {
       // ...
     }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-custom-plugin-auth/README.md

Command to execute the sample Ktor project.

```bash
./gradlew :client-custom-plugin-auth:run
```

--------------------------------

### Install HttpCallValidator

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-response-validation.md

Example of installing the HttpCallValidator plugin in a Ktor HTTP client configuration.

```kotlin
val client = HttpClient(CIO) {
    HttpResponseValidator {
        // ...
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-default-request/README.md

Command to execute the sample project.

```bash
./gradlew :client-default-request:run
```

--------------------------------

### Install Resources plugin

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-resources.md

Example of installing the Resources plugin in a Ktor client configuration.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.resources.*
//...
val client = HttpClient(CIO) {
    install(Resources)
}
```

--------------------------------

### Run the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-custom-plugin/README.md

Command to execute the sample Ktor project.

```bash
./gradlew :client-custom-plugin:run
```

--------------------------------

### Install BOMRemover

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-bom-remover.md

Example of installing the BOMRemover plugin in a Ktor HTTP client configuration.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.bomremover.*
//...
val client = HttpClient(CIO) {
    install(BOMRemover)
}
```

--------------------------------

### Run the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/session-cookie-server/README.md

Command to execute the sample project from the repository's root directory.

```bash
./gradlew :session-cookie-server:run
```

--------------------------------

### Run the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/session-header-server/README.md

Command to execute the sample project using Gradle.

```bash
./gradlew :session-header-server:run
```

--------------------------------

### Install Plugins in a module

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-plugins.md

Example of installing CORS and Compression plugins within an application module.

```kotlin
import io.ktor.server.application.*
import io.ktor.server.plugins.cors.*
import io.ktor.server.plugins.compression.*
// ...
fun Application.module() {
    install(CORS)
    install(Compression)
    // ...
}
```

--------------------------------

### Install Plugins in embeddedServer

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-plugins.md

Example of installing CORS and Compression plugins within the embeddedServer call.

```kotlin
import io.ktor.server.application.*
import io.ktor.server.plugins.cors.*
import io.ktor.server.plugins.compression.*
// ...
fun main() {
    embeddedServer(Netty, port = 8080) {
        install(CORS)
        install(Compression)
        // ...
    }.start(wait = true)
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/static-resources/README.md

Command to execute the static-resources sample project.

```bash
./gradlew :static-resources:run
```

--------------------------------

### Install JWT authentication

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-jwt.md

Example of installing the JWT authentication provider in a Ktor application.

```kotlin
import io.ktor.server.application.*
import io.ktor.server.auth.*
import io.ktor.server.auth.jwt.*
//...
install(Authentication) {
    jwt {
        // Configure jwt authentication
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-custom-plugin-data-transformation/README.md

Command to execute the sample project.

```bash
./gradlew :client-custom-plugin-data-transformation:run
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-configure-request/README.md

Command to execute the sample project from the repository's root directory.

```bash
./gradlew :client-configure-request:run
```

--------------------------------

### Nested Routes Example

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-routing.md

This example demonstrates how to define nested routes to respond to GET and POST requests for '/order/shipment'.

```kotlin
routing {
    route("/order") {
        route("/shipment") {
            get {
                
            }
            post {
                
            }
        }
    }
}
```

--------------------------------

### Run the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/post-form-parameters/README.md

Command to run the Ktor sample project using Gradle.

```bash
./gradlew :post-form-parameters:run
```

--------------------------------

### Install HttpRequestRetry

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-request-retry.md

Example showing how to install the HttpRequestRetry plugin in a Ktor client configuration block.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.*
//...
val client = HttpClient(CIO) {
    install(HttpRequestRetry)
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-http-send/README.md

Command to execute the sample project from the repository's root directory.

```bash
./gradlew :client-http-send:run
```

--------------------------------

### Running the Client I/O Interop Sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-io-interop/README.md

Execute this Gradle command to run the sample project. The client downloads random bytes, wraps the response channel as a kotlinx-io RawSource, and prints the first byte read.

```bash
./gradlew :client-io-interop:run
```

--------------------------------

### Running download-file server sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-download-file-range/README.md

Command to start the download-file server sample.

```bash
./gradlew :download-file:run
```

--------------------------------

### Retrieving all installed authentication providers

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-auth.md

Example of retrieving all installed authentication providers using the `authProviders` property.

```kotlin
val providers = client.authProviders
```

--------------------------------

### Run server sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-upload-binary-data/README.md

Command to run the server sample from the repository's root folder.

```bash
./gradlew :post-raw-data:run
```

--------------------------------

### Run the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/css-dsl/README.md

Command to execute the sample project from the repository's root directory.

```bash
./gradlew :css-dsl:run
```

--------------------------------

### Installation

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-websocket-deflate.md

Example showing how to install the WebSocket Deflate extension for both client and server, including basic configuration for compression level and minimum frame size.

```kotlin
// For client and server
install(WebSockets) {
    extensions {
        install(WebSocketDeflateExtension) {
            /**
             * Compression level to use for [java.util.zip.Deflater].
             */
            compressionLevel = Deflater.DEFAULT_COMPRESSION

            /**
             * Prevent compressing small outgoing frames.
             */
            compressIfBiggerThan(bytes = 4 * 1024)
        }
    }
}
```

--------------------------------

### Install KtorClientTelemetry

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-opentelemetry.md

Example showing how to install the KtorClientTelemetry plugin and set the OpenTelemetry instance within a Ktor client configuration block.

```kotlin
import io.ktor.client.*
import io.ktor.client.engine.cio.*
import io.ktor.client.plugins.auth.*
//...

val client = HttpClient(CIO) {
    val openTelemetry = getOpenTelemetry(serviceName = "opentelemetry-ktor-client")

    install(KtorClientTelemetry) {
        setOpenTelemetry(openTelemetry)
    }
}
```

--------------------------------

### Running

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/json-kotlinx-openapi/README.md

Command to run the sample project.

```bash
./gradlew :json-kotlinx-openapi:run
```

--------------------------------

### Run the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/auth-basic/README.md

Command to execute the Ktor basic authentication sample project using Gradle.

```bash
./gradlew :auth-basic:run
```

--------------------------------

### Dokku deployment output

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/dokku.md

Example output shown while Dokku builds and starts the application.

```text
...
=====> Application deployed:
       http://<app-name>.<your-server>
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/custom-plugin-authorization/README.md

Command to run the Ktor sample project.

```bash
./gradlew :custom-plugin-authorization:run
```

--------------------------------

### Run server sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-upload/README.md

Command to run the server sample project.

```bash
./gradlew :upload-file:run
```

--------------------------------

### Creating a Netty server instance without starting it

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-engines.md

This example demonstrates how to create an EmbeddedServer instance using EngineMain.createServer() for Netty, allowing for additional initialization before starting the server manually.

```Kotlin
// Example using Netty
val server = io.ktor.server.netty.EngineMain.createServer(args)
// perform additional initialization, logging, instrumentation, etc.
server.start(wait = true)
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/custom-plugin-base-api/README.md

Command to execute the sample Ktor project.

```bash
./gradlew :custom-plugin-base-api:run
```

--------------------------------

### Run the static website sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/tutorial-website-static/README.md

Command to execute the sample Ktor project from the repository's root directory.

```bash
./gradlew :tutorial-website-static:run
```

--------------------------------

### Install and Use DoubleReceive Plugin

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-double-receive.md

Install the DoubleReceive plugin and then receive a request body multiple times within your application. This example shows how to enable logging of the request body and then access it again in a route handler.

```kotlin
install(DoubleReceive)
install(CallLogging) {
    level = Level.INFO
    filter { call -> call.request.path.startsWith("/") }
}
```

```kotlin
post("/login") {
    val requestBody = call.receiveText()
    println("Received request body: $requestBody")
    call.respondText("Login successful")
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/events/README.md

Command to execute the sample Ktor project.

```bash
./gradlew :events:run
```

--------------------------------

### Add Velocity tools

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-velocity.md

Example of installing `VelocityTools` and configuring it to add standard and custom Velocity tools.

```kotlin
install(VelocityTools) {
    engine {
        // Engine configuration
        setProperty("resource.loader", "string")
        addProperty("resource.loader.string.name", "myRepo")
        addProperty("resource.loader.string.class", StringResourceLoader::class.java.name)
        addProperty("resource.loader.string.repository.name", "myRepo")
    }
    addDefaultTools() // Add a default tool
    tool("foo", MyCustomTool::class.java) // Add a custom tool
}
```

--------------------------------

### Configure Sessions Plugin with a cookie

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-plugins.md

Example of installing and configuring the Sessions plugin to use a named cookie.

```kotlin
install(Sessions) {
    cookie<MyCookie>("MY_COOKIE")
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/json-kotlinx/README.md

Command to run the sample project using Gradle.

```bash
./gradlew :json-kotlinx:run
```

--------------------------------

### Running the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/auth-form-session/README.md

Command to execute the sample project from the repository's root directory.

```bash
./gradlew :auth-form-session:run
```

--------------------------------

### Enable HttpRequestLifecycle plugin

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/whats-new-340.md

Example of installing the HttpRequestLifecycle plugin and handling a long-running request that can be cancelled.

```kotlin
install(HttpRequestLifecycle) {
    cancelCallOnClose = true
}

routing {
    get("/long-process") {
        try {
            while (isActive) {
                delay(10_000)
                logger.info("Very important work.")
            }
            call.respond("Completed")
        } catch (e: CancellationException) {
            logger.info("Cleaning up resources.")
        }
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/auth-form-html-dsl/README.md

Command to execute the sample project using Gradle.

```bash
./gradlew :auth-form-html-dsl:run
```

--------------------------------

### Specify a provider name

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-auth.md

Example of installing basic and form authentication providers with specific names.

```kotlin
install(Authentication) {
    basic("auth-basic") {
        // [[[Configure basic authentication|server-basic-auth.md]]]
    }
    form("auth-form") {
        // [[[Configure form authentication|server-form-based-auth.md]]]
    }
    // ...
}
```

--------------------------------

### Configure API Key authentication

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/whats-new-340.md

Example of installing the Authentication plugin with an apiKey provider and protecting a route.

```kotlin
install(Authentication) {
    apiKey("my-api-key") {
        validate { apiKey ->
            if (apiKey == "secret-key") {
                UserIdPrincipal(apiKey)
            } else {
                null
            }
        }
    }
}

routing {
    authenticate {
        get("/") {
            val principal = call.principal<UserIdPrincipal>()!!
            call.respondText("Key: ${principal.key}")
        }
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/json-kotlinx-method-override/README.md

Command to run the sample project using Gradle.

```bash
./gradlew :json-kotlinx-method-override:run
```

--------------------------------

### Running the sample project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/auth-basic-hash-table/README.md

Command to execute the sample project from the repository's root directory.

```bash
./gradlew :auth-basic-hash-table:run
```

--------------------------------

### Determine uploaded file size

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-requests.md

Example of how to get the Content-Length header value inside the post handler to determine the uploaded file size.

```kotlin
post("/upload") {
    val contentLength = call.request.header(HttpHeaders.ContentLength)
    // ...
}
```

--------------------------------

### Running the Project

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/server-di/README.md

Command to run the Ktor server-di project using Gradle.

```bash
./gradlew :server-di:run
```

--------------------------------

### Customize Base Name for Metrics

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-metrics-dropwizard.md

Example of customizing the base name for Ktor metrics using the `baseName` property when installing the DropwizardMetrics feature.

```kotlin
install(DropwizardMetrics) {
    baseName = "my.prefix"
}
```

--------------------------------

### Replace existing DefaultRequest configuration using `replace`

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-default-request.md

Example demonstrating how to replace an already installed DefaultRequest configuration using the `replace` parameter.

```kotlin
val client = HttpClient(CIO) {
    defaultRequest(replace = true) {
        // this: DefaultRequestBuilder
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-validate-non-2xx-response/README.md

Command to execute the sample Ktor project.

```bash
./gradlew :client-validate-non-2xx-response:run
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/client-download-streaming/README.md

Command to execute the client-download-streaming sample.

```bash
./gradlew :client-download-streaming:run
```

--------------------------------

### Configure Basic authentication provider

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-auth.md

Example of configuring the basic authentication provider inside the Auth plugin installation block.

```kotlin
install(Auth) {
    basic {
        // Configure basic authentication
    }
}
```

--------------------------------

### Configure Basic Authentication Provider

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-ldap.md

Initial setup of the basic authentication provider within the Ktor `install` block, preparing for LDAP user validation.

```kotlin
import io.ktor.server.application.*
import io.ktor.server.auth.*
import io.ktor.server.auth.ldap.*
//...
install(Authentication) {
    basic {
        validate { credentials ->
            // Authenticate an LDAP user
        }
    }
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/conditional-headers/README.md

Command to execute the sample project.

```bash
./gradlew :conditional-headers:run
```

--------------------------------

### Attach OpenAPI metadata to a route

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/whats-new-340.md

Example of using the .describe {} extension function to add OpenAPI metadata to a GET route at runtime.

```kotlin
@OptIn(ExperimentalKtorApi::class)
get("/messages") {
    val query = call.parameters["q"]?.let(::parseQuery)
    call.respond(messageRepository.getMessages(query))
}.describe {
    parameters {
        query("q") {
            description = "An encoded query"
            required = false
        }
    }
    responses {
        HttpStatusCode.OK {
            description = "A list of messages"
            schema = jsonSchema<List<Message>>()
            extension("x-sample-message", testMessage)
        }
        HttpStatusCode.BadRequest {
            description = "Invalid query"
            ContentType.Text.Plain()
        }
    }
    summary = "get messages"
    description = "Retrieves a list of messages."
}
```

--------------------------------

### Running the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/autohead/README.md

Command to execute the sample project.

```bash
./gradlew :autohead:run
```

--------------------------------

### Configure SSE response body buffer globally

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/whats-new-330.md

Example of configuring the SSE diagnostic buffer globally when installing the SSE plugin.

```kotlin
install(SSE) {
    bufferPolicy = SSEBufferPolicy.LastEvents(10)
}
```

--------------------------------

### Run the sample

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/server-http-request-lifecycle/README.md

Command to run the sample Ktor project.

```bash
./gradlew :server-http-request-lifecycle:run
```

--------------------------------

### Replace existing DefaultRequest configuration using `installOrReplace`

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/client-default-request.md

Example demonstrating how to replace an already installed DefaultRequest configuration using the generic `installOrReplace()` function.

```kotlin
val client = HttpClient(CIO) {
    installOrReplace(DefaultRequest) {
        // this: DefaultRequestBuilder
    }
}
```

--------------------------------

### Run the sample application

Source: https://github.com/ktorio/ktor-documentation/blob/main/codeSnippets/snippets/auth-form-session-nested/README.md

Command to execute the sample application from the repository's root directory.

```bash
./gradlew :auth-form-session-nested:run
```

--------------------------------

### Serve static OpenAPI file

Source: https://github.com/ktorio/ktor-documentation/blob/main/topics/server-swagger-ui.md

The following example creates a GET endpoint at the swagger path and renders the Swagger UI from the provided OpenAPI specification file:

```kotlin
import io.ktor.server.plugins.swagger.*

// ...
routing {
    swaggerUI(path = "swagger", swaggerFile = "openapi/documentation.yaml")
}
```