https://github.com/kimar/ktor-middleware

A dead-simple Middleware Implementation for the Ktor Web Framework
https://github.com/kimar/ktor-middleware

backend kotlin ktor maven middleware webapp

Last synced: 9 days ago
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A dead-simple Middleware Implementation for the Ktor Web Framework

• Host: GitHub
• URL: https://github.com/kimar/ktor-middleware
• Owner: kimar
• Created: 2017-10-03T10:10:11.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2021-01-19T10:44:55.000Z (almost 4 years ago)
• Last Synced: 2024-10-08T00:42:48.379Z (about 1 month ago)
• Topics: backend, kotlin, ktor, maven, middleware, webapp
• Language: Kotlin
• Homepage:
• Size: 32.2 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# Ktor-Middleware

## A dead-simple middleware for Kotlin/Ktor

### Installation

### pom.xml

```java

	com.github.kimar

        Ktor-Middleware

        0.2.2

```

### build.gradle

```java

compile 'com.github.kimar:Ktor-Middleware:0.2.2'

```

### Usage

#### Inside your route handler

Let's assume you've got an `upload` route you'd like to secure using `BearerAuthentication`, one way would be to install this routing using `Ktor-Middleware` which will then, in turn, automatically filter all failed middlewares and report and error accordingly, e.g.:

```java

fun Application.module() {

	...

	install(Routing) {

		upload(listOf(BearerAuthentication("secret_token"))

	}

}

fun Routing.upload(middlewares: List>): Route {

    return post("upload") {

        val eval = middlewares.evaluate(this)

        when(eval.success) {

            true -> success(call)

            else -> call.respondText(eval.result!!.gsonify(), ContentType.Application.Json)

        }

    }

}

private fun success(call: ApplicationCall) {

	...

}

```