Merge pull request #62 from davidhiendl/use-slf4j-api

use slf4j api instead of direct logback dependency to avoid slf4j warnings about multiple bindings

Author: Wicpar

build.gradle

@@ -12,21 +12,21 @@ repositories {
 
 dependencies {
  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
- implementation "ch.qos.logback:logback-classic:$logback_version"
+ implementation "org.slf4j:slf4j-api:$slf4j_version"
  implementation "io.ktor:ktor-server-core:$ktor_version"
  implementation "io.ktor:ktor-server-host-common:$ktor_version"
  implementation "io.ktor:ktor-metrics:$ktor_version"
  implementation "io.ktor:ktor-server-sessions:$ktor_version"
- 
+
  implementation "io.ktor:ktor-jackson:$ktor_version" // needed for parameter parsing and multipart parsing
  implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.9.8" // needed for multipart parsing
  implementation 'org.webjars:swagger-ui:3.25.0'
- 
+
  implementation "org.reflections:reflections:0.9.11" // only used while initializing
- 
+
  testImplementation "io.ktor:ktor-server-netty:$ktor_version"
  testImplementation "io.ktor:ktor-server-test-host:$ktor_version"
- 
+ testImplementation "ch.qos.logback:logback-classic:$logback_version"
 }
 
 compileKotlin {

gradle.properties

@@ -1,4 +1,5 @@
 kotlin.code.style=official
 ktor_version=1.3.2
 logback_version=1.2.1
+slf4j_version=1.7.30
 kotlin_version=1.3.70