[SCALA-568] Point gatling to a scala REST API

Author: bpstelios10

scala-gatling/README.md

@@ -2,5 +2,9 @@
 - [Testing With Gatling Using Scala]()
 
 ### Gatling Executions
-compile tests: `sbt test:compile`
-then run the simulation: `sbt 'Gatling/testOnly com.baeldung.gatling.PeakLoadSimulation'`
+From this module's folder, we first compile tests: `sbt test:compile`
+
+Then run the simulation: `sbt 'Gatling/testOnly com.baeldung.gatling.PeakLoadSimulation'`
+
+**Notes**: in order to spin-up the right API this example uses, we also need to start the server:
+`sbt resApi/run` from root folder

scala-gatling/src/test/scala/com/baeldung/gatling/PeakLoadSimulation.scala

@@ -9,14 +9,14 @@ class PeakLoadSimulation extends Simulation {
   setUp(
     getScenario(
       "getExistingEndpoint",
-      simpleRequest("request_status_endpoint", "/health/status", 200),
+      simpleRequest("request_status_endpoint", "/todo", 200),
       50,
       10,
       60
     ),
     getScenario(
       "nonExistingEndpoint",
-      simpleRequest("request_wrong_endpoint", "/health/status1", 200),
+      simpleRequest("request_wrong_endpoint", "/not-todo", 200),
       5,
       10,
       60

scala-gatling/src/test/scala/com/baeldung/gatling/ScenariosProvider.scala

@@ -9,7 +9,7 @@ import scala.language.postfixOps
 object ScenariosProvider {
 
   private val httpProtocol =
-    http.baseUrl("http://localhost:8080").disableCaching.disableFollowRedirect
+    http.baseUrl("http://localhost:9000").disableCaching.disableFollowRedirect
 
   def getScenario(
     scenarioName: String,