fix(tracing): remove duplicate and fix span prefix name

docs/workshop.md

@@ -1631,119 +1631,12 @@ import io.opentelemetry.instrumentation.annotations.WithSpan;
 public class PaymentService {
     // ...
 
-    @WithSpan("Payment processing method")
-    private void process(PaymentProcessingContext context) {
-        //...
-    }
-
-    @WithSpan("Payment store method")
-    private void store(PaymentProcessingContext context) {
-        //...
-    }
-```
-
-📝 We can also provide additional information to the span, such as method parameters using the ``@SpanAttribute`` annotation:
-
-```java
-// ...
-import io.opentelemetry.instrumentation.annotations.SpanAttribute;
-
-@Service
-public class PaymentService {
-    // ...
-
     @WithSpan("RivieraDev: Payment processing method")
-    private void process(@SpanAttribute("context") PaymentProcessingContext context) { // <-- HERE
-        // ...
-    }
-
-    @WithSpan("RivieraDev: Payment store method")
-    private void store(@SpanAttribute("context") PaymentProcessingContext context) { // <-- HERE
-        // ...
-    }
-```
-
-This will provide the whole PaymentProcessingContext into the trace.
-
-#### 3. Build and redeploy
-
-🛠️ As we did before:
-
-```bash
-$ docker compose build easypay-service
-$ docker compose up -d easypay-service
-```
-
-#### 4. Test it!
-
-🛠️ Generate some payments:
-
-```bash
-$ http POST :8080/api/easypay/payments posId=POS-01 cardNumber=5555567898780008 expiryDate=789456123 amount:=40000
-```
-
-👀 Go back to Grafana and try to find your new traces using what you've learned previously. Observe the spans you added.
-
-> aside negative
->
-> It may take some time for `easypay-service` to be registered in the service discovery and be available from the API gateway.  
-> Similarly, your traces being ingested by Tempo might also take some time. Patience is key 😅
-
-Starting from this moment, you should no longer see traces related to `actuator/health` or `actuator/prometheus` endpoints.
-
-### Custom Traces
-
-Just like metrics, it is also possible to add your own spans on arbitrary methods to provide more business value to the observability of your application.
-
-Let’s return to our code!
-
-#### Objectives
-
-We want to add new spans to the traces generated in the `easypay-service` application to track payment processing and store events.
-
-To achieve this goal, we will create new spans when the `process` and `store` methods of the `com.worldline.easypay.payment.control.PaymentService` class in the `easypay-service` module are invoked.
-
-As a reminder, this class is the central component responsible for processing payments. It provides the public method `accept`, which delegates its responsibilities to two private methods:
-* `process`: which handles all the processing of the payment, including validation and calling third parties.
-* `store`: which saves the processing result in the database.
-
-#### 1. Add Required Dependencies
-
-We need to add the `io.opentelemetry.instrumentation:opentelemetry-instrumentation-annotations` dependency to our module to access some useful annotations.
-
-👀 This has already been done in advance for this workshop. The following dependencies were added to the Gradle build file (`build.gradle.kts`) of the `easypay-service` module:
-
-```kotlin
-dependencies {
-  //...
-
-	// Add opentelemetry support
-	implementation(platform("io.opentelemetry:opentelemetry-bom:1.38.0"))
-	implementation("io.opentelemetry:opentelemetry-api")
-	implementation("io.opentelemetry.instrumentation:opentelemetry-instrumentation-annotations:2.5.0")
-
-  // ...
-}
-```
-
-#### 2. Add Custom Spans
-
-📝 To add new spans based on methods, we can simply use the `@WithSpan` Java annotation. When a traced transaction invokes the annotated method, a new span will be created. Here’s how to do it:
-
-```java
-// ...
-import io.opentelemetry.instrumentation.annotations.WithSpan;
-
-@Service
-public class PaymentService {
-    // ...
-
-    @WithSpan("Payment processing method")
     private void process(PaymentProcessingContext context) {
         //...
     }
 
-    @WithSpan("Payment store method")
+    @WithSpan("RivieraDev: Payment store method")
     private void store(PaymentProcessingContext context) {
         //...
     }