How can you change the runtime changes using mediation primitive? in MuleSoft 90

  How can you change the runtime changes using mediation primitive? in MuleSoft

I'd be glad to provide information on runtime changes in MuleSoft 4, but it's important to clarify that mediation primitives are not the primary mechanism for achieving such modifications. Here are the accurate approaches for runtime changes in MuleSoft 4:

1. Property Placeholders:

• Employ property placeholders within your configuration files (.xml) or properties files (.properties) to hold values that can be changed at runtime:
  XML
  <flow name="myFlow">
      <http:inbound-endpoint path="/my-endpoint" method="GET">
          <property-placeholder:config file="myProps.properties" />
      </http:inbound-endpoint>
      <set-payload value="${myProperty}" />
  </flow>
  
  In myProps.properties:
  Properties
  myProperty=defaultValue
  
  

• Update the property value in myProps.properties to reflect the desired change, and MuleSoft 4 will automatically pick it up at runtime (no server restart necessary).

2. Secure Properties:

• Utilize MuleSoft's Secure Properties feature to manage sensitive information in a centralized, secure location (Vault, for instance):
  XML
  <flow name="myFlow">
      <http:inbound-endpoint path="/my-endpoint" method="GET">
          <secure-property:config name="mySecureProperty" />
      </http:inbound-endpoint>
      <set-payload value="${vault:mySecureProperty}" />
  </flow>
  
  

• Update the secured property value within your chosen secure store, and MuleSoft 4 will access it securely.

3. Configuration Modules:

• Create custom configuration modules (Java or Spring XML) to encapsulate application logic or configuration that can be swapped at runtime:

• Implement a Java class or Spring XML file containing the desired configuration.

• Configure a configuration-module element in your Mule flow to reference the module.

• Change the module implementation or configuration file to modify your application's behavior.

4. Anypoint Runtime Manager (ARM):

• Leverage ARM's capabilities to manage and deploy Mule applications, configurations, and properties dynamically.

• Create and manage environments (e.g., dev, test, prod) with different configurations in ARM.

• Switch between environments to effectively implement runtime changes in your Mule applications.

Additional Considerations:

• While not directly used for runtime changes, mediation primitives (like transformers, filters) can be dynamically configured or chained within flows using features like dynamic-transformer or dynamic-router. However, this doesn't directly modify the flow configuration itself.

• Choose the approach that best aligns with your specific needs, considering factors like security, ease of management, and desired level of control.

By effectively utilizing these strategies, you can implement runtime changes in MuleSoft 4 applications without requiring server restarts, enhancing flexibility and responsiveness to changing requirements.