Mulesoft Developer

Core Knowledge Requirements

1. Spring Boot

• Understanding of how Spring Boot APIs are structured (controllers, services, repositories).

2. MuleSoft Fundamentals

• Proficiency in

  Mule 4

  (latest version) and

  Anypoint Studio

  .
• Understanding of

  Mule flows

  ,

  connectors

  ,

  transformers

  , and

  error handling

  .
• Experience with

  API-led connectivity

  and

  RAML/OAS (OpenAPI Specification)

  for designing APIs.

Technical Skills Needed

3. Endpoint Mapping & API Design

• Ability to analyze Spring Boot @RestController endpoints and map them to MuleSoft

  HTTP Listener

  components.
• Translate Java method logic into MuleSoft

  flows

  using

  DataWeave

  for transformations.
• Recreate request/response structures, headers, query parameters, and payloads.

4. Data Transformation

• Strong skills in

  DataWeave

  (MuleSofts data transformation language) to replace Java-based transformations.
• Ability to handle JSON, XML, CSV, and other formats.

5. Security & Authentication

• Reimplement security mechanisms (e.g., OAuth2, JWT, Basic Auth) in MuleSoft using

  Policies

  or

  custom flows

  .
• Understand how Spring Security is configured and replicate equivalent behavior in Mule.

6. Integration & Connectivity

• Replace Spring Boot integrations (e.g., JDBC, REST clients, Kafka) with MuleSoft

  connectors

  (e.g., Database Connector, HTTP Request Connector, JMS).
• Configure external systems and services in MuleSoft using

  Global Elements

  .

7. Testing & Validation

• Use

  MUnit

  for unit testing Mule flows.
• Validate that the MuleSoft implementation matches the behavior of the original Spring Boot API.

Artifacts to Extract from Spring Boot App

To aid the migration, the developer should extract:

• application. properties or application. YML for configuration.
• Controller classes (@RestController) for endpoint definitions.
• Service classes for business logic.
• DTOs and models for payload structure.
• Exception handling logic.

Tools & Environment Setup

• Anypoint Studio

  (MuleSoft IDE)

• Mule Runtime

  (local or cloud)

• Postman or Insomnia

  for API testing

• Git

  for version control

• CI/CD tools

  (e.g., GitHub Actions)