MuleSoft Certified Developer - Level 1 MAINTENANCE

• Describe the Mule event data structure.
• Use transformers to set event payloads, attributes, and variables.
• Write DataWeave expressions to access and modify event payloads, attributes, and variables.
• Enrich Mule events using target parameters.

Resources

• DEV:443 Module 1
• DEV:DIY4 Exercise 6-1, 7-1, and 7-2
• About Mule Event
• Set Payload
• Set Variable
• About the Transform Component
• About DataWeave
• Logger Component Example
• Enriching Data with Target Parameters

• Parameterize an application using property placeholders.
• Define and reuse global configurations in an application.
• Break an application into multiple flows using private flows, subflows, and the Flow Reference component.
• Specify what data (payload, attributes, variables) is persisted between flows when a Flow Reference is used.
• Specify what data (payload, attributes, variables) is persisted between flows when a Mule event crosses a connection boundary.
• Specify what data (payload, attributes, variables) exists in a flow before and after a call in the middle of a flow to an external resource.

Resources

• DEV:443 Module 1
• DEV:443 Module 2
• DEV:DIY4 Exercise 7-1 and 7-2
• To Configure Property Placeholders for Mule Apps
• Global Elements
• Flow and Subflow Components
• About Flow Ref

• Manually create a RESTful interface for a Mule application.
• Generate a REST Connector from a RAML specification.
• Describe the features and benefits of APIkit.
• Use APIkit to create implementation flows from a RAML file.
• Describe how requests are routed through flows generated by APIkit.

Resources

• DEV:DIY4 Exercise 4-1
• Converting a RAML to a Connector Using REST Connect
• Workflow: Creating Testing, and Implementing an API
• HTTP Request Configuration Reference: Adding Custom Parameters

• Use the Choice router to route events based on conditional logic.
• Use the Scatter-Gather router to multicast events.
• Validate data using the Validation module.

Resources

• DEV:443 Module 4
• DEV:DIY4 Exercise 9-1
• Choice Router
• DataWeave Operators
• Flow Control in DataWeave
• About Scatter-Gather
• Validation Module

• Describe the default error handling in a Mule application.
• Define a custom global default error handler for an application and identify in what situations it will be used.
• Compare and contrast how the On Error Continue and On Error Propagate scopes work.
• Create one or more error handlers for a flow.
• Use the Try scope to specify error handlers for one or more event processors.
• Describe the data structure of the Mule Error object.
• Map errors to custom application errors.

Resources

• DEV:443 Module 5
• DEV:DIY4 Exercise 10-1
• Introduction to Mule 4: Error Handlers
• About Error Handling
• About On-Error Scopes
• Try Scope
• About the Mule Error
• Introduction to Mule 4: Error Mapping

• Write DataWeave scripts to convert JSON, XML, and Java data structures to different data structures and data types.
• Use DataWeave functions.
• Define and use DataWeave variables, functions, and modules.
• Define and use custom data types.
• Apply correct DataWeave syntax to coerce data types.
• Apply correct DataWeave syntax to format strings, numbers, and dates.
• Call Mule flows from a DataWeave script.

Resources

• DEV:443 Module 6
• DEV:DIY4 Exercise 11-1
• Data Formats Supported by DataWeave
• Defining DataWeave Functions
• Creating Custom Modules and Mappings
• About DataWeave Variables
• Using lookup To Call External Flows
• About Type Coercion with DataWeave

• Retrieve data from a Database using the Database connector.
• Create parameterized SQL queries for the Database connector.
• Retrieve data from a REST service using HTTP Request or a REST Connector.
• Use a Web Service Consumer connector to consume SOAP web services.
• Use the Transform Message component to pass arguments to a SOAP web service.
• List, read, and write local files using the File connector.
• List, read, and write remote files using the FTP connector.
• Use the JMS connector to publish and listen for JMS messages.

Resources

• DEV:443 Module 1
• DEV:443 Module 3
• DEV:443 Module 7
• DEV:DIY4 Exercise 4-1, 8-1, 12-1, and 12-2
• Database Connector
• About the File Connector
• About the FTP Connector
• About the JMS Connector

• List and compare and contrast the methods for processing individual records in a collection.
• Explain how Mule events are processed by the For Each scope.
• Use the For Each scope to process records.
• Explain how Mule events are processed by the Batch Job scope.
• Use a Batch Job with Batch Steps and a Batch Aggregator to process records.
• Use the Scheduler component to trigger a flow.
• Use connector listeners to trigger flows.
• Describe the features, benefits, and process to use watermarking.
• Describe the features, benefits, and process to use automatic watermarking vs. manual watermarking.
• Use connectors with automatic watermarking capabilities.
• Persist data between flow executions using the Object Store.

Resources

• DEV:443 Module 7
• DEV:DIY4 Exercise 13-1
• For Each Scope
• About Batch Job
• Scheduler Endpoint (Trigger)
• Trigger a Flow When a New File is Created or Modified
• Database Connector Documentation Reference: On Table Row Listener
• Object Store Connector

• Use breakpoints to inspect a Mule event during runtime.
• Install missing Maven dependencies.
• Read and decipher Mule log error messages.

Resources

• DEV:DIY4 Exercise 6-1 and Walkthrough
• DEV:DIY4 all exercises

• Package Mule applications for deployment.
• Deploy applications to CloudHub.
• Use CloudHub properties to ensure deployment success.
• Create and deploy API proxies.
• Connect an API implementation to API Manager using autodiscovery.
• Use policies, including client ID enforcement, to secure an API.
• Create SLA tiers and apply SLA based policies.

Resources

• DEV:DIY4 Exercise 5-1 and 5-2
• Deploying to CloudHub
• Configuring API Autodiscovery in a Mule 4 Application
• About Policies
• To Apply a Policy and SLA Tier