do statement in flow control (DataWeave 2.0) November 27, 2021 Dataweave / Mule 4 / Mulesoft A do statement creates a scope in which new variables, functions, annotations, or namespaces can be declared and used.
else if Condition in flow (DataWeave 2.0) November 27, 2021 Dataweave / Mule 4 / Mulesoft You can chain several else expressions together within an if-else construct by incorporating else if.
if else Condition in Flow Control (DataWeave 2.0) November 27, 2021 Dataweave / Mule 4 / Mulesoft An if statement evaluates a conditional expression and returns the value under the if only if the conditional expression returns true. Otherwise, it returns the expression under else. Every if expression must have a matching else expression.
Flow Control November 27, 2021 Dataweave / Mule 4 / Mulesoft Flow control is used when you want to execute certain parts of your code in some situations, while not executing others.
Logical Operators November 27, 2021 Dataweave / Mule 4 / Mulesoft A logical operator is a symbol or word used to connect two or more expressions such that the value of the compound expression produced depends only on that of the original expressions and on the meaning of the operator.
Global & Local Variables In DataWeave 2.0 November 27, 2021 Dataweave / Mule 4 / Mulesoft We can create a global variable in the header using var directive. We need to give it a name and we can assign either a constant value or a lambda expression. Global variables can be referenced by their name from anywhere in the body of the DataWeave script.
Variables in DataWeave 2.0 (Mule 4) November 27, 2021 Dataweave / Mule 4 / Mulesoft Variables are a way to store values with a given name so they can be later reused from different parts of your code, making the code cleaner and sometimes even more performant as values are calculated once.
Error Handling in Mule 4 November 23, 2021 Dataweave / Mule 4 / Mulesoft An exception occurs when an unexpected event happens while processing. Exception (or error) handling is the process of responding to exceptions when a computer program runs.
Scatter-Gather Router November 21, 2021 Dataweave / Mule 4 / Mulesoft The Scatter-Gather component is a routing event processor that processes a Mule event through different parallel processing routes that contain different event processors.
Custom Metadata Selector (.^myCustomMetadata) November 21, 2021 Dataweave / Mule 4 / Mulesoft The following example uses userName.^myCustomMetadata to return the value of custom metadata that is defined as a variable (named userName) in the header of the script as a DataWeave script.