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Question 94 - MCD - Level 1 discussion

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A Utlility.dwl is located in a Mule project at src/main/resources/modules. The Utility.dwl file defines a function named encryptString that encrypts a String What is the correct DataWeave to call the encryptString function in a Transform Message component?

A.
1. %dw 2.0 2. output application/json 3. import modules::Utility 4. --- 5. Utility::encryptString( 'John Smith' )
Answers
A.
1. %dw 2.0 2. output application/json 3. import modules::Utility 4. --- 5. Utility::encryptString( 'John Smith' )
B.
1. %dw 2.0 2. output application/json 3. import modules::Utility 4. --- 5. encryptString( 'John Smith' )
Answers
B.
1. %dw 2.0 2. output application/json 3. import modules::Utility 4. --- 5. encryptString( 'John Smith' )
C.
1. %dw 2.0 2. output application/json 3. import modules.Utility 4. --- 5. encryptString( 'John Smith' )
Answers
C.
1. %dw 2.0 2. output application/json 3. import modules.Utility 4. --- 5. encryptString( 'John Smith' )
D.
1. %dw 2.0 2. output application/json 3. import modules.Utility 4. --- 5. Utility.encryptString( 'John Smith' )
Answers
D.
1. %dw 2.0 2. output application/json 3. import modules.Utility 4. --- 5. Utility.encryptString( 'John Smith' )
Suggested answer: B

Explanation:

Correct answer is

%dw 2.0

output application/json

import modules::Utility

---

Utility::encryptString( 'John Smith' )

DataWeave 2.0 functions are packaged in modules. Before you begin, note that DataWeave 2.0 is for Mule 4 apps. For Mule 3 apps, refer to DataWeave Operators in the Mule 3.9 documentation. For other Mule versions, you can use the version selector for the Mule Runtime table of contents.

Functions in the Core (dw::Core) module are imported automatically into your DataWeave scripts. To use other modules, you need to import the module or functions you want to use by adding the import directive to the head of your DataWeave script, for example:

import dw::core::Strings

import camelize, capitalize from dw::core::Strings

import * from dw::core::Strings

The way you import a module impacts the way you need to call its functions from a DataWeave script. If the directive does not list specific functions to import or use * from to import all functions from a function module, you need to specify the module when you call the function from your script. For example, this import directive does not identify any functions to import from the String module, so it calls the pluralize function like this: Strings::pluralize('box').

Transform

%dw 2.0

import dw::core::Strings

output application/json

---

{ 'plural': Strings::pluralize('box') }

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asked 18/09/2024
Patrick Evelinton de Souza Borges
33 questions
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