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How to Filter Emojis from a String in MuleSoft Dataweave 2.0

Date de publication: Dec 9, 2025
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GOAL

The goal of this KB is to go through the steps to remove emojis from a String using Dataweave. This could be useful in the scenario that a request is coming into your API with an emoji in the payload, and your source system is unable to parse it, which could cause some issues.
Étapes

In order to filter out emojis you can use the MuleSoft Dataweave replace function. See the sample DW script below:

%dw 2.0
output application/json
var testVal = "test👻"
---
{
    "testKey": testVal replace /[^a-z0-9A-Z]/ with ""
}


And the output would look something like this:

{
  "testKey": "test"
}



 

Numéro d’article de la base de connaissances

001115812

 
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Salesforce Help | Article