How to Nifi ExecuteScript return attribute without prefix u code python

Publicado em: 24 Novembro 2023
no canal de: CodeHelp
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Sure, I'd be happy to help you with that. Apache NiFi allows you to use ExecuteScript processors to execute custom scripts, including Python scripts. When using Python scripts with ExecuteScript, you may encounter an issue where the returned attributes have a 'u' prefix. This prefix is related to the Unicode representation in Python, and it may not be desired in NiFi attribute names. In this tutorial, I'll guide you through a solution to retrieve NiFi ExecuteScript attributes without the 'u' prefix in Python.
Now, let's write a Python script that retrieves attributes without the 'u' prefix.
Save your changes to the NiFi flow, and start the ExecuteScript processor.
In this example, we use the PyStreamCallback class to process the content of a flow file. The script assumes the content is in JSON format and removes the 'u' prefix from attribute names. Modify the script according to your data format and processing requirements.
Remember to adapt the script to your specific use case, especially if your data format or processing logic differs. The key part is converting the attributes to a Python dictionary and ensuring that attribute names are strings without the 'u' prefix.
I hope this tutorial helps you retrieve NiFi ExecuteScript attributes without the 'u' prefix in Python!
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