How to Handle Null in JSON Object in Python?

QASource Engineering Team | September 23, 2024

How to Handle Null in JSON Object in Python

Although JSON was originally based on JavaScript, its syntax is similar to that of Python dictionaries. In JSON, the NULL value is represented by the keyword "null", while in Python, the NULL is equivalent to the None keyword.

To manage null values in JSON using the Jackson library in Java, follow these steps:

  1. Add Jackson Dependency
    • Open your pom.xml file
    • Add the Jackson Library as a dependency to your project
  2. Import Jackson Annotations
    • In your Java class, import the required annotations from the Jackson library
  3. Apply the @JsonInclude Annotation
    • Use the @JsonInclude annotation with the Include.NON_NULL option on your class or specific fields to exclude null values from the JSON output

Example of Excluding Null Values from JSON Output

The fields with null values are removed in the example below, resulting in a cleaner JSON output.

Before:
{
"name" :"Sanitizer",
"productNo": null,
"targetArea" : null,
"SellingPrice":0.0
}
After using "@JsonInclude(value=Include.Non_Null)"
{
"name": "Sanitizer",
"SellingPrice":0.0
}

Handling null values effectively in JSON is crucial for producing clean and efficient data. Whether using Python or Java, methods can exclude these values from your JSON responses.

Disclaimer

This publication is for informational purposes only, and nothing contained in it should be considered legal advice. We expressly disclaim any warranty or responsibility for damages arising out of this information and encourage you to consult with legal counsel regarding your specific needs. We do not undertake any duty to update previously posted materials.

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