Seamus  Quitzon

Seamus Quitzon

1604041980

Enable/Disable Null Fields in a JSON Response

Problem

We need to have a SWITCH to enable or disable the inclusion of NULL fields in the API Response in the form of property:

Solution

  • In this example, ‘RegistationResponse’ is the response object for our API. This is the object in which we want to use the ‘Enable/Disable Null fields’ flag so that the response contains NULL fields or not based on the property ‘config.response.format.include.null’ present in the application.properties file:

  • Declare the property ‘config.response.format.include.null’ in application.properties file:

  • Bind this property to a class-level property so that the value can be read:

  • Implement the actual logic to include nulls based on the property value by:

  • Creating an instance of com.fasterxml.jackson.databind.ObjectMapper.

  • Setting SerializationInclusion property of the created mapper to Include.NON_NULL if the global property value is false, otherwise set to Include.ALWAYS.

  • Serializing the Response object to a String using the mapper & return the String. Make sure to handle JsonProcessingException.

See below for the actual code snippet to be added while constructing the JSON Response as part of the API implementation:

Where regRespStr is the JSON String with NULL exclusion/inclusion applied.

Source code is available in GitHub @ this location.

#java #tutorial #api #spring boot

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Enable/Disable Null Fields in a JSON Response
Brandon  Adams

Brandon Adams

1625637060

What is JSON? | JSON Objects and JSON Arrays | Working with JSONs Tutorial

In this video, we work with JSONs, which are a common data format for most web services (i.e. APIs). Thank you for watching and happy coding!

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What is an API?
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https://chrome.google.com/webstore/detail/json-formatter/bcjindcccaagfpapjjmafapmmgkkhgoa?hl=en

Endpoint Example
http://maps.googleapis.com/maps/api/geocode/json?address=13+East+60th+Street+New+York,+NY

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#jsons #json arrays #json objects #what is json #jsons tutorial #blondiebytes

Autumn  Blick

Autumn Blick

1593251880

JSON Parsing in Android - Step by Step Implementation

JSON Structures in Android

JSON uses two types of brackets that are as follows:

  • [] – To declare the elements of Array in JSON, they’re written in square brackets.
  • {} – To create JSON objects, the elements are written in curly brackets.

JSON has the following types of structures that are:

1. JSON Objects

The elements inside the curly brackets are known as Objects.

2. JSON Array

A list of values, known as Arrays.

3. JSON Key-Value

This data is stored as a pair of keys and values. Here the keys can be a name, a number for which the values can be Seema, 98767586 etc.

Why JSON Parsing in Android over XML?

Let us see some reasons for why to choose JSON over XML:

  • It is much easier and quicker with high performance
  • It can use arrays
  • Its libraries do not depend on other libraries
  • The codes written in JSON are short, clean and easy to understand
  • It is free to open use and open-source tool
  • In JSON value retrieval is easy
  • It has a fully automated way of serializing/deserializing JavaScript.
  • It is supported by many Ajax toolkits and most of the backend technologies.

Examples of XML and JSON

Let us see the code difference of JSON and XML files:

XML Example:

<?xml version= “1.0” encoding= “” ?>
<student>
        <student>
  <name> Sia Sharma</name>
  <city> Chandigarh</city>
         </student>
        <student>
  <name>Dimple D’souza</name>
  <city> Nagpur</city>
         </student>
      <student>
  <name>Anna Jones</name>
  <city> Mumbai</city>
         </student>
  </student>

JSON Example:

{ “students”: [
{ “name”: “Sia Sharma”, “city”: “Chandigarh”},
{ “name”: “Prachi D’Souza”, “city”: “Nagpur”},
{ “name”: “Annas Jones”, “city”: “Mumbai”}
]}

I hope the difference is all clear in front of you. This is how simple JSON is and how easily it could be understood.

#android tutorials #json parsing in android #json parsing in android example #json parsing in android step by step #json parsing with android #read json file android

lalit tomar

1598687041

JSON with Python - copyassignment.com

Hello friends, do you want to learn how to use JSON with Python? If Yes, then I recommend you must go to this website as I found this tutorial best to learn everything you need to learn hot to work on JSON with Python.
Link==> https://copyassignment.com/python/json-with-python/

#python #json with python #json #json

Seamus  Quitzon

Seamus Quitzon

1604041980

Enable/Disable Null Fields in a JSON Response

Problem

We need to have a SWITCH to enable or disable the inclusion of NULL fields in the API Response in the form of property:

Solution

  • In this example, ‘RegistationResponse’ is the response object for our API. This is the object in which we want to use the ‘Enable/Disable Null fields’ flag so that the response contains NULL fields or not based on the property ‘config.response.format.include.null’ present in the application.properties file:

  • Declare the property ‘config.response.format.include.null’ in application.properties file:

  • Bind this property to a class-level property so that the value can be read:

  • Implement the actual logic to include nulls based on the property value by:

  • Creating an instance of com.fasterxml.jackson.databind.ObjectMapper.

  • Setting SerializationInclusion property of the created mapper to Include.NON_NULL if the global property value is false, otherwise set to Include.ALWAYS.

  • Serializing the Response object to a String using the mapper & return the String. Make sure to handle JsonProcessingException.

See below for the actual code snippet to be added while constructing the JSON Response as part of the API implementation:

Where regRespStr is the JSON String with NULL exclusion/inclusion applied.

Source code is available in GitHub @ this location.

#java #tutorial #api #spring boot

Osiki  Douglas

Osiki Douglas

1624639560

Python NULL - How to identify null values in Python?

Let’s understand what does Python null mean and what is the NONE type. In many programming languages, ‘null‘ is used to denote an empty variable, or a pointer that points to nothing. ‘null’ basically equals 0. Whereas in Python, there is no ‘null’ keyword available. Instead, ‘None‘ is used, which is an object, for this purpose.

Table of Contents

What is Python null?

Declaring null variables in Python

How to check if a variable is none in Python?

Conclusion

#python oops #null in python #python null #python null - how to identify null values in python? #identify