JSON to CSV

Converting JSON to CSV involves transforming JSON data into a comma-separated values (CSV) format. CSV files are commonly used for storing tabular data in a plain text format, with each row representing a record and each column representing a field.

Here are the steps to convert JSON to CSV:

1. Parse JSON Data: Begin by parsing the JSON data into a structured format that can be easily manipulated.

2. Identify Columns: Identify the fields or keys from the JSON data that will become the columns in the CSV file.

3. Create CSV Header: Create a header row for the CSV file containing the column names.

4. Populate CSV Rows: Traverse the JSON data and extract the values corresponding to each column. Write these values as rows in the CSV file, separating each field with a comma.

5. Output CSV: Serialize the CSV data into a string representation or write it to a file.

Uses of JSON to CSV Conversion:

• Data Export: Convert JSON data to CSV format for exporting data from web applications, databases, or APIs to be used in spreadsheet software like Excel.
• Data Analysis: CSV files are commonly used for data analysis and visualization in tools like Excel, Tableau, or Python's pandas library.
• Interoperability: CSV is a widely supported format, making it easy to exchange data between different systems and platforms.

Example Inputs and Outputs:

1. Input JSON:

   json
   [ {"id": 1, "name": "Product A", "price": 100}, {"id": 2, "name": "Product B", "price": 200}]

   Output CSV:

   css
   id,name,price1,Product A,1002,Product B,200

2. Input JSON:

   json
   { "employees": [ {"name": "Alice", "department": "HR"}, {"name": "Bob", "department": "Engineering"} ]}

   Output CSV:

   name,departmentAlice,HRBob,Engineering

3. Input JSON:

   json
   { "person": { "name": "John Doe", "age": 30, "city": "New York" }}

   Output CSV:

   sql
   name,age,cityJohn Doe,30,New York

In these examples, the JSON data is transformed into CSV format, with each object or record in the JSON data becoming a row in the CSV file. Each field in the JSON data corresponds to a column in the CSV file, with values separated by commas.