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POST
/
categories
Create Category
curl --request POST \
  --url https://api.example.com/categories \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "id": 123
}
'
{
  "200": {},
  "400": {},
  "500": {},
  "id": 123,
  "name": "<string>"
}

​
Description

This endpoint creates a new category in the system. The category name must be unique across all categories. Upon successful creation, the category is persisted to the database and returned with its generated ID.

​
Request Body

​
name
string
required
The name of the category. Must be unique across all categories in the system.
​
id
long
Optional. If not provided, the ID will be auto-generated by the database.

​
Response

Returns the created category object with its generated ID.
​
id
long
Auto-generated unique identifier for the category
​
name
string
The category name as provided in the request

​
HTTP Status Codes

​
200
OK
Category successfully created and returned
​
400
Bad Request
Invalid request body or duplicate category name
​
500
Internal Server Error
An error occurred while processing the request

​
Example Request

curl -X POST http://localhost:8080/categories \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Sports Equipment"
  }'

​
Example Response

​
Success (200 OK)

{
  "id": 4,
  "name": "Sports Equipment"
}

​
Error (400 Bad Request - Duplicate Name)

{
  "timestamp": "2026-03-03T10:15:30.000+00:00",
  "status": 400,
  "error": "Bad Request",
  "message": "Category name must be unique",
  "path": "/categories"
}

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