HTTP / REST

Istek provides a full-featured HTTP client supporting all standard methods and advanced features.

Supported Methods

Method	Description
GET	Retrieve resources
POST	Create new resources
PUT	Replace existing resources
PATCH	Partially update resources
DELETE	Remove resources
HEAD	Get headers only
OPTIONS	Get allowed methods

Making a Request

Basic GET Request

1. Select HTTP from the protocol dropdown
2. Choose GET method
3. Enter URL: https://api.example.com/users
4. Click Run

POST Request with Body

1. Select POST method
2. Enter URL: https://api.example.com/users
3. Go to Body tab
4. Select JSON content type
5. Enter your JSON body:

{
  "name": "John Doe",
  "email": "john@example.com"
}

6. Click Run

Query Parameters

Add query parameters in the Params tab:

Key	Value
page	1
limit	10
sort	name

These will be appended to your URL: ?page=1&limit=10&sort=name

Required Parameters

Parameters imported from OpenAPI specs may be marked as required. These are indicated with a red badge and must have a value before sending.

Headers

Common headers can be added in the Headers tab:

Header	Value
Authorization	Bearer {{TOKEN}}
Content-Type	application/json
Accept	application/json

tip

When you select a body type (JSON, XML, etc.), Istek automatically adds the appropriate Content-Type header.

Body Types

Type	Content-Type	Use Case
JSON	application/json	Most REST APIs
XML	application/xml	SOAP, legacy APIs
HTML	text/html	HTML content
Raw	text/plain	Plain text

JSON Formatting

When using JSON body:

• Format: Prettify your JSON with proper indentation
• Minify: Compress JSON to a single line
• Syntax errors are highlighted in real-time

Response

The response panel shows:

• Status Code: Color-coded (green for 2xx, yellow for 3xx, red for 4xx/5xx)
• Response Time: In milliseconds
• Size: Response body size
• Headers: Response headers in a collapsible section
• Body: Syntax-highlighted response with JSON formatting

Using Variables

Replace hardcoded values with variables:

URL: {{API_URL}}/users/{{USER_ID}}
Header: Authorization: Bearer {{AUTH_TOKEN}}
Body: {"environment": "{{ENV_NAME}}"}

Variables are replaced when you click Run.

Examples

Playground Example

Using the built-in playground:

Method: GET
URL: http://localhost:19510/api/products

Response:

{
  "success": true,
  "data": [
    {
      "id": 1,
      "name": "Laptop Pro",
      "price": 1299.99,
      "category": "Electronics"
    }
  ]
}

Create Product

Method: POST
URL: http://localhost:19510/api/products
Body:
{
  "name": "New Product",
  "price": 99.99,
  "category": "Gadgets",
  "inStock": true
}