Filtering by Resource Type

Websites load hundreds of resources every time a webpage is loaded. Filtering through all of these requests is critical to identifying and capturing Internal APIs.

Nimble's Network Capture can filter requests by one or more resource types to help isolate relevant network requests.

Example

Use the resource_type field to filter for specific resources:

curl -X POST 'https://api.webit.live/api/v1/realtime/web' \
--header 'Authorization: Basic <credential string>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "url": "https://www.example.com/",
    "render": true,
    "network_capture": [
        {
            "method": "GET",
            "resource_type": [
                "xhr", "script"
            ]
        }
    ]
}'

In the above example, we request to capture all XHR and Javascript requests peformed on the target data source's page.

Supported Resource Types

Some commonly used resource types include:

• xhr - XHR is an object used to interact with a server. It allows retrieving data from the server without triggering a full page refresh.

• fetch - Fetch is a method that provides an easy, logical way to fetch resources asynchronously across the network.

• stylesheet - This element corresponds to a Cascading Style Sheet.

• script - This element is used to embed executable code or data; this is typically used to embed or refer to JavaScript code.

• document - returns the main HTML document.

Click here for the full list of all supported resource types

'document',
'stylesheet',
'image',
'media',
'font',
'script',
'texttrack',
'xhr',
'fetch',
'prefetch',
'eventsource',
'webSocket',
'manifest',
'signedexchange',
'ping',
'cspviolationreport',
'preflight',
'other'

Multiple resource types can be used together by separating them with a comma:

"resource_type":["xhr", "fetch", "script"]

Response

The above request would return the following response:

{
    "url": "https://www.example.com/",
    "status": "success",
    "query_time": "2024-04-04T11:10:43.567Z",
    "html_content": "...",
    "status_code": 200,
    "headers": {
        ...
    },
    "input_url": "https://www.example.com/",
    "network_capture": [
        {
            "filter": {
                "method": "GET",
                "resource_type": [
                    "xhr",
                    "script"
                ]
            },
            "results": [
                {
                    "request": {
                        "resource_type": "script",
                        "method": "GET",
                        "url": "https://www.example.com/script/0001.js",
                        "headers": {
                            ...
                        }
                    },
                    "response": {
                        "status": 200,
                        "status_text": "",
                        "headers": {
                            ...
                        },
                        "serialization": "none",
			"body": "..."
                    }
                },
                {
                    "request": {
                        "resource_type": "xhr",
                        "method": "GET",
                        "url": "https://www.example.com/script/0002.js",
                        "headers": {
                            ...
                        }
                    },
                    "response": {
                        "status": 200,
                        "status_text": "",
                        "headers": {
                           ...
                        },
                        "serialization": "none",
			"body": "..."
                    }
                }
            ]
        }
    ]
}