> ## Documentation Index
> Fetch the complete documentation index at: https://sensible.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Try a webhook

For asynchronous extractions, you can retrieve extraction results using either API endpoints or a webhook. A webhook allows you to receive the extraction as a push, rather than waiting for responses from API endpoints.

For this tutorial, let's try a webhook in combination with the `/extract_from_url` endpoint. Note you can also use the webhook with the `/generate_upload_url` endpoint and other asynchronous endpoints.

## Prerequisites

See [prerequisites](/api-guides/api-tutorial/index-api-tutorial#prerequisites).

## Configure the webhook

1. Generate a destination for the webhook: navigate to [https://webhook.site/](https://webhook.site/) to automatically create a unique test page:

![Click to enlarge](https://mintlify.s3-us-west-1.amazonaws.com/sensible/assets/v0/images/screenshots/api_quickstart_webhook_1.png)\
**Note:** Use this website [solely for testing](https://webhook.site/terms). In production, make your own destination for the webhook payload.

2. Copy the following code sample, and replace `YOUR_UNIQUE_URL` with your uniquely generated webhook.site URL:

```curl
curl --location --request POST 'https://api.sensible.so/v0/extract_from_url/tax_forms' \
--header 'Authorization: Bearer YOUR_API_KEY' \
--header 'Content-Type: application/json' \
--data-raw '{"document_url":"https://github.com/sensible-hq/sensible-configuration-library/raw/main/tax_forms/1040/2021/1040_2021_sample.pdf",
"webhook": {"url":"YOUR_WEBHOOK_URL","payload":"some info you want to include in addition to the default payload, which includes extraction id, type, and parsed doc"}}'
```

3. In your Postman workspace, click **Import**, select **Raw text**, paste the code sample, and follow the prompts to import to code sample.

![Click to enlarge](https://mintlify.s3-us-west-1.amazonaws.com/sensible/assets/v0/images/screenshots/api_quickstart_webhook_2.png)

4. Click **Send** in Postman.

## Check the webhook response

Visit your unique URL at webhook.site to verify there's a response at the URL that includes `parsed_document` and `webhook` objects that look something like the following:

```json
{

	"webhook": {
		"payload": "some info you want to include in addition to the default payload, which includes extraction id, type, and parsed doc",
		"url": "https://webhook.site/b37c53a3-fb75-48d6-df696ebd1388"
	},
	"parsed_document": {
		"year": {
			"type": "string",
			"value": "2021"
		},
		"filing_status.single": {
			"type": "boolean",
			"value": true
		},
		"filing_status.married_filing_jointly": {
			"type": "boolean",
			"value": false
		},
		"filing_status.married_filing_separately": {
			"type": "boolean",
			"value": false
		},
		"filing_status.head_of_household": {
			"type": "boolean",
			"value": false
		},
		"filing_status.qualifying_widow": {
			"type": "boolean",
			"value": false
		},
		"name": {
			"type": "string",
			"value": "Connor Roy"
		},
		"ssn": {
			"type": "string",
			"value": "337-18-2333"
		}
	}

}
```