# Request Parameters

## Header Parameters

Header parameters are included in the request headers. All requests to the Mobile Text Alerts API require a valid `Authorization` header. See [Request Headers](/api-basics/request-response-headers.md#request-headers) to learn more.

## Path Parameters

Path parameters (sometimes called path variables) are part of the endpoint itself and are not optional when making a request to certain endpoints.

For example, when calling the [**Update Drip Campaign** endpoint](/api-reference/drip-campaigns.md#patch-drip-campaigns-dripcampaignid):

<pre><code>https://api.mobile-text-alerts.com/v3/drip-campaigns/<a data-footnote-ref href="#user-content-fn-1">{dripCampaignId}</a>
</code></pre>

The `{dripCampaignId}` is a `string` that identifies the ID of the campaign to be updated.

## Request Bodies

The request body contains the data being transferred. This is particularly important for methods such as `POST`, `PATCH`, and `DELETE`, where data is sent to the server. This data is typically sent as JSON.

For example, when calling the **Update Drip Campaign** endpoint, the `name` and `endDate` of a campaign can be updated in the request body:

```json
{
    "name": "<string>",
    "endDate": "<YYYY-MM-DD HH:mm:ss>"
}
```

Example request to [**Update Drip Campaign** endpoint](/api-reference/drip-campaigns.md#patch-drip-campaigns-dripcampaignid):

<pre class="language-bash" data-overflow="wrap"><code class="lang-bash">curl --location --request PATCH 'https://api.mobile-text-alerts.com/v3/drip-campaigns/<a data-footnote-ref href="#user-content-fn-2">12345</a>' \
  --header 'Authorization: Bearer &#x3C;APIKey>' \
  --header 'Content-Type: application/json' \
  --data '{
    "name": "Example Campaign Name"
<strong>}'
</strong></code></pre>

[^1]: Path parameter

[^2]: {dripCampaignId}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developers.mobile-text-alerts.com/api-basics/request-parameters.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.