Which HTTP method is used with the Bulk API to send DML requests?

The Bulk API in Salesforce is specifically designed to handle large volumes of data efficiently. When you use the Bulk API to send DML (Data Manipulation Language) requests, the HTTP method utilized is POST. This method is appropriate for creating resources, such as submitting a batch of records for insert or upsert operations.

Using POST with the Bulk API allows you to send a batch of requests to Salesforce in one go, which enhances performance and minimizes the number of HTTP calls needed to perform bulk operations. Each request submitted using POST can handle multiple records, making it ideal for exporting or modifying large datasets.

In contrast, GET is typically used to retrieve data without making changes, while DELETE is used to remove resources from the server, and PATCH is used for modifying existing resources. Therefore, none of these alternative methods would be suitable for sending DML requests with the Bulk API, affirming that POST is the correct method to use in this context.