Walkthrough Sending HTTP Requests with cURL
You send HTTP requests to a URI to perform operations with Bulk API.The URI where you send HTTP requests has this format:
https://Web_Services_SOAP_endpoint_hostame/services/async/APIversion/Resource_address
The part after the API version (Resource_address) varies depending on the job or batch being processed.
The easiest way to start using the Bulk API is to enable it for processing records in Data Loader using CSV files. If you use Data Loader, you don't need to craft your own HTTP requests or write your own client application. For an example of writing a client application using Java, see Sample Client Application Using Java.