The following table lists the interface methods, sequence of calls, description of a method, and its syntax. For more details on the syntax of each method and its parameters, see Details of the Interface Methods.
Sequence of Calls | Interface Methods | Description |
|---|---|---|
1. Initialization | INITHTTPLIBRARY | This initialization function is used to initialize the HTTP Client Library. |
2. Create HTTP Session | CREATEHTTPSESSION | This method creates a new HTTP session and returns a session handle that must be passed to the subsequent API calls. |
3. Send HTTP Request | SENDHTTPREQUEST | This method is used to send the COBOL payload data to the ePortal service proxy running on the Web Cluster as an HTTP request. |
4. Receive HTTP Response | RECEIVEHTTPRESPONSE | This method is used to read the HTTP response. The call blocks until the response is received. If there is no response until timeout, then an error is returned. The error occurs in case the send or receive fails because of network issues or other internal issues. |
5. Destroy HTTP Session | DESTROYHTTPSESSION | This method closes the HTTP session, and frees all resources associated with this HTTP session. |
6. Close HTTP Library | CLOSEHTTPLIBRARY | This method closes all objects created as a part of initialization. |