HTTPStatus_t HTTPClient_SendHttpHeaders( const TransportInterface_t * pTransport,
                                         HTTPClient_GetCurrentTimeFunc_t getTimestampMs,
                                         HTTPRequestHeaders_t * pRequestHeaders,
                                         size_t reqBodyLen,
                                         uint32_t sendFlags );

Send the request headers in pRequestHeaders over the transport.

If HTTP_SEND_DISABLE_CONTENT_LENGTH_FLAG is not set in parameter sendFlags, then the Content-Length to be sent to the server is automatically written to pRequestHeaders. The Content-Length will not be written when there is no request body. If there is not enough room in the buffer to write the Content-Length then HTTPInsufficientMemory is returned. Please see HTTP_MAX_CONTENT_LENGTH_HEADER_LENGTH for the maximum Content-Length header field and value that could be written to the buffer.

The application should close the connection with the server if any of the following errors are returned:

Parameters

[in]	pTransport	Transport interface, see TransportInterface_t for more information.
[in]	getTimestampMs	Function to retrieve a timestamp in milliseconds.
[in]	pRequestHeaders	Request configuration containing the buffer of headers to send.
[in]	reqBodyLen	The length of the request entity in bytes.
[in]	sendFlags	Flags which modify the behavior of this function. Please see HTTPClient_Send Flags for more information.

Returns: HTTPSuccess if successful. If there was a network error or less bytes than what were specified were sent, then HTTPNetworkError is returned.