HTTP client API

HTTP client API. More...

Data Structures
struct	http_response
struct	http_client_internal_data
struct	http_request

Macros
#define	HTTP_CRLF   "\r\n"
#define	HTTP_STATUS_STR_SIZE   32

Typedefs
typedef int(*	http_payload_cb_t) (int sock, struct http_request *req, void *user_data)
	Callback used when data needs to be sent to the server. More...
typedef int(*	http_header_cb_t) (int sock, struct http_request *req, void *user_data)
	Callback can be used if application wants to construct additional HTTP headers when the HTTP request is sent. Usage of this is optional. More...
typedef void(*	http_response_cb_t) (struct http_response *rsp, enum http_final_call final_data, void *user_data)
	Callback used when data is received from the server. More...

Enumerations
enum	http_final_call { HTTP_DATA_MORE = 0 , HTTP_DATA_FINAL = 1 }

Functions
int	http_client_req (int sock, struct http_request *req, int32_t timeout, void *user_data)
	Do a HTTP request. The callback is called when data is received from the HTTP server. The caller must have created a connection to the server before calling this function so connect() call must have be done successfully for the socket. More...

Detailed Description

HTTP client API.

Macro Definition Documentation

HTTP_CRLF

#define HTTP_CRLF   "\r\n"

#include <include/net/http_client.h>

HTTP_STATUS_STR_SIZE

#define HTTP_STATUS_STR_SIZE   32

#include <include/net/http_client.h>

Typedef Documentation

http_header_cb_t

http_header_cb_t

#include <include/net/http_client.h>

Callback can be used if application wants to construct additional HTTP headers when the HTTP request is sent. Usage of this is optional.

Parameters

sock	Socket id of the connection
req	HTTP request information
user_data	User specified data specified in http_client_req()

Returns

>=0 amount of data sent, in this case http_client_req() should continue sending data, <0 if http_client_req() should return the error code to the caller.

http_payload_cb_t

http_payload_cb_t

#include <include/net/http_client.h>

Callback used when data needs to be sent to the server.

Parameters

sock	Socket id of the connection
req	HTTP request information
user_data	User specified data specified in http_client_req()

Returns

>=0 amount of data sent, in this case http_client_req() should continue sending data, <0 if http_client_req() should return the error code to the caller.

http_response_cb_t

http_response_cb_t

#include <include/net/http_client.h>

Callback used when data is received from the server.

Parameters

rsp	HTTP response information
final_data	Does this data buffer contain all the data or is there still more data to come.
user_data	User specified data specified in http_client_req()

Enumeration Type Documentation

http_final_call

enum http_final_call

#include <include/net/http_client.h>

Enumerator
HTTP_DATA_MORE
HTTP_DATA_FINAL

Function Documentation

http_client_req()

int http_client_req	(	int	sock,
		struct http_request *	req,
		int32_t	timeout,
		void *	user_data
	)

#include <include/net/http_client.h>

Do a HTTP request. The callback is called when data is received from the HTTP server. The caller must have created a connection to the server before calling this function so connect() call must have be done successfully for the socket.

Parameters

sock	Socket id of the connection.
req	HTTP request information
timeout	Max timeout to wait for the data. The timeout value cannot be 0 as there would be no time to receive the data. The timeout value is in milliseconds.
user_data	User specified data that is passed to the callback.

Returns

<0 if error, >=0 amount of data sent to the server