nRF9160 DK HTTP POST to my Webserver

Question

Dear , 
 
 I want to use LTE_M of nRF9160 DK to POST to my webserver 
 Do you have any suggestions? 
 
 Thanks, 
 Regards 
 hng

Vidar Berg · Accepted Answer

Hi, 
 Please see my response here: https://devzone.nordicsemi.com/f/nordic-q-a/46094/how-to-make-http-post-no-libcurl 
 Regards, 
 Vidar

Hoang · Answer

It works, just fixed a little bit: 
 
/******************************************"**************************************/
#define MAXLINE 4096
#define HTTP_HOST "142.xx.xx.192" //my webserver
#define HTTP_PORT 80
#define HTTP_PATH "/"
#define TEST_STRING "Hello from nRF9160 DK"

#define POST_TEMPLATE "POST %s? HTTP/1.1
"\
 "Host: %s
"\
 "Connection: keep-alive
"\
 "Content-type: application/x-www-form-urlencoded
"\
 "Content-length: %d

"\
 "%s"
/************************************************************************/
void app_http_post()
{ 
	//int err; 
 struct sockaddr_in local_addr;
	struct addrinfo *res;

	local_addr.sin_family = AF_INET;
	local_addr.sin_port = htons(0);
	local_addr.sin_addr.s_addr = 0;

 
	int err = getaddrinfo(HTTP_HOST, NULL, NULL, &res);

	printk("getaddrinfo err: %d
", err);
	((struct sockaddr_in *)res->ai_addr)->sin_port = htons(HTTP_PORT);
 
 char send_buf[MAXLINE + 1];
	
	int send_data_len_post = snprintf(send_buf,
 500, /*total length should not exceed MTU size*/
 POST_TEMPLATE, HTTP_PATH,
 HTTP_HOST, strlen(TEST_STRING),
 TEST_STRING);

	printk("send err: %d
", send_data_len_post);


	int client_fd = socket(AF_INET, SOCK_STREAM, 0);

	printk("client_fd: %d
", client_fd);
	err = bind(client_fd, (struct sockaddr *)&local_addr,
 sizeof(local_addr));
	printk("bind err: %d
", err);
 // connect
	err = blocking_connect(client_fd, (struct sockaddr *)res->ai_addr,
 sizeof(struct sockaddr_in));
	printk("connect err: %d
", err);
 //send
 blocking_send(client_fd, send_buf, send_data_len_post, 0);
 k_sleep(1000);
 
	printk("
 HTTP POST Finished. 
");
	close(client_fd);

} 
 Thanks so much 
 Regards, 
 hng

nRF9160 DK HTTP POST to my Webserver

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