Dear ,
I want to use LTE_M of nRF9160 DK to POST to my webserver
Do you have any suggestions?
Thanks,
Regards
hng
Dear ,
I want to use LTE_M of nRF9160 DK to POST to my webserver
Do you have any suggestions?
Thanks,
Regards
hng
Hi,
Please see my response here: https://devzone.nordicsemi.com/f/nordic-q-a/46094/how-to-make-http-post-no-libcurl
Regards,
Vidar
Hi,
Please see my response here: https://devzone.nordicsemi.com/f/nordic-q-a/46094/how-to-make-http-post-no-libcurl
Regards,
Vidar
Thank Vidar,
I will try it
Regards,
hng
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\r\n"\
"Host: %s\r\n"\
"Connection: keep-alive\r\n"\
"Content-type: application/x-www-form-urlencoded\r\n"\
"Content-length: %d\r\n\r\n"\
"%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\n\r", 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\n\r", send_data_len_post);
int client_fd = socket(AF_INET, SOCK_STREAM, 0);
printk("client_fd: %d\n\r", client_fd);
err = bind(client_fd, (struct sockaddr *)&local_addr,
sizeof(local_addr));
printk("bind err: %d\n\r", err);
// connect
err = blocking_connect(client_fd, (struct sockaddr *)res->ai_addr,
sizeof(struct sockaddr_in));
printk("connect err: %d\n\r", err);
//send
blocking_send(client_fd, send_buf, send_data_len_post, 0);
k_sleep(1000);
printk("\n\r HTTP POST Finished. \n\r");
close(client_fd);
}
Thanks so much
Regards,
hng
Thanks for sharing the solution here.
DearVidar Berg
I tried to run this http post in a loop
first, i will check the LTE_M signal "AT+CEREG?"
It returns:
Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. +CEREG: 0,5,"765D","0110C303",7 OK Found the LTE_M signal Closing socket find LTE_M signal........... Checking LTE_M signal............. Closing socket Couldnt find LTE_M signal........... Checking LTE_M signal............. Closing socket Couldnt find LTE_M signal........... Checking LTE_M signal.............
After 7times, "AT+CEREG?" return NOTHING!
Why is the problem, the buffer is full? or something wrong in my code?
Plz help me.
Thanks so much
Regards,
hng
I believe a bug in the BSD library causes this. I get the "no memory" error when call socket send in a loop without any delay in-between. I have reported this internally. A workaround, for now, is to add a delay between each post request.