requests.c is an easy to use library, influenced by requests.py, to make http requests
On debian
sudo apt-get install openssl
git clone https://github.com/mactul/requests.c.git
cd requests.c
sh install_debian.sh
first example:
#include <stdio.h>
#include "requests.h"
int main()
{
char buffer[1024];
Handler handler;
handler = get("http://info.cern.ch/hypertext/WWW/TheProject.html", ""); // "" is for no additionals headers
if(handler >= 0)
{
while((size = read_output_body(handler, buffer, 1024)) > 0)
{
buffer[size] = '\0';
printf("%s", buffer);
}
close_connection(handler);
}
else
{
printf("error code: %d\n", handler);
}
}
Here is all the connection functions
Handler post(char* url, char* data, char* headers);
Handler get(char* url, char* headers);
Handler delete(char* url, char* headers);
Handler patch(char* url, char* data, char* headers);
Handler put(char* url, char* data, char* headers);
url needs to start with http:// or https://
data need to be formated like the server want
for example, for a standard post, it will be like that
"key1=value1&key2=value2&key3=value3"
headers are separeted by \r\n they needs to finish by \r\n
for example, I can add this header
"Content-Type: application/json\r\n"
To read the server response, you have two choices.
The first one returns all the response, with headers.
The second one returns only the body of the response, it is more easy, especially if you want to decode a string, like a json.
Both solutions can read binary files like images
For both solutions, you need a buffer and you will fill it and use it in a loop, while there is data.\
#include <stdio.h>
#include "requests.h"
int main()
{
char buffer[1024];
Handler handler;
handler = get("http://info.cern.ch/hypertext/WWW/TheProject.html", ""); // "" is for no additionals headers
if(handler >= 0)
{
while((size = read_output(handler, buffer, 1024)) > 0)
{
buffer[size] = '\0';
printf("%s", buffer);
}
close_connection(handler);
}
else
{
printf("error code: %d\n", handler);
}
}
The easiest solution is to do that\
#include <stdio.h>
#include "requests.h"
int main()
{
char buffer[1024];
Handler handler;
handler = get("http://info.cern.ch/hypertext/WWW/TheProject.html", ""); // "" is for no additionals headers
if(handler >= 0)
{
while((size = read_output_body(handler, buffer, 1024)) > 0)
{
buffer[size] = '\0';
printf("%s", buffer);
}
close_connection(handler);
}
else
{
printf("error code: %d\n", handler);
}
}You can notice that the 2 solutions have only the name of the reading function different.
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