HTTP GET problems - http

Question

I'm trying to send GET request to generate receiving address (Blockchain api, https://blockchain.info/ru/api/api_receive)
On the page i've generated request - "
/api/receive?method=create&cors=true&format=plain&address=1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq&shared=false&callback=http%3A%2F%2Fgoogle.com
and need to receive an answer -
{"callback_url":"http://google.com","input_address":"16ofW1jBBLbVnDQWJsyL6NKq7hKms9tDLP","destination":"1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq","fee_percent":0}"
I found sample code and trying to send request
SOCKET Socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
struct hostent *host;
host = gethostbyname("www.google.com");
SOCKADDR_IN SockAddr;
SockAddr.sin_port = htons(80);
SockAddr.sin_family = AF_INET;
SockAddr.sin_addr.s_addr = *((unsigned long*)host->h_addr);
std::cout << "Connecting...\n";
if (connect(Socket, (SOCKADDR*)(&SockAddr), sizeof(SockAddr)) != 0){
std::cout << "Could not connect";
return -1;
}
std::cout << "Connected.\n";
send(Socket, "GET /api/receive?method=create&cors=true&format=plain&address=1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq&shared=false&callback=http://microsoft.com/ HTTP/1.1\r\nHost: blockchain.info\r\nConnection: close\r\n\r\n", strlen("GET /api/receive?method=create&cors=true&format=plain&address=1A8JiWcwvpY7tAopUkSnGuEYHmzGYfZPiq&shared=false&callback=http://microsoft.com/ HTTP/1.1\r\nHost: blockchain.info\r\nConnection: close\r\n\r\n"), 0);
char buffer[10000];
int nDataLength;
while ((nDataLength = recv(Socket, buffer, 10000, 0)) > 0){
int i = 0;
while (buffer[i] >= 32 || buffer[i] == '\n' || buffer[i] == '\r') {
std::cout << buffer[i];
i += 1;
}
}
closesocket(Socket);
return 1;
}
but receive 404 error. What is the problem and what is the best way to parse an answer (I need to get "input_address")? Thanks for help!