Code example in programming language C for SMS API integration

Below you will find the examples of programming code in the language C to send SMS messages through the API of the LabsMobile platform.

You also have code examples in C++, C# and other programming languages.

We recommend you to consult and take into account the following resources and help in your integration:

Send SMS - REST API - JSON

This is the sample code in C to send SMS messages with the LabsMobile SMS API in the JSON version. As you can see, you must create a JSON structure with all the sending parameters and make an HTTP/POST call with the JSON data in the body of the call.

It is essential to make the call with the authentication of the username (registration email) and the password (or token API) of the account.

              
CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "POST");
curl_easy_setopt(hnd, CURLOPT_URL, "https://api.labsmobile.com/json/send");
curl_easy_setopt(hnd, CURLOPT_HTTPAUTH, (long)CURLAUTH_BASIC);
curl_easy_setopt(hnd, CURLOPT_USERNAME, "myusername");
curl_easy_setopt(hnd, CURLOPT_PASSWORD, "mypassword");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Cache-Control: no-cache");
headers = curl_slist_append(headers, "Content-Type: application/json");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

curl_easy_setopt(hnd, CURLOPT_POSTFIELDS, "{\"message\":\"Text of the SMS message\", \"tpoa\":\"Sender\",\"recipient\":[{\"msisdn\":\"12015550123\"},{\"msisdn\":\"447400123456\"},{\"msisdn\":\"5212221234567\"}]}");

CURLcode ret = curl_easy_perform(hnd);

You can check all available JSON parameters, configuration options, manuals and specifications in the following url: https://apidocs.labsmobile.com/?c#send-sms

Credit inquiry - REST API - JSON

Example of code in C for consulting the balance of an account. The result is always obtained in internal credits of the LabsMobile platform.

              
CURL *hnd = curl_easy_init();

curl_easy_setopt(hnd, CURLOPT_CUSTOMREQUEST, "GET");
curl_easy_setopt(hnd, CURLOPT_URL, "https://api.labsmobile.com/json/balance");
curl_easy_setopt(hnd, CURLOPT_HTTPAUTH, (long)CURLAUTH_BASIC);
curl_easy_setopt(hnd, CURLOPT_USERNAME, "myusername");
curl_easy_setopt(hnd, CURLOPT_PASSWORD, "mypassword");

struct curl_slist *headers = NULL;
headers = curl_slist_append(headers, "Cache-Control: no-cache");
curl_easy_setopt(hnd, CURLOPT_HTTPHEADER, headers);

CURLcode ret = curl_easy_perform(hnd);

Send SMS - HTTP/GET

Example of sending for the GET version of the LabsMobile SMS API. This is a basic and simple method of sending SMS messages from an application or software created in C passing all the parameters in the same url.

It is important to encode all the values ​​as url (with the function urlencode() for example).

You can see and download the GET API manual of LabsMobile in the following URL: https://www.labsmobile.com/en/api-sms/api-versions/http-get

                
void main() {
	long http_code = 0;
	CURL *curl;
  	CURLcode res;

	curl = curl_easy_init();

	if(curl) {

		curl_easy_setopt(curl,CURLOPT_URL, "http://api.labsmobile.com/get/send.php?username=[X]&password=[X]&msisdn=34609036253&sender=SENDER&message=This+is+the+message");

		res = curl_easy_perform(curl);

		if(CURLE_OK == res) {
		    curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);

		    if(http_code == 200) {
		        puts("Received 200 status code");
		    } else {
		        puts("Did not received 200 status code");
		    }
		}
	} else {
	    puts("Could not initialize curl");
	}
}

Credit inquiry - HTTP/GET

                
void main() {
	long http_code = 0;
	CURL *curl;
  	CURLcode res;

	curl = curl_easy_init();

	if(curl) {

		curl_easy_setopt(curl,CURLOPT_URL, "http://api.labsmobile.com/get/balance.php?username=[X]&password=[X]");

		res = curl_easy_perform(curl);

		if(CURLE_OK == res) {
		    curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);

		    if(http_code == 200) {
		        puts("Received 200 status code");
		    } else {
		        puts("Did not received 200 status code");
		    }
		}
	} else {
	    puts("Could not initialize curl");
	}
}
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