How to send http request in Adobe Acrobat SDK Plugin using C++

Question

Hello everyone.I'm developing a simple Adobe Acrobat SDK Plugin(I started this plugin from `Sample/BasicPlugin` project). I added new menu item and custom dialog for this plugin but I faced an issue. I can't send http request to my api host. But the code works well on Windows Desktop Application project. Below is the code to send request. HINTERNET hSession = InternetOpenA("MyCustomAPIPlugin", 0, NULL, NULL, 0);
if (!hSession) {
	lastError =  GetLastError();
	return;
}

HINTERNET hConnect = InternetConnectA(hSession, "api.mycustom.dev",
	0, 0, 0, INTERNET_SERVICE_HTTP,
	0, 1);
if (!hConnect) {
	lastError = GetLastError();
	return;
}

HINTERNET hFile = HttpOpenRequestA(hConnect, "GET", "/api/cases",
"HTTP/1.0", 0, 0, INTERNET_FLAG_EXISTING_CONNECT, 1);
if (!hFile) {
	lastError = GetLastError();
	return;
}

char headers[] = "X-Api-Key: 0000-00000-00000-00000";

BOOL bRet = HttpAddRequestHeadersA(hFile, headers, static_cast<DWORD>(strlen(headers)),
	HTTP_ADDREQ_FLAG_ADD_IF_NEW);
if (!bRet) {
	lastError = GetLastError();
	return;
}
 bRet = HttpSendRequestA(hFile,
	0, 0, 0, 0);
///***** In plugin, this value is FALSE but in windows desktop application project, it's TRUE.*****
 if (!bRet) {
	 lastError = GetLastError();
	 return;
 }

AODA_Developer · Answer

Hi,I'm not sure if this would work for you, but we use cURL to send simple request-response messages from our Acrobat plugin to our server and back. I set up a simple function to handle the transaction with the result from the server returned as a JSON string:#include #include static size_t WriteCallback(void *contents, size_t size, size_t nmemb, void *userp){ ((string*)userp)->append((char*)contents, size * nmemb); return size * nmemb;}/* ************************ * * cURLreq * * Sends a cURL request * * ************************/string cURLreq (string action, string accessKey, string licenseKey, string domain) { CURL * curl; CURLcode res; string readBuffer; string accRequest; accRequest = string("https:///?my_action=") + action + string("&access_key=") + accessKey + string("&license_key=") + licenseKey + string("®istered_domain=") + domain + string("&item_reference=AODATool"); curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, accRequest.c_str()); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback); curl_easy_setopt(curl, CURLOPT_WRITEDATA, &readBuffer); res = curl_easy_perform(curl); curl_easy_cleanup(curl); DLog(@"Result = %s", readBuffer.c_str()); } return readBuffer;} Not sure if this helps in your situation, but thought I'd put it out there in case anyone needs it.

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