Add check for http status, add post method

src/requester.cpp

@@ -1,16 +1,9 @@
-//
-// requester.cpp
-// curly
-//
-// Created by Bob Polis at 2020-09-01
-// Copyright (c) 2020 SwiftCoder. All rights reserved.
-//
-
 #include "requester.hpp"
-#include <libsclogging.hpp>
+#include <curl/curl.h>
 #include <vector>
 #include <cstring>
 #include <stdexcept>
+#include <libsclogging.hpp>
 
 extern sc::logger logger;
 
@@ -38,5 +31,27 @@ std::string requester::get(const std::string &url) {
     curl_easy_setopt(_h.get(), CURLOPT_WRITEDATA, &text);
     auto success = curl_easy_perform(_h.get());
     if (success != CURLE_OK) throw std::runtime_error("could not get remote data");
+    long status;
+    success = curl_easy_getinfo(_h.get(), CURLINFO_RESPONSE_CODE, &status);
+    if (success != CURLE_OK || status != 200) throw std::runtime_error("could not get remote data");
     return text;
 }
+
+std::string requester::post(const std::string& url, const std::string& json) {
+    curl_easy_setopt(_h.get(), CURLOPT_URL, url.c_str());
+    curl_easy_setopt(_h.get(), CURLOPT_POST, 1L);
+    curl_easy_setopt(_h.get(), CURLOPT_POSTFIELDS, json.c_str());
+    curl_easy_setopt(_h.get(), CURLOPT_POSTFIELDSIZE, json.size());
+
+    struct curl_slist* headers {nullptr};
+    headers = curl_slist_append(headers, "Content-Type: application/json");
+    std::unique_ptr<struct curl_slist, void(*)(struct curl_slist*)> hdrs {headers, curl_slist_free_all};
+    curl_easy_setopt(_h.get(), CURLOPT_HTTPHEADER, headers);
+
+    std::string response;
+    curl_easy_setopt(_h.get(), CURLOPT_WRITEDATA, &response);
+
+    auto success = curl_easy_perform(_h.get());
+    if (success != CURLE_OK) throw std::runtime_error("could not post data");
+    return response;
+}

src/requester.hpp

@@ -1,11 +1,3 @@
-//
-// requester.hpp
-// curly
-//
-// Created by Bob Polis at 2020-09-01
-// Copyright (c) 2020 SwiftCoder. All rights reserved.
-//
-
 #ifndef _requester_H_
 #define _requester_H_
 
@@ -31,6 +23,9 @@ class requester {
         // perform a http get request
         std::string get(const std::string& url);
 
+        // perform a http post request
+        std::string post(const std::string& url, const std::string& json);
+
     private:
         std::unique_ptr<CURL, void(*)(CURL*)> _h {nullptr, curl_easy_cleanup};
 };