libcurl post request | C++ | Page 1

polar harbor Jan 1, 2025, 6:46 PM

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Im creating an ImGui gui which should post JSON body but it doesnt send the request

ImGui::BeginChild("Config", ImVec2(0, 0), ImGuiChildFlags_Border);
{
    ImAdd::SeparatorText("Config Options");

    if (ImGui::Button("Load Config")) {
        std::cout << "Button clicked" << std::endl;
        nlohmann::json config;

        config["velocity"]["enabled"] = velocity::enabled;
        config["velocity"]["velocityV"] = velocity::velocityV;
        config["velocity"]["velocityH"] = velocity::velocityH;
        config["speed"]["enabled"] = speed::enabled;
        config["aim"]["enabled"] = aim::enabled;
        config["aim"]["aim_distance"] = aim::aim_distance;
        config["aim"]["aim_speed"] = aim::aim_speed;
        config["aim"]["max_angle"] = aim::max_angle;
        config["leftClicker"]["enabled"] = leftClicker::enabled;
        config["leftClicker"]["minCPS"] = leftClicker::minCPS;
        config["leftClicker"]["maxCPS"] = leftClicker::maxCPS;
        config["rightClicker"]["enabled"] = rightClicker::enabled;
        config["rightClicker"]["minCPS"] = rightClicker::minCPS;
        config["rightClicker"]["maxCPS"] = rightClicker::maxCPS;

        SendConfigToServer(config, "(uuid)");
    }
}```


SendConfigToServer function:
```cpp
void SendConfigToServer(const nlohmann::json& config, const std::string& player_uuid) {
    CURL* curl;
    CURLcode res;
    std::string url = "https://mydomain/api/config";


    curl_global_init(CURL_GLOBAL_DEFAULT);
    curl = curl_easy_init();

    if (curl) {
        
        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());

        std::string json_data = config.dump();
        curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json_data.c_str());

        struct curl_slist* headers = NULL;
        headers = curl_slist_append(headers, "Content-Type: application/json");

        std::string uuid_header = "x-player-uuid: " + player_uuid;
        headers = curl_slist_append(headers, uuid_header.c_str());

        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

        res = curl_easy_perform(curl);

        if (res != CURLE_OK) {
            std::cerr << "Request failed: " << curl_easy_strerror(res) << std::endl;
        }
        else {
            std::cout << "Config successfully sent!" << std::endl;
        }

        curl_easy_cleanup(curl);
        curl_slist_free_all(headers);
    }

    curl_global_cleanup();
}```

keen bluff Jan 1, 2025, 6:56 PM

#

what's the issue?

polar harbor Jan 1, 2025, 6:56 PM

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It says "Config successfully sent!" But it didnt send lol

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i tested the api using insomnia and it went through so something is wrong with that code

keen bluff Jan 1, 2025, 6:57 PM

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how do you know it didn't send?

polar harbor Jan 1, 2025, 6:57 PM

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im hosting on vercel and it logs every request

keen bluff Jan 1, 2025, 6:58 PM

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you sure you have the right domain?

polar harbor Jan 1, 2025, 6:58 PM

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yup

rich drumBOT Jan 1, 2025, 6:58 PM

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@polar harbor has reached level 1. GG!

polar harbor Jan 1, 2025, 6:58 PM

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pretty sure

keen bluff Jan 1, 2025, 6:58 PM

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have you tried a get request?

polar harbor Jan 1, 2025, 7:00 PM

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well my api itself looks like this

const configs = {};

module.exports = async (req, res) => {
    try {
        const uuid = req.headers["x-player-uuid"];

        if (!uuid) {
            return res.status(400).json({ error: "UUID is required" });
        }
    
        if (req.method === "POST") {
            const { config } = req.body;
            console.log(config)
    
            if (!config) {
                return res.status(400).json({ error: "No request body found" });
            }
    
            configs[uuid] = config;
            return res.status(200).json({ message: "Config saved!", config });
        } else if (req.method === "GET") {
            const config = configs[uuid];
    
            if (!config) {
                return res.status(404).json({ error: "Config for this uuid wasnt found!" });
            }
    
            return res.status(200).json({ config });
        } else {
            return res.status(405).json({ error: "Method not allowed." });
        }
    } catch (error) {
        console.log(error);
    }

};

#

it has an get and post request

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Post to post the config and get to load the config

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all of this works find when using insomnia to do the requests

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so i havent really tried to do an get request on my imgui

keen bluff Jan 1, 2025, 7:02 PM

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if you do a get request what reponse do you get?

polar harbor Jan 1, 2025, 7:02 PM

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like if it goes through or if i do the get request on the imgui side?

keen bluff Jan 1, 2025, 7:03 PM

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the request reponse

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on the cpp side

polar harbor Jan 1, 2025, 7:03 PM

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One moment

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i dont get any response then

keen bluff Jan 1, 2025, 7:39 PM

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if you do a successful get request you should get some kind of response

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so check the HTTP response code etc

polar harbor Jan 1, 2025, 7:47 PM

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Am I stupid rn or why does it not log anything?

size_t WriteCallback(void* contents, size_t size, size_t nmemb, void* userp) {
    ((std::string*)userp)->append((char*)contents, size * nmemb);
    return size * nmemb;
}

void getConfig(const std::string& player_uuid) {
    CURL* curl;
    CURLcode res;
    std::string url = "https://mydomain/externalConfig";
    std::string readBuffer;

    curl_global_init(CURL_GLOBAL_DEFAULT);
    curl = curl_easy_init();

    if (curl) {
        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
        curl_easy_setopt(curl, CURLOPT_HTTPGET, 1L);

        struct curl_slist* headers = NULL;
        headers = curl_slist_append(headers, "Content-Type: application/json");

        std::string uuid_header = "x-player-uuid: " + player_uuid;
        headers = curl_slist_append(headers, uuid_header.c_str());

        curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);

        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteCallback);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, &readBuffer);

        res = curl_easy_perform(curl);

        if (res != CURLE_OK) {
            std::cerr << "Request failed: " << curl_easy_strerror(res) << std::endl;
        }
        else {
            long http_code = 0;
            curl_easy_getinfo(curl, CURLINFO_HTTP_CODE, &http_code);

            std::cout << "Response body: " << readBuffer << std::endl;
            std::cout << "HTTP Status Code: " << http_code << std::endl;
        }

        curl_easy_cleanup(curl);
        curl_slist_free_all(headers);
    }

    curl_global_cleanup();
}```

#

getConfig("myuuid");```

frail light Jan 1, 2025, 11:23 PM

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polar harbor Im creating an ImGui gui which should post JSON body but it doesnt send the requ...

Ho

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you're doing a mc client?

polar harbor Jan 1, 2025, 11:38 PM

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i am

frail light Jan 1, 2025, 11:44 PM

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polar harbor i am

show the gui

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using jni?

polar harbor Jan 1, 2025, 11:53 PM

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frail light show the gui

dms

polar harbor Jan 5, 2025, 10:13 AM

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keen bluff if you do a successful get request you should get some kind of response

the issue is that libcurl (atleast the version i have) doesnt support ssl

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how do i make it work with ssl?

keen bluff Jan 5, 2025, 2:55 PM

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Which version did you get?

#libcurl post request