refactoring

src/users/access_request.cpp

@@ -0,0 +1,11 @@
+#include "users.hpp"
+
+// function for access or reject authorization
+void user_access(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"access\":\"reject\"}", "application/json");return;}
+    response.set_content("{\"access\":\"success\"}", "application/json");
+}

src/users/add_user.cpp

@@ -0,0 +1,71 @@
+#include "users.hpp"
+
+#define ALPHABET "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
+
+// function for generate random string
+std::string get_random_string(const char *alphabet, int quantity) {
+    srand(time(NULL));
+    std::string str;
+    for (int i = 0; i < quantity; i++) {
+        str += alphabet[0 + rand() % strlen(alphabet)];
+    }
+    return str;
+}
+
+// function for add user
+void add_user(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    if (json_body["username"] == nullptr) {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
+    if (json_body["password"] == nullptr) {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
+
+    auto decoded_token = jwt::decode(json_body["token"]);
+    std::string userid = "";
+    for (auto& e : decoded_token.get_payload_json()) {
+        if (e.first == "userId") {
+            userid = e.second.to_str();
+            break;
+        }
+    }
+    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    std::ifstream usersfile("users.json");
+    nlohmann::json all_users = nlohmann::json::parse(usersfile);
+    usersfile.close();
+
+    nlohmann::json response_user_data = nullptr;
+    for (auto& user : all_users) {
+        if (user["id"] == userid) {
+            response_user_data = user;
+        }
+    }
+    if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    const std::string username = json_body["username"];
+    const std::string password = json_body["password"];
+
+    for (auto& user : all_users) {
+        if ((user["username"] == username)) {
+            response.set_content("{\"status\":\"user already exists\"}", "application/json");return;
+        }
+    }
+
+    std::stringstream new_user_data;
+
+    new_user_data << "{\"id\":\"" << get_random_string(ALPHABET, 50) << "\",\"username\":\"" << username << "\",\"password\":\"" << password << "\",\"group\":";
+    (json_body["group"] != nullptr) ? new_user_data << json_body["group"] : new_user_data << "\"users\"";
+    new_user_data << ",\"is_superuser\":";
+    (json_body["is_superuser"]  != nullptr) ? new_user_data << json_body["is_superuser"] : new_user_data << "\"0\"";
+    new_user_data << "}";
+    all_users.push_back(nlohmann::json::parse(new_user_data));
+
+    std::ofstream usersfilew("users.json");
+    usersfilew << all_users.dump(4);
+    usersfilew.close();
+
+    response.set_content("{\"status\":\"ok\"}", "application/json");
+}

src/users/change_password.cpp

@@ -0,0 +1,77 @@
+#include "users.hpp"
+
+// functtion for change password for user
+void change_password(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content(
+        "{\"required\":\"[token,old_password,new_password] or if you superuser [token,userid,new_password]\"}", 
+        "application/json"
+    );return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content(
+        "{\"required\":\"[token,old_password,new_password] or if you superuser [token,userid,new_password]\"}", 
+        "application/json"
+    );return;}
+    if ((json_body["userid"] == nullptr) && (json_body["old_password"] == nullptr)) {
+        response.set_content("{\"required\":\"[token,old_password,new_password] or if you superuser [token,userid,new_password]\"}", "application/json");
+        return;
+    }
+    if (json_body["new_password"] == nullptr) {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    std::string old_password = "";
+    const std::string new_password = json_body["new_password"];
+
+    if (json_body["userid"] == nullptr) {old_password = json_body["old_password"];}
+
+    auto decoded_token = jwt::decode(json_body["token"]);
+    std::string userid = "";
+    for (auto& e : decoded_token.get_payload_json()) {
+        if (e.first == "userId") {
+            userid = e.second.to_str();
+            break;
+        }
+    }
+    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    std::ifstream usersfile("users.json");
+    nlohmann::json all_users = nlohmann::json::parse(usersfile);
+    usersfile.close();
+
+    std::string changepassuserid = userid;
+    if (json_body["userid"] != nullptr) {
+        changepassuserid = json_body["userid"];
+        nlohmann::json response_user_data = nullptr;
+        for (auto& user : all_users) {
+            if (user["id"] == userid) {
+                response_user_data = user;
+            }
+        }
+        if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+        if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    }
+
+    bool found = false;
+    if (json_body["userid"] != nullptr) {
+        for (int i = 0; i < all_users.size(); i++) {
+            if ((all_users[i]["id"] == changepassuserid)) {
+                all_users[i]["password"] = new_password;
+                found = true;
+                break;
+            }
+        }
+    } else {
+        for (int i = 0; i < all_users.size(); i++) {
+            if ((all_users[i]["id"] == changepassuserid) && (all_users[i]["password"] == old_password)) {
+                all_users[i]["password"] = new_password;
+                found = true;
+                break;
+            }
+        }
+    }
+    if (!found) {response.set_content("{\"status\":\"can't find this user\"}", "application/json");return;}
+    std::ofstream usersfilew("users.json");
+    usersfilew << all_users.dump(4);
+    usersfilew.close();
+    response.set_content("{\"status\":\"ok\"}", "application/json");
+}

src/users/delete_user.cpp

@@ -0,0 +1,51 @@
+#include "users.hpp"
+
+// function for delete user
+void delete_user(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    auto decoded_token = jwt::decode(json_body["token"]);
+    std::string userid = "";
+    for (auto& e : decoded_token.get_payload_json()) {
+        if (e.first == "userId") {
+            userid = e.second.to_str();
+            break;
+        }
+    }
+    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    std::ifstream usersfile("users.json");
+    nlohmann::json all_users = nlohmann::json::parse(usersfile);
+    usersfile.close();
+
+    std::string deluserid = userid;
+    if (json_body["userid"] != nullptr) {
+        deluserid = json_body["userid"];
+        nlohmann::json response_user_data = nullptr;
+        for (auto& user : all_users) {
+            if (user["id"] == userid) {
+                response_user_data = user;
+            }
+        }
+        if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+        if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    }
+
+    bool found = false;
+    for (int i = 0; i < all_users.size(); i++) {
+        if (all_users[i]["id"] == deluserid) {
+            all_users.erase(i);
+            found = true;
+            break;
+        }
+    }
+    if (!found) {response.set_content("{\"status\":\"can't find this user\"}", "application/json");return;}
+    std::ofstream usersfilew("users.json");
+    usersfilew << all_users.dump(4);
+    usersfilew.close();
+    response.set_content("{\"status\":\"ok\"}", "application/json");
+}

src/users/get_all_users.cpp

@@ -0,0 +1,32 @@
+#include "users.hpp"
+
+// function for get all users data without password
+void get_all_users(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    auto decoded_token = jwt::decode(json_body["token"]);
+    std::string userid = "";
+    for (auto& e : decoded_token.get_payload_json()) {
+        if (e.first == "userId") {
+            userid = e.second.to_str();
+            break;
+        }
+    }
+    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    std::ifstream usersfile("users.json");
+    nlohmann::json all_users = nlohmann::json::parse(usersfile);
+    usersfile.close();
+    nlohmann::json response_user_data = nullptr;
+    for (auto& user : all_users) {
+        if (user["id"] == userid) {
+            response_user_data = user;
+        }
+        user.erase("password");
+    }
+    if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    response.set_content(all_users.dump(), "application/json");
+}

src/users/get_user.cpp

@@ -0,0 +1,32 @@
+#include "users.hpp"
+
+// function for get user data without password
+void get_user(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    auto decoded_token = jwt::decode(json_body["token"]);
+    std::string userid = "";
+    for (auto& e : decoded_token.get_payload_json()) {
+        if (e.first == "userId") {
+            userid = e.second.to_str();
+            break;
+        }
+    }
+    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    std::ifstream usersfile("users.json");
+    nlohmann::json all_users = nlohmann::json::parse(usersfile);
+    usersfile.close();
+    nlohmann::json response_user_data = nullptr;
+    for (auto& user : all_users) {
+        if (user["id"] == userid) {
+            response_user_data = user;
+            break;
+        }
+    }
+    if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    response_user_data.erase("password");
+    response.set_content(response_user_data.dump(), "application/json");
+}

src/users/users.cpp

@@ -1,268 +0,0 @@
-#include "users.hpp"
-#include "sstream"
-
-#define ALPHABET "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
-
-std::string get_random_string(const char *alphabet, int quantity) {
-    srand(time(NULL));
-    std::string str;
-    for (int i = 0; i < quantity; i++) {
-        str += alphabet[0 + rand() % strlen(alphabet)];
-    }
-    return str;
-}
-
-// function for get user data without password
-void get_user(const httplib::Request& request, httplib::Response& response) {
-    if (request.body == "") {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
-    nlohmann::json json_body = nlohmann::json::parse(request.body);
-
-    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
-    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    auto decoded_token = jwt::decode(json_body["token"]);
-    std::string userid = "";
-    for (auto& e : decoded_token.get_payload_json()) {
-        if (e.first == "userId") {
-            userid = e.second.to_str();
-            break;
-        }
-    }
-    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    std::ifstream usersfile("users.json");
-    nlohmann::json all_users = nlohmann::json::parse(usersfile);
-    usersfile.close();
-    nlohmann::json response_user_data = nullptr;
-    for (auto& user : all_users) {
-        if (user["id"] == userid) {
-            response_user_data = user;
-            break;
-        }
-    }
-    if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    response_user_data.erase("password");
-    response.set_content(response_user_data.dump(), "application/json");
-}
-
-// function for get all users data without password
-void get_all_users(const httplib::Request& request, httplib::Response& response) {
-    if (request.body == "") {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
-    nlohmann::json json_body = nlohmann::json::parse(request.body);
-
-    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
-    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    auto decoded_token = jwt::decode(json_body["token"]);
-    std::string userid = "";
-    for (auto& e : decoded_token.get_payload_json()) {
-        if (e.first == "userId") {
-            userid = e.second.to_str();
-            break;
-        }
-    }
-    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    std::ifstream usersfile("users.json");
-    nlohmann::json all_users = nlohmann::json::parse(usersfile);
-    usersfile.close();
-    nlohmann::json response_user_data = nullptr;
-    for (auto& user : all_users) {
-        if (user["id"] == userid) {
-            response_user_data = user;
-        }
-        user.erase("password");
-    }
-    if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    response.set_content(all_users.dump(), "application/json");
-}
-
-// function for add user
-void add_user(const httplib::Request& request, httplib::Response& response) {
-    if (request.body == "") {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
-    nlohmann::json json_body = nlohmann::json::parse(request.body);
-
-    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
-    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    if (json_body["username"] == nullptr) {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
-    if (json_body["password"] == nullptr) {response.set_content("{\"required\":\"[token,username,password]\",\"optional\":\"[group,is_superuser]\"}", "application/json");return;}
-
-    auto decoded_token = jwt::decode(json_body["token"]);
-    std::string userid = "";
-    for (auto& e : decoded_token.get_payload_json()) {
-        if (e.first == "userId") {
-            userid = e.second.to_str();
-            break;
-        }
-    }
-    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-
-    std::ifstream usersfile("users.json");
-    nlohmann::json all_users = nlohmann::json::parse(usersfile);
-    usersfile.close();
-
-    nlohmann::json response_user_data = nullptr;
-    for (auto& user : all_users) {
-        if (user["id"] == userid) {
-            response_user_data = user;
-        }
-    }
-    if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-
-    const std::string username = json_body["username"];
-    const std::string password = json_body["password"];
-
-    for (auto& user : all_users) {
-        if ((user["username"] == username)) {
-            response.set_content("{\"status\":\"user already exists\"}", "application/json");return;
-        }
-    }
-
-    std::stringstream new_user_data;
-
-    new_user_data << "{\"id\":\"" << get_random_string(ALPHABET, 50) << "\",\"username\":\"" << username << "\",\"password\":\"" << password << "\",\"group\":";
-    (json_body["group"] != nullptr) ? new_user_data << json_body["group"] : new_user_data << "\"users\"";
-    new_user_data << ",\"is_superuser\":";
-    (json_body["is_superuser"]  != nullptr) ? new_user_data << json_body["is_superuser"] : new_user_data << "\"0\"";
-    new_user_data << "}";
-    all_users.push_back(nlohmann::json::parse(new_user_data));
-
-    std::ofstream usersfilew("users.json");
-    usersfilew << all_users.dump(4);
-    usersfilew.close();
-
-    response.set_content("{\"status\":\"ok\"}", "application/json");
-}
-
-void del_user(const httplib::Request& request, httplib::Response& response) {
-    if (request.body == "") {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
-    nlohmann::json json_body = nlohmann::json::parse(request.body);
-
-    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
-    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-
-    auto decoded_token = jwt::decode(json_body["token"]);
-    std::string userid = "";
-    for (auto& e : decoded_token.get_payload_json()) {
-        if (e.first == "userId") {
-            userid = e.second.to_str();
-            break;
-        }
-    }
-    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-
-    std::ifstream usersfile("users.json");
-    nlohmann::json all_users = nlohmann::json::parse(usersfile);
-    usersfile.close();
-
-    std::string deluserid = userid;
-    if (json_body["userid"] != nullptr) {
-        deluserid = json_body["userid"];
-        nlohmann::json response_user_data = nullptr;
-        for (auto& user : all_users) {
-            if (user["id"] == userid) {
-                response_user_data = user;
-            }
-        }
-        if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-        if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    }
-
-    bool found = false;
-    for (int i = 0; i < all_users.size(); i++) {
-        if (all_users[i]["id"] == deluserid) {
-            all_users.erase(i);
-            found = true;
-            break;
-        }
-    }
-    if (!found) {response.set_content("{\"status\":\"can't find this user\"}", "application/json");return;}
-    std::ofstream usersfilew("users.json");
-    usersfilew << all_users.dump(4);
-    usersfilew.close();
-    response.set_content("{\"status\":\"ok\"}", "application/json");
-}
-
-// functtion for change password for user
-void change_password(const httplib::Request& request, httplib::Response& response) {
-    if (request.body == "") {response.set_content(
-        "{\"required\":\"[token,old_password,new_password] or if you superuser [token,userid,new_password]\"}", 
-        "application/json"
-    );return;}
-    nlohmann::json json_body = nlohmann::json::parse(request.body);
-
-    if (json_body["token"] == nullptr) {response.set_content(
-        "{\"required\":\"[token,old_password,new_password] or if you superuser [token,userid,new_password]\"}", 
-        "application/json"
-    );return;}
-    if ((json_body["userid"] == nullptr) && (json_body["old_password"] == nullptr)) {
-        response.set_content("{\"required\":\"[token,old_password,new_password] or if you superuser [token,userid,new_password]\"}", "application/json");
-        return;
-    }
-    if (json_body["new_password"] == nullptr) {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
-    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-
-    std::string old_password = "";
-    const std::string new_password = json_body["new_password"];
-
-    if (json_body["userid"] == nullptr) {old_password = json_body["old_password"];}
-
-    auto decoded_token = jwt::decode(json_body["token"]);
-    std::string userid = "";
-    for (auto& e : decoded_token.get_payload_json()) {
-        if (e.first == "userId") {
-            userid = e.second.to_str();
-            break;
-        }
-    }
-    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-
-    std::ifstream usersfile("users.json");
-    nlohmann::json all_users = nlohmann::json::parse(usersfile);
-    usersfile.close();
-
-    std::string changepassuserid = userid;
-    if (json_body["userid"] != nullptr) {
-        changepassuserid = json_body["userid"];
-        nlohmann::json response_user_data = nullptr;
-        for (auto& user : all_users) {
-            if (user["id"] == userid) {
-                response_user_data = user;
-            }
-        }
-        if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-        if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
-    }
-
-    bool found = false;
-    if (json_body["userid"] != nullptr) {
-        for (int i = 0; i < all_users.size(); i++) {
-            if ((all_users[i]["id"] == changepassuserid)) {
-                all_users[i]["password"] = new_password;
-                found = true;
-                break;
-            }
-        }
-    } else {
-        for (int i = 0; i < all_users.size(); i++) {
-            if ((all_users[i]["id"] == changepassuserid) && (all_users[i]["password"] == old_password)) {
-                all_users[i]["password"] = new_password;
-                found = true;
-                break;
-            }
-        }
-    }
-    if (!found) {response.set_content("{\"status\":\"can't find this user\"}", "application/json");return;}
-    std::ofstream usersfilew("users.json");
-    usersfilew << all_users.dump(4);
-    usersfilew.close();
-    response.set_content("{\"status\":\"ok\"}", "application/json");
-}
-
-// function for access or reject authorization
-void user_access(const httplib::Request& request, httplib::Response& response) {
-    if (request.body == "") {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
-    nlohmann::json json_body = nlohmann::json::parse(request.body);
-
-    if (json_body["token"] == nullptr) {response.set_content("{\"required\":\"[token]\"}", "application/json");return;}
-    if (!verify_auth(json_body["token"])) {response.set_content("{\"access\":\"reject\"}", "application/json");return;}
-    response.set_content("{\"access\":\"success\"}", "application/json");
-}

src/users/users.hpp

@@ -13,8 +13,8 @@ void get_all_users(const httplib::Request& request, httplib::Response& response)
 void user_access(const httplib::Request& request, httplib::Response& response);
 // function for add user
 void add_user(const httplib::Request& request, httplib::Response& response);
-// function for del user
-void del_user(const httplib::Request& request, httplib::Response& response);
+// function for delete user
+void delete_user(const httplib::Request& request, httplib::Response& response);
 // function for change password for user
 void change_password(const httplib::Request& request, httplib::Response& response);