Merge pull request #23 from hyle-team/dev

package-lock.json

@@ -15,6 +15,7 @@
         "dotenv": "^16.0.3",
         "express": "^4.18.2",
         "express-rate-limit": "^8.2.1",
+        "express-validator": "^7.3.1",
         "jimp": "^0.22.8",
         "jsonwebtoken": "^9.0.0",
         "nanoid": "^5.1.5",
@@ -4280,6 +4281,19 @@
         "express": ">= 4.11"
       }
     },
+    "node_modules/express-validator": {
+      "version": "7.3.1",
+      "resolved": "https://registry.npmjs.org/express-validator/-/express-validator-7.3.1.tgz",
+      "integrity": "sha512-IGenaSf+DnWc69lKuqlRE9/i/2t5/16VpH5bXoqdxWz1aCpRvEdrBuu1y95i/iL5QP8ZYVATiwLFhwk3EDl5vg==",
+      "license": "MIT",
+      "dependencies": {
+        "lodash": "^4.17.21",
+        "validator": "~13.15.23"
+      },
+      "engines": {
+        "node": ">= 8.0.0"
+      }
+    },
     "node_modules/express/node_modules/debug": {
       "version": "2.6.9",
       "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",

package.json

@@ -24,6 +24,7 @@
     "dotenv": "^16.0.3",
     "express": "^4.18.2",
     "express-rate-limit": "^8.2.1",
+    "express-validator": "^7.3.1",
     "jimp": "^0.22.8",
     "jsonwebtoken": "^9.0.0",
     "nanoid": "^5.1.5",

shared/constants.ts

@@ -0,0 +1,3 @@
+export const NON_NEGATIVE_REAL_NUMBER_REGEX = /^\d+(\.\d+)?$/;
+
+export const AUTH_MESSAGE_EXPIRATION_TIME_MS = 5 * 60 * 1000; // 5 minutes

src/controllers/auth.controller.ts

@@ -1,13 +1,39 @@
 import jwt from 'jsonwebtoken';
 import dotenv from 'dotenv';
 import { Request, Response } from 'express';
+import crypto from 'crypto';
+
 import AuthData from '@/interfaces/bodies/user/AuthData.js';
+import RequestAuthBody from '@/interfaces/bodies/auth/RequestAuthBody.js';
+import authMessagesModel from '@/models/AuthMessages.js';
+import { AUTH_MESSAGE_EXPIRATION_TIME_MS } from 'shared/constants.js';
+import RequestAuthRes from '@/interfaces/responses/auth/RequestAuthRes.js';
+import sequelize from '@/sequelize.js';
 import validateWallet from '../methods/validateWallet.js';
 import userModel from '../models/User.js';
 
 dotenv.config();
 
 class AuthController {
+	requestAuth = async (req: Request, res: Response<RequestAuthRes>) => {
+		const { address, alias } = req.body as RequestAuthBody;
+
+		const message = crypto.randomUUID();
+		const expiresAt = new Date(Date.now() + AUTH_MESSAGE_EXPIRATION_TIME_MS);
+
+		const authMessageRow = await authMessagesModel.create({
+			address,
+			alias,
+			message,
+			expiresAt,
+		});
+
+		return res.status(200).send({
+			success: true,
+			data: authMessageRow.message,
+		});
+	};
+
 	async auth(req: Request, res: Response) {
 		try {
 			const userData: AuthData = req.body.data;
@@ -18,6 +44,19 @@ class AuthController {
 				return res.status(400).send({ success: false, data: 'Invalid auth data' });
 			}
 
+			const authMessageRow = await authMessagesModel.findOne({
+				address,
+				alias,
+				message,
+			});
+
+			const isAuthMessageValid =
+				!!authMessageRow && authMessageRow.expires_at.getTime() > Date.now();
+
+			if (!isAuthMessageValid) {
+				return res.status(400).send({ success: false, data: 'Invalid auth message' });
+			}
+
 			const dataValid = !!(
 				userData &&
 				userData.address &&
@@ -28,17 +67,33 @@ class AuthController {
 				return res.status(400).send({ success: false, data: 'Invalid auth data' });
 			}
 
-			const success = await userModel.add(userData);
+			let token: string | undefined;
+
+			await sequelize.transaction(async (transaction) => {
+				const success = await userModel.add(userData, { transaction });
 
 				if (success) {
-				const token = jwt.sign(
+					await authMessagesModel.deleteOne(
+						{
+							address,
+							alias,
+							message,
+						},
+						{ transaction },
+					);
+
+					token = jwt.sign(
 						{ ...userData },
 						process.env.JWT_SECRET || '',
 						neverExpires ? undefined : { expiresIn: '24h' },
 					);
-				res.status(200).send({ success, data: token });
+				}
+			});
+
+			if (token !== undefined) {
+				res.status(200).send({ success: true, data: token });
 			} else {
-				res.status(500).send({ success, data: 'Internal error' });
+				res.status(500).send({ success: false, data: 'Internal error' });
 			}
 		} catch (err) {
 			console.log(err);

src/controllers/dex.controller.ts

@@ -3,6 +3,10 @@ import UserData from '@/interfaces/common/UserData.js';
 import Currency from '@/schemes/Currency.js';
 import Pair from '@/schemes/Pair.js';
 import { Op } from 'sequelize';
+import GetAssetsPriceRatesBody from '@/interfaces/bodies/dex/GetAssetsPriceRatesBody.js';
+import GetAssetsPriceRatesRes, {
+	GetAssetsPriceRatesResPriceRate,
+} from '@/interfaces/responses/dex/GetAssetsPriceRatesRes.js';
 import User from '../schemes/User.js';
 import ordersModel from '../models/Orders.js';
 import dexModel from '../models/Dex.js';
@@ -104,10 +108,10 @@ class DexController {
 		return res.status(200).send(result);
 	}
 
-	async getAssetsPriceRates(req: Request, res: Response) {
-		const { assetsIds } = req.body;
+	getAssetsPriceRates = async (req: Request, res: Response<GetAssetsPriceRatesRes>) => {
+		const { assetsIds } = req.body as GetAssetsPriceRatesBody;
 
-		const currencysRows = await Currency.findAll({
+		const currenciesRows = await Currency.findAll({
 			where: {
 				asset_id: {
 					[Op.in]: assetsIds,
@@ -115,17 +119,9 @@ class DexController {
 			},
 		});
 
-		if (!currencysRows) {
-			return res.status(200).send({
-				success: false,
-				data: 'Assets with this id doesn`t exists',
-			});
-		}
+		const currencyIds = currenciesRows.map((currency) => currency.id);
 
-		const currencyIds = currencysRows.map((currency) => currency.id);
-
-		const pairsRows = (
-			(await Pair.findAll({
+		const pairsRows = (await Pair.findAll({
 			where: {
 				first_currency_id: {
 					[Op.in]: currencyIds,
@@ -139,37 +135,26 @@ class DexController {
 					attributes: ['asset_id'],
 				},
 			],
-			})) || []
-		).map((pair) => ({
-			// eslint-disable-next-line @typescript-eslint/ban-ts-comment
-			// @ts-ignore
-			asset_id: pair?.first_currency?.asset_id,
-			rate: pair.rate,
-		}));
+		})) as (Pair & { first_currency: Currency })[];
 
-		if (!pairsRows || pairsRows.length === 0) {
-			return res.status(200).send({
-				success: false,
-				data: 'Assets with this id doesn`t exists',
+		const priceRates: GetAssetsPriceRatesResPriceRate[] = pairsRows.map((pairRow) => {
+			const assetId = pairRow.first_currency.asset_id;
+
+			return {
+				asset_id: assetId,
+				rate: pairRow?.rate ?? null,
+				day_change: pairRow?.coefficient ?? null,
+				day_volume: pairRow?.volume ?? null,
+				day_high: pairRow?.high ?? null,
+				day_low: pairRow?.low ?? null,
+			};
 		});
-		}
-
-		// const priceRates = await Promise.all(pairsRows.map(async (pair) => {
-		//     const currency = await Currency.findOne({ where: {
-		//         id: pair.first_currency_id
-		//     }})
-
-		//     return {
-		//         asset_id: currency?.asset_id,
-		//         rate: pair.rate
-		//     }
-		// }))
 
 		return res.status(200).send({
 			success: true,
-			priceRates: pairsRows,
+			priceRates,
 		});
-	}
+	};
 
 	async findPairID(req: Request, res: Response) {
 		const { first, second } = req.body;

src/controllers/orders.controller.ts

@@ -1,10 +1,28 @@
 import { Request, Response } from 'express';
 import Decimal from 'decimal.js';
+
+import CreateOrderRes, { CreateOrderErrorCode } from '@/interfaces/responses/orders/CreateOrderRes';
+import GetUserOrdersRes, {
+	GetUserOrdersErrorCode,
+	GetUserOrdersResCurrency,
+	GetUserOrdersResOrderData,
+} from '@/interfaces/responses/orders/GetUserOrdersRes';
+import GetUserOrdersAllPairsBody from '@/interfaces/bodies/orders/GetUserOrdersAllPairsBody';
+import GetUserOrdersAllPairsRes, {
+	GetUserOrdersAllPairsErrorCode,
+	GetUserOrdersAllPairsResPair,
+} from '@/interfaces/responses/orders/GetUserOrdersAllPairsRes';
+import CancelAllBody, { CancelAllBodyOrderType } from '@/interfaces/bodies/orders/CancelAllBody';
+import sequelize from '@/sequelize';
+import CancelAllRes, { CancelAllErrorCode } from '@/interfaces/responses/orders/CancelAllRes';
 import candlesModel from '../models/Candles';
 import ordersModel from '../models/Orders';
 import CreateOrderBody from '../interfaces/bodies/orders/CreateOrderBody';
 import GetUserOrdersPageBody from '../interfaces/bodies/orders/GetUserOrdersPageBody';
-import GetUserOrdersBody from '../interfaces/bodies/orders/GetUserOrdersBody';
+import GetUserOrdersBody, {
+	GetUserOrdersBodyStatus,
+	GetUserOrdersBodyType,
+} from '../interfaces/bodies/orders/GetUserOrdersBody';
 import CancelOrderBody from '../interfaces/bodies/orders/CancelOrderBody';
 import GetCandlesBody from '../interfaces/bodies/orders/GetCandlesBody';
 import GetChartOrdersBody from '../interfaces/bodies/orders/GetChartOrdersBody';
@@ -16,70 +34,97 @@ import Currency from '../schemes/Currency';
 import { validateTokensInput } from '../../shared/utils';
 
 class OrdersController {
-	async createOrder(req: Request, res: Response) {
+	static CURRENCY_DECIMAL_POINT_NOT_FOUND_ERROR_MSG = 'CURRENCY_DECIMAL_POINT_MISSING';
+	async createOrder(req: Request, res: Response<CreateOrderRes>) {
 		try {
-			const { orderData } = req.body as CreateOrderBody;
+			const body = req.body as CreateOrderBody;
+			const { orderData } = body;
+			const { price, amount, pairId } = orderData;
 
-			const isFull =
-				orderData &&
-				orderData?.type &&
-				orderData?.side &&
-				orderData?.price &&
-				orderData?.amount &&
-				orderData?.pairId;
+			const priceDecimal = new Decimal(price);
+			const amountDecimal = new Decimal(amount);
 
-			const priceDecimal = new Decimal(orderData?.price || 0);
-			const amountDecimal = new Decimal(orderData?.amount || 0);
-
-			const pair = await Pair.findByPk(orderData?.pairId);
+			const pair = await Pair.findByPk(pairId);
 
 			const firstCurrency = await Currency.findByPk(pair?.first_currency_id);
 
 			const secondCurrency = await Currency.findByPk(pair?.second_currency_id);
 
 			if (!pair || !firstCurrency || !secondCurrency) {
-				return res.status(400).send({ success: false, data: 'Invalid pair data' });
+				return res.status(400).send({
+					success: false,
+					data: CreateOrderErrorCode.INVALID_ORDER_DATA,
+				});
 			}
 
-			const firstCurrencyDecimalPoint = firstCurrency?.asset_info?.decimal_point || 12;
-			const secondCurrencyDecimalPoint = secondCurrency?.asset_info?.decimal_point || 12;
+			const firstCurrencyDP = firstCurrency.asset_info?.decimal_point;
+			const secondCurrencyDP = secondCurrency.asset_info?.decimal_point;
 
-			const rangeCorrect = (() => {
-				const priceCorrect = validateTokensInput(
-					orderData?.price,
-					secondCurrencyDecimalPoint,
-				).valid;
-				const amountCorrect = validateTokensInput(
-					orderData?.amount,
-					firstCurrencyDecimalPoint,
-				).valid;
-
-				return priceCorrect && amountCorrect;
-			})();
-
-			const priceDecimalPointCorrect = priceDecimal.toString().replace('.', '').length <= 20;
-			const amountDecimalPointCorrect =
-				amountDecimal.toString().replace('.', '').length <= 18;
-
-			if (!priceDecimalPointCorrect || !amountDecimalPointCorrect) {
-				return res.status(400).send({ success: false, data: 'Invalid pair data' });
+			if (firstCurrencyDP === undefined || secondCurrencyDP === undefined) {
+				throw new Error(OrdersController.CURRENCY_DECIMAL_POINT_NOT_FOUND_ERROR_MSG);
 			}
 
-			if (!isFull || !rangeCorrect)
-				return res.status(400).send({ success: false, data: 'Invalid order data' });
+			const totalDecimal = priceDecimal.mul(amountDecimal);
+			const total = totalDecimal.toFixed();
+
+			const isPriceValid = validateTokensInput(price, secondCurrencyDP).valid;
+			const isAmountValid = validateTokensInput(amount, firstCurrencyDP).valid;
+			const isTotalValid = validateTokensInput(total, secondCurrencyDP).valid;
+
+			const areAmountsValid = isPriceValid && isAmountValid && isTotalValid;
+
+			if (!areAmountsValid) {
+				return res.status(400).send({
+					success: false,
+					data: CreateOrderErrorCode.INVALID_ORDER_DATA,
+				});
+			}
 
 			const result = await ordersModel.createOrder(req.body);
 
-			if (result.data === 'Invalid order data') return res.status(400).send(result);
+			if (result.data === 'Invalid order data')
+				return res.status(400).send({
+					success: false,
+					data: CreateOrderErrorCode.INVALID_ORDER_DATA,
+				});
 
-			if (result.data === 'Same order') return res.status(400).send(result);
+			if (result.data === 'Same order')
+				return res.status(400).send({
+					success: false,
+					data: CreateOrderErrorCode.SAME_ORDER,
+				});
 
-			if (result.data === 'Internal error') return res.status(500).send(result);
+			if (result.data === 'Internal error') {
+				throw new Error('orderModel.createOrder returned Internal error');
+			}
 
-			res.status(200).send(result);
+			if (typeof result.data === 'string') {
+				throw new Error('Invalid orderModel.createOrder result');
+			}
+
+			const createdOrder = result.data;
+
+			res.status(200).send({
+				success: true,
+				data: {
+					id: createdOrder.id,
+					type: createdOrder.type,
+					timestamp: createdOrder.timestamp,
+					side: createdOrder.side,
+					price: createdOrder.price,
+					amount: createdOrder.amount,
+					total: createdOrder.total,
+					pair_id: createdOrder.pairId,
+					user_id: createdOrder.userId,
+					status: createdOrder.status,
+					left: createdOrder.left,
+					hasNotification: createdOrder.hasNotification,
+					immediateMatch: createdOrder.immediateMatch,
+				},
+			});
 		} catch (err) {
 			console.log(err);
-			res.status(500).send({ success: false, data: 'Unhandled error' });
+			res.status(500).send({ success: false, data: CreateOrderErrorCode.UNHANDLED_ERROR });
 		}
 	}
 
@@ -128,21 +173,171 @@ class OrdersController {
 		}
 	}
 
-	async getUserOrders(req: Request, res: Response) {
+	private fromGetUserOrdersServiceToResCurrencyMapper(
+		currency: Currency,
+	): GetUserOrdersResCurrency {
+		return {
+			id: currency.id,
+			name: currency.name,
+			code: currency.code,
+			type: currency.type,
+			asset_id: currency.asset_id,
+			auto_parsed: currency.auto_parsed,
+			asset_info: currency.asset_info
+				? {
+					asset_id: currency.asset_info.asset_id,
+					logo: currency.asset_info.logo,
+					price_url: currency.asset_info.price_url,
+					ticker: currency.asset_info.ticker,
+					full_name: currency.asset_info.full_name,
+					total_max_supply: currency.asset_info.total_max_supply,
+					current_supply: currency.asset_info.current_supply,
+					decimal_point: currency.asset_info.decimal_point,
+					meta_info: currency.asset_info.meta_info,
+				}
+				: undefined,
+			whitelisted: currency.whitelisted,
+		};
+	}
+	getUserOrders = async (req: Request, res: Response<GetUserOrdersRes>) => {
 		try {
-			await userModel.resetExchangeNotificationsAmount(
-				(req.body.userData as UserData).address,
-			);
-			const result = await ordersModel.getUserOrders(req.body as GetUserOrdersBody);
+			const body = req.body as GetUserOrdersBody;
+			const { userData, offset, limit, filterInfo } = body;
 
-			if (result.data === 'Internal error') return res.status(500).send(result);
+			await userModel.resetExchangeNotificationsAmount(userData.address);
 
-			res.status(200).send(result);
+			const serviceOrderType: 'buy' | 'sell' | undefined = (() => {
+				if (filterInfo?.type === undefined) {
+					return undefined;
+				}
+
+				return filterInfo.type === GetUserOrdersBodyType.BUY ? 'buy' : 'sell';
+			})();
+
+			const serviceOrderStatus: 'active' | 'finished' | undefined = (() => {
+				if (filterInfo?.status === undefined) {
+					return undefined;
+				}
+
+				return filterInfo.status === GetUserOrdersBodyStatus.ACTIVE ? 'active' : 'finished';
+			})();
+
+			const result = await ordersModel.getUserOrders({
+				address: userData.address,
+				offset,
+				limit,
+				filterInfo: {
+					pairId: filterInfo.pairId,
+					type: serviceOrderType,
+					status: serviceOrderStatus,
+					date:
+						filterInfo.date !== undefined
+							? {
+								from: filterInfo.date.from,
+								to: filterInfo.date.to,
+							}
+							: undefined,
+				},
+			});
+
+			if (result.data === 'Internal error') {
+				throw new Error('ordersModel.getUserOrders returned Internal error');
+			}
+
+			const { totalItemsCount } = result;
+
+			const userOrders = result.data.map((order) => {
+				const mappedOrder: GetUserOrdersResOrderData = {
+					id: order.id,
+					type: order.type,
+					timestamp: order.timestamp,
+					side: order.side,
+					price: order.price,
+					amount: order.amount,
+					total: order.total,
+					pair_id: order.pair_id,
+					user_id: order.user_id,
+					status: order.status,
+					left: order.left,
+					hasNotification: order.hasNotification,
+					pair: {
+						id: order.pair.id,
+						first_currency_id: order.pair.first_currency_id,
+						second_currency_id: order.pair.second_currency_id,
+						rate: order.pair.rate,
+						coefficient: order.pair.coefficient,
+						high: order.pair.high,
+						low: order.pair.low,
+						volume: order.pair.volume,
+						featured: order.pair.featured,
+						first_currency: this.fromGetUserOrdersServiceToResCurrencyMapper(
+							order.pair.first_currency,
+						),
+						second_currency: this.fromGetUserOrdersServiceToResCurrencyMapper(
+							order.pair.second_currency,
+						),
+					},
+					first_currency: this.fromGetUserOrdersServiceToResCurrencyMapper(
+						order.first_currency,
+					),
+					second_currency: this.fromGetUserOrdersServiceToResCurrencyMapper(
+						order.second_currency,
+					),
+					isInstant: order.isInstant,
+				};
+
+				return mappedOrder;
+			});
+
+			res.status(200).send({
+				success: true,
+				totalItemsCount,
+				data: userOrders,
+			});
 		} catch (err) {
 			console.log(err);
-			res.status(500).send({ success: false, data: 'Unhandled error' });
+			res.status(500).send({
+				success: false,
+				data: GetUserOrdersErrorCode.UNHANDLED_ERROR,
+			});
 		}
+	};
+
+	getUserOrdersAllPairs = async (req: Request, res: Response<GetUserOrdersAllPairsRes>) => {
+		try {
+			const body = req.body as GetUserOrdersAllPairsBody;
+			const { userData } = body;
+
+			const getUserOrdersAllPairsResult = await ordersModel.getUserOrdersAllPairs(
+				userData.address,
+			);
+
+			const pairs = getUserOrdersAllPairsResult.data;
+
+			const responsePairs: GetUserOrdersAllPairsResPair[] = pairs.map((pair) => ({
+				id: pair.id,
+				firstCurrency: {
+					id: pair.firstCurrency.id,
+					ticker: pair.firstCurrency.ticker,
+				},
+				secondCurrency: {
+					id: pair.secondCurrency.id,
+					ticker: pair.secondCurrency.ticker,
+				},
+			}));
+
+			res.status(200).send({
+				success: true,
+				data: responsePairs,
+			});
+		} catch (err) {
+			console.log(err);
+			res.status(500).send({
+				success: false,
+				data: GetUserOrdersAllPairsErrorCode.UNHANDLED_ERROR,
+			});
 		}
+	};
 
 	async cancelOrder(req: Request, res: Response) {
 		try {
@@ -260,6 +455,51 @@ class OrdersController {
 			res.status(500).send({ success: false, data: 'Unhandled error' });
 		}
 	}
+
+	async cancelAll(req: Request, res: Response<CancelAllRes>) {
+		try {
+			const body = req.body as CancelAllBody;
+			const { userData, filterInfo } = body;
+
+			const filterType = (() => {
+				if (filterInfo.type === undefined) {
+					return undefined;
+				}
+
+				return filterInfo.type === CancelAllBodyOrderType.BUY
+					? GetUserOrdersBodyType.BUY
+					: GetUserOrdersBodyType.SELL;
+			})();
+
+			await sequelize.transaction(async (transaction) => {
+				await ordersModel.cancelAll(
+					{
+						address: userData.address,
+						filterInfo: {
+							pairId: filterInfo.pairId,
+							type: filterType,
+							date:
+								filterInfo.date !== undefined
+									? {
+										from: filterInfo.date.from,
+										to: filterInfo.date.to,
+									}
+									: undefined,
+						},
+					},
+					{ transaction },
+				);
+			});
+
+			res.status(200).send({ success: true });
+		} catch (err) {
+			console.log(err);
+			res.status(500).send({
+				success: false,
+				data: CancelAllErrorCode.UNHANDLED_ERROR,
+			});
+		}
+	}
 }
 
 const ordersController = new OrdersController();

src/interfaces/bodies/auth/RequestAuthBody.ts

@@ -0,0 +1,13 @@
+import { body } from 'express-validator';
+
+interface RequestAuthBody {
+	address: string;
+	alias: string;
+}
+
+export const requestAuthBodyValidator = [
+	body('address').isString().notEmpty(),
+	body('alias').isString().notEmpty(),
+];
+
+export default RequestAuthBody;

src/interfaces/bodies/dex/GetAssetsPriceRatesBody.ts

@@ -0,0 +1,14 @@
+import { body } from 'express-validator';
+
+interface GetAssetsPriceRatesBody {
+	assetsIds: string[];
+}
+
+export const getAssetsPriceRatesValidator = [
+	body('assetsIds')
+		.isArray({ min: 1 })
+		.withMessage('assetsIds must be a non-empty array of strings'),
+	body('assetsIds.*').isString().withMessage('Each assetId must be a string'),
+];
+
+export default GetAssetsPriceRatesBody;

src/interfaces/bodies/orders/CancelAllBody.ts

@@ -0,0 +1,50 @@
+import UserData from '@/interfaces/common/UserData';
+import { body } from 'express-validator';
+
+export enum CancelAllBodyOrderType {
+	// eslint-disable-next-line no-unused-vars
+	BUY = 'buy',
+	// eslint-disable-next-line no-unused-vars
+	SELL = 'sell',
+}
+
+interface CancelAllBody {
+	userData: UserData;
+
+	filterInfo: {
+		pairId?: number;
+		type?: CancelAllBodyOrderType;
+		date?: {
+			// UNIX timestamps in milliseconds
+			from: number;
+			to: number;
+		};
+	};
+}
+
+export const cancelAllValidator = [
+	body('filterInfo').isObject().withMessage('filterInfo must be an object'),
+	body('filterInfo.pairId')
+		.optional()
+		.isInt({ min: 0 })
+		.withMessage('filterInfo.pairId must be a non-negative integer'),
+	body('filterInfo.type')
+		.optional()
+		.isIn(Object.values(CancelAllBodyOrderType))
+		.withMessage(`Invalid filterInfo.type value`),
+	body('filterInfo.date').optional().isObject().withMessage('filterInfo.date must be an object'),
+	body('filterInfo.date.from')
+		.if(body('filterInfo.date').isObject())
+		.isInt({ min: 0 })
+		.withMessage(
+			'filterInfo.date.from must be a non-negative integer representing a UNIX timestamp in milliseconds',
+		),
+	body('filterInfo.date.to')
+		.if(body('filterInfo.date').isObject())
+		.isInt({ min: 0 })
+		.withMessage(
+			'filterInfo.date.to must be a non-negative integer representing a UNIX timestamp in milliseconds',
+		),
+];
+
+export default CancelAllBody;

src/interfaces/bodies/orders/CreateOrderBody.ts

@@ -1,10 +1,24 @@
-import OfferType from '../../common/OfferType';
-import Side from '../../common/Side';
+import { body } from 'express-validator';
+import { NON_NEGATIVE_REAL_NUMBER_REGEX } from 'shared/constants';
 import UserData from '../../common/UserData';
 
-interface OrderData {
-	type: OfferType;
-	side: Side;
+export enum CreateOrderType {
+	// eslint-disable-next-line no-unused-vars
+	BUY = 'buy',
+	// eslint-disable-next-line no-unused-vars
+	SELL = 'sell',
+}
+
+export enum CreateOrderSide {
+	// eslint-disable-next-line no-unused-vars
+	LIMIT = 'limit',
+	// eslint-disable-next-line no-unused-vars
+	MARKET = 'market',
+}
+
+interface CreateOrderData {
+	type: CreateOrderType;
+	side: CreateOrderSide;
 	price: string;
 	amount: string;
 	pairId: string;
@@ -12,7 +26,26 @@ interface OrderData {
 
 interface CreateOrderBody {
 	userData: UserData;
-	orderData: OrderData;
+	orderData: CreateOrderData;
 }
 
+export const createOrderValidator = [
+	body('orderData').isObject().withMessage('orderData must be an object'),
+	body('orderData.type')
+		.isIn(Object.values(CreateOrderType))
+		.withMessage(`Invalid orderData.type value`),
+	body('orderData.side')
+		.isIn(Object.values(CreateOrderSide))
+		.withMessage(`Invalid orderData.side value`),
+	body('orderData.price')
+		.isString()
+		.matches(NON_NEGATIVE_REAL_NUMBER_REGEX)
+		.withMessage('orderData.price must be a positive decimal string'),
+	body('orderData.amount')
+		.isString()
+		.matches(NON_NEGATIVE_REAL_NUMBER_REGEX)
+		.withMessage('orderData.amount must be a positive decimal string'),
+	body('orderData.pairId').isString().withMessage('orderData.pairId must be a string'),
+];
+
 export default CreateOrderBody;

src/interfaces/bodies/orders/GetUserOrdersAllPairsBody.ts

@@ -0,0 +1,9 @@
+import UserData from '@/interfaces/common/UserData';
+
+interface GetUserOrdersAllPairsBody {
+	userData: UserData;
+}
+
+export const getUserOrdersAllPairsValidator = [];
+
+export default GetUserOrdersAllPairsBody;

src/interfaces/bodies/orders/GetUserOrdersBody.ts

@@ -1,7 +1,68 @@
-import UserData from '../../common/UserData';
+import UserData from '@/interfaces/common/UserData';
+import { body } from 'express-validator';
+
+export enum GetUserOrdersBodyStatus {
+	// eslint-disable-next-line no-unused-vars
+	ACTIVE = 'active',
+	// eslint-disable-next-line no-unused-vars
+	FINISHED = 'finished',
+}
+
+export enum GetUserOrdersBodyType {
+	// eslint-disable-next-line no-unused-vars
+	BUY = 'buy',
+	// eslint-disable-next-line no-unused-vars
+	SELL = 'sell',
+}
 
 interface GetUserOrdersBody {
 	userData: UserData;
+
+	limit: number;
+	offset: number;
+	filterInfo: {
+		pairId?: number;
+		status?: GetUserOrdersBodyStatus;
+		type?: GetUserOrdersBodyType;
+		date?: {
+			// UNIX timestamps in milliseconds
+			from: number;
+			to: number;
+		};
+	};
 }
 
+export const getUserOrdersValidator = [
+	body('limit')
+		.isInt({ min: 1, max: 1000 })
+		.withMessage('limit must be a positive integer within certain range'),
+	body('offset').isInt({ min: 0 }).withMessage('offset must be a non-negative integer'),
+	body('filterInfo').isObject().withMessage('filterInfo must be an object'),
+	body('filterInfo.pairId')
+		.optional()
+		.isInt({ min: 0 })
+		.withMessage('filterInfo.pairId must be a non-negative integer'),
+	body('filterInfo.status')
+		.optional()
+		.isIn(Object.values(GetUserOrdersBodyStatus))
+		.withMessage(`Invalid filterInfo.status value`),
+	body('filterInfo.type')
+		.optional()
+		.isIn(Object.values(GetUserOrdersBodyType))
+		.withMessage(`Invalid filterInfo.type value`),
+	body('filterInfo.date').optional().isObject().withMessage('filterInfo.date must be an object'),
+	body('filterInfo.date.from')
+		.if(body('filterInfo.date').isObject())
+		.isInt({ min: 0 })
+		.withMessage(
+			'filterInfo.date.from must be a non-negative integer representing a UNIX timestamp in milliseconds',
+		),
+	body('filterInfo.date.to')
+		.if(body('filterInfo.date').isObject())
+		.isInt({ min: 0 })
+		.withMessage(
+			'filterInfo.date.to must be a non-negative integer representing a UNIX timestamp in milliseconds',
+		),
+];
+
 export default GetUserOrdersBody;

src/interfaces/database/modifiedRequests.ts

@@ -32,3 +32,7 @@ export interface PairWithCurrencies extends Pair {
 export interface OrderWithPairAndCurrencies extends Order {
 	pair: PairWithCurrencies;
 }
+
+export interface PairWithIdAndCurrencies extends PairWithCurrencies {
+	id: number;
+}

src/interfaces/responses/auth/RequestAuthRes.ts

@@ -0,0 +1,7 @@
+interface RequestAuthRes {
+	success: true;
+	// Auth message
+	data: string;
+}
+
+export default RequestAuthRes;

src/interfaces/responses/dex/GetAssetsPriceRatesRes.ts

@@ -0,0 +1,24 @@
+export type GetAssetsPriceRatesResPriceRate = {
+	asset_id: string;
+	rate: number | null;
+	day_change: number | null;
+	day_volume: number | null;
+	day_high: number | null;
+	day_low: number | null;
+};
+
+export type GetAssetsPriceRatesSuccessRes = {
+	success: true;
+	priceRates: GetAssetsPriceRatesResPriceRate[];
+};
+
+export enum GetAssetsPriceRatesErrorCode {}
+
+export type GetAssetsPriceRatesErrorRes = {
+	success: false;
+	data: GetAssetsPriceRatesErrorCode;
+};
+
+type GetAssetsPriceRatesRes = GetAssetsPriceRatesSuccessRes | GetAssetsPriceRatesErrorRes;
+
+export default GetAssetsPriceRatesRes;

src/interfaces/responses/orders/CancelAllRes.ts

@@ -0,0 +1,17 @@
+export type CancelAllSuccessRes = {
+	success: true;
+};
+
+export enum CancelAllErrorCode {
+	// eslint-disable-next-line no-unused-vars
+	UNHANDLED_ERROR = 'Unhandled error',
+}
+
+export type CancelAllErrorRes = {
+	success: false;
+	data: CancelAllErrorCode;
+};
+
+type CancelAllRes = CancelAllSuccessRes | CancelAllErrorRes;
+
+export default CancelAllRes;

src/interfaces/responses/orders/CreateOrderRes.ts

@@ -0,0 +1,36 @@
+export type CreateOrderSuccessRes = {
+	success: true;
+	data: {
+		hasNotification: boolean;
+		id: number;
+		type: string;
+		timestamp: number;
+		side: string;
+		price: string;
+		amount: string;
+		total: string;
+		pair_id: number;
+		user_id: number;
+		status: string;
+		left: string;
+		immediateMatch?: true;
+	};
+};
+
+export enum CreateOrderErrorCode {
+	// eslint-disable-next-line no-unused-vars
+	INVALID_ORDER_DATA = 'Invalid order data',
+	// eslint-disable-next-line no-unused-vars
+	SAME_ORDER = 'Same order',
+	// eslint-disable-next-line no-unused-vars
+	UNHANDLED_ERROR = 'Unhandled error',
+}
+
+export type CreateOrderErrorRes = {
+	success: false;
+	data: CreateOrderErrorCode;
+};
+
+type CreateOrderRes = CreateOrderSuccessRes | CreateOrderErrorRes;
+
+export default CreateOrderRes;

src/interfaces/responses/orders/GetUserOrdersAllPairsRes.ts

@@ -0,0 +1,30 @@
+export type GetUserOrdersAllPairsResPair = {
+	id: number;
+	firstCurrency: {
+		id: number;
+		ticker: string;
+	};
+	secondCurrency: {
+		id: number;
+		ticker: string;
+	};
+};
+
+export type GetUserOrdersAllPairsSuccessRes = {
+	success: true;
+	data: GetUserOrdersAllPairsResPair[];
+};
+
+export enum GetUserOrdersAllPairsErrorCode {
+	// eslint-disable-next-line no-unused-vars
+	UNHANDLED_ERROR = 'Unhandled error',
+}
+
+export type GetUserOrdersAllPairsErrorRes = {
+	success: false;
+	data: GetUserOrdersAllPairsErrorCode;
+};
+
+type GetUserOrdersAllPairsRes = GetUserOrdersAllPairsSuccessRes | GetUserOrdersAllPairsErrorRes;
+
+export default GetUserOrdersAllPairsRes;

src/interfaces/responses/orders/GetUserOrdersRes.ts

@@ -0,0 +1,74 @@
+export type GetUserOrdersResCurrency = {
+	id: number;
+	name: string;
+	code: string;
+	type: string;
+	asset_id: string;
+	auto_parsed: boolean;
+	asset_info?: {
+		asset_id: string;
+		logo: string;
+		price_url: string;
+		ticker: string;
+		full_name: string;
+		total_max_supply: string;
+		current_supply: string;
+		decimal_point: number;
+		meta_info: string;
+	};
+	whitelisted: boolean;
+};
+
+export type GetUserOrdersResOrderData = {
+	id: number;
+	type: string;
+	timestamp: number;
+	side: string;
+	price: string;
+	amount: string;
+	total: string;
+	pair_id: number;
+	user_id: number;
+	status: string;
+	left: string;
+	hasNotification: boolean;
+
+	pair: {
+		id: number;
+		first_currency_id: number;
+		second_currency_id: number;
+		rate?: number;
+		coefficient?: number;
+		high?: number;
+		low?: number;
+		volume: number;
+		featured: boolean;
+
+		first_currency: GetUserOrdersResCurrency;
+		second_currency: GetUserOrdersResCurrency;
+	};
+
+	first_currency: GetUserOrdersResCurrency;
+	second_currency: GetUserOrdersResCurrency;
+	isInstant: boolean;
+};
+
+export type GetUserOrdersSuccessRes = {
+	success: true;
+	totalItemsCount: number;
+	data: GetUserOrdersResOrderData[];
+};
+
+export enum GetUserOrdersErrorCode {
+	// eslint-disable-next-line no-unused-vars
+	UNHANDLED_ERROR = 'Unhandled error',
+}
+
+export type GetUserOrdersErrorRes = {
+	success: false;
+	data: GetUserOrdersErrorCode;
+};
+
+type GetUserOrdersRes = GetUserOrdersSuccessRes | GetUserOrdersErrorRes;
+
+export default GetUserOrdersRes;

src/middleware/middleware.ts

@@ -1,4 +1,5 @@
 import { NextFunction, Request, Response } from 'express';
+import { ValidationChain, validationResult } from 'express-validator';
 import { rateLimit } from 'express-rate-limit';
 import jwt from 'jsonwebtoken';
 import User from '@/schemes/User';
@@ -49,6 +50,49 @@ class Middleware {
 
 	defaultRateLimit = async (req: Request, res: Response, next: NextFunction) =>
 		defaultRateLimitMiddleware(req, res, next);
+	expressValidator(validators: ValidationChain[]) {
+		return [
+			...validators,
+			(req: Request, res: Response, next: NextFunction) => {
+				const errors = validationResult(req);
+
+				if (!errors.isEmpty()) {
+					res.status(500).send({
+						success: false,
+						data: 'Internal error',
+					});
+					return;
+				}
+
+				next();
+			},
+		];
+	}
+
+	expressJSONErrorHandler = (err: Error, req: Request, res: Response, next: NextFunction) => {
+		const isExpressJSONError =
+			err instanceof SyntaxError && 'status' in err && err.status === 400 && 'body' in err;
+
+		if (isExpressJSONError) {
+			res.status(500).send({
+				success: false,
+				data: 'Internal error',
+			});
+		} else {
+			next();
+		}
+	};
+
+	globalErrorHandler = (err: Error, req: Request, res: Response, _next: NextFunction) => {
+		console.error('Global error handler:');
+		console.error(err);
+		res.status(500).send({
+			success: false,
+			data: 'Internal error',
+		});
+	};
+
+	resultGlobalErrorHandler = [this.expressJSONErrorHandler, this.globalErrorHandler];
 }
 
 const middleware = new Middleware();

src/models/AuthMessages.ts

@@ -0,0 +1,89 @@
+import { Op, Transaction } from 'sequelize';
+
+import AuthMessage from '@/schemes/AuthMessage';
+
+class AuthMessagesModel {
+	create = async (
+		{
+			address,
+			alias,
+			message,
+			expiresAt,
+		}: {
+			address: string;
+			alias: string;
+			message: string;
+			expiresAt: Date;
+		},
+		{ transaction }: { transaction?: Transaction } = {},
+	): Promise<AuthMessage> => {
+		const authMessage = await AuthMessage.create(
+			{
+				address,
+				alias,
+				message,
+				expires_at: expiresAt,
+			},
+			{ transaction },
+		);
+
+		return authMessage;
+	};
+
+	findOne = async ({
+		address,
+		alias,
+		message,
+	}: {
+		address: string;
+		alias: string;
+		message: string;
+	}): Promise<AuthMessage | null> =>
+		AuthMessage.findOne({
+			where: {
+				address,
+				alias,
+				message,
+			},
+		});
+
+	deleteOne = async (
+		{
+			address,
+			alias,
+			message,
+		}: {
+			address: string;
+			alias: string;
+			message: string;
+		},
+		{ transaction }: { transaction?: Transaction } = {},
+	): Promise<void> => {
+		await AuthMessage.destroy({
+			where: {
+				address,
+				alias,
+				message,
+			},
+			transaction,
+		});
+	};
+
+	deleteAllExpired = async (
+		{ now }: { now: Date },
+		{ transaction }: { transaction?: Transaction } = {},
+	): Promise<void> => {
+		await AuthMessage.destroy({
+			where: {
+				expires_at: {
+					[Op.lt]: now,
+				},
+			},
+			transaction,
+		});
+	};
+}
+
+const authMessagesModel = new AuthMessagesModel();
+
+export default authMessagesModel;

src/models/Dex.ts

@@ -38,8 +38,58 @@ class DexModel {
 	}
 
 	private getPairsSearchCondition(searchText: string, whitelistedOnly: boolean) {
+		const tickerRegexp = /^[A-Za-z0-9]{1,14}$/;
+		const fullNameRegexp = /^[A-Za-z0-9.,:!?\-() ]*$/;
+
+		const firstFullNameExpr = Sequelize.literal(`"first_currency"."asset_info"->>'full_name'`);
+		const secondFullNameExpr = Sequelize.literal(
+			`"second_currency"."asset_info"->>'full_name'`,
+		);
+
 		const searchCondition: WhereOptions = {
 			[Op.and]: [
+				Sequelize.where(Sequelize.col('first_currency.name'), {
+					[Op.regexp]: tickerRegexp.source,
+				}),
+				{
+					[Op.or]: [
+						Sequelize.where(Sequelize.col('first_currency.asset_info'), {
+							[Op.is]: null,
+						}),
+						Sequelize.where(firstFullNameExpr, { [Op.is]: null }),
+						{
+							[Op.and]: [
+								Sequelize.where(firstFullNameExpr, {
+									[Op.regexp]: fullNameRegexp.source,
+								}),
+								Sequelize.where(Sequelize.fn('char_length', firstFullNameExpr), {
+									[Op.lte]: 400,
+								}),
+							],
+						},
+					],
+				},
+				Sequelize.where(Sequelize.col('second_currency.name'), {
+					[Op.regexp]: tickerRegexp.source,
+				}),
+				{
+					[Op.or]: [
+						Sequelize.where(Sequelize.col('second_currency.asset_info'), {
+							[Op.is]: null,
+						}),
+						Sequelize.where(secondFullNameExpr, { [Op.is]: null }),
+						{
+							[Op.and]: [
+								Sequelize.where(secondFullNameExpr, {
+									[Op.regexp]: fullNameRegexp.source,
+								}),
+								Sequelize.where(Sequelize.fn('char_length', secondFullNameExpr), {
+									[Op.lte]: 400,
+								}),
+							],
+						},
+					],
+				},
 				{
 					[Op.or]: [
 						Sequelize.where(
@@ -70,7 +120,20 @@ class DexModel {
 			],
 		};
 
-		return searchCondition;
+		const includeCondition = [
+			{
+				model: Currency,
+				as: 'first_currency',
+				attributes: ['asset_id', 'code', 'id', 'name', 'type', 'whitelisted'],
+			},
+			{
+				model: Currency,
+				as: 'second_currency',
+				attributes: ['asset_id', 'code', 'id', 'name', 'type', 'whitelisted'],
+			},
+		];
+
+		return { searchCondition, includeCondition };
 	}
 
 	async getPairRow(id: number) {
@@ -88,7 +151,10 @@ class DexModel {
 		sortOption: PairSortOption,
 	) {
 		try {
-			const searchCondition = this.getPairsSearchCondition(searchText, whitelistedOnly);
+			const { searchCondition, includeCondition } = this.getPairsSearchCondition(
+				searchText,
+				whitelistedOnly,
+			);
 
 			const volumeSortDirection =
 				sortOption === PairSortOption.VOLUME_LOW_TO_HIGH ? 'ASC' : 'DESC';
@@ -105,18 +171,7 @@ class DexModel {
 					'volume',
 					'featured',
 				],
-				include: [
-					{
-						model: Currency,
-						as: 'first_currency',
-						attributes: ['asset_id', 'code', 'id', 'name', 'type', 'whitelisted'],
-					},
-					{
-						model: Currency,
-						as: 'second_currency',
-						attributes: ['asset_id', 'code', 'id', 'name', 'type', 'whitelisted'],
-					},
-				],
+				include: includeCondition,
 				where: searchCondition,
 				order: [
 					['volume', volumeSortDirection],
@@ -152,21 +207,13 @@ class DexModel {
 
 	async getPairsPagesAmount(searchText: string, whitelistedOnly: boolean) {
 		try {
-			const searchCondition = this.getPairsSearchCondition(searchText, whitelistedOnly);
+			const { searchCondition, includeCondition } = this.getPairsSearchCondition(
+				searchText,
+				whitelistedOnly,
+			);
 
 			const count = await Pair.count({
-				include: [
-					{
-						model: Currency,
-						as: 'first_currency',
-						attributes: ['asset_id', 'code', 'id', 'name', 'type'],
-					},
-					{
-						model: Currency,
-						as: 'second_currency',
-						attributes: ['asset_id', 'code', 'id', 'name', 'type'],
-					},
-				],
+				include: includeCondition,
 				where: searchCondition,
 			});
 

src/models/Orders.ts

@@ -1,13 +1,12 @@
-import { Op } from 'sequelize';
+import { Op, Transaction as SequelizeTransaction, WhereOptions } from 'sequelize';
 import Decimal from 'decimal.js';
 import TransactionWithOrders from '@/interfaces/common/Transaction.js';
 import Currency from '@/schemes/Currency.js';
 import {
-	OrderWithAllTransactions,
-	OrderWithPair,
 	OrderWithPairAndCurrencies,
+	PairWithCurrencies,
+	PairWithIdAndCurrencies,
 } from '@/interfaces/database/modifiedRequests.js';
-import configModel from './Config.js';
 import dexModel from './Dex.js';
 import userModel from './User.js';
 import exchangeModel from './ExchangeTransactions.js';
@@ -22,10 +21,9 @@ import io from '../server.js';
 import ApplyTip from '../interfaces/responses/orders/ApplyTip.js';
 import CreateOrderBody from '../interfaces/bodies/orders/CreateOrderBody.js';
 import GetUserOrdersPageBody from '../interfaces/bodies/orders/GetUserOrdersPageBody.js';
-import GetUserOrdersBody from '../interfaces/bodies/orders/GetUserOrdersBody.js';
 import CancelOrderBody from '../interfaces/bodies/orders/CancelOrderBody.js';
 import ApplyOrderBody from '../interfaces/bodies/orders/ApplyOrderBody.js';
-import Order from '../schemes/Order';
+import Order, { OrderStatus, OrderType } from '../schemes/Order';
 import User from '../schemes/User';
 import Transaction from '../schemes/Transaction';
 import Pair from '../schemes/Pair';
@@ -68,7 +66,30 @@ class OrdersModel {
 		return matchedOrders;
 	}
 
-	async createOrder(body: CreateOrderBody) {
+	async createOrder(body: CreateOrderBody): Promise<
+	| {
+		success: false;
+		data: string;
+		  }
+	| {
+		success: true;
+		data: {
+			id: number;
+			type: string;
+			timestamp: number;
+			side: string;
+			price: string;
+			amount: string;
+			total: string;
+			pairId: number;
+			userId: number;
+			status: string;
+			left: string;
+			hasNotification: boolean;
+			immediateMatch?: true;
+		};
+		  }
+	> {
 		try {
 			const { orderData } = body;
 			const { userData } = body;
@@ -173,13 +194,41 @@ class OrdersModel {
 				return {
 					success: true,
 					data: {
-						...newOrder.toJSON(),
+						id: newOrder.id,
+						type: newOrder.type,
+						timestamp: newOrder.timestamp,
+						side: newOrder.side,
+						price: newOrder.price,
+						amount: newOrder.amount,
+						total: newOrder.total,
+						pairId: newOrder.pair_id,
+						userId: newOrder.user_id,
+						status: newOrder.status,
+						left: newOrder.left,
+						hasNotification: newOrder.hasNotification,
+
 						immediateMatch: true,
 					},
 				};
 			}
 
-			return { success: true, data: newOrder.toJSON() };
+			return {
+				success: true,
+				data: {
+					id: newOrder.id,
+					type: newOrder.type,
+					timestamp: newOrder.timestamp,
+					side: newOrder.side,
+					price: newOrder.price,
+					amount: newOrder.amount,
+					total: newOrder.total,
+					pairId: newOrder.pair_id,
+					userId: newOrder.user_id,
+					status: newOrder.status,
+					left: newOrder.left,
+					hasNotification: newOrder.hasNotification,
+				},
+			};
 		} catch (err) {
 			console.log(err);
 			return { success: false, data: 'Internal error' };
@@ -336,17 +385,85 @@ class OrdersModel {
 		}
 	}
 
-	async getUserOrders(body: GetUserOrdersBody) {
+	async getUserOrders({
+		address,
+		offset,
+		limit,
+		filterInfo: { pairId, status, type, date },
+	}: {
+		address: string;
+		offset: number;
+		limit: number;
+		filterInfo: {
+			pairId?: number;
+			status?: 'active' | 'finished';
+			type?: 'buy' | 'sell';
+			date?: {
+				from: number;
+				to: number;
+			};
+		};
+	}): Promise<
+		| {
+			success: false;
+			data: 'Internal error';
+		  }
+		| {
+			success: true;
+			totalItemsCount: number;
+			data: {
+				id: number;
+				type: string;
+				timestamp: number;
+				side: string;
+				price: string;
+				amount: string;
+				total: string;
+				pair_id: number;
+				user_id: number;
+				status: string;
+				left: string;
+				hasNotification: boolean;
+
+				pair: PairWithCurrencies;
+
+				first_currency: Currency;
+				second_currency: Currency;
+				isInstant: boolean;
+			}[];
+		  }
+		> {
 		try {
-			const userRow = await userModel.getUserRow(body.userData.address);
+			const userRow = await userModel.getUserRow(address);
 
 			if (!userRow) throw new Error('Invalid address from token.');
 
-			const orders = (await Order.findAll({
-				where: {
+			const ordersSelectWhereClause: WhereOptions = {
 				user_id: userRow.id,
-				},
+				...(pairId !== undefined ? { pair_id: pairId } : {}),
+				...(status !== undefined
+					? {
+						status:
+								status === 'finished' ? OrderStatus.FINISHED : OrderStatus.ACTIVE,
+					}
+					: {}),
+				...(type !== undefined
+					? { type: type === 'buy' ? OrderType.BUY : OrderType.SELL }
+					: {}),
+				...(date !== undefined
+					? { timestamp: { [Op.between]: [date.from, date.to] } }
+					: {}),
+			};
+
+			const totalItemsCount = await Order.count({
+				where: ordersSelectWhereClause,
+			});
+
+			const ordersRows = (await Order.findAll({
+				where: ordersSelectWhereClause,
 				order: [['timestamp', 'DESC']],
+				limit,
+				offset,
 				include: [
 					{
 						model: Pair,
@@ -356,14 +473,32 @@ class OrdersModel {
 				],
 			})) as OrderWithPairAndCurrencies[];
 
-			const result = orders.map((e) => ({
-				...e.toJSON(),
+			const result = ordersRows.map((e) => ({
+				id: e.id,
+				type: e.type,
+				timestamp: e.timestamp,
+				side: e.side,
+				price: e.price,
+				amount: e.amount,
+				total: e.total,
+				pair_id: e.pair_id,
+				user_id: e.user_id,
+				status: e.status,
+				left: e.left,
+				hasNotification: e.hasNotification,
+
+				pair: e.pair,
+
 				first_currency: e.pair.first_currency,
 				second_currency: e.pair.second_currency,
 				isInstant: dexModel.isBotActive(e.id),
 			}));
 
-			return { success: true, data: result };
+			return {
+				success: true,
+				totalItemsCount,
+				data: result,
+			};
 		} catch (err) {
 			console.log(err);
 			return { success: false, data: 'Internal error' };
@@ -677,6 +812,184 @@ class OrdersModel {
 			return { success: false, data: 'Internal error' };
 		}
 	}
+
+	static GET_USER_ORDERS_ALL_PAIRS_USER_NOT_FOUND = 'No user found';
+	getUserOrdersAllPairs = async (
+		address: string,
+	): Promise<{
+		success: true;
+		data: {
+			id: number;
+			firstCurrency: {
+				id: number;
+				ticker: string;
+			};
+			secondCurrency: {
+				id: number;
+				ticker: string;
+			};
+		}[];
+	}> => {
+		const userRow = await userModel.getUserRow(address);
+
+		if (!userRow) {
+			throw new Error(OrdersModel.GET_USER_ORDERS_ALL_PAIRS_USER_NOT_FOUND);
+		}
+
+		// Select distinct pair IDs for the user's orders, then fetch pairs
+		const distinctPairIdRows = (await Order.findAll({
+			attributes: [[sequelize.fn('DISTINCT', sequelize.col('pair_id')), 'pair_id']],
+			where: { user_id: userRow.id },
+			raw: true,
+		})) as { pair_id: number }[];
+
+		const pairIds = distinctPairIdRows.map((row) => row.pair_id);
+
+		const pairsSelection = (await Pair.findAll({
+			where: { id: pairIds },
+			include: [
+				{ model: Currency, as: 'first_currency' },
+				{ model: Currency, as: 'second_currency' },
+			],
+			attributes: ['id'],
+		})) as PairWithIdAndCurrencies[];
+
+		const pairs = pairsSelection.map((e) => {
+			const firstCurrencyTicker = e.first_currency.name;
+			const secondCurrencyTicker = e.second_currency.name;
+
+			return {
+				id: e.id,
+				firstCurrency: {
+					id: e.first_currency.id,
+					ticker: firstCurrencyTicker,
+				},
+				secondCurrency: {
+					id: e.second_currency.id,
+					ticker: secondCurrencyTicker,
+				},
+			};
+		});
+
+		return {
+			success: true,
+			data: pairs,
+		};
+	};
+
+	static CANCEL_ALL_USER_NOT_FOUND = 'No user found';
+	cancelAll = async (
+		{
+			address,
+			filterInfo: { pairId, type, date },
+		}: {
+			address: string;
+			filterInfo: {
+				pairId?: number;
+				type?: 'buy' | 'sell';
+				date?: {
+					from: number;
+					to: number;
+				};
+			};
+		},
+		{ transaction }: { transaction: SequelizeTransaction },
+	): Promise<{
+		success: true;
+	}> => {
+		const userRow = await userModel.getUserRow(address);
+
+		if (!userRow) {
+			throw new Error(OrdersModel.CANCEL_ALL_USER_NOT_FOUND);
+		}
+
+		const ordersToCancelWhereClause: WhereOptions = {
+			user_id: userRow.id,
+			status: {
+				[Op.ne]: OrderStatus.FINISHED,
+			},
+			...(pairId !== undefined ? { pair_id: pairId } : {}),
+			...(type !== undefined
+				? { type: type === 'buy' ? OrderType.BUY : OrderType.SELL }
+				: {}),
+			...(date !== undefined ? { timestamp: { [Op.between]: [date.from, date.to] } } : {}),
+		};
+
+		const ORDERS_PER_CANCEL_CHUNK = 10_000;
+		let lastOrderTimestamp: number | undefined;
+		let finished = false;
+
+		while (!finished) {
+			const orderRows = await Order.findAll({
+				where: {
+					...ordersToCancelWhereClause,
+					...(lastOrderTimestamp !== undefined
+						? { timestamp: { [Op.gt]: lastOrderTimestamp } }
+						: {}),
+				},
+				order: [['timestamp', 'ASC']],
+				limit: ORDERS_PER_CANCEL_CHUNK,
+			});
+
+			const lastOrderRow = orderRows.at(-1);
+
+			// if there are no more orders to cancel, finish the process
+			if (!lastOrderRow) {
+				finished = true;
+			}
+
+			for (const orderRow of orderRows) {
+				await this.cancelOrderNotifications(orderRow, userRow);
+
+				const eps = new Decimal(1e-8);
+				const leftDecimal = new Decimal(orderRow.left);
+				const amountDecimal = new Decimal(orderRow.amount);
+
+				// if order was partially filled
+				if (leftDecimal.minus(amountDecimal).abs().greaterThan(eps)) {
+					const connectedTransactions = await Transaction.findAll({
+						where: {
+							[Op.or]: [
+								{ buy_order_id: orderRow.id },
+								{ sell_order_id: orderRow.id },
+							],
+							status: 'pending',
+						},
+					});
+
+					for (const tx of connectedTransactions) {
+						await exchangeModel.returnTransactionAmount(tx.id, transaction);
+					}
+
+					await Order.update(
+						{ status: OrderStatus.FINISHED },
+						{
+							where: { id: orderRow.id, user_id: userRow.id },
+							transaction,
+						},
+					);
+				} else {
+					await Order.destroy({
+						where: {
+							id: orderRow.id,
+							user_id: userRow.id,
+						},
+						transaction,
+					});
+				}
+
+				transaction.afterCommit(() => {
+					sendDeleteOrderMessage(io, orderRow.pair_id.toString(), orderRow.id.toString());
+				});
+			}
+
+			if (lastOrderRow) {
+				lastOrderTimestamp = lastOrderRow.timestamp;
+			}
+		}
+
+		return { success: true };
+	};
 }
 
 const ordersModel = new OrdersModel();

src/models/User.ts

@@ -1,4 +1,4 @@
-import { Op } from 'sequelize';
+import { Op, Transaction } from 'sequelize';
 import Offer from '../schemes/Offer';
 import GetUserBody from '../interfaces/bodies/user/GetUserBody';
 import SetFavouriteCurrsBody from '../interfaces/bodies/user/SetFavouriteCurrsBody';
@@ -15,7 +15,7 @@ class UserModel {
 		return selected;
 	}
 
-	async add(userData: UserData) {
+	async add(userData: UserData, { transaction }: { transaction?: Transaction } = {}) {
 		try {
 			const userRow = await this.getUserRow(userData.address);
 			if (userRow) return true;
@@ -27,12 +27,15 @@ class UserModel {
 			if (oldAddressOfCurrentAlias) {
 				await User.update(
 					{ address: userData.address },
-					{ where: { alias: userData.alias } },
+					{ where: { alias: userData.alias }, transaction },
 				);
 				return true;
 			}
 
-			await User.create({ alias: userData.alias, address: userData.address });
+			await User.create(
+				{ alias: userData.alias, address: userData.address },
+				{ transaction },
+			);
 
 			return true;
 		} catch (err) {

src/routes/auth.router.ts

@@ -1,8 +1,16 @@
 import express from 'express';
+
+import middleware from '@/middleware/middleware.js';
+import { requestAuthBodyValidator } from '@/interfaces/bodies/auth/RequestAuthBody.js';
 import authController from '../controllers/auth.controller.js';
 
 const authRouter = express.Router();
 
+authRouter.post(
+	'/auth/request-auth',
+	middleware.expressValidator(requestAuthBodyValidator),
+	authController.requestAuth.bind(authController),
+);
 authRouter.post('/auth', authController.auth);
 
 export default authRouter;

src/routes/dex.router.ts

@@ -1,4 +1,5 @@
 import express from 'express';
+import { getAssetsPriceRatesValidator } from '@/interfaces/bodies/dex/GetAssetsPriceRatesBody.js';
 import dexController from '../controllers/dex.controller.js';
 import middleware from '../middleware/middleware.js';
 
@@ -9,7 +10,11 @@ dexRouter.post('/dex/get-pairs-pages-amount', dexController.getPairsPagesAmount)
 dexRouter.post('/dex/get-pair', dexController.getPair);
 dexRouter.post('/dex/renew-bot', middleware.verifyToken, dexController.registerBot);
 dexRouter.post('/dex/volume-stats', dexController.volumeStats);
-dexRouter.post('/dex/get-assets-price-rates', dexController.getAssetsPriceRates);
+dexRouter.post(
+	'/dex/get-assets-price-rates',
+	middleware.expressValidator(getAssetsPriceRatesValidator),
+	dexController.getAssetsPriceRates,
+);
 dexRouter.post('/dex/find-pair', dexController.findPairID);
 
 export default dexRouter;

src/routes/orders.router.ts

@@ -1,4 +1,9 @@
 import express from 'express';
+
+import { createOrderValidator } from '@/interfaces/bodies/orders/CreateOrderBody.js';
+import { getUserOrdersValidator } from '@/interfaces/bodies/orders/GetUserOrdersBody.js';
+import { getUserOrdersAllPairsValidator } from '@/interfaces/bodies/orders/GetUserOrdersAllPairsBody.js';
+import { cancelAllValidator } from '@/interfaces/bodies/orders/CancelAllBody.js';
 import middleware from '../middleware/middleware.js';
 import ordersController from '../controllers/orders.controller.js';
 
@@ -11,19 +16,39 @@ ordersRouter.use(
 		'/orders/get',
 		'/orders/cancel',
 		'/orders/apply-order',
+		'/orders/get-user-orders-pairs',
+		'/orders/cancel-all',
 	],
 	middleware.verifyToken,
 );
 
-ordersRouter.post('/orders/create', ordersController.createOrder);
+ordersRouter.post(
+	'/orders/create',
+	middleware.expressValidator(createOrderValidator),
+	ordersController.createOrder,
+);
 ordersRouter.post('/orders/get-page', ordersController.getOrdersPage);
 ordersRouter.post('/orders/get-user-page', ordersController.getUserOrdersPage);
-ordersRouter.post('/orders/get', ordersController.getUserOrders);
+ordersRouter.patch(
+	'/orders/get',
+	middleware.expressValidator(getUserOrdersValidator),
+	ordersController.getUserOrders.bind(ordersController),
+);
 ordersRouter.post('/orders/cancel', ordersController.cancelOrder);
 ordersRouter.post('/orders/get-candles', ordersController.getCandles);
 ordersRouter.post('/orders/get-chart-orders', ordersController.getChartOrders);
 ordersRouter.post('/orders/get-pair-stats', ordersController.getPairStats);
 ordersRouter.post('/orders/apply-order', ordersController.applyOrder);
 ordersRouter.post('/orders/get-trades', ordersController.getTrades);
+ordersRouter.patch(
+	'/orders/get-user-orders-pairs',
+	middleware.expressValidator(getUserOrdersAllPairsValidator),
+	ordersController.getUserOrdersAllPairs.bind(ordersController),
+);
+ordersRouter.patch(
+	'/orders/cancel-all',
+	middleware.expressValidator(cancelAllValidator),
+	ordersController.cancelAll.bind(ordersController),
+);
 
 export default ordersRouter;

src/schemes/AuthMessage.ts

@@ -0,0 +1,45 @@
+import sequelize from '@/sequelize';
+import { DataTypes, Model } from 'sequelize';
+
+class AuthMessage extends Model {
+	declare readonly id: number;
+	declare address: string;
+	declare alias: string;
+	declare message: string;
+	declare expires_at: Date;
+
+	declare readonly createdAt: Date;
+	declare readonly updatedAt: Date;
+}
+
+AuthMessage.init(
+	{
+		id: {
+			type: DataTypes.INTEGER,
+			primaryKey: true,
+			autoIncrement: true,
+		},
+		address: {
+			type: DataTypes.STRING,
+			allowNull: false,
+		},
+		alias: {
+			type: DataTypes.STRING,
+			allowNull: false,
+		},
+		message: {
+			type: DataTypes.STRING,
+			allowNull: false,
+		},
+		expires_at: {
+			type: DataTypes.DATE,
+			allowNull: false,
+		},
+	},
+	{
+		sequelize,
+		modelName: 'AuthMessage',
+	},
+);
+
+export default AuthMessage;

src/schemes/Order.ts

@@ -1,6 +1,22 @@
 import { Model, DataTypes } from 'sequelize';
 import sequelize from '../sequelize';
 
+export enum OrderType {
+	// eslint-disable-next-line no-unused-vars
+	BUY = 'buy',
+	// eslint-disable-next-line no-unused-vars
+	SELL = 'sell',
+}
+
+export enum OrderStatus {
+	// eslint-disable-next-line no-unused-vars
+	ACTIVE = 'active',
+	// eslint-disable-next-line no-unused-vars
+	ZERO = 'zero',
+	// eslint-disable-next-line no-unused-vars
+	FINISHED = 'finished',
+}
+
 class Order extends Model {
 	declare readonly id: number;
 
@@ -8,6 +24,7 @@ class Order extends Model {
 
 	declare timestamp: number;
 
+	// Currently not used
 	declare side: string;
 
 	declare price: string;

src/server.ts

@@ -3,6 +3,7 @@ import express from 'express';
 import http from 'http';
 import { Server } from 'socket.io';
 
+import authMessagesCleanService from '@/workers/authMessagesCleanService';
 import authRouter from './routes/auth.router';
 import offersRouter from './routes/offers.router';
 import userRouter from './routes/user.router';
@@ -73,6 +74,7 @@ process.on('unhandledRejection', (reason, promise) => {
 
 	assetsUpdateChecker.run();
 	ordersModerationService.run();
+	authMessagesCleanService.run();
 	exchangeModel.runPairStatsDaemon();
 	statsModel.init();
 
@@ -101,6 +103,8 @@ process.on('unhandledRejection', (reason, promise) => {
 		res.send({ success: true, userData: req.body.userData }),
 	);
 
+	app.use(middleware.resultGlobalErrorHandler);
+
 	server.listen(PORT, () => console.log(`Server is running on port ${PORT}`));
 })();
 

src/workers/authMessagesCleanService.ts

@@ -0,0 +1,41 @@
+import authMessagesModel from '@/models/AuthMessages';
+
+const CLEAN_INTERVAL = 60 * 60 * 1000; // 1 hour
+
+class AuthMessagesCleanService {
+	run = async () => {
+		console.log(
+			`Auth messages clean service is running. Cleaning interval: ${CLEAN_INTERVAL / 1000} sec.`,
+		);
+
+		async function clean() {
+			console.log(`[${new Date()}] Cleaning auth messages...`);
+
+			await authMessagesModel.deleteAllExpired({ now: new Date() });
+
+			console.log(`[${new Date()}] Auth messages cleaned.`);
+		}
+
+		// eslint-disable-next-line no-constant-condition
+		while (true) {
+			try {
+				await clean();
+			} catch (error) {
+				console.log(
+					`[${new Date()}] Error while cleaning auth messages. Continuing on next iteration. Error:`,
+				);
+				console.error(error);
+			}
+
+			console.log(
+				`[${new Date()}] Auth messages cleaned. Next cleaning in ${CLEAN_INTERVAL / 1000} sec.`,
+			);
+
+			await new Promise((resolve) => setTimeout(resolve, CLEAN_INTERVAL));
+		}
+	};
+}
+
+const authMessagesCleanService = new AuthMessagesCleanService();
+
+export default authMessagesCleanService;