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Live status of transaction

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This commit is contained in:
Nicolas Klier
2020-12-27 23:27:35 +01:00
parent 8168674516
commit 7f8ae69e2e
12 changed files with 791 additions and 127 deletions
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11
Socket Events.md Normal file
View File

@@ -0,0 +1,11 @@
# Socket events
## Invoice status
### Requests
* `subscribe` - Subscribe to a invoices progress. Returns `true` if successful.
* `selector` - Your selector
### Events
* `status` - Status changed (see PaymentStatus enum)
* `confirmationUpdate` - When there is a new confirmation on the transaction
* `count` - Count of confirmations

7
config.ts
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@@ -14,6 +14,10 @@ export const config: IConfig = {
http: { http: {
port: 2009, port: 2009,
host: "0.0.0.0" host: "0.0.0.0"
},
transcations: {
// If a payment has been made and its value is this amount less, it would be still accepted.
acceptMargin: 0.00000001
} }
} }
/** /**
@@ -33,5 +37,8 @@ export interface IConfig {
http: { http: {
port: number, port: number,
host: string host: string
},
transcations: {
acceptMargin: number
} }
} }

533
package-lock.json generated
View File

@@ -1,5 +1,5 @@
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"ms": "2.0.0"
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"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
"integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
}
}
}
}
}, },
"socket.io-parser": { "socket.io-parser": {
"version": "4.0.2", "version": "3.4.1",
"resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.0.2.tgz", "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
"integrity": "sha512-Bs3IYHDivwf+bAAuW/8xwJgIiBNtlvnjYRc4PbXgniLmcP1BrakBoq/QhO24rgtgW7VZ7uAaswRGxutUnlAK7g==", "integrity": "sha512-11hMgzL+WCLWf1uFtHSNvliI++tcRUWdoeYuwIl+Axvwy9z2gQM+7nJyN3STj1tLj5JyIUH8/gpDGxzAlDdi0A==",
"requires": { "requires": {
"@types/component-emitter": "^1.2.10", "component-emitter": "1.2.1",
"component-emitter": "~1.3.0", "debug": "~4.1.0",
"debug": "~4.1.0" "isarray": "2.0.1"
}, },
"dependencies": { "dependencies": {
"debug": { "debug": {
@@ -1662,6 +2069,11 @@
"ms": "^2.1.1" "ms": "^2.1.1"
} }
}, },
"isarray": {
"version": "2.0.1",
"resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
"integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
},
"ms": { "ms": {
"version": "2.1.3", "version": "2.1.3",
"resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz", "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -1761,6 +2173,11 @@
"resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz", "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
"integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=" "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
}, },
"to-array": {
"version": "0.1.4",
"resolved": "https://registry.npmjs.org/to-array/-/to-array-0.1.4.tgz",
"integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA="
},
"toidentifier": { "toidentifier": {
"version": "1.0.0", "version": "1.0.0",
"resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz", "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
@@ -1919,11 +2336,21 @@
"resolved": "https://registry.npmjs.org/ws/-/ws-7.4.1.tgz", "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.1.tgz",
"integrity": "sha512-pTsP8UAfhy3sk1lSk/O/s4tjD0CRwvMnzvwr4OKGX7ZvqZtUyx4KIJB5JWbkykPoc55tixMGgTNoh3k4FkNGFQ==" "integrity": "sha512-pTsP8UAfhy3sk1lSk/O/s4tjD0CRwvMnzvwr4OKGX7ZvqZtUyx4KIJB5JWbkykPoc55tixMGgTNoh3k4FkNGFQ=="
}, },
"xmlhttprequest-ssl": {
"version": "1.5.5",
"resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
"integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
},
"yallist": { "yallist": {
"version": "3.1.1", "version": "3.1.1",
"resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz", "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
"integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==" "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
}, },
"yeast": {
"version": "0.1.2",
"resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
"integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk="
},
"yn": { "yn": {
"version": "3.1.1", "version": "3.1.1",
"resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz", "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",

5
package.json
View File

@@ -1,5 +1,5 @@
{ {
"name": "uplata", "name": "librepay",
"version": "1.0.0", "version": "1.0.0",
"description": "Next-gen payment processor for cryptocurrencies.", "description": "Next-gen payment processor for cryptocurrencies.",
"main": "index.js", "main": "index.js",
@@ -26,11 +26,12 @@
"cors": "^2.8.5", "cors": "^2.8.5",
"dotenv": "^8.2.0", "dotenv": "^8.2.0",
"express": "^4.17.1", "express": "^4.17.1",
"got": "^11.8.1",
"jayson": "^3.4.4", "jayson": "^3.4.4",
"jsonwebtoken": "^8.5.1", "jsonwebtoken": "^8.5.1",
"mongoose": "^5.11.8", "mongoose": "^5.11.8",
"mysql": "^2.18.1", "mysql": "^2.18.1",
"socket.io": "^3.0.4", "socket.io": "^2.3.0",
"ts-node": "^9.1.1", "ts-node": "^9.1.1",
"typescript": "^4.1.3", "typescript": "^4.1.3",
"winston": "^3.3.3", "winston": "^3.3.3",

15
src/app.ts
View File

@@ -5,6 +5,8 @@ import * as express from 'express';
import * as rpc from 'jayson'; import * as rpc from 'jayson';
import * as mongoose from 'mongoose'; import * as mongoose from 'mongoose';
import * as winston from 'winston'; import * as winston from 'winston';
import * as socketio from 'socket.io';
import { Server } from 'http';
import { config } from '../config'; import { config } from '../config';
import { hashPassword, randomPepper, randomString } from './helper/crypto'; import { hashPassword, randomPepper, randomString } from './helper/crypto';
@@ -12,6 +14,7 @@ import { InvoiceScheduler } from './helper/invoiceScheduler';
import { User } from './models/user/user.model'; import { User } from './models/user/user.model';
import { invoiceRouter } from './routes/invoice'; import { invoiceRouter } from './routes/invoice';
import { userRouter } from './routes/user'; import { userRouter } from './routes/user';
import { SocketManager } from './helper/socketio';
// Load .env // Load .env
dconfig({ debug: true, encoding: 'UTF-8' }); dconfig({ debug: true, encoding: 'UTF-8' });
@@ -23,6 +26,7 @@ export const INVOICE_SECRET = process.env.INVOICE_SECRET || "";
export let rpcClient: rpc.HttpClient | undefined = undefined; export let rpcClient: rpc.HttpClient | undefined = undefined;
export let invoiceScheduler: InvoiceScheduler | undefined = undefined; export let invoiceScheduler: InvoiceScheduler | undefined = undefined;
export let socketManager: SocketManager | undefined = undefined;
export let logger: winston.Logger; export let logger: winston.Logger;
@@ -105,15 +109,22 @@ async function run() {
invoiceScheduler = new InvoiceScheduler(); invoiceScheduler = new InvoiceScheduler();
const app = express(); const app = express();
const http = new Server(app);
// Socket.io
const io = new socketio(http);
socketManager = new SocketManager(io);
app.use(express.json()); app.use(express.json());
app.use(cors()); app.use(cors());
app.use(bodyParser.json({ limit: '2kb' })); app.use(bodyParser.json({ limit: '2kb' }));
app.get('/', (req, res) => res.status(200).send('OK'));
app.use('/invoice', invoiceRouter); app.use('/invoice', invoiceRouter);
app.use('/user', userRouter); app.use('/user', userRouter);
app.listen(config.http.port, config.http.host, () => { app.get('/', (req, res) => res.status(200).send('OK'));
http.listen(config.http.port, config.http.host, () => {
logger.info(`HTTP server started on port ${config.http.host}:${config.http.port}`); logger.info(`HTTP server started on port ${config.http.host}:${config.http.port}`);
}); });

107
src/controllers/invoice.ts
View File

@@ -1,9 +1,12 @@
import { Request, Response } from "express"; import { Request, Response } from 'express';
import { invoiceScheduler, INVOICE_SECRET } from "../app"; import got from 'got';
import { CryptoUnits, FiatUnits } from "../helper/types";
import { ICart, IInvoice } from "../models/invoice/invoice.interface"; import { invoiceScheduler, INVOICE_SECRET, rpcClient } from '../app';
import { Invoice } from "../models/invoice/invoice.model"; import { randomString } from '../helper/crypto';
import { rpcClient } from '../app'; import { CryptoUnits, FiatUnits, findCryptoBySymbol, PaymentStatus } from '../helper/types';
import { ICart, IInvoice, IPaymentMethod } from '../models/invoice/invoice.interface';
import { Invoice } from '../models/invoice/invoice.model';
import { calculateCart } from '../models/invoice/invoice.schema';
// POST /invoice/?sercet=XYZ // POST /invoice/?sercet=XYZ
export async function createInvoice(req: Request, res: Response) { export async function createInvoice(req: Request, res: Response) {
@@ -20,14 +23,14 @@ export async function createInvoice(req: Request, res: Response) {
} }
} }
const paymentMethods: CryptoUnits[] = req.body.methods; const paymentMethodsRaw: string[] = req.body.methods;
const successUrl: string = req.body.successUrl; const successUrl: string = req.body.successUrl;
const cancelUrl: string = req.body.cancelUrl; const cancelUrl: string = req.body.cancelUrl;
const cart: ICart[] = req.body.cart; const cart: ICart[] = req.body.cart;
const currency: FiatUnits = req.body.currency; let currency: FiatUnits = req.body.currency;
const totalPrice: number = req.body.totalPrice; let totalPrice: number = req.body.totalPrice;
if (paymentMethods === undefined) { if (paymentMethodsRaw === undefined) {
res.status(400).send({ message: '"paymentMethods" are not provided!' }); res.status(400).send({ message: '"paymentMethods" are not provided!' });
return; return;
} }
@@ -45,19 +48,52 @@ export async function createInvoice(req: Request, res: Response) {
if (currency === undefined) { if (currency === undefined) {
res.status(400).send({ message: '"currency" is not provided!' }); res.status(400).send({ message: '"currency" is not provided!' });
return; return;
} else {
if (Object.keys(FiatUnits).indexOf(currency.toUpperCase()) === -1) {
res.status(400).send({ message: '"currency" can only be "eur" and "usd"' });
return;
} else {
currency = FiatUnits[currency.toUpperCase()];
}
} }
/*if (cart === undefined && totalPrice === undefined) { if (cart === undefined && totalPrice === undefined) {
res.status(400).send({ message: 'Either "cart" or "totalPrice" has to be defined.' }); res.status(400).send({ message: 'Either "cart" or "totalPrice" has to be defined.' });
return; return;
}*/ }
rpcClient.request('getnewaddress', ['', 'bech32'], async (err, response) => { rpcClient.request('getnewaddress', ['', 'bech32'], async (err, response) => {
if (err) throw err; if (err) throw err;
//console.log(response.result);
// Get price
// Convert coin symbol to full text in order to query Coin Gecko. eg.: ['btc', 'xmr'] => ['bitcoin', 'monero']
let cgFormat = [];
paymentMethodsRaw.forEach(coin => {
const crypto = findCryptoBySymbol(coin);
if (crypto !== undefined) {
cgFormat.push(crypto.toLowerCase());
}
});
const request = await got.get(`https://api.coingecko.com/api/v3/simple/price?ids=${cgFormat.join(',')}&vs_currencies=${currency.toLowerCase()}`, {
responseType: 'json'
});
// Calulate total price, if cart is provided
if (cart !== undefined && totalPrice === undefined) {
totalPrice = calculateCart(cart);
}
let paymentMethods: IPaymentMethod[] = [];
Object.keys(request.body).forEach(coin => {
paymentMethods.push({ method: CryptoUnits[coin.toUpperCase()], amount: totalPrice / Number(request.body[coin][currency.toLowerCase()]) });
});
Invoice.create({ Invoice.create({
paymentMethods, selector: randomString(128),
paymentMethods: paymentMethods,
successUrl, successUrl,
cancelUrl, cancelUrl,
cart, cart,
@@ -72,26 +108,37 @@ export async function createInvoice(req: Request, res: Response) {
} }
invoiceScheduler.addInvoice(invoice); invoiceScheduler.addInvoice(invoice);
res.status(200).send({ id: invoice.id }); res.status(200).send({ id: invoice.selector });
}); });
}); });
} }
// GET /invoice/ // GET /invoice/
// GET /invoice/:id // GET /invoice/:selector
export async function getInvoice(req: Request, res: Response) { export async function getInvoice(req: Request, res: Response) {
const invoiceId = req.params.id; const selector = req.params.selector;
// If an id is provided // If an id is provided
if (invoiceId !== undefined) { if (selector !== undefined) {
const invoice: any = await Invoice.findById(invoiceId); const invoice: IInvoice = await Invoice.findOne({ selector: selector });
if (invoice === null) { if (invoice === null) {
res.status(404).send(); res.status(404).send();
return; return;
} }
res.status(200).send(invoice); if(invoice.status === PaymentStatus.UNCONFIRMED || invoice.status === PaymentStatus.DONE) {
rpcClient.request('gettransaction', [invoice.transcationHashes[0]], (err, message) => {
let invoiceClone: any = invoice;
console.log(message.result.confirmations);
invoiceClone['confirmation'] = message.result.confirmations;
res.status(200).send(invoiceClone);
});
} else {
res.status(200).send(invoice);
}
return; return;
} }
@@ -117,4 +164,22 @@ export async function getInvoice(req: Request, res: Response) {
.sort({ createdAt: sort }); .sort({ createdAt: sort });
res.status(200).send(invoices); res.status(200).send(invoices);
}
// DELETE /invoice/:selector
export async function cancelPaymnet(req: Request, res: Response) {
const selector = req.params.selector;
// If an id is provided
if (selector !== undefined) {
const invoice = await Invoice.findOne({ selector: selector });
if (invoice === null) {
res.status(404).send();
return;
}
invoice.status = PaymentStatus.CANCELLED;
await invoice.save();
return;
}
} }

81
src/helper/invoiceScheduler.ts
View File

@@ -1,18 +1,21 @@
import { IInvoice } from "../models/invoice/invoice.interface"; import { IInvoice } from "../models/invoice/invoice.interface";
import { Subscriber } from 'zeromq'; import { Subscriber } from 'zeromq';
import { logger, rpcClient } from "../app"; import { logger, rpcClient, socketManager } from "../app";
import { invoiceRouter } from "../routes/invoice"; import { invoiceRouter } from "../routes/invoice";
import { Invoice } from "../models/invoice/invoice.model"; import { Invoice } from "../models/invoice/invoice.model";
import { PaymentStatus } from "./types"; import { CryptoUnits, PaymentStatus } from "./types";
import { config } from "../../config";
export class InvoiceScheduler { export class InvoiceScheduler {
private pendingInvoices: IInvoice[]; private pendingInvoices: IInvoice[];
private unconfirmedTranscations: IInvoice[]; private unconfirmedTranscations: IInvoice[];
private knownConfirmations: Map<string, number>; // Invoice id / confirmation cound
private sock: Subscriber; private sock: Subscriber;
constructor() { constructor() {
this.unconfirmedTranscations = []; this.unconfirmedTranscations = [];
this.pendingInvoices = []; this.pendingInvoices = [];
this.knownConfirmations = new Map<string, number>();
// Get all pending transcations // Get all pending transcations
Invoice.find({ status: PaymentStatus.PENDING }).then(invoices => { Invoice.find({ status: PaymentStatus.PENDING }).then(invoices => {
@@ -44,7 +47,7 @@ export class InvoiceScheduler {
logger.info('Now listing for incoming transaction to any invoices ...'); logger.info('Now listing for incoming transaction to any invoices ...');
for await (const [topic, msg] of this.sock) { for await (const [topic, msg] of this.sock) {
const rawtx = msg.toString('hex'); const rawtx = msg.toString('hex');
logger.debug(`New tx: ${rawtx}`); //logger.debug(`New tx: ${rawtx}`);
rpcClient.request('decoderawtransaction', [rawtx], (err, decoded) => { rpcClient.request('decoderawtransaction', [rawtx], (err, decoded) => {
if (err) { if (err) {
logger.error(`Error while decoding raw tx: ${err.message}`); logger.error(`Error while decoding raw tx: ${err.message}`);
@@ -54,19 +57,29 @@ export class InvoiceScheduler {
decoded.result.vout.forEach(output => { decoded.result.vout.forEach(output => {
// Loop over each output and check if the address of one matches the one of an invoice. // Loop over each output and check if the address of one matches the one of an invoice.
this.pendingInvoices.forEach(invoice => { this.pendingInvoices.forEach(invoice => {
// We found our transaction
if (output.scriptPubKey.addresses === undefined) return; // Sometimes (weird) transaction don't have any addresses if (output.scriptPubKey.addresses === undefined) return; // Sometimes (weird) transaction don't have any addresses
// We found our transaction (https://developer.bitcoin.org/reference/rpc/decoderawtransaction.html)
if (output.scriptPubKey.addresses.indexOf(invoice.receiveAddress) !== -1) { if (output.scriptPubKey.addresses.indexOf(invoice.receiveAddress) !== -1) {
invoice.paid += output.value;
logger.info(`Transcation for invoice ${invoice.id} received! (${decoded.result.hash})`); logger.info(`Transcation for invoice ${invoice.id} received! (${decoded.result.hash})`);
// Change state in database // Change state in database
invoice.status = PaymentStatus.UNCONFIRMED; const price = invoice.paymentMethods.find((item) => { return item.method === CryptoUnits.BITCOIN }).amount;
invoice.transcationHash = decoded.result.txid; if (invoice.paid < price - config.transcations.acceptMargin) {
invoice.save(); const left = price - output.value;
invoice.status = PaymentStatus.PARTIALLY;
// Push to array & remove from pending invoice.save();
this.unconfirmedTranscations.push(invoice); logger.info(`Transcation for invoice ${invoice.id} received but there are still ${left} BTC missing (${decoded.result.hash})`);
this.pendingInvoices.splice(this.pendingInvoices.indexOf(invoice), 1); } else {
invoice.status = PaymentStatus.UNCONFIRMED;
invoice.transcationHashes.push(decoded.result.txid);
invoice.save();
// Push to array & remove from pending
this.unconfirmedTranscations.push(invoice);
this.pendingInvoices.splice(this.pendingInvoices.indexOf(invoice), 1);
}
} }
}) })
}); });
@@ -81,22 +94,40 @@ export class InvoiceScheduler {
private watchConfirmations() { private watchConfirmations() {
setInterval(() => { setInterval(() => {
this.unconfirmedTranscations.forEach(invoice => { this.unconfirmedTranscations.forEach(invoice => {
rpcClient.request('gettransaction', [invoice.transcationHash], (err, message) => { if (invoice.transcationHashes.length === 0) return;
if (err) { let trustworthy = true; // Will be true if all transactions are above threshold.
logger.error(`Error while fetching confirmation state of ${invoice.transcationHash}: ${err.message}`);
return;
}
if (Number(message.result.confirmations) > 2) { for (let i = 0; i < invoice.transcationHashes.length; i++) {
logger.info(`Transaction (${invoice.transcationHash}) has reached more then 2 confirmations and can now be trusted!`); const transcation = invoice.transcationHashes[i];
invoice.status = PaymentStatus.DONE;
invoice.save(); // This will trigger a post save hook that will notify the user. rpcClient.request('gettransaction', [transcation], (err, message) => {
if (err) {
logger.error(`Error while fetching confirmation state of ${transcation}: ${err.message}`);
trustworthy = false;
this.unconfirmedTranscations.splice(this.unconfirmedTranscations.indexOf(invoice), 1); return;
} else { }
logger.debug(`Transcation (${invoice.transcationHash}) has not reached his threshold yet.`);
} if (this.knownConfirmations.get(invoice.id) != message.result.confirmations) {
}); this.knownConfirmations.set(invoice.id, message.result.confirmations);
socketManager.getSocketByInvoice(invoice).emit('confirmationUpdate', { count: Number(message.result.confirmations) });
}
if (Number(message.result.confirmations) > 0) {
logger.info(`Transaction (${transcation}) has reached more then 2 confirmations and can now be trusted!`);
this.unconfirmedTranscations.splice(this.unconfirmedTranscations.indexOf(invoice), 1);
} else {
trustworthy = false;
logger.debug(`Transcation (${transcation}) has not reached his threshold yet.`);
}
});
}
if (trustworthy) {
invoice.status = PaymentStatus.DONE;
invoice.save(); // This will trigger a post save hook that will notify the user.
}
}); });
}, 2_000); }, 2_000);
} }

60
src/helper/socketio.ts Normal file
View File

@@ -0,0 +1,60 @@
import { Server, Socket } from "socket.io";
import { logger } from "../app";
import { IInvoice } from "../models/invoice/invoice.interface";
import { Invoice } from "../models/invoice/invoice.model";
import { PaymentStatus } from "./types";
export class SocketManager {
io: Server;
private socketInvoice: Map<string, string>; // Socket ID / _id
private idSocket: Map<string, Socket>; // Socket ID / Socket
private invoiceSocket: Map<string, Socket>; // _id / Socket
constructor(io: Server) {
this.io = io;
this.socketInvoice = new Map<string, string>();
this.idSocket = new Map<string, Socket>();
this.invoiceSocket = new Map<string, Socket>();
this.listen();
}
listen() {
console.log("Listen");
this.io.on('connection', (socket: Socket) => {
this.idSocket.set(socket.id, socket);
// The frontend sends his selector, then pick _id and put it in `socketInvoice` map.
// Return `true` if successful and `false` if not.
socket.on('subscribe', async data => {
if (data.selector !== undefined) {
const invoice = await Invoice.findOne({ selector: data.selector });
if (invoice === null) {
socket.emit('subscribe', false);
return;
}
logger.info(`Socket ${socket.id} has subscribed to invoice ${invoice.id} (${PaymentStatus[invoice.status]})`);
this.socketInvoice.set(socket.id, invoice.id);
this.invoiceSocket.set(invoice.id, socket);
socket.emit('subscribe', true);
}
});
});
}
getSocketById(id: string) {
return this.idSocket.get(id);
}
async getInvoiceBySocket(socketId: string) {
const invoiceId = this.socketInvoice.get(socketId);
return await Invoice.findById(invoiceId);
}
getSocketByInvoice(invoice: IInvoice) {
return this.invoiceSocket.get(invoice.id);
}
}

23
src/helper/types.ts
View File

@@ -7,9 +7,16 @@ export enum CryptoUnits {
MONERO = 'XMR' MONERO = 'XMR'
} }
export function findCryptoBySymbol(symbol: string): string | null {
for (let coin in CryptoUnits) {
if (CryptoUnits[coin] === symbol.toUpperCase()) return coin;
}
return null;
}
export enum FiatUnits { export enum FiatUnits {
USD = 'USD', USD = 'USD',
EUR = 'EURO' EUR = 'EUR'
} }
export enum PaymentStatus { export enum PaymentStatus {
@@ -18,13 +25,23 @@ export enum PaymentStatus {
*/ */
PENDING = 0, PENDING = 0,
/**
* The payment has been paid, but not completly.
*/
PARTIALLY = 1,
/** /**
* The payment has been made but it's not yet confirmed. * The payment has been made but it's not yet confirmed.
*/ */
UNCONFIRMED = 1, UNCONFIRMED = 2,
/** /**
* The payment is completed and the crypto is now available. * The payment is completed and the crypto is now available.
*/ */
DONE = 2 DONE = 3,
/**
* The payment has been cancelled by the user.
*/
CANCELLED = 4
} }

17
src/models/invoice/invoice.interface.ts
View File

@@ -8,19 +8,30 @@ export interface ICart {
quantity: number; quantity: number;
} }
export interface IPaymentMethod {
method: CryptoUnits;
amount: number
}
export interface IInvoice extends Document { export interface IInvoice extends Document {
selector: string;
// Available payment methods // Available payment methods
// [btc, xmr, eth, doge] // [{ method: 'btc', amount: 0.0000105 }]
paymentMethods: CryptoUnits[]; paymentMethods: IPaymentMethod[];
// 1Kss3e9iPB9vTgWJJZ1SZNkkFKcFJXPz9t // 1Kss3e9iPB9vTgWJJZ1SZNkkFKcFJXPz9t
receiveAddress: string; receiveAddress: string;
paidWith?: CryptoUnits; paidWith?: CryptoUnits;
// Already paid amount, in case that not the entire amount was paid with once.
// 0.000013
paid?: number;
// Is set when invoice got paid // Is set when invoice got paid
// 3b38c3a215d4e7981e1516b2dcbf76fca58911274d5d55b3d615274d6e10f2c1 // 3b38c3a215d4e7981e1516b2dcbf76fca58911274d5d55b3d615274d6e10f2c1
transcationHash?: string; transcationHashes?: string[];
cart?: ICart[]; cart?: ICart[];
totalPrice?: number; totalPrice?: number;

57
src/models/invoice/invoice.schema.ts
View File

@@ -1,6 +1,7 @@
import { NativeError, Schema, SchemaTypes } from 'mongoose'; import { Schema } from 'mongoose';
import { socketManager } from '../../app';
import { CryptoUnits, FiatUnits, PaymentStatus } from '../../helper/types'; import { CryptoUnits, FiatUnits, PaymentStatus } from '../../helper/types';
import { IInvoice } from './invoice.interface'; import { ICart, IInvoice } from './invoice.interface';
const urlRegex = /((([A-Za-z]{3,9}:(?:\/\/)?)(?:[\-;:&=\+\$,\w]+@)?[A-Za-z0-9\.\-]+|(?:www\.|[\-;:&=\+\$,\w]+@)[A-Za-z0-9\.\-]+)((?:\/[\+~%\/\.\w\-_]*)?\??(?:[\-\+=&;%@\.\w_]*)#?(?:[\.\!\/\\\w]*))?)/ const urlRegex = /((([A-Za-z]{3,9}:(?:\/\/)?)(?:[\-;:&=\+\$,\w]+@)?[A-Za-z0-9\.\-]+|(?:www\.|[\-;:&=\+\$,\w]+@)[A-Za-z0-9\.\-]+)((?:\/[\+~%\/\.\w\-_]*)?\??(?:[\-\+=&;%@\.\w_]*)#?(?:[\.\!\/\\\w]*))?)/
@@ -9,16 +10,23 @@ const schemaCart = new Schema({
name: { type: String, trim: true, required: true }, name: { type: String, trim: true, required: true },
image: { type: String, match: urlRegex, required: true }, image: { type: String, match: urlRegex, required: true },
quantity: { type: Number, default: 1 } quantity: { type: Number, default: 1 }
}) }, { _id: false });
const schemaPaymentMethods = new Schema({
method: { type: String, enum: Object.values(CryptoUnits), required: true },
amount: { type: Number, required: false }
}, { _id: false });
const schemaInvoice = new Schema({ const schemaInvoice = new Schema({
paymentMethods: [{ type: String, enum: Object.values(CryptoUnits), default: [CryptoUnits.BITCOIN], required: true }], selector: { type: String, length: 128, required: true },
paymentMethods: [{ type: schemaPaymentMethods, required: true }],
receiveAddress: { type: String, required: true }, receiveAddress: { type: String, required: true },
paidWith: { type: String, enum: CryptoUnits }, paidWith: { type: String, enum: CryptoUnits },
transcationHash: { type: String, required: false }, paid: { type: Number, default: 0 },
transcationHashes: [{ type: String, required: false }],
cart: [{ type: schemaCart, required: false }], cart: [{ type: schemaCart, required: false }],
totalPrice: { type: Number, required: false }, totalPrice: { type: Number, required: false },
currency: { type: String, enum: Object.values(FiatUnits), required: false }, currency: { type: String, enum: Object.values(FiatUnits), required: true },
dueBy: { type: Number, required: true }, dueBy: { type: Number, required: true },
status: { type: Number, enum: Object.values(PaymentStatus), default: PaymentStatus.PENDING }, status: { type: Number, enum: Object.values(PaymentStatus), default: PaymentStatus.PENDING },
email: { type: String, required: false }, email: { type: String, required: false },
@@ -31,8 +39,15 @@ const schemaInvoice = new Schema({
versionKey: false versionKey: false
}); });
schemaInvoice.pre('validate', function(next) {
let self = this as IInvoice;
self.currency = FiatUnits[self.currency];
next();
});
// Validate values // Validate values
schemaInvoice.post('validate', function (res, next) { schemaInvoice.post('validate', function (doc, next) {
let self = this as IInvoice; let self = this as IInvoice;
// If cart is undefined and price too, error. // If cart is undefined and price too, error.
@@ -40,19 +55,27 @@ schemaInvoice.post('validate', function (res, next) {
next(new Error('Either cart or price has to be defined!')); next(new Error('Either cart or price has to be defined!'));
return; return;
} }
next();
});
// If cart is provided, calculate price. schemaInvoice.post('save', function(doc, next) {
if (self.cart !== undefined && self.totalPrice === undefined) { let self = this as IInvoice;
let totalPrice = 0;
for (let i = 0; i < self.cart.length; i++) {
const item = self.cart[i];
totalPrice += item.price * item.quantity;
}
self.set({ totalPrice }); if (socketManager.getSocketByInvoice(self) === undefined) return;
} socketManager.getSocketByInvoice(self).emit('status', self.status);
next(); next();
}) })
export function calculateCart(cart: ICart[]): number {
let totalPrice = 0;
for (let i = 0; i < cart.length; i++) {
const item = cart[i];
totalPrice += item.price * item.quantity;
}
return totalPrice;
}
export { schemaInvoice } export { schemaInvoice }

2
src/routes/invoice.ts
View File

@@ -4,7 +4,7 @@ import { MW_User } from "../controllers/user";
const invoiceRouter = Router() const invoiceRouter = Router()
invoiceRouter.get('/:id', getInvoice); invoiceRouter.get('/:selector', getInvoice);
invoiceRouter.get('/', MW_User, getInvoice); invoiceRouter.get('/', MW_User, getInvoice);
invoiceRouter.post('/', MW_User, createInvoice); invoiceRouter.post('/', MW_User, createInvoice);