Added README.md

The server only allows localhost to access the /mine and /addInvoice endpoints.
The P2PServer now relays the sent message to all its peers (except the one that sent it).

Author: aryan-programmer

Diff for: BlockChain/BlockChain.js

@@ -1,4 +1,3 @@
-import isEqual from "lodash/isEqual";
 import {freezeClass} from "../freeze";
 import Block, {Data} from "./Block";
 
@@ -14,7 +13,7 @@ export default class BlockChain {
 		const chainLen = chain.length;
 		if (chainLen < 2) return false;
 
-		if (!isEqual(chain[0], Block.genesis())) return false;
+		if (JSON.stringify(chain[0]) !== JSON.stringify(Block.genesis())) return false;
 
 		for (let i = 1; i < chainLen; i++) {
 			const lastBlock = chain[i - 1];

Diff for: BlockChain/BlockChain.js.map

@@ -0,0 +1,49 @@
+# blockchain-based-invoice-management-system
+
+A blockchain based invoice management system for vendors to track all their customers' invoices.
+
+This project is the CLI API of the “blockchain-based-invoice-management-system”.
+
+This application is to be used by manufacturers and vendors so as to keep a log of all their customers’ invoices.
+Any shopkeeper can add an invoice, which will be signed by the shopkeeper’s private key, so as to prevent tampering by other shopkeepers. This invoice will be broadcasted to all the shopkeeper’s peers. 
+Any vendor can mine the set of invoices in the pool of invoices. This will add the set of invoices to the block chain thereby confirming the invoices in the pool.
+
+A vendor will only have to input the invoice details like the invoice number, the purchaser’s details and the product’s details. 
+The purchase’s details are phone number, name, and whether or not the purchaser is an another vendor. 
+The product details only need to be the name, quantity, cost, and tax percentage. 
+An individual product’s tax price and total cost will be calculated by the application. The invoice’s grand total cost will also be automatically calculated.
+
+## Getting started
+
+First run:
+
+```
+yarn install
+```
+
+To install all the dependencies
+Then run:
+
+```
+tsc
+```
+
+To convert all the TS file to JS files.
+
+### Generating keys
+
+```
+yarn app gen-keys --public-key-file-path <public-key-file=sign-public-key.pem> --private-key-file-path <private-key-file=sign-private-key.pem>
+```
+
+And then enter the password in the prompt shown.
+Or input the password with `--password <password>`.
+
+### Starting the server API
+
+```
+yarn app p2p --port <server-api-port> --p2p-port <p2p-socket-port> --peers ws:\\<peer-address>:<p2p-socket-port>[,ws:\\<peer-address>:<p2p-socket-port>...] --public-key-file-path <public-key-file=sign-public-key.pem> --private-key-file-path <private-key-file=sign-private-key.pem>
+```
+
+And then enter the password to decrypt the private key in the prompt then shown.
+Or input the password with `--password <password>`.

Diff for: BlockChain/BlockChain.ts

@@ -1,8 +1,8 @@
 import crypto from "crypto";
 import cloneDeep from "lodash/cloneDeep";
-import {Inv, RecInv} from "./Inv";
 import {freezeClass} from "../freeze";
 import {deepFreeze, DeepReadonly, DeepWriteable} from "../utils";
+import {Inv, RecInv} from "./Inv";
 import InvalidPhoneNumberError from "./InvalidPhoneNumberError";
 import Wallet from "./Wallet";
 
@@ -26,7 +26,7 @@ export default class Invoice {
 			this.publicKey = invoice_.publicKey;
 		} else {
 			const a_ = a as RecInv;
-			if(a_.purchaser.phoneNumber.match(/^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/) == null){
+			if (a_.purchaser.phoneNumber.match(/^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/) == null) {
 				throw new InvalidPhoneNumberError(`Invalid phone number: ${a_.purchaser.phoneNumber}`);
 			}
 			const invoice_ = cloneDeep(a) as DeepWriteable<Inv>;
@@ -59,7 +59,7 @@ export default class Invoice {
 	}
 
 	static verifyInv (invoice: Inv) {
-		if(invoice.purchaser.phoneNumber.match(/^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/) == null){
+		if (invoice.purchaser.phoneNumber.match(/^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$/) == null) {
 			return false;
 		}
 		let totalCost = 0;

Diff for: README.md

@@ -52,7 +52,7 @@ describe("InvoicePool", function () {
 		describe("And adding it again", function () {
 			it('should do nothing', function () {
 				const oldPool = cloneDeep(pool);
-				expect(pool.addInvoice(invoice)).toBe(invoice);
+				pool.addInvoice(invoice)
 				expect(oldPool).toEqual(pool);
 			});
 		})

Diff for: Wallet/Invoice.js.map

@@ -5,13 +5,14 @@ import Invoice from "./Invoice";
 export default class InvoicePool {
 	invoices: Invoice[] = [];
 
-	addInvoice (invoice: Invoice): Invoice {
+	addInvoice (invoice: Invoice): boolean {
 		if (this.invoices.find(
 			value => value.invoice.invoiceNumber === invoice.invoice.invoiceNumber
 		) == null && Invoice.verify(invoice)) {
 			this.invoices.push(invoice);
+			return true;
 		}
-		return invoice;
+		return false;
 	}
 
 	getValidInvoices () {

Diff for: Wallet/Invoice.ts

@@ -1,5 +1,5 @@
 import crypto from "crypto";
-import {RecInv, Invoice, InvoicePool} from ".";
+import {Invoice, InvoicePool, RecInv} from ".";
 import {freezeClass} from "../freeze";
 
 @freezeClass
@@ -23,6 +23,8 @@ export default class Wallet {
 	}
 
 	addInvoiceToPool (pool: InvoicePool, invoice: RecInv) {
-		return pool.addInvoice(new Invoice(invoice, this));
+		const invoice_ = new Invoice(invoice, this);
+		pool.addInvoice(invoice_);
+		return invoice_;
 	}
 }