├── Final
├── Backend
│ ├── backend.js
│ ├── database.js
│ ├── ethpricedb.json
│ ├── getprices.js
│ ├── interface.js
│ ├── n2usdabi.json
│ ├── n2usdpricedb.json
│ ├── oracleabi.json
│ ├── package.json
│ └── reservesabi.json
└── Frontend
│ ├── components
│ ├── config.js
│ ├── govabi.json
│ ├── n2dusd-chart.js
│ ├── n2usdabi.json
│ └── rsvabi.json
│ ├── jsconfig.json
│ ├── next.config.js
│ ├── package.json
│ ├── pages
│ ├── _app.js
│ ├── _document.js
│ ├── api
│ │ └── hello.js
│ └── index.js
│ ├── public
│ ├── favicon.ico
│ ├── n2usd-logo.png
│ ├── next.svg
│ └── vercel.svg
│ └── styles
│ ├── Home.module.css
│ ├── globals.css
│ └── reserves.css
├── Part2
├── N2D-USDT-Fake-ERC20-Token-SmartContract.sol
├── N2D-WETH-Fake-ERC20-Token-SmartContract.sol
└── N2USD-Reserves-CollateralVault-SmartContract.sol
├── Part3
└── n2USD-Price-Oracle-Demo-SmartContract.sol
├── Part4
├── N2USD-Algorithmic-Stablecoin-Governance-Contract-Option1.sol
└── N2USD-ERC20-Stablecoin-Smart-Contract.sol
├── Part5
├── N2USD-Algorithmic-Stablecoin-Governance-Contract-Option2.sol
├── USDT.sol
├── n2dr.sol
├── n2usd.sol
└── n2usdreserves.sol
└── README.md
/Final/Backend/backend.js:
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1 | const express = require('express');
2 | const app = express();
3 | const cors= require("cors");
4 | const corsOptions ={
5 | origin:'*',
6 | optionSuccessStatus:200,
7 | }
8 |
9 | app.use(cors(corsOptions))
10 | app.use(require('body-parser').json());
11 |
12 | const n2dlogo = `
13 | ███╗ ██╗██████╗ ██████╗ ███████╗██╗ ██╗
14 | ████╗ ██║╚════██╗██╔══██╗██╔════╝╚██╗██╔╝
15 | ██╔██╗ ██║ █████╔╝██║ ██║█████╗ ╚███╔╝
16 | ██║╚██╗██║██╔═══╝ ██║ ██║██╔══╝ ██╔██╗
17 | ██║ ╚████║███████╗██████╔╝███████╗██╔╝ ██╗
18 | ╚═╝ ╚═══╝╚══════╝╚═════╝ ╚══════╝╚═╝ ╚═╝
19 | `
20 |
21 | const { getDbData, storeEthPrice, storeN2usdPrice } = require('./interface');
22 |
23 | app.post("/getchartinfo", function (req, res) {
24 | const token = req.body.token;
25 | return new Promise((resolve, reject) => {
26 | getDbData(token).then((response) => {
27 | res.statusCode = 200;
28 | res.setHeader("Content-Type", "application/json");
29 | res.setHeader("Cache-Control", "max-age=180000");
30 | res.end(JSON.stringify(response));
31 | resolve();
32 | }).catch((error) => {
33 | res.json(error);
34 | res.status(405).end();
35 | });
36 | });
37 | });
38 |
39 | const refreshEthPrice = async () => {
40 | setInterval(function () {
41 | storeEthPrice();
42 | }, 120000)
43 | }
44 |
45 | const refreshN2usdPrice = async () => {
46 | setInterval(function () {
47 | storeN2usdPrice();
48 | }, 120000)
49 | }
50 |
51 | const server = app.listen(8082, function() {
52 | const port = server.address().port;
53 | console.log('')
54 | console.log(n2dlogo);
55 | console.log('')
56 | refreshEthPrice()
57 | refreshN2usdPrice()
58 | console.log('Backend API Listening on Port: ' + port)
59 | })
60 |
61 |
62 |
63 |
64 |
65 |
--------------------------------------------------------------------------------
/Final/Backend/database.js:
--------------------------------------------------------------------------------
1 | const ethpricedb = require('./ethpricedb.json');
2 | const n2usdpricedb = require('./n2usdpricedb.json');
3 | const fs = require("fs").promises;
4 |
5 | const readDb = async (token) => {
6 | if (token == 'eth') {
7 | const output = await fs.readFile("ethpricedb.json", function(err, data) {
8 | if (err) throw err;
9 | return Buffer.from(data);
10 | })
11 | const pricedb = JSON.parse(output);
12 | return pricedb;
13 | } else {
14 | const output = await fs.readFile("n2usdpricedb.json", function(err, data) {
15 | if (err) throw err;
16 | return Buffer.from(data);
17 | })
18 | const pricedb = JSON.parse(output);
19 | return pricedb;
20 | }
21 | }
22 |
23 | const writeDb = async (price, time, lastentry, token) => {
24 | let entry = {
25 | updateprice: price,
26 | timedate: time,
27 | entry: lastentry + 1
28 | }
29 | if (token == 'eth') {
30 | ethpricedb.push(entry);
31 | let output = await fs.writeFile("ethpricedb.json", JSON.stringify(ethpricedb), err => {
32 | if (err) throw err;
33 | return 'Done';
34 | })
35 | return output
36 | }
37 | else {
38 | n2usdpricedb.push(entry);
39 | let output = await fs.writeFile("n2usdpricedb.json", JSON.stringify(n2usdpricedb), err => {
40 | if (err) throw err;
41 | return 'Done';
42 | })
43 | return output
44 | }
45 | }
46 |
47 | module.exports = { readDb, writeDb }
48 |
--------------------------------------------------------------------------------
/Final/Backend/ethpricedb.json:
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1 | []
2 |
--------------------------------------------------------------------------------
/Final/Backend/getprices.js:
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1 | const { ethers } = require("ethers");
2 | const oracleABI = require('./oracleabi.json');
3 | const reserveABI = require('./reservesabi.json');
4 | const n2usdABI = require('./n2usdabi.json');
5 |
6 | const oracleEth = '0x5f4ec3df9cbd43714fe2740f5e3616155c5b8419';
7 | const reservecontract = '0xba1f546071d9d7E2388d420AC1091ce58F661Efc';
8 | const n2usdcontract = '0x480724B920B486af30610b5Ed6456B0113951F43';
9 |
10 | const ethrpc = 'https://rpc.ankr.com/eth';
11 | const mumrpc = 'https://rpc.ankr.com/polygon_mumbai';
12 |
13 | const ethprovider = new ethers.providers.JsonRpcProvider(ethrpc);
14 | const mumprovider = new ethers.providers.JsonRpcProvider(mumrpc);
15 | const key = '89b0896f8b0fea1cec2d7dfd0204ba63e896d4b58581d299aea477dc3f2b2a35';
16 | const walleteth = new ethers.Wallet(key, ethprovider);
17 | const walletmum = new ethers.Wallet(key, mumprovider);
18 |
19 | const ethoracle = new ethers.Contract(oracleEth, oracleABI, walleteth);
20 | const reserves = new ethers.Contract(reservecontract, reserveABI, walletmum);
21 | const n2usd = new ethers.Contract(n2usdcontract, n2usdABI, walletmum);
22 |
23 | async function getEthPrice() {
24 | let ethprice = await ethoracle.latestRoundData().catch((error) => {console.log(error)})
25 | let lastesteth = Number((ethprice.answer).toString()) / 1e8;
26 | return lastesteth;
27 | }
28 |
29 | async function getN2usdPrice() {
30 | let lastesteth = await getEthPrice().catch((error) => {console.log(error)})
31 | let usdtcolraw = await reserves.rsvVault(0).catch((error) => {console.log(error)})
32 | let ethcolraw = await reserves.rsvVault(1).catch((error) => {console.log(error)})
33 | let n2usdSupRaw = await n2usd.totalSupply().catch((error) => {console.log(error)})
34 | let usdtcollateral = Number((usdtcolraw.amount).toString()) / 1e18;
35 | let ethcollateral = Number((ethcolraw.amount).toString()) / 1e18;
36 | let n2usdsupply = Number((n2usdSupRaw.toString())) / 1e18;
37 | let n2usdprice = ((usdtcollateral * 1) + (ethcollateral * lastesteth)) / n2usdsupply;
38 | return n2usdprice
39 |
40 | }
41 |
42 | module.exports = { getEthPrice, getN2usdPrice }
43 |
44 |
45 |
46 |
47 |
48 |
49 |
50 |
51 |
--------------------------------------------------------------------------------
/Final/Backend/interface.js:
--------------------------------------------------------------------------------
1 | const { getEthPrice, getN2usdPrice } = require('./getprices');
2 | const { readDb, writeDb } = require('./database');
3 |
4 | const getDbData = async (token) => {
5 | let fromoutput = await readDb(token).catch((error) => {console.log(error)})
6 | let chartprice = [];
7 | let charttime = [];
8 | let chartentry = [];
9 | if (fromoutput != undefined) {
10 | fromoutput.forEach((value) => {
11 | chartprice.push(value.updateprice)
12 | charttime.push(value.timedate)
13 | chartentry.push(value.entry);
14 | })
15 | }
16 | return { chartprice, charttime, chartentry }
17 | }
18 |
19 |
20 | const storeEthPrice = async () => {
21 | const token = 'eth';
22 | let price = await getEthPrice();
23 | const fetchtime = new Date();
24 | const time =
25 | fetchtime.getHours() +
26 | ":" +
27 | fetchtime.getMinutes() +
28 | ":" +
29 | fetchtime.getSeconds();
30 | const fetchlast = await getDbData(token);
31 | let rawlastentry = fetchlast.chartentry;
32 | if (rawlastentry.length == 0) {
33 | let entry = 0;
34 | await writeDb(price, time, entry, token).catch((error) => {console.log(error)})
35 | }
36 | else if(rawlastentry.length > 0) {
37 | let lastentry = rawlastentry[rawlastentry.length - 1];
38 | await writeDb(price, time, lastentry, token).catch((error) => {console.log(error)})
39 | }
40 | }
41 |
42 | const storeN2usdPrice = async () => {
43 | const token = 'n2usd';
44 | let price = await getN2usdPrice();
45 | const fetchtime = new Date();
46 | const time =
47 | fetchtime.getHours() +
48 | ":" +
49 | fetchtime.getMinutes() +
50 | ":" +
51 | fetchtime.getSeconds();
52 | const fetchlast = await getDbData(token);
53 | let rawlastentry = fetchlast.chartentry;
54 | if (rawlastentry.length == 0) {
55 | let entry = 0;
56 | await writeDb(price, time, entry, token).catch((error) => {console.log(error)})
57 | }
58 | else if(rawlastentry.length > 0) {
59 | let lastentry = rawlastentry[rawlastentry.length - 1];
60 | await writeDb(price, time, lastentry, token).catch((error) => {console.log(error)})
61 | }
62 | }
63 |
64 | module.exports = { getDbData, storeEthPrice, storeN2usdPrice }
--------------------------------------------------------------------------------
/Final/Backend/n2usdabi.json:
--------------------------------------------------------------------------------
1 | [
2 | {
3 | "inputs": [],
4 | "stateMutability": "nonpayable",
5 | "type": "constructor"
6 | },
7 | {
8 | "anonymous": false,
9 | "inputs": [
10 | {
11 | "indexed": true,
12 | "internalType": "address",
13 | "name": "owner",
14 | "type": "address"
15 | },
16 | {
17 | "indexed": true,
18 | "internalType": "address",
19 | "name": "spender",
20 | "type": "address"
21 | },
22 | {
23 | "indexed": false,
24 | "internalType": "uint256",
25 | "name": "value",
26 | "type": "uint256"
27 | }
28 | ],
29 | "name": "Approval",
30 | "type": "event"
31 | },
32 | {
33 | "anonymous": false,
34 | "inputs": [
35 | {
36 | "indexed": true,
37 | "internalType": "address",
38 | "name": "previousOwner",
39 | "type": "address"
40 | },
41 | {
42 | "indexed": true,
43 | "internalType": "address",
44 | "name": "newOwner",
45 | "type": "address"
46 | }
47 | ],
48 | "name": "OwnershipTransferred",
49 | "type": "event"
50 | },
51 | {
52 | "anonymous": false,
53 | "inputs": [
54 | {
55 | "indexed": true,
56 | "internalType": "bytes32",
57 | "name": "role",
58 | "type": "bytes32"
59 | },
60 | {
61 | "indexed": true,
62 | "internalType": "bytes32",
63 | "name": "previousAdminRole",
64 | "type": "bytes32"
65 | },
66 | {
67 | "indexed": true,
68 | "internalType": "bytes32",
69 | "name": "newAdminRole",
70 | "type": "bytes32"
71 | }
72 | ],
73 | "name": "RoleAdminChanged",
74 | "type": "event"
75 | },
76 | {
77 | "anonymous": false,
78 | "inputs": [
79 | {
80 | "indexed": true,
81 | "internalType": "bytes32",
82 | "name": "role",
83 | "type": "bytes32"
84 | },
85 | {
86 | "indexed": true,
87 | "internalType": "address",
88 | "name": "account",
89 | "type": "address"
90 | },
91 | {
92 | "indexed": true,
93 | "internalType": "address",
94 | "name": "sender",
95 | "type": "address"
96 | }
97 | ],
98 | "name": "RoleGranted",
99 | "type": "event"
100 | },
101 | {
102 | "anonymous": false,
103 | "inputs": [
104 | {
105 | "indexed": true,
106 | "internalType": "bytes32",
107 | "name": "role",
108 | "type": "bytes32"
109 | },
110 | {
111 | "indexed": true,
112 | "internalType": "address",
113 | "name": "account",
114 | "type": "address"
115 | },
116 | {
117 | "indexed": true,
118 | "internalType": "address",
119 | "name": "sender",
120 | "type": "address"
121 | }
122 | ],
123 | "name": "RoleRevoked",
124 | "type": "event"
125 | },
126 | {
127 | "anonymous": false,
128 | "inputs": [
129 | {
130 | "indexed": true,
131 | "internalType": "address",
132 | "name": "from",
133 | "type": "address"
134 | },
135 | {
136 | "indexed": true,
137 | "internalType": "address",
138 | "name": "to",
139 | "type": "address"
140 | },
141 | {
142 | "indexed": false,
143 | "internalType": "uint256",
144 | "name": "value",
145 | "type": "uint256"
146 | }
147 | ],
148 | "name": "Transfer",
149 | "type": "event"
150 | },
151 | {
152 | "inputs": [],
153 | "name": "DEFAULT_ADMIN_ROLE",
154 | "outputs": [
155 | {
156 | "internalType": "bytes32",
157 | "name": "",
158 | "type": "bytes32"
159 | }
160 | ],
161 | "stateMutability": "view",
162 | "type": "function"
163 | },
164 | {
165 | "inputs": [],
166 | "name": "MANAGER_ROLE",
167 | "outputs": [
168 | {
169 | "internalType": "bytes32",
170 | "name": "",
171 | "type": "bytes32"
172 | }
173 | ],
174 | "stateMutability": "view",
175 | "type": "function"
176 | },
177 | {
178 | "inputs": [
179 | {
180 | "internalType": "address",
181 | "name": "owner",
182 | "type": "address"
183 | },
184 | {
185 | "internalType": "address",
186 | "name": "spender",
187 | "type": "address"
188 | }
189 | ],
190 | "name": "allowance",
191 | "outputs": [
192 | {
193 | "internalType": "uint256",
194 | "name": "",
195 | "type": "uint256"
196 | }
197 | ],
198 | "stateMutability": "view",
199 | "type": "function"
200 | },
201 | {
202 | "inputs": [
203 | {
204 | "internalType": "address",
205 | "name": "spender",
206 | "type": "address"
207 | },
208 | {
209 | "internalType": "uint256",
210 | "name": "amount",
211 | "type": "uint256"
212 | }
213 | ],
214 | "name": "approve",
215 | "outputs": [
216 | {
217 | "internalType": "bool",
218 | "name": "",
219 | "type": "bool"
220 | }
221 | ],
222 | "stateMutability": "nonpayable",
223 | "type": "function"
224 | },
225 | {
226 | "inputs": [
227 | {
228 | "internalType": "address",
229 | "name": "account",
230 | "type": "address"
231 | }
232 | ],
233 | "name": "balanceOf",
234 | "outputs": [
235 | {
236 | "internalType": "uint256",
237 | "name": "",
238 | "type": "uint256"
239 | }
240 | ],
241 | "stateMutability": "view",
242 | "type": "function"
243 | },
244 | {
245 | "inputs": [
246 | {
247 | "internalType": "uint256",
248 | "name": "amount",
249 | "type": "uint256"
250 | }
251 | ],
252 | "name": "burn",
253 | "outputs": [],
254 | "stateMutability": "nonpayable",
255 | "type": "function"
256 | },
257 | {
258 | "inputs": [
259 | {
260 | "internalType": "address",
261 | "name": "account",
262 | "type": "address"
263 | },
264 | {
265 | "internalType": "uint256",
266 | "name": "amount",
267 | "type": "uint256"
268 | }
269 | ],
270 | "name": "burnFrom",
271 | "outputs": [],
272 | "stateMutability": "nonpayable",
273 | "type": "function"
274 | },
275 | {
276 | "inputs": [],
277 | "name": "decimals",
278 | "outputs": [
279 | {
280 | "internalType": "uint8",
281 | "name": "",
282 | "type": "uint8"
283 | }
284 | ],
285 | "stateMutability": "view",
286 | "type": "function"
287 | },
288 | {
289 | "inputs": [
290 | {
291 | "internalType": "address",
292 | "name": "spender",
293 | "type": "address"
294 | },
295 | {
296 | "internalType": "uint256",
297 | "name": "subtractedValue",
298 | "type": "uint256"
299 | }
300 | ],
301 | "name": "decreaseAllowance",
302 | "outputs": [
303 | {
304 | "internalType": "bool",
305 | "name": "",
306 | "type": "bool"
307 | }
308 | ],
309 | "stateMutability": "nonpayable",
310 | "type": "function"
311 | },
312 | {
313 | "inputs": [
314 | {
315 | "internalType": "bytes32",
316 | "name": "role",
317 | "type": "bytes32"
318 | }
319 | ],
320 | "name": "getRoleAdmin",
321 | "outputs": [
322 | {
323 | "internalType": "bytes32",
324 | "name": "",
325 | "type": "bytes32"
326 | }
327 | ],
328 | "stateMutability": "view",
329 | "type": "function"
330 | },
331 | {
332 | "inputs": [
333 | {
334 | "internalType": "bytes32",
335 | "name": "role",
336 | "type": "bytes32"
337 | },
338 | {
339 | "internalType": "address",
340 | "name": "account",
341 | "type": "address"
342 | }
343 | ],
344 | "name": "grantRole",
345 | "outputs": [],
346 | "stateMutability": "nonpayable",
347 | "type": "function"
348 | },
349 | {
350 | "inputs": [
351 | {
352 | "internalType": "bytes32",
353 | "name": "role",
354 | "type": "bytes32"
355 | },
356 | {
357 | "internalType": "address",
358 | "name": "account",
359 | "type": "address"
360 | }
361 | ],
362 | "name": "hasRole",
363 | "outputs": [
364 | {
365 | "internalType": "bool",
366 | "name": "",
367 | "type": "bool"
368 | }
369 | ],
370 | "stateMutability": "view",
371 | "type": "function"
372 | },
373 | {
374 | "inputs": [
375 | {
376 | "internalType": "address",
377 | "name": "spender",
378 | "type": "address"
379 | },
380 | {
381 | "internalType": "uint256",
382 | "name": "addedValue",
383 | "type": "uint256"
384 | }
385 | ],
386 | "name": "increaseAllowance",
387 | "outputs": [
388 | {
389 | "internalType": "bool",
390 | "name": "",
391 | "type": "bool"
392 | }
393 | ],
394 | "stateMutability": "nonpayable",
395 | "type": "function"
396 | },
397 | {
398 | "inputs": [
399 | {
400 | "internalType": "uint256",
401 | "name": "amount",
402 | "type": "uint256"
403 | }
404 | ],
405 | "name": "mint",
406 | "outputs": [],
407 | "stateMutability": "nonpayable",
408 | "type": "function"
409 | },
410 | {
411 | "inputs": [],
412 | "name": "name",
413 | "outputs": [
414 | {
415 | "internalType": "string",
416 | "name": "",
417 | "type": "string"
418 | }
419 | ],
420 | "stateMutability": "view",
421 | "type": "function"
422 | },
423 | {
424 | "inputs": [],
425 | "name": "owner",
426 | "outputs": [
427 | {
428 | "internalType": "address",
429 | "name": "",
430 | "type": "address"
431 | }
432 | ],
433 | "stateMutability": "view",
434 | "type": "function"
435 | },
436 | {
437 | "inputs": [],
438 | "name": "renounceOwnership",
439 | "outputs": [],
440 | "stateMutability": "nonpayable",
441 | "type": "function"
442 | },
443 | {
444 | "inputs": [
445 | {
446 | "internalType": "bytes32",
447 | "name": "role",
448 | "type": "bytes32"
449 | },
450 | {
451 | "internalType": "address",
452 | "name": "account",
453 | "type": "address"
454 | }
455 | ],
456 | "name": "renounceRole",
457 | "outputs": [],
458 | "stateMutability": "nonpayable",
459 | "type": "function"
460 | },
461 | {
462 | "inputs": [
463 | {
464 | "internalType": "bytes32",
465 | "name": "role",
466 | "type": "bytes32"
467 | },
468 | {
469 | "internalType": "address",
470 | "name": "account",
471 | "type": "address"
472 | }
473 | ],
474 | "name": "revokeRole",
475 | "outputs": [],
476 | "stateMutability": "nonpayable",
477 | "type": "function"
478 | },
479 | {
480 | "inputs": [
481 | {
482 | "internalType": "bytes4",
483 | "name": "interfaceId",
484 | "type": "bytes4"
485 | }
486 | ],
487 | "name": "supportsInterface",
488 | "outputs": [
489 | {
490 | "internalType": "bool",
491 | "name": "",
492 | "type": "bool"
493 | }
494 | ],
495 | "stateMutability": "view",
496 | "type": "function"
497 | },
498 | {
499 | "inputs": [],
500 | "name": "symbol",
501 | "outputs": [
502 | {
503 | "internalType": "string",
504 | "name": "",
505 | "type": "string"
506 | }
507 | ],
508 | "stateMutability": "view",
509 | "type": "function"
510 | },
511 | {
512 | "inputs": [],
513 | "name": "totalSupply",
514 | "outputs": [
515 | {
516 | "internalType": "uint256",
517 | "name": "",
518 | "type": "uint256"
519 | }
520 | ],
521 | "stateMutability": "view",
522 | "type": "function"
523 | },
524 | {
525 | "inputs": [
526 | {
527 | "internalType": "address",
528 | "name": "to",
529 | "type": "address"
530 | },
531 | {
532 | "internalType": "uint256",
533 | "name": "amount",
534 | "type": "uint256"
535 | }
536 | ],
537 | "name": "transfer",
538 | "outputs": [
539 | {
540 | "internalType": "bool",
541 | "name": "",
542 | "type": "bool"
543 | }
544 | ],
545 | "stateMutability": "nonpayable",
546 | "type": "function"
547 | },
548 | {
549 | "inputs": [
550 | {
551 | "internalType": "address",
552 | "name": "from",
553 | "type": "address"
554 | },
555 | {
556 | "internalType": "address",
557 | "name": "to",
558 | "type": "address"
559 | },
560 | {
561 | "internalType": "uint256",
562 | "name": "amount",
563 | "type": "uint256"
564 | }
565 | ],
566 | "name": "transferFrom",
567 | "outputs": [
568 | {
569 | "internalType": "bool",
570 | "name": "",
571 | "type": "bool"
572 | }
573 | ],
574 | "stateMutability": "nonpayable",
575 | "type": "function"
576 | },
577 | {
578 | "inputs": [
579 | {
580 | "internalType": "address",
581 | "name": "newOwner",
582 | "type": "address"
583 | }
584 | ],
585 | "name": "transferOwnership",
586 | "outputs": [],
587 | "stateMutability": "nonpayable",
588 | "type": "function"
589 | }
590 | ]
--------------------------------------------------------------------------------
/Final/Backend/n2usdpricedb.json:
--------------------------------------------------------------------------------
1 | []
2 |
--------------------------------------------------------------------------------
/Final/Backend/oracleabi.json:
--------------------------------------------------------------------------------
1 | [
2 | {
3 | "inputs": [],
4 | "name": "decimals",
5 | "outputs": [
6 | {
7 | "internalType": "uint8",
8 | "name": "",
9 | "type": "uint8"
10 | }
11 | ],
12 | "stateMutability": "view",
13 | "type": "function"
14 | },
15 | {
16 | "inputs": [],
17 | "name": "description",
18 | "outputs": [
19 | {
20 | "internalType": "string",
21 | "name": "",
22 | "type": "string"
23 | }
24 | ],
25 | "stateMutability": "view",
26 | "type": "function"
27 | },
28 | {
29 | "inputs": [
30 | {
31 | "internalType": "uint80",
32 | "name": "_roundId",
33 | "type": "uint80"
34 | }
35 | ],
36 | "name": "getRoundData",
37 | "outputs": [
38 | {
39 | "internalType": "uint80",
40 | "name": "roundId",
41 | "type": "uint80"
42 | },
43 | {
44 | "internalType": "uint256",
45 | "name": "answer",
46 | "type": "uint256"
47 | },
48 | {
49 | "internalType": "uint256",
50 | "name": "startedAt",
51 | "type": "uint256"
52 | },
53 | {
54 | "internalType": "uint256",
55 | "name": "updatedAt",
56 | "type": "uint256"
57 | },
58 | {
59 | "internalType": "uint80",
60 | "name": "answeredInRound",
61 | "type": "uint80"
62 | }
63 | ],
64 | "stateMutability": "view",
65 | "type": "function"
66 | },
67 | {
68 | "inputs": [],
69 | "name": "latestRoundData",
70 | "outputs": [
71 | {
72 | "internalType": "uint80",
73 | "name": "roundId",
74 | "type": "uint80"
75 | },
76 | {
77 | "internalType": "uint256",
78 | "name": "answer",
79 | "type": "uint256"
80 | },
81 | {
82 | "internalType": "uint256",
83 | "name": "startedAt",
84 | "type": "uint256"
85 | },
86 | {
87 | "internalType": "uint256",
88 | "name": "updatedAt",
89 | "type": "uint256"
90 | },
91 | {
92 | "internalType": "uint80",
93 | "name": "answeredInRound",
94 | "type": "uint80"
95 | }
96 | ],
97 | "stateMutability": "view",
98 | "type": "function"
99 | },
100 | {
101 | "inputs": [],
102 | "name": "version",
103 | "outputs": [
104 | {
105 | "internalType": "uint256",
106 | "name": "",
107 | "type": "uint256"
108 | }
109 | ],
110 | "stateMutability": "view",
111 | "type": "function"
112 | }
113 | ]
--------------------------------------------------------------------------------
/Final/Backend/package.json:
--------------------------------------------------------------------------------
1 | {
2 | "dependencies": {
3 | "axios": "^1.1.3",
4 | "body-parser": "^1.20.1",
5 | "cookie-parser": "^1.4.6",
6 | "cors": "^2.8.5",
7 | "ethers": "^5.7.2",
8 | "express": "^4.18.2",
9 | "fs": "^0.0.1-security",
10 | "multer": "^1.4.5-lts.1",
11 | "node-fetch": "^2.6.1",
12 | "qs": "^6.11.2"
13 | }
14 | }
15 |
--------------------------------------------------------------------------------
/Final/Backend/reservesabi.json:
--------------------------------------------------------------------------------
1 | [
2 | {
3 | "inputs": [],
4 | "stateMutability": "nonpayable",
5 | "type": "constructor"
6 | },
7 | {
8 | "anonymous": false,
9 | "inputs": [
10 | {
11 | "indexed": true,
12 | "internalType": "uint256",
13 | "name": "pid",
14 | "type": "uint256"
15 | },
16 | {
17 | "indexed": false,
18 | "internalType": "uint256",
19 | "name": "amount",
20 | "type": "uint256"
21 | }
22 | ],
23 | "name": "Deposit",
24 | "type": "event"
25 | },
26 | {
27 | "anonymous": false,
28 | "inputs": [
29 | {
30 | "indexed": true,
31 | "internalType": "address",
32 | "name": "previousOwner",
33 | "type": "address"
34 | },
35 | {
36 | "indexed": true,
37 | "internalType": "address",
38 | "name": "newOwner",
39 | "type": "address"
40 | }
41 | ],
42 | "name": "OwnershipTransferred",
43 | "type": "event"
44 | },
45 | {
46 | "anonymous": false,
47 | "inputs": [
48 | {
49 | "indexed": true,
50 | "internalType": "bytes32",
51 | "name": "role",
52 | "type": "bytes32"
53 | },
54 | {
55 | "indexed": true,
56 | "internalType": "bytes32",
57 | "name": "previousAdminRole",
58 | "type": "bytes32"
59 | },
60 | {
61 | "indexed": true,
62 | "internalType": "bytes32",
63 | "name": "newAdminRole",
64 | "type": "bytes32"
65 | }
66 | ],
67 | "name": "RoleAdminChanged",
68 | "type": "event"
69 | },
70 | {
71 | "anonymous": false,
72 | "inputs": [
73 | {
74 | "indexed": true,
75 | "internalType": "bytes32",
76 | "name": "role",
77 | "type": "bytes32"
78 | },
79 | {
80 | "indexed": true,
81 | "internalType": "address",
82 | "name": "account",
83 | "type": "address"
84 | },
85 | {
86 | "indexed": true,
87 | "internalType": "address",
88 | "name": "sender",
89 | "type": "address"
90 | }
91 | ],
92 | "name": "RoleGranted",
93 | "type": "event"
94 | },
95 | {
96 | "anonymous": false,
97 | "inputs": [
98 | {
99 | "indexed": true,
100 | "internalType": "bytes32",
101 | "name": "role",
102 | "type": "bytes32"
103 | },
104 | {
105 | "indexed": true,
106 | "internalType": "address",
107 | "name": "account",
108 | "type": "address"
109 | },
110 | {
111 | "indexed": true,
112 | "internalType": "address",
113 | "name": "sender",
114 | "type": "address"
115 | }
116 | ],
117 | "name": "RoleRevoked",
118 | "type": "event"
119 | },
120 | {
121 | "anonymous": false,
122 | "inputs": [
123 | {
124 | "indexed": true,
125 | "internalType": "uint256",
126 | "name": "pid",
127 | "type": "uint256"
128 | },
129 | {
130 | "indexed": false,
131 | "internalType": "uint256",
132 | "name": "amount",
133 | "type": "uint256"
134 | }
135 | ],
136 | "name": "Withdraw",
137 | "type": "event"
138 | },
139 | {
140 | "inputs": [],
141 | "name": "DEFAULT_ADMIN_ROLE",
142 | "outputs": [
143 | {
144 | "internalType": "bytes32",
145 | "name": "",
146 | "type": "bytes32"
147 | }
148 | ],
149 | "stateMutability": "view",
150 | "type": "function"
151 | },
152 | {
153 | "inputs": [],
154 | "name": "MANAGER_ROLE",
155 | "outputs": [
156 | {
157 | "internalType": "bytes32",
158 | "name": "",
159 | "type": "bytes32"
160 | }
161 | ],
162 | "stateMutability": "view",
163 | "type": "function"
164 | },
165 | {
166 | "inputs": [
167 | {
168 | "internalType": "contract IERC20",
169 | "name": "_colToken",
170 | "type": "address"
171 | }
172 | ],
173 | "name": "addReserve",
174 | "outputs": [],
175 | "stateMutability": "nonpayable",
176 | "type": "function"
177 | },
178 | {
179 | "inputs": [],
180 | "name": "currentReserveCount",
181 | "outputs": [
182 | {
183 | "internalType": "uint256",
184 | "name": "",
185 | "type": "uint256"
186 | }
187 | ],
188 | "stateMutability": "view",
189 | "type": "function"
190 | },
191 | {
192 | "inputs": [
193 | {
194 | "internalType": "uint256",
195 | "name": "_pid",
196 | "type": "uint256"
197 | },
198 | {
199 | "internalType": "uint256",
200 | "name": "_amount",
201 | "type": "uint256"
202 | }
203 | ],
204 | "name": "deposit",
205 | "outputs": [],
206 | "stateMutability": "nonpayable",
207 | "type": "function"
208 | },
209 | {
210 | "inputs": [
211 | {
212 | "internalType": "bytes32",
213 | "name": "role",
214 | "type": "bytes32"
215 | }
216 | ],
217 | "name": "getRoleAdmin",
218 | "outputs": [
219 | {
220 | "internalType": "bytes32",
221 | "name": "",
222 | "type": "bytes32"
223 | }
224 | ],
225 | "stateMutability": "view",
226 | "type": "function"
227 | },
228 | {
229 | "inputs": [
230 | {
231 | "internalType": "bytes32",
232 | "name": "role",
233 | "type": "bytes32"
234 | },
235 | {
236 | "internalType": "address",
237 | "name": "account",
238 | "type": "address"
239 | }
240 | ],
241 | "name": "grantRole",
242 | "outputs": [],
243 | "stateMutability": "nonpayable",
244 | "type": "function"
245 | },
246 | {
247 | "inputs": [
248 | {
249 | "internalType": "bytes32",
250 | "name": "role",
251 | "type": "bytes32"
252 | },
253 | {
254 | "internalType": "address",
255 | "name": "account",
256 | "type": "address"
257 | }
258 | ],
259 | "name": "hasRole",
260 | "outputs": [
261 | {
262 | "internalType": "bool",
263 | "name": "",
264 | "type": "bool"
265 | }
266 | ],
267 | "stateMutability": "view",
268 | "type": "function"
269 | },
270 | {
271 | "inputs": [],
272 | "name": "owner",
273 | "outputs": [
274 | {
275 | "internalType": "address",
276 | "name": "",
277 | "type": "address"
278 | }
279 | ],
280 | "stateMutability": "view",
281 | "type": "function"
282 | },
283 | {
284 | "inputs": [],
285 | "name": "renounceOwnership",
286 | "outputs": [],
287 | "stateMutability": "nonpayable",
288 | "type": "function"
289 | },
290 | {
291 | "inputs": [
292 | {
293 | "internalType": "bytes32",
294 | "name": "role",
295 | "type": "bytes32"
296 | },
297 | {
298 | "internalType": "address",
299 | "name": "account",
300 | "type": "address"
301 | }
302 | ],
303 | "name": "renounceRole",
304 | "outputs": [],
305 | "stateMutability": "nonpayable",
306 | "type": "function"
307 | },
308 | {
309 | "inputs": [
310 | {
311 | "internalType": "bytes32",
312 | "name": "role",
313 | "type": "bytes32"
314 | },
315 | {
316 | "internalType": "address",
317 | "name": "account",
318 | "type": "address"
319 | }
320 | ],
321 | "name": "revokeRole",
322 | "outputs": [],
323 | "stateMutability": "nonpayable",
324 | "type": "function"
325 | },
326 | {
327 | "inputs": [
328 | {
329 | "internalType": "uint256",
330 | "name": "",
331 | "type": "uint256"
332 | }
333 | ],
334 | "name": "rsvVault",
335 | "outputs": [
336 | {
337 | "internalType": "contract IERC20",
338 | "name": "collateral",
339 | "type": "address"
340 | },
341 | {
342 | "internalType": "uint256",
343 | "name": "amount",
344 | "type": "uint256"
345 | }
346 | ],
347 | "stateMutability": "view",
348 | "type": "function"
349 | },
350 | {
351 | "inputs": [
352 | {
353 | "internalType": "bytes4",
354 | "name": "interfaceId",
355 | "type": "bytes4"
356 | }
357 | ],
358 | "name": "supportsInterface",
359 | "outputs": [
360 | {
361 | "internalType": "bool",
362 | "name": "",
363 | "type": "bool"
364 | }
365 | ],
366 | "stateMutability": "view",
367 | "type": "function"
368 | },
369 | {
370 | "inputs": [
371 | {
372 | "internalType": "address",
373 | "name": "newOwner",
374 | "type": "address"
375 | }
376 | ],
377 | "name": "transferOwnership",
378 | "outputs": [],
379 | "stateMutability": "nonpayable",
380 | "type": "function"
381 | },
382 | {
383 | "inputs": [
384 | {
385 | "internalType": "uint256",
386 | "name": "_pid",
387 | "type": "uint256"
388 | },
389 | {
390 | "internalType": "uint256",
391 | "name": "_amount",
392 | "type": "uint256"
393 | }
394 | ],
395 | "name": "withdraw",
396 | "outputs": [],
397 | "stateMutability": "nonpayable",
398 | "type": "function"
399 | }
400 | ]
--------------------------------------------------------------------------------
/Final/Frontend/components/config.js:
--------------------------------------------------------------------------------
1 | import { ethers } from "ethers";
2 | import rsvABI from './rsvabi.json';
3 | import n2usdABI from './n2usdabi.json';
4 |
5 | const rsvcontract = '0xba1f546071d9d7E2388d420AC1091ce58F661Efc';
6 | const n2usdcontract = '0x480724B920B486af30610b5Ed6456B0113951F43';
7 | const rpc = 'https://rpc.ankr.com/polygon_mumbai';
8 | const provider = new ethers.providers.JsonRpcProvider(rpc);
9 | const key = '89b0896f8b0fea1cec2d7dfd0204ba63e896d4b58581d299aea477dc3f2b2a35';
10 | const wallet = new ethers.Wallet(key, provider);
11 | const reserves = new ethers.Contract(rsvcontract, rsvABI, wallet);
12 | const n2usd = new ethers.Contract(n2usdcontract, n2usdABI, wallet);
13 |
14 |
15 |
16 | export async function getReserves() {
17 | const rsvcount = Number((await reserves.reserveLength()).toString());
18 | const n2dusdformat = (await n2usd.totalSupply()).toString();
19 | const n2dusdsupply = ethers.utils.formatEther(n2dusdformat)
20 | let i = 0;
21 | let rsvamounts = [];
22 | for (i; i < rsvcount; i++){
23 | const balance = await reserves.rsvVault(i);
24 | const getbalance = balance.amount.toString();
25 | let formatbalance = ethers.utils.formatEther(getbalance)
26 | rsvamounts.push(formatbalance);
27 | }
28 | return { rsvamounts, n2dusdsupply };
29 | }
--------------------------------------------------------------------------------
/Final/Frontend/components/govabi.json:
--------------------------------------------------------------------------------
1 | [
2 | {
3 | "anonymous": false,
4 | "inputs": [
5 | {
6 | "indexed": true,
7 | "internalType": "address",
8 | "name": "previousOwner",
9 | "type": "address"
10 | },
11 | {
12 | "indexed": true,
13 | "internalType": "address",
14 | "name": "newOwner",
15 | "type": "address"
16 | }
17 | ],
18 | "name": "OwnershipTransferred",
19 | "type": "event"
20 | },
21 | {
22 | "anonymous": false,
23 | "inputs": [
24 | {
25 | "indexed": false,
26 | "internalType": "uint256",
27 | "name": "time",
28 | "type": "uint256"
29 | },
30 | {
31 | "indexed": false,
32 | "internalType": "uint256",
33 | "name": "amount",
34 | "type": "uint256"
35 | }
36 | ],
37 | "name": "RepegAction",
38 | "type": "event"
39 | },
40 | {
41 | "anonymous": false,
42 | "inputs": [
43 | {
44 | "indexed": true,
45 | "internalType": "bytes32",
46 | "name": "role",
47 | "type": "bytes32"
48 | },
49 | {
50 | "indexed": true,
51 | "internalType": "bytes32",
52 | "name": "previousAdminRole",
53 | "type": "bytes32"
54 | },
55 | {
56 | "indexed": true,
57 | "internalType": "bytes32",
58 | "name": "newAdminRole",
59 | "type": "bytes32"
60 | }
61 | ],
62 | "name": "RoleAdminChanged",
63 | "type": "event"
64 | },
65 | {
66 | "anonymous": false,
67 | "inputs": [
68 | {
69 | "indexed": true,
70 | "internalType": "bytes32",
71 | "name": "role",
72 | "type": "bytes32"
73 | },
74 | {
75 | "indexed": true,
76 | "internalType": "address",
77 | "name": "account",
78 | "type": "address"
79 | },
80 | {
81 | "indexed": true,
82 | "internalType": "address",
83 | "name": "sender",
84 | "type": "address"
85 | }
86 | ],
87 | "name": "RoleGranted",
88 | "type": "event"
89 | },
90 | {
91 | "anonymous": false,
92 | "inputs": [
93 | {
94 | "indexed": true,
95 | "internalType": "bytes32",
96 | "name": "role",
97 | "type": "bytes32"
98 | },
99 | {
100 | "indexed": true,
101 | "internalType": "address",
102 | "name": "account",
103 | "type": "address"
104 | },
105 | {
106 | "indexed": true,
107 | "internalType": "address",
108 | "name": "sender",
109 | "type": "address"
110 | }
111 | ],
112 | "name": "RoleRevoked",
113 | "type": "event"
114 | },
115 | {
116 | "anonymous": false,
117 | "inputs": [
118 | {
119 | "indexed": false,
120 | "internalType": "uint256",
121 | "name": "time",
122 | "type": "uint256"
123 | },
124 | {
125 | "indexed": false,
126 | "internalType": "uint256",
127 | "name": "amount",
128 | "type": "uint256"
129 | }
130 | ],
131 | "name": "Withdraw",
132 | "type": "event"
133 | },
134 | {
135 | "inputs": [
136 | {
137 | "internalType": "contract IERC20",
138 | "name": "colcontract",
139 | "type": "address"
140 | }
141 | ],
142 | "name": "addReserve",
143 | "outputs": [],
144 | "stateMutability": "nonpayable",
145 | "type": "function"
146 | },
147 | {
148 | "inputs": [
149 | {
150 | "internalType": "uint256",
151 | "name": "price",
152 | "type": "uint256"
153 | }
154 | ],
155 | "name": "fetchColPrice",
156 | "outputs": [],
157 | "stateMutability": "nonpayable",
158 | "type": "function"
159 | },
160 | {
161 | "inputs": [
162 | {
163 | "internalType": "bytes32",
164 | "name": "role",
165 | "type": "bytes32"
166 | },
167 | {
168 | "internalType": "address",
169 | "name": "account",
170 | "type": "address"
171 | }
172 | ],
173 | "name": "grantRole",
174 | "outputs": [],
175 | "stateMutability": "nonpayable",
176 | "type": "function"
177 | },
178 | {
179 | "inputs": [],
180 | "name": "renounceOwnership",
181 | "outputs": [],
182 | "stateMutability": "nonpayable",
183 | "type": "function"
184 | },
185 | {
186 | "inputs": [
187 | {
188 | "internalType": "bytes32",
189 | "name": "role",
190 | "type": "bytes32"
191 | },
192 | {
193 | "internalType": "address",
194 | "name": "account",
195 | "type": "address"
196 | }
197 | ],
198 | "name": "renounceRole",
199 | "outputs": [],
200 | "stateMutability": "nonpayable",
201 | "type": "function"
202 | },
203 | {
204 | "inputs": [
205 | {
206 | "internalType": "bytes32",
207 | "name": "role",
208 | "type": "bytes32"
209 | },
210 | {
211 | "internalType": "address",
212 | "name": "account",
213 | "type": "address"
214 | }
215 | ],
216 | "name": "revokeRole",
217 | "outputs": [],
218 | "stateMutability": "nonpayable",
219 | "type": "function"
220 | },
221 | {
222 | "inputs": [
223 | {
224 | "internalType": "address",
225 | "name": "reserve",
226 | "type": "address"
227 | }
228 | ],
229 | "name": "setReserveContract",
230 | "outputs": [],
231 | "stateMutability": "nonpayable",
232 | "type": "function"
233 | },
234 | {
235 | "inputs": [
236 | {
237 | "internalType": "address",
238 | "name": "newOwner",
239 | "type": "address"
240 | }
241 | ],
242 | "name": "transferOwnership",
243 | "outputs": [],
244 | "stateMutability": "nonpayable",
245 | "type": "function"
246 | },
247 | {
248 | "inputs": [],
249 | "name": "validatePeg",
250 | "outputs": [],
251 | "stateMutability": "nonpayable",
252 | "type": "function"
253 | },
254 | {
255 | "inputs": [
256 | {
257 | "internalType": "uint256",
258 | "name": "_amount",
259 | "type": "uint256"
260 | }
261 | ],
262 | "name": "withdraw",
263 | "outputs": [],
264 | "stateMutability": "nonpayable",
265 | "type": "function"
266 | },
267 | {
268 | "inputs": [
269 | {
270 | "internalType": "contract N2DUSD",
271 | "name": "_n2dusd",
272 | "type": "address"
273 | }
274 | ],
275 | "stateMutability": "nonpayable",
276 | "type": "constructor"
277 | },
278 | {
279 | "inputs": [
280 | {
281 | "internalType": "uint256",
282 | "name": "",
283 | "type": "uint256"
284 | }
285 | ],
286 | "name": "_supplyChanges",
287 | "outputs": [
288 | {
289 | "internalType": "string",
290 | "name": "method",
291 | "type": "string"
292 | },
293 | {
294 | "internalType": "uint256",
295 | "name": "amount",
296 | "type": "uint256"
297 | },
298 | {
299 | "internalType": "uint256",
300 | "name": "timestamp",
301 | "type": "uint256"
302 | },
303 | {
304 | "internalType": "uint256",
305 | "name": "blocknum",
306 | "type": "uint256"
307 | }
308 | ],
309 | "stateMutability": "view",
310 | "type": "function"
311 | },
312 | {
313 | "inputs": [],
314 | "name": "DEFAULT_ADMIN_ROLE",
315 | "outputs": [
316 | {
317 | "internalType": "bytes32",
318 | "name": "",
319 | "type": "bytes32"
320 | }
321 | ],
322 | "stateMutability": "view",
323 | "type": "function"
324 | },
325 | {
326 | "inputs": [
327 | {
328 | "internalType": "bytes32",
329 | "name": "role",
330 | "type": "bytes32"
331 | }
332 | ],
333 | "name": "getRoleAdmin",
334 | "outputs": [
335 | {
336 | "internalType": "bytes32",
337 | "name": "",
338 | "type": "bytes32"
339 | }
340 | ],
341 | "stateMutability": "view",
342 | "type": "function"
343 | },
344 | {
345 | "inputs": [],
346 | "name": "GOVERN_ROLE",
347 | "outputs": [
348 | {
349 | "internalType": "bytes32",
350 | "name": "",
351 | "type": "bytes32"
352 | }
353 | ],
354 | "stateMutability": "view",
355 | "type": "function"
356 | },
357 | {
358 | "inputs": [
359 | {
360 | "internalType": "bytes32",
361 | "name": "role",
362 | "type": "bytes32"
363 | },
364 | {
365 | "internalType": "address",
366 | "name": "account",
367 | "type": "address"
368 | }
369 | ],
370 | "name": "hasRole",
371 | "outputs": [
372 | {
373 | "internalType": "bool",
374 | "name": "",
375 | "type": "bool"
376 | }
377 | ],
378 | "stateMutability": "view",
379 | "type": "function"
380 | },
381 | {
382 | "inputs": [],
383 | "name": "n2dusdsupply",
384 | "outputs": [
385 | {
386 | "internalType": "uint256",
387 | "name": "",
388 | "type": "uint256"
389 | }
390 | ],
391 | "stateMutability": "view",
392 | "type": "function"
393 | },
394 | {
395 | "inputs": [],
396 | "name": "owner",
397 | "outputs": [
398 | {
399 | "internalType": "address",
400 | "name": "",
401 | "type": "address"
402 | }
403 | ],
404 | "stateMutability": "view",
405 | "type": "function"
406 | },
407 | {
408 | "inputs": [],
409 | "name": "reserveContract",
410 | "outputs": [
411 | {
412 | "internalType": "address",
413 | "name": "",
414 | "type": "address"
415 | }
416 | ],
417 | "stateMutability": "view",
418 | "type": "function"
419 | },
420 | {
421 | "inputs": [],
422 | "name": "reserveCount",
423 | "outputs": [
424 | {
425 | "internalType": "uint256",
426 | "name": "",
427 | "type": "uint256"
428 | }
429 | ],
430 | "stateMutability": "view",
431 | "type": "function"
432 | },
433 | {
434 | "inputs": [
435 | {
436 | "internalType": "uint256",
437 | "name": "",
438 | "type": "uint256"
439 | }
440 | ],
441 | "name": "rsvList",
442 | "outputs": [
443 | {
444 | "internalType": "contract IERC20",
445 | "name": "colToken",
446 | "type": "address"
447 | }
448 | ],
449 | "stateMutability": "view",
450 | "type": "function"
451 | },
452 | {
453 | "inputs": [],
454 | "name": "stableColatAmount",
455 | "outputs": [
456 | {
457 | "internalType": "uint256",
458 | "name": "",
459 | "type": "uint256"
460 | }
461 | ],
462 | "stateMutability": "view",
463 | "type": "function"
464 | },
465 | {
466 | "inputs": [],
467 | "name": "stableColatPercent",
468 | "outputs": [
469 | {
470 | "internalType": "uint256",
471 | "name": "",
472 | "type": "uint256"
473 | }
474 | ],
475 | "stateMutability": "view",
476 | "type": "function"
477 | },
478 | {
479 | "inputs": [],
480 | "name": "stableColatPrice",
481 | "outputs": [
482 | {
483 | "internalType": "uint256",
484 | "name": "",
485 | "type": "uint256"
486 | }
487 | ],
488 | "stateMutability": "view",
489 | "type": "function"
490 | },
491 | {
492 | "inputs": [],
493 | "name": "supplyChangeCount",
494 | "outputs": [
495 | {
496 | "internalType": "uint256",
497 | "name": "",
498 | "type": "uint256"
499 | }
500 | ],
501 | "stateMutability": "view",
502 | "type": "function"
503 | },
504 | {
505 | "inputs": [
506 | {
507 | "internalType": "bytes4",
508 | "name": "interfaceId",
509 | "type": "bytes4"
510 | }
511 | ],
512 | "name": "supportsInterface",
513 | "outputs": [
514 | {
515 | "internalType": "bool",
516 | "name": "",
517 | "type": "bool"
518 | }
519 | ],
520 | "stateMutability": "view",
521 | "type": "function"
522 | },
523 | {
524 | "inputs": [],
525 | "name": "unstableColatAmount",
526 | "outputs": [
527 | {
528 | "internalType": "uint256",
529 | "name": "",
530 | "type": "uint256"
531 | }
532 | ],
533 | "stateMutability": "view",
534 | "type": "function"
535 | },
536 | {
537 | "inputs": [],
538 | "name": "unstableColPrice",
539 | "outputs": [
540 | {
541 | "internalType": "uint256",
542 | "name": "",
543 | "type": "uint256"
544 | }
545 | ],
546 | "stateMutability": "view",
547 | "type": "function"
548 | }
549 | ]
--------------------------------------------------------------------------------
/Final/Frontend/components/n2dusd-chart.js:
--------------------------------------------------------------------------------
1 | import { useState, useEffect } from "react";
2 | import { Line } from "react-chartjs-2";
3 | import {
4 | Chart as ChartJS,
5 | CategoryScale,
6 | PointElement,
7 | LineElement,
8 | LinearScale,
9 | Title,
10 | Tooltip,
11 | Legend,
12 | Filler,
13 | } from 'chart.js';
14 |
15 |
16 | const backend = "http://localhost:8082";
17 |
18 |
19 | ChartJS.register(
20 | CategoryScale,
21 | Filler,
22 | LinearScale,
23 | PointElement,
24 | LineElement,
25 | Title,
26 | Tooltip,
27 | Legend
28 | );
29 |
30 |
31 | export function N2dusdChart() {
32 | const [priceaction, getPrice] = useState([]);
33 | const [timeaction, getTime] = useState([]);
34 | const [status, colorStatus] = useState('');
35 | const [liveprice, getLivePrice] = useState('');
36 |
37 | useEffect(() => {
38 | const updateChart = setInterval(() => {
39 | getChart();
40 | }, 2000);
41 | return () => clearInterval(updateChart);
42 | }, [liveprice]);
43 |
44 |
45 | async function getChart() {
46 | let token = 'n2usd'
47 | const url = backend + "/getchartinfo";
48 | const config = {
49 | method: "POST",
50 | body: JSON.stringify({ token }),
51 | headers: {
52 | "content-type": "application/json",
53 | },
54 | };
55 | const response = await fetch(url, config);
56 | const output = await response.json();
57 | const pricearray = output.chartprice;
58 | const timearray = output.charttime;
59 | let price = []
60 | let time = []
61 | let i = 0
62 | for (i; i < pricearray.length; i++){
63 | let pricenum = (pricearray[i]).toFixed(4)
64 | price.push(pricenum)
65 | time.push(timearray[i])
66 | }
67 | price.reverse()
68 | time.reverse()
69 | getLivePrice(price[0])
70 | let previous = Number(price[1])
71 | let newvalue = Number(price[0])
72 | if (previous < newvalue) {
73 | colorStatus('#39ff1450')
74 | }
75 | else if (previous > newvalue){
76 | colorStatus('#dd00a980')
77 | }
78 | else
79 | colorStatus('#00c0f935')
80 | getPrice(price);
81 | getTime(time);
82 | }
83 |
84 | const data = {
85 | labels: [ timeaction[10],timeaction[9],timeaction[8], timeaction[7], timeaction[6], timeaction[5], timeaction[4], timeaction[3], timeaction[2], timeaction[1], timeaction[timeaction.length]],
86 | datasets: [
87 | {
88 | lineTension: 0.4,
89 | label: 'n2USD',
90 | borderColor: "#ffffff",
91 | borderWidth: 2,
92 | backgroundColor: status,
93 | borderDashOffset: 0.7,
94 | borderJoinStyle: 'round',
95 | pointBackgroundColor: "white",
96 | pointBorderWidth: 2,
97 | pointColor: 'black',
98 | pointHoverBackgroundColor: "rgba(75,192,192,1)",
99 | pointHoverBorderColor: "white",
100 | pointHoverBorderWidth: 1,
101 | pointRadius: 3,
102 | data: [priceaction[10],priceaction[9],priceaction[8], priceaction[7], priceaction[6], priceaction[5], priceaction[4], priceaction[3], priceaction[2], priceaction[1], priceaction[0]],
103 | fill: 'origin',
104 | }
105 | ],
106 | };
107 |
108 | const options = {
109 | plugins: {
110 | legend: {
111 | display: false,
112 | },
113 | },
114 | scales: {
115 | x: {
116 | grid: {
117 | display: false,
118 | drawBorder: false,
119 | },
120 | ticks:{
121 | display:true,
122 | beginAtZero: true,
123 | align: 'start',
124 | color: '#ffffff',
125 | font: {
126 | size: 14,
127 | family:'SF Pro Display'
128 | }
129 | }
130 | },
131 | y: {
132 | type: 'linear',
133 | position:'right',
134 | min: 0.8,
135 | max: 1.12,
136 | grid: {
137 | drawBorder:false,
138 | display: false,
139 | },
140 | ticks:{
141 | display: true,
142 | color: '#fff',
143 | font: {
144 | size: 16,
145 | family:'SF Pro Display'
146 | }
147 | }
148 | },
149 | },
150 | }
151 |
152 | return (
153 |
154 |
155 |
156 |
157 |
158 |
159 |
160 |
{liveprice}
161 |
162 |
163 |
164 |
165 |
7 | 
21 |
22 |