Tutorials > Build an NFT Marketplace
NFT Marketplace Part 4
Last Updated: 7th July 2023
We finish by using multi asset template.
- you have an unlimited number of NFT collections
- you have an unlimited quantity of items in each collection
To resume, you are producing any quantity of wine bottles on n collections
Keep your code from previous training or get the solution here
If you clone/fork a repo, rebuild in local
npm i cd ./app yarn install cd ..
Smart Contract
Point to the new template changing the first import line of nft.jsligo file to
#import "@ligo/fa/lib/fa2/asset/multi_asset.jsligo" "MULTIASSET"
It means you will change the namespace from SINGLEASSET to MULTIASSET everywhere (like this you are sure to use the correct library)
You will re-introduce the token_id as there are several collections now.
We can remove totalSupply and add two extra key sets owner_token_ids and token_ids
Change the storage definition
type offer = {
quantity : nat,
price : nat
};
type storage =
{
administrators: set<address>,
offers: map<[address,nat],offer>, //user sells an offer for a token_id
ledger: MULTIASSET.Ledger.t,
metadata: MULTIASSET.Metadata.t,
token_metadata: MULTIASSET.TokenMetadata.t,
operators: MULTIASSET.Operators.t,
owner_token_ids : set<[MULTIASSET.Storage.owner,MULTIASSET.Storage.token_id]>,
token_ids : set<MULTIASSET.Storage.token_id>
};
Update parameter type too
type parameter = | ["Mint", nat,nat,bytes,bytes,bytes,bytes] //token_id, quantity, name , description ,symbol , bytesipfsUrl | ["AddAdministrator" , address] | ["Buy", nat,nat, address] //buy token_id,quantity at a seller offer price | ["Sell", nat,nat, nat] //sell token_id,quantity at a price | ["Transfer", MULTIASSET.transfer] | ["Balance_of", MULTIASSET.balance_of] | ["Update_operators", MULTIASSET.update_operators];
Update mint function
const mint = (token_id : nat, quantity: nat, name : bytes, description : bytes,symbol : bytes, ipfsUrl: bytes, s: storage) : ret => {
if(quantity <= (0 as nat)) return failwith("0");
if(! Set.mem(Tezos.get_sender(), s.administrators)) return failwith("1");
const token_info: map<string, bytes> =
Map.literal(list([
["name", name],
["description",description],
["interfaces", (bytes `["TZIP-12"]`)],
["thumbnailUri", ipfsUrl],
["symbol",symbol],
["decimals", (bytes `0`)]
])) as map<string, bytes>;
const metadata : bytes = bytes
`{
"name":"FA2 NFT Marketplace",
"description":"Example of FA2 implementation",
"version":"0.0.1",
"license":{"name":"MIT"},
"authors":["Marigold<contact@marigold.dev>"],
"homepage":"https://marigold.dev",
"source":{
"tools":["Ligo"],
"location":"https://github.com/ligolang/contract-catalogue/tree/main/lib/fa2"},
"interfaces":["TZIP-012"],
"errors": [],
"views": []
}` ;
return [list([]) as list<operation>,
{...s,
ledger: Big_map.add([Tezos.get_sender(),token_id],quantity as nat,s.ledger) as MULTIASSET.Ledger.t,
metadata : Big_map.literal(list([["", bytes `tezos-storage:data`],["data", metadata]])),
token_metadata: Big_map.add(token_id, {token_id: token_id,token_info:token_info},s.token_metadata),
operators: Big_map.empty as MULTIASSET.Operators.t,
owner_token_ids : Set.add([Tezos.get_sender(),token_id],s.owner_token_ids),
token_ids: Set.add(token_id, s.token_ids)}]};
You also need to update sell function
const sell = (token_id : nat, quantity: nat, price: nat, s: storage) : ret => {
//check balance of seller
const sellerBalance = MULTIASSET.Ledger.get_for_user(s.ledger,Tezos.get_source(),token_id);
if(quantity > sellerBalance) return failwith("2");
//need to allow the contract itself to be an operator on behalf of the seller
const newOperators = MULTIASSET.Operators.add_operator(s.operators,Tezos.get_source(),Tezos.get_self_address(),token_id);
//DECISION CHOICE: if offer already exists, we just override it
return [list([]) as list<operation>,{...s,offers:Map.add([Tezos.get_source(),token_id],{quantity : quantity, price : price},s.offers),operators:newOperators}];
};
Same for the buy function
const buy = (token_id : nat, quantity: nat, seller: address, s: storage) : ret => {
//search for the offer
return match( Map.find_opt([seller,token_id],s.offers) , {
None : () => failwith("3"),
Some : (offer : offer) => {
//check if amount have been paid enough
if(Tezos.get_amount() < offer.price * (1 as mutez)) return failwith("5");
// prepare transfer of XTZ to seller
const op = Tezos.transaction(unit,offer.price * (1 as mutez),Tezos.get_contract_with_error(seller,"6"));
//transfer tokens from seller to buyer
let ledger = MULTIASSET.Ledger.decrease_token_amount_for_user(s.ledger,seller,token_id,quantity);
ledger = MULTIASSET.Ledger.increase_token_amount_for_user(ledger,Tezos.get_source(),token_id,quantity);
//update new offer
const newOffer = {...offer,quantity : abs(offer.quantity - quantity)};
return [list([op]) as list<operation>, {...s, offers : Map.update([seller,token_id],Some(newOffer),s.offers), ledger : ledger, owner_token_ids : Set.add([Tezos.get_source(),token_id],s.owner_token_ids) }];
}
});
};
and finally the main function
const main = ([p, s]: [parameter, storage]): ret =>
match(
p,
{
Mint: (p: [nat, nat, bytes, bytes, bytes, bytes]) =>
mint(p[0], p[1], p[2], p[3], p[4], p[5], s),
AddAdministrator: (p: address) => {
if (Set.mem(Tezos.get_sender(), s.administrators)) {
return [
list([]),
{ ...s, administrators: Set.add(p, s.administrators) }
]
} else {
return failwith("1")
}
},
Buy: (p: [nat, nat, address]) => buy(p[0], p[1], p[2], s),
Sell: (p: [nat, nat, nat]) => sell(p[0], p[1], p[2], s),
Transfer: (p: MULTIASSET.transfer) => {
const ret2: [list<operation>, MULTIASSET.storage] =
MULTIASSET.transfer(
[
p,
{
ledger: s.ledger,
metadata: s.metadata,
token_metadata: s.token_metadata,
operators: s.operators,
owner_token_ids: s.owner_token_ids,
token_ids: s.token_ids
}
]
);
return [
ret2[0],
{
...s,
ledger: ret2[1].ledger,
metadata: ret2[1].metadata,
token_metadata: ret2[1].token_metadata,
operators: ret2[1].operators,
owner_token_ids: ret2[1].owner_token_ids,
token_ids: ret2[1].token_ids
}
]
},
Balance_of: (p: MULTIASSET.balance_of) => {
const ret2: [list<operation>, MULTIASSET.storage] =
MULTIASSET.balance_of(
[
p,
{
ledger: s.ledger,
metadata: s.metadata,
token_metadata: s.token_metadata,
operators: s.operators,
owner_token_ids: s.owner_token_ids,
token_ids: s.token_ids
}
]
);
return [
ret2[0],
{
...s,
ledger: ret2[1].ledger,
metadata: ret2[1].metadata,
token_metadata: ret2[1].token_metadata,
operators: ret2[1].operators,
owner_token_ids: ret2[1].owner_token_ids,
token_ids: ret2[1].token_ids
}
]
},
Update_operators: (p: MULTIASSET.update_operators) => {
const ret2: [list<operation>, MULTIASSET.storage] =
MULTIASSET.update_ops(
[
p,
{
ledger: s.ledger,
metadata: s.metadata,
token_metadata: s.token_metadata,
operators: s.operators,
owner_token_ids: s.owner_token_ids,
token_ids: s.token_ids
}
]
);
return [
ret2[0],
{
...s,
ledger: ret2[1].ledger,
metadata: ret2[1].metadata,
token_metadata: ret2[1].token_metadata,
operators: ret2[1].operators,
owner_token_ids: ret2[1].owner_token_ids,
token_ids: ret2[1].token_ids
}
]
}
}
);
Change the initial storage to
#include "nft.jsligo"
const default_storage =
{
administrators: Set.literal(list(["tz1VSUr8wwNhLAzempoch5d6hLRiTh8Cjcjb" as address])) as set<address>,
offers: Map.empty as map<[address,nat],offer>,
ledger: Big_map.empty as MULTIASSET.Ledger.t,
metadata: Big_map.empty as MULTIASSET.Metadata.t,
token_metadata: Big_map.empty as MULTIASSET.TokenMetadata.t,
operators: Big_map.empty as MULTIASSET.Operators.t,
owner_token_ids : Set.empty as set<[MULTIASSET.Storage.owner,MULTIASSET.Storage.token_id]>,
token_ids : Set.empty as set<MULTIASSET.Storage.token_id>
}
;
Compile again and deploy to ghostnet
TAQ_LIGO_IMAGE=ligolang/ligo:0.64.2 taq compile nft.jsligo taq deploy nft.tz -e "testing"
┌──────────┬──────────────────────────────────────┬───────┬──────────────────┬────────────────────────────────┐ │ Contract │ Address │ Alias │ Balance In Mutez │ Destination │ ├──────────┼──────────────────────────────────────┼───────┼──────────────────┼────────────────────────────────┤ │ nft.tz │ KT1QfMdyRq56xLBiofFTjLhkq5VCdj9PwC25 │ nft │ 0 │ https://ghostnet.ecadinfra.com │ └──────────┴──────────────────────────────────────┴───────┴──────────────────┴────────────────────────────────┘
** Hooray! We have finished the smart contract (backend) **
NFT Marketplace front
Generate Typescript classes and go to the frontend to run the server
taq generate types ./app/src cd ./app yarn install yarn run start
Update in App.tsx
We forget about token_id == 0 and fetch back all tokens. Replace the function refreshUserContextOnPageReload with the following content
const refreshUserContextOnPageReload = async () => {
console.log("refreshUserContext");
//CONTRACT
try {
let c = await Tezos.contract.at(nftContractAddress, tzip12);
console.log("nftContractAddress", nftContractAddress);
let nftContrat: NftWalletType = await Tezos.wallet.at<NftWalletType>(
nftContractAddress
);
const storage = (await nftContrat.storage()) as Storage;
await Promise.all(
storage.token_ids.map(async (token_id: nat) => {
let tokenMetadata: TZIP21TokenMetadata = (await c
.tzip12()
.getTokenMetadata(token_id.toNumber())) as TZIP21TokenMetadata;
nftContratTokenMetadataMap.set(token_id.toNumber(), tokenMetadata);
})
);
setNftContratTokenMetadataMap(new Map(nftContratTokenMetadataMap)); //new Map to force refresh
setNftContrat(nftContrat);
setStorage(storage);
} catch (error) {
console.log("error refreshing nft contract: ", error);
}
//USER
const activeAccount = await wallet.client.getActiveAccount();
if (activeAccount) {
setUserAddress(activeAccount.address);
const balance = await Tezos.tz.getBalance(activeAccount.address);
setUserBalance(balance.toNumber());
}
console.log("refreshUserContext ended.");
};
Update in MintPage.tsx
Just update the mint call and add the missing quantity, and add back the token_id counter incrementer
import {
AddCircleOutlined,
Close,
KeyboardArrowLeft,
KeyboardArrowRight,
} from "@mui/icons-material";
import OpenWithIcon from "@mui/icons-material/OpenWith";
import {
Box,
Button,
CardHeader,
CardMedia,
MobileStepper,
Stack,
SwipeableDrawer,
TextField,
Toolbar,
useMediaQuery,
} from "@mui/material";
import Card from "@mui/material/Card";
import CardContent from "@mui/material/CardContent";
import Paper from "@mui/material/Paper";
import Typography from "@mui/material/Typography";
import { char2Bytes } from "@taquito/utils";
import { BigNumber } from "bignumber.js";
import { useFormik } from "formik";
import { useSnackbar } from "notistack";
import React, { useEffect, useState } from "react";
import SwipeableViews from "react-swipeable-views";
import * as yup from "yup";
import { TZIP21TokenMetadata, UserContext, UserContextType } from "./App";
import { TransactionInvalidBeaconError } from "./TransactionInvalidBeaconError";
import { address, bytes, nat } from "./type-aliases";
export default function MintPage() {
const {
userAddress,
nftContrat,
refreshUserContextOnPageReload,
nftContratTokenMetadataMap,
storage,
} = React.useContext(UserContext) as UserContextType;
const { enqueueSnackbar } = useSnackbar();
const [pictureUrl, setPictureUrl] = useState<string>("");
const [file, setFile] = useState<File | null>(null);
const [activeStep, setActiveStep] = React.useState(0);
const handleNext = () => {
setActiveStep((prevActiveStep) => prevActiveStep + 1);
};
const handleBack = () => {
setActiveStep((prevActiveStep) => prevActiveStep - 1);
};
const handleStepChange = (step: number) => {
setActiveStep(step);
};
const validationSchema = yup.object({
name: yup.string().required("Name is required"),
description: yup.string().required("Description is required"),
symbol: yup.string().required("Symbol is required"),
quantity: yup
.number()
.required("Quantity is required")
.positive("ERROR: The number must be greater than 0!"),
});
const formik = useFormik({
initialValues: {
name: "",
description: "",
token_id: 0,
symbol: "WINE",
quantity: 1,
} as TZIP21TokenMetadata & { quantity: number },
validationSchema: validationSchema,
onSubmit: (values) => {
mint(values);
},
});
//open mint drawer if admin
useEffect(() => {
if (storage && storage!.administrators.indexOf(userAddress! as address) < 0)
setFormOpen(false);
else setFormOpen(true);
}, [userAddress]);
useEffect(() => {
(async () => {
if (storage && storage.token_ids.length > 0) {
formik.setFieldValue("token_id", storage?.token_ids.length);
}
})();
}, [storage?.token_ids]);
const mint = async (
newTokenDefinition: TZIP21TokenMetadata & { quantity: number }
) => {
try {
//IPFS
if (file) {
const formData = new FormData();
formData.append("file", file);
const requestHeaders: HeadersInit = new Headers();
requestHeaders.set(
"pinata_api_key",
`${process.env.REACT_APP_PINATA_API_KEY}`
);
requestHeaders.set(
"pinata_secret_api_key",
`${process.env.REACT_APP_PINATA_API_SECRET}`
);
const resFile = await fetch(
"https://api.pinata.cloud/pinning/pinFileToIPFS",
{
method: "post",
body: formData,
headers: requestHeaders,
}
);
const responseJson = await resFile.json();
console.log("responseJson", responseJson);
const thumbnailUri = `ipfs://${responseJson.IpfsHash}`;
setPictureUrl(
`https://gateway.pinata.cloud/ipfs/${responseJson.IpfsHash}`
);
const op = await nftContrat!.methods
.mint(
new BigNumber(newTokenDefinition.token_id) as nat,
new BigNumber(newTokenDefinition.quantity) as nat,
char2Bytes(newTokenDefinition.name!) as bytes,
char2Bytes(newTokenDefinition.description!) as bytes,
char2Bytes(newTokenDefinition.symbol!) as bytes,
char2Bytes(thumbnailUri) as bytes
)
.send();
//close directly the form
setFormOpen(false);
enqueueSnackbar(
"Wine collection is minting ... it will be ready on next block, wait for the confirmation message before minting another collection",
{ variant: "info" }
);
await op.confirmation(2);
enqueueSnackbar("Wine collection minted", { variant: "success" });
refreshUserContextOnPageReload(); //force all app to refresh the context
}
} catch (error) {
console.table(`Error: ${JSON.stringify(error, null, 2)}`);
let tibe: TransactionInvalidBeaconError =
new TransactionInvalidBeaconError(error);
enqueueSnackbar(tibe.data_message, {
variant: "error",
autoHideDuration: 10000,
});
}
};
const [formOpen, setFormOpen] = useState<boolean>(false);
const toggleDrawer =
(open: boolean) => (event: React.KeyboardEvent | React.MouseEvent) => {
if (
event.type === "keydown" &&
((event as React.KeyboardEvent).key === "Tab" ||
(event as React.KeyboardEvent).key === "Shift")
) {
return;
}
setFormOpen(open);
};
const isTablet = useMediaQuery("(min-width:600px)");
return (
<Paper>
{storage ? (
<Button
disabled={storage.administrators.indexOf(userAddress! as address) < 0}
sx={{
p: 1,
position: "absolute",
right: "0",
display: formOpen ? "none" : "block",
zIndex: 1,
}}
onClick={toggleDrawer(!formOpen)}
>
{" Mint Form " +
(storage!.administrators.indexOf(userAddress! as address) < 0
? " (You are not admin)"
: "")}
<OpenWithIcon />
</Button>
) : (
""
)}
<SwipeableDrawer
onClose={toggleDrawer(false)}
onOpen={toggleDrawer(true)}
anchor="right"
open={formOpen}
variant="temporary"
>
<Toolbar
sx={
isTablet
? { marginTop: "0", marginRight: "0" }
: { marginTop: "35px", marginRight: "125px" }
}
/>
<Box
sx={{
width: isTablet ? "40vw" : "60vw",
borderColor: "text.secondary",
borderStyle: "solid",
borderWidth: "1px",
height: "calc(100vh - 64px)",
}}
>
<Button
sx={{
position: "absolute",
right: "0",
display: !formOpen ? "none" : "block",
}}
onClick={toggleDrawer(!formOpen)}
>
<Close />
</Button>
<form onSubmit={formik.handleSubmit}>
<Stack spacing={2} margin={2} alignContent={"center"}>
<Typography variant="h5">Mint a new collection</Typography>
<TextField
id="standard-basic"
name="token_id"
label="token_id"
value={formik.values.token_id}
disabled
variant="filled"
/>
<TextField
id="standard-basic"
name="name"
label="name"
required
value={formik.values.name}
onChange={formik.handleChange}
error={formik.touched.name && Boolean(formik.errors.name)}
helperText={formik.touched.name && formik.errors.name}
variant="filled"
/>
<TextField
id="standard-basic"
name="symbol"
label="symbol"
required
value={formik.values.symbol}
onChange={formik.handleChange}
error={formik.touched.symbol && Boolean(formik.errors.symbol)}
helperText={formik.touched.symbol && formik.errors.symbol}
variant="filled"
/>
<TextField
id="standard-basic"
name="description"
label="description"
required
multiline
minRows={2}
value={formik.values.description}
onChange={formik.handleChange}
error={
formik.touched.description &&
Boolean(formik.errors.description)
}
helperText={
formik.touched.description && formik.errors.description
}
variant="filled"
/>
<TextField
type="number"
id="standard-basic"
name="quantity"
label="quantity"
required
value={formik.values.quantity}
onChange={formik.handleChange}
error={
formik.touched.quantity && Boolean(formik.errors.quantity)
}
helperText={formik.touched.quantity && formik.errors.quantity}
variant="filled"
/>
{pictureUrl ? (
<img height={100} width={100} src={pictureUrl} />
) : (
""
)}
<Button variant="contained" component="label" color="primary">
<AddCircleOutlined />
Upload an image
<input
type="file"
hidden
name="data"
onChange={(e: React.ChangeEvent<HTMLInputElement>) => {
const data = e.target.files ? e.target.files[0] : null;
if (data) {
setFile(data);
}
e.preventDefault();
}}
/>
</Button>
<Button variant="contained" type="submit">
Mint
</Button>
</Stack>
</form>
</Box>
</SwipeableDrawer>
<Typography variant="h5">Mint your wine collection</Typography>
{nftContratTokenMetadataMap.size != 0 ? (
<Box sx={{ width: "70vw" }}>
<SwipeableViews
axis="x"
index={activeStep}
onChangeIndex={handleStepChange}
enableMouseEvents
>
{Array.from(nftContratTokenMetadataMap!.entries()).map(
([token_id, token]) => (
<Card
sx={{
display: "block",
maxWidth: "80vw",
overflow: "hidden",
}}
key={token_id.toString()}
>
<CardHeader
titleTypographyProps={
isTablet ? { fontSize: "1.5em" } : { fontSize: "1em" }
}
title={token.name}
/>
<CardMedia
sx={
isTablet
? {
width: "auto",
marginLeft: "33%",
maxHeight: "50vh",
}
: { width: "100%", maxHeight: "40vh" }
}
component="img"
image={token.thumbnailUri?.replace(
"ipfs://",
"https://gateway.pinata.cloud/ipfs/"
)}
/>
<CardContent>
<Box>
<Typography>{"ID : " + token_id}</Typography>
<Typography>{"Symbol : " + token.symbol}</Typography>
<Typography>
{"Description : " + token.description}
</Typography>
</Box>
</CardContent>
</Card>
)
)}
</SwipeableViews>
<MobileStepper
variant="text"
steps={Array.from(nftContratTokenMetadataMap!.entries()).length}
position="static"
activeStep={activeStep}
nextButton={
<Button
size="small"
onClick={handleNext}
disabled={
activeStep ===
Array.from(nftContratTokenMetadataMap!.entries()).length - 1
}
>
Next
<KeyboardArrowRight />
</Button>
}
backButton={
<Button
size="small"
onClick={handleBack}
disabled={activeStep === 0}
>
<KeyboardArrowLeft />
Back
</Button>
}
/>
</Box>
) : (
<Typography sx={{ py: "2em" }} variant="h4">
Sorry, there is not NFT yet, you need to mint bottles first
</Typography>
)}
</Paper>
);
}
Update in OffersPage.tsx
Copy the content below, and paste it to OffersPage.tsx
import { InfoOutlined } from "@mui/icons-material";
import SellIcon from "@mui/icons-material/Sell";
import {
Box,
Button,
Card,
CardActions,
CardContent,
CardHeader,
CardMedia,
ImageList,
InputAdornment,
Pagination,
TextField,
Tooltip,
Typography,
useMediaQuery,
} from "@mui/material";
import Paper from "@mui/material/Paper";
import BigNumber from "bignumber.js";
import { useFormik } from "formik";
import { useSnackbar } from "notistack";
import React, { Fragment, useEffect, useState } from "react";
import * as yup from "yup";
import { UserContext, UserContextType } from "./App";
import ConnectButton from "./ConnectWallet";
import { TransactionInvalidBeaconError } from "./TransactionInvalidBeaconError";
import { address, nat } from "./type-aliases";
const itemPerPage: number = 6;
const validationSchema = yup.object({
price: yup
.number()
.required("Price is required")
.positive("ERROR: The number must be greater than 0!"),
quantity: yup
.number()
.required("Quantity is required")
.positive("ERROR: The number must be greater than 0!"),
});
type Offer = {
price: nat;
quantity: nat;
};
export default function OffersPage() {
const [selectedTokenId, setSelectedTokenId] = React.useState<number>(0);
const [currentPageIndex, setCurrentPageIndex] = useState<number>(1);
let [offersTokenIDMap, setOffersTokenIDMap] = React.useState<Map<nat, Offer>>(
new Map()
);
let [ledgerTokenIDMap, setLedgerTokenIDMap] = React.useState<Map<nat, nat>>(
new Map()
);
const {
nftContrat,
nftContratTokenMetadataMap,
userAddress,
storage,
refreshUserContextOnPageReload,
Tezos,
setUserAddress,
setUserBalance,
wallet,
} = React.useContext(UserContext) as UserContextType;
const { enqueueSnackbar } = useSnackbar();
const formik = useFormik({
initialValues: {
price: 0,
quantity: 1,
},
validationSchema: validationSchema,
onSubmit: (values) => {
console.log("onSubmit: (values)", values, selectedTokenId);
sell(selectedTokenId, values.quantity, values.price);
},
});
const initPage = async () => {
if (storage) {
console.log("context is not empty, init page now");
ledgerTokenIDMap = new Map();
offersTokenIDMap = new Map();
await Promise.all(
storage.owner_token_ids.map(async (element) => {
if (element[0] === userAddress) {
const ownerBalance = await storage.ledger.get({
0: userAddress as address,
1: element[1],
});
if (ownerBalance != BigNumber(0))
ledgerTokenIDMap.set(element[1], ownerBalance);
const ownerOffers = await storage.offers.get({
0: userAddress as address,
1: element[1],
});
if (ownerOffers && ownerOffers.quantity != BigNumber(0))
offersTokenIDMap.set(element[1], ownerOffers);
console.log(
"found for " +
element[0] +
" on token_id " +
element[1] +
" with balance " +
ownerBalance
);
} else {
console.log("skip to next owner");
}
})
);
setLedgerTokenIDMap(new Map(ledgerTokenIDMap)); //force refresh
setOffersTokenIDMap(new Map(offersTokenIDMap)); //force refresh
console.log("ledgerTokenIDMap", ledgerTokenIDMap);
} else {
console.log("context is empty, wait for parent and retry ...");
}
};
useEffect(() => {
(async () => {
console.log("after a storage changed");
await initPage();
})();
}, [storage]);
useEffect(() => {
(async () => {
console.log("on Page init");
await initPage();
})();
}, []);
const sell = async (token_id: number, quantity: number, price: number) => {
try {
const op = await nftContrat?.methods
.sell(
BigNumber(token_id) as nat,
BigNumber(quantity) as nat,
BigNumber(price * 1000000) as nat //to mutez
)
.send();
await op?.confirmation(2);
enqueueSnackbar(
"Wine collection (token_id=" +
token_id +
") offer for " +
quantity +
" units at price of " +
price +
" XTZ",
{ variant: "success" }
);
refreshUserContextOnPageReload(); //force all app to refresh the context
} catch (error) {
console.table(`Error: ${JSON.stringify(error, null, 2)}`);
let tibe: TransactionInvalidBeaconError =
new TransactionInvalidBeaconError(error);
enqueueSnackbar(tibe.data_message, {
variant: "error",
autoHideDuration: 10000,
});
}
};
const isDesktop = useMediaQuery("(min-width:1100px)");
const isTablet = useMediaQuery("(min-width:600px)");
return (
<Paper>
<Typography style={{ paddingBottom: "10px" }} variant="h5">
Sell my bottles
</Typography>
{ledgerTokenIDMap && ledgerTokenIDMap.size != 0 ? (
<Fragment>
<Pagination
page={currentPageIndex}
onChange={(_, value) => setCurrentPageIndex(value)}
count={Math.ceil(
Array.from(ledgerTokenIDMap.entries()).length / itemPerPage
)}
showFirstButton
showLastButton
/>
<ImageList
cols={isDesktop ? itemPerPage / 2 : isTablet ? itemPerPage / 3 : 1}
>
{Array.from(ledgerTokenIDMap.entries())
.filter((_, index) =>
index >= currentPageIndex * itemPerPage - itemPerPage &&
index < currentPageIndex * itemPerPage
? true
: false
)
.map(([token_id, balance]) => (
<Card key={token_id + "-" + token_id.toString()}>
<CardHeader
avatar={
<Tooltip
title={
<Box>
<Typography>
{" "}
{"ID : " + token_id.toString()}{" "}
</Typography>
<Typography>
{"Description : " +
nftContratTokenMetadataMap.get(
token_id.toNumber()
)?.description}
</Typography>
</Box>
}
>
<InfoOutlined />
</Tooltip>
}
title={
nftContratTokenMetadataMap.get(token_id.toNumber())?.name
}
/>
<CardMedia
sx={{ width: "auto", marginLeft: "33%" }}
component="img"
height="100px"
image={nftContratTokenMetadataMap
.get(token_id.toNumber())
?.thumbnailUri?.replace(
"ipfs://",
"https://gateway.pinata.cloud/ipfs/"
)}
/>
<CardContent>
<Box>
<Typography variant="body2">
{"Owned : " + balance.toNumber()}
</Typography>
<Typography variant="body2">
{offersTokenIDMap.get(token_id)
? "Traded : " +
offersTokenIDMap.get(token_id)?.quantity +
" (price : " +
offersTokenIDMap
.get(token_id)
?.price.dividedBy(1000000) +
" Tz/b)"
: ""}
</Typography>
</Box>
</CardContent>
<CardActions>
{!userAddress ? (
<Box marginLeft="5vw">
<ConnectButton
Tezos={Tezos}
nftContratTokenMetadataMap={
nftContratTokenMetadataMap
}
setUserAddress={setUserAddress}
setUserBalance={setUserBalance}
wallet={wallet}
/>
</Box>
) : (
<form
style={{ width: "100%" }}
onSubmit={(values) => {
setSelectedTokenId(token_id.toNumber());
formik.handleSubmit(values);
}}
>
<span>
<TextField
type="number"
sx={{ width: "40%" }}
name="price"
label="price/bottle"
placeholder="Enter a price"
variant="filled"
value={formik.values.price}
onChange={formik.handleChange}
error={
formik.touched.price &&
Boolean(formik.errors.price)
}
helperText={
formik.touched.price && formik.errors.price
}
/>
<TextField
sx={{
width: "60%",
bottom: 0,
position: "relative",
}}
type="number"
label="quantity"
name="quantity"
placeholder="Enter a quantity"
variant="filled"
value={formik.values.quantity}
onChange={formik.handleChange}
error={
formik.touched.quantity &&
Boolean(formik.errors.quantity)
}
helperText={
formik.touched.quantity && formik.errors.quantity
}
InputProps={{
inputProps: { min: 0, max: balance.toNumber() },
endAdornment: (
<InputAdornment position="end">
<Button
type="submit"
aria-label="add to favorites"
>
<SellIcon /> Sell
</Button>
</InputAdornment>
),
}}
/>
</span>
</form>
)}
</CardActions>
</Card>
))}{" "}
</ImageList>
</Fragment>
) : (
<Typography sx={{ py: "2em" }} variant="h4">
Sorry, you don't own any bottles, buy or mint some first
</Typography>
)}
</Paper>
);
}
Update in WineCataloguePage.tsx
Copy the content below, and paste it to WineCataloguePage.tsx
import { InfoOutlined } from "@mui/icons-material";
import ShoppingCartIcon from "@mui/icons-material/ShoppingCart";
import {
Box,
Button,
Card,
CardActions,
CardContent,
CardHeader,
CardMedia,
ImageList,
InputAdornment,
Pagination,
TextField,
Tooltip,
useMediaQuery,
} from "@mui/material";
import Paper from "@mui/material/Paper";
import Typography from "@mui/material/Typography";
import BigNumber from "bignumber.js";
import { useFormik } from "formik";
import { useSnackbar } from "notistack";
import React, { Fragment, useState } from "react";
import * as yup from "yup";
import { UserContext, UserContextType } from "./App";
import ConnectButton from "./ConnectWallet";
import { TransactionInvalidBeaconError } from "./TransactionInvalidBeaconError";
import { address, nat } from "./type-aliases";
const itemPerPage: number = 6;
type OfferEntry = [{ 0: address; 1: nat }, Offer];
type Offer = {
price: nat;
quantity: nat;
};
const validationSchema = yup.object({
quantity: yup
.number()
.required("Quantity is required")
.positive("ERROR: The number must be greater than 0!"),
});
export default function WineCataloguePage() {
const {
Tezos,
nftContratTokenMetadataMap,
setUserAddress,
setUserBalance,
wallet,
userAddress,
nftContrat,
refreshUserContextOnPageReload,
storage,
} = React.useContext(UserContext) as UserContextType;
const [selectedOfferEntry, setSelectedOfferEntry] =
React.useState<OfferEntry | null>(null);
const formik = useFormik({
initialValues: {
quantity: 1,
},
validationSchema: validationSchema,
onSubmit: (values) => {
console.log("onSubmit: (values)", values, selectedOfferEntry);
buy(values.quantity, selectedOfferEntry!);
},
});
const { enqueueSnackbar } = useSnackbar();
const [currentPageIndex, setCurrentPageIndex] = useState<number>(1);
const buy = async (quantity: number, selectedOfferEntry: OfferEntry) => {
try {
const op = await nftContrat?.methods
.buy(
selectedOfferEntry[0][1],
BigNumber(quantity) as nat,
selectedOfferEntry[0][0]
)
.send({
amount: quantity * selectedOfferEntry[1].price.toNumber(),
mutez: true,
});
await op?.confirmation(2);
enqueueSnackbar(
"Bought " +
quantity +
" unit of Wine collection (token_id:" +
selectedOfferEntry[0][1] +
")",
{
variant: "success",
}
);
refreshUserContextOnPageReload(); //force all app to refresh the context
} catch (error) {
console.table(`Error: ${JSON.stringify(error, null, 2)}`);
let tibe: TransactionInvalidBeaconError =
new TransactionInvalidBeaconError(error);
enqueueSnackbar(tibe.data_message, {
variant: "error",
autoHideDuration: 10000,
});
}
};
const isDesktop = useMediaQuery("(min-width:1100px)");
const isTablet = useMediaQuery("(min-width:600px)");
return (
<Paper>
<Typography style={{ paddingBottom: "10px" }} variant="h5">
Wine catalogue
</Typography>
{storage?.offers && storage?.offers.size != 0 ? (
<Fragment>
<Pagination
page={currentPageIndex}
onChange={(_, value) => setCurrentPageIndex(value)}
count={Math.ceil(
Array.from(storage?.offers.entries()).filter(([key, offer]) =>
offer.quantity.isGreaterThan(0)
).length / itemPerPage
)}
showFirstButton
showLastButton
/>
<ImageList
cols={isDesktop ? itemPerPage / 2 : isTablet ? itemPerPage / 3 : 1}
>
{Array.from(storage?.offers.entries())
.filter(([key, offer]) => offer.quantity.isGreaterThan(0))
.filter((_, index) =>
index >= currentPageIndex * itemPerPage - itemPerPage &&
index < currentPageIndex * itemPerPage
? true
: false
)
.map(([key, offer]) => (
<Card key={key[0] + "-" + key[1].toString()}>
<CardHeader
avatar={
<Tooltip
title={
<Box>
<Typography>
{" "}
{"ID : " + key[1].toString()}{" "}
</Typography>
<Typography>
{"Description : " +
nftContratTokenMetadataMap.get(
key[1].toNumber()
)?.description}
</Typography>
<Typography>{"Seller : " + key[0]} </Typography>
</Box>
}
>
<InfoOutlined />
</Tooltip>
}
title={
nftContratTokenMetadataMap.get(key[1].toNumber())?.name
}
/>
<CardMedia
sx={{ width: "auto", marginLeft: "33%" }}
component="img"
height="100px"
image={nftContratTokenMetadataMap
.get(key[1].toNumber())
?.thumbnailUri?.replace(
"ipfs://",
"https://gateway.pinata.cloud/ipfs/"
)}
/>
<CardContent>
<Box>
<Typography variant="body2">
{" "}
{"Price : " +
offer.price.dividedBy(1000000) +
" XTZ/bottle"}
</Typography>
<Typography variant="body2">
{"Available units : " + offer.quantity}
</Typography>
</Box>
</CardContent>
<CardActions>
{!userAddress ? (
<Box marginLeft="5vw">
<ConnectButton
Tezos={Tezos}
nftContratTokenMetadataMap={
nftContratTokenMetadataMap
}
setUserAddress={setUserAddress}
setUserBalance={setUserBalance}
wallet={wallet}
/>
</Box>
) : (
<form
style={{ width: "100%" }}
onSubmit={(values) => {
setSelectedOfferEntry([key, offer]);
formik.handleSubmit(values);
}}
>
<TextField
type="number"
sx={{ bottom: 0, position: "relative" }}
fullWidth
name="quantity"
label="quantity"
placeholder="Enter a quantity"
variant="filled"
value={formik.values.quantity}
onChange={formik.handleChange}
error={
formik.touched.quantity &&
Boolean(formik.errors.quantity)
}
helperText={
formik.touched.quantity && formik.errors.quantity
}
InputProps={{
inputProps: { min: 0, max: offer.quantity },
endAdornment: (
<InputAdornment position="end">
<Button
type="submit"
aria-label="add to favorites"
>
<ShoppingCartIcon /> BUY
</Button>
</InputAdornment>
),
}}
/>
</form>
)}
</CardActions>
</Card>
))}
</ImageList>
</Fragment>
) : (
<Typography sx={{ py: "2em" }} variant="h4">
Sorry, there is not NFT to buy yet, you need to mint or sell bottles
first
</Typography>
)}
</Paper>
);
}
Let's play
- Connect with your wallet and choose
aliceaccount (or one of the administrators you set on the smart contract earlier). You are redirected to the Administration/mint page as there is no NFT minted yet - Create an asset, for example :
name: Saint Emilion - Franc la Rosesymbol: SEMILdescription: Grand cru 2007quantity: 1000
- Click on
Upload an imageand select a bottle picture on your computer - Click on the Mint button
Your picture will be pushed to IPFS and will be displayed, then your wallet will ask you to sign the mint operation.
- Confirm operation
- Wait less than 1 minute to get the confirmation notification, the page will be automatically refreshed
Now you can see the Trading menu and the Bottle offers sub-menu
Click on the sub-menu entry
You are the owner of this bottle so you can create an offer on it
- Enter a quantity
- Enter a price offer
- Click on
SELLbutton - Wait a bit for the confirmation, then once automatically refreshed you have an offer attached to your NFT!
For buying,
- Disconnect from your user and connect with another account (who has enough XTZ to buy at least 1 bottle)
- The buyer will see that Alice is selling some bottles from the unique collection
- Buy some bottles while clicking on the
BUYbutton - Wait for the confirmation, then the offer is updated on the market (depending on how many bottles you bought)
- Click on the
bottle offerssubmenu - You are now the owner of some bottles, you can resell a part of it at your own price, etc ...
To add more collections, go to the Mint page and repeat the process.
Conclusion
You are able to use any NFT template from the Ligo library.
Congratulations!