Hey
I’ve changed my JavaScript a little and now I’m getting this error but I have defined the from address.
Javascript
const serverUrl = "https://vxnx9mu8hh9u.usemoralis.com:2053/server";
const appId = "z75nQcm3wcoe9xd9MK8c6Lye9akXiMw1QldhfvE6";
const TOKEN_CONTRACT_ADDRESS = "0x99495223da7dFE1A14d5224Bc90bad4a01F0e58A";
const MARKETPLACE_CONTRACT_ADDRESS = "0xb94bb1b53ab68465cEB10b89E3B67Eae2Db003BA";
Moralis.start({ serverUrl, appId });
init = async () => {
hideElement(userItemsSection);
hideElement(userInfo);
hideElement(createItemForm);
await Moralis.enableWeb3();
web3 = new Web3(Moralis.provider);
tokenContract = new web3.eth.Contract(tokenContractAbi, TOKEN_CONTRACT_ADDRESS);
marketplaceContract = new web3.eth.Contract(marketplaceContractAbi, MARKETPLACE_CONTRACT_ADDRESS);
initUser();
loadUserItems();
}
initUser = async () => {
if (await Moralis.User.current()){
hideElement(userConnectButton);
showElement(userProfileButton);
showElement(openCreateItemButton);
showElement(openUserItemsButton);
loadItems();
}else{
showElement(userConnectButton);
hideElement(userProfileButton);
hideElement(openCreateItemButton);
hideElement(createItemForm);
hideElement(openUserItemsButton);
}
}
login = async () => {
try {
await Moralis.authenticate();
initUser();
} catch (error) {
alert(error)
}
}
logout = async () => {
await Moralis.User.logOut();
hideElement(userInfo);
initUser();
}
openUserInfo = async () => {
user = await Moralis.User.current();
if (user){
const email = user.get('email');
if(email){
userEmailField.value = email;
}else{
userEmailField.value = "";
}
userNameField.value = user.get('username');
const userAvatar = user.get('avatar');
if(userAvatar){
userAvatarImg.src = userAvatar.url();
showElement(userAvatarImg);
}else{
hideElement(userAvatarImg);
}
showElement(userInfo);
}else{
login();
}
}
saveUserInfo = async () => {
user.set('email', userEmailField.value);
user.set('username', userNameField.value);
if (userAvatarFile.files.length > 0) {
const avatar = new Moralis.File("avatar1.jpg", userAvatarFile.files[0]);
user.set('avatar', avatar);
}
await user.save();
alert("User info saved successfully!");
openUserInfo();
}
onItemAdded = async (item) => {
const params = {uid: `${item.attributes.uid}`};
const addedItem = await Moralis.Cloud.run('getItem', params);
if (addedItem){
user = await Moralis.User.current();
if (user){
if (user.get('accounts').includes(addedItem.ownerOf)){
const userItemListing = document.getElementById(`user-item-${item.tokenObjectId}`);
if (userItemListing) userItemListing.parentNode.removeChild(userItemListing);
getAndRenderItemData(addedItem, renderUserItem);
return;
}
}
getAndRenderItemData(addedItem, renderItem);
}
}
loadUserItems = async () => {
const params = { token_address: TOKEN_CONTRACT_ADDRESS };
const ownedItems = await Moralis.Cloud.run("getUserItems", params);
ownedItems.forEach(item => {
const userItemListing = document.getElementById(`user-item-${item.tokenObjectId}`);
if (userItemListing) return;
getAndRenderItemData(item, renderUserItem);
});
}
loadItems = async () => {
const params = { token_address: TOKEN_CONTRACT_ADDRESS };
const items = await Moralis.Cloud.run("getItems", params);
user = await Moralis.User.current();
items.forEach(item => {
if(user){
if(user.attributes.accounts.includes(item.ownerOf)) {
const userItemListing = document.getElementById(`user-item-${item.tokenObjectId}`);
if (userItemListing) userItemListing.parentNode.removeChild(userItemListing);
getAndRenderItemData(item, renderUserItem);
return;
}
}
getAndRenderItemData(item, renderItem);
});
}
createItem = async () => {
if (createItemFile.files.length == 0){
alert("Please select a file!");
return;
} else if (createItemNameField.value.length == 0){
alert("Please give the item a name!");
return;
}
const nftFile = new Moralis.File("nftFile.jpg",createItemFile.files[0]);
await nftFile.saveIPFS();
const nftFilePath = nftFile.ipfs();
const nftFileHash = nftFile.hash();
const metadata = {
name: createItemNameField.value,
description: createItemDescriptionField.value,
image: nftFilePath,
};
const nftFileMetadataFile = new Moralis.File("metadata.json", {base64 : btoa(JSON.stringify(metadata))});
await nftFileMetadataFile.saveIPFS();
const nftFileMetadataFilePath = nftFileMetadataFile.ipfs();
const nftFileMetadataFileHash = nftFileMetadataFile.hash();
const nftId = await mintNFT(nftFileMetadataFilePath);
const Item = Moralis.Object.extend("Item");
const item = new Item();
item.set('name', createItemNameField.value);
item.set('description', createItemDescriptionField.value);
item.set('nftFilePath', nftFilePath);
item.set('nftFileHash', nftFileHash);
item.set('metadataFilePath', nftFileMetadataFilePath);
item.set('metadataFileHash', nftFileMetadataFileHash);
item.set('nftId', nftId);
item.set('nftContractAddress', TOKEN_CONTRACT_ADDRESS);
await item.save();
console.log(item);
user = await Moralis.User.current();
const userAddress = user.get("ethaddress");
switch(createItemStatusField.value){
case "0":
return;
case "1":
await ensureMarketplaceIsApproved(nftId, TOKEN_CONTRACT_ADDRESS);
await marketplaceContract.methods.addItemToMarket(nftId, TOKEN_CONTRACT_ADDRESS, createItemPriceField.value).send({from: userAddress});
break;
case "2":
alert("Not yet supported!");
return;
}
buyItem = async (item) => {
user = await Moralis.User.current();
const userAddress = user.get("ethAddress")
if(!user)
{
login();
return;
}
await marketplaceContract.methods.buyItem(item.uid).send({from: user.get("ethAddress"), value: item.askingPrice});
}
}
initTemplate = (id) => {
const template = document.getElementById(id);
template.id = "";
template.parentNode.removeChild(template);
return template;
}
renderUserItem = (item) => {
const userItem = userItemTemplate.cloneNode(true);
userItem.getElementsByTagName("img")[0].src = item.image;
userItem.getElementsByTagName("img")[0].alt = item.name;
userItem.getElementsByTagName("h5")[0].innerText = item.name;
userItem.getElementsByTagName("p")[0].innerText = item.description;
userItems.appendChild(userItem);
userItems.id = `user-item-${item.tokenObjectId}`
userItems.appendChild(userItem);
console.log(userItem);
}
renderItem = (item) => {
const itemForSale = marketplaceItemTemplate.cloneNode(true);
if (item.sellerAvatar){
//itemForSale.getElementsByTagName("img")[0].src = item.sellerAvatar.url();
//itemForSale.getElementsByTagName("img")[0].alt = item.sellerUsername;
itemForSale.getElementsByTagName("span")[0].innerText = item.sellerUsername;
}
itemForSale.getElementsByTagName("img")[0].src = item.image;
itemForSale.getElementsByTagName("img")[0].alt = item.name;
itemForSale.getElementsByTagName("h5")[0].innerText = item.name;
itemForSale.getElementsByTagName("p")[0].innerText = item.description;
itemForSale.getElementsByTagName("button")[0].innerText = `Buy for ${item.askingPrice}`;
itemForSale.getElementsByTagName("button")[0].onclick = () => buyItem(item);;
itemForSale.id = `item-${item.uid}`;
itemForSale.appendChild(itemForSale);
}
getAndRenderItemData = (item, renderFunction) => {
fetch(item.tokenUri)
.then(response => response.json())
.then(data => {
item.name = data.name;
item.description = data.description;
item.image = data.image;
renderFunction(item);
})
}
loadItems2 = async () => {
const params = { token_address: TOKEN_CONTRACT_ADDRESS };
const items = await Moralis.Cloud.run("getItems", params);
console.log(items);
}
mintNFT = async (metadataUri) => {
const receipt = await tokenContract.methods.createItem(metadataUri).send({from: ethereum.selectedAddress});;
console.log(receipt);
return receipt.events.Transfer.returnValues.tokenId;
}
ensureMarketplaceIsApproved = async (tokenId, tokenAddress) => {
user = await Moralis.User.current();
const userAddress = user.get("ethAddress");
const contract = new web3.eth.Contract(tokenContractAbi, tokenAddress);
const approvedAddress = await contract.methods.getApproved(tokenId).call({from: userAddress});
if (approvedAddress != MARKETPLACE_CONTRACT_ADDRESS){
await contract.methods.approve(MARKETPLACE_CONTRACT_ADDRESS,tokenId).send({from: userAddress});
}
}
hideElement = (element) => element.style.display = "none";
showElement = (element) => element.style.display = "block";
openUserItems = async () => {
user = await Moralis.User.current();
if (user){
showElement(userItemsSection);
}else{
login();
}
}
//Navbar
const userConnectButton = document.getElementById("btnConnect");
userConnectButton.onclick = login;
const userProfileButton = document.getElementById("btnUserInfo");
userProfileButton.onclick = openUserInfo;
//Userinfo
const userInfo = document.getElementById("userInfo");
const userNameField = document.getElementById("txtUsername");
const userEmailField = document.getElementById("txtEmail");
const userAvatarImg = document.getElementById("imgAvatar");
const userAvatarFile = document.getElementById("fileAvatar");
document.getElementById("btnCloseUserInfo").onclick = () => hideElement(userInfo);
document.getElementById("btnLogOut").onclick = logout;
document.getElementById("btnSaveUserInfo").onclick = saveUserInfo;
//Item Creation
const createItemForm = document.getElementById("createItem");
const createItemNameField = document.getElementById("txtCreateItemName");
const createItemDescriptionField = document.getElementById("txtCreateItemDescription");
const createItemPriceField = document.getElementById("numCreateItemPrice");
const createItemStatusField = document.getElementById("selectCreateItemStatus");
const createItemFile = document.getElementById("fileCreateItemFile");
const openCreateItemButton = document.getElementById("btnOpenCreateItem");
openCreateItemButton.onclick = () => showElement(createItemForm);
document.getElementById("btnCloseCreateItem").onclick = () => hideElement(createItemForm);
document.getElementById("btnCreateItem").onclick = createItem;
//User Items
const userItemsSection = document.getElementById("userItems");
const userItems = document.getElementById("userItemsList");
document.getElementById("btnCloseUserItems").onclick = () => hideElement(userItemsSection);
const openUserItemsButton = document.getElementById("btnMyItems");
openUserItemsButton.onclick = openUserItems;
const userItemTemplate = initTemplate("itemTemplate");
init();
