Hi guys
I’m new to coding and have been following the Moralis tutorials on making a NFT marketplace like Rarable. I cant get my create button to work.
It should save the name, description, price and the NFT chosen by the user.
Has anyone done this tutorial before or know how I can fix this issue?
My code is pasted below.
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Morarables</title>
</head>
<body>
<div>
<button id="btnConnect">Connect Wallet</button>
<button id="btnUserInfo">Profile</button>
<button id="btnOpenCreateItem">Create</button>
</div>
<div id="userInfo">
<h4>User Profile</h4>
<input type="text" id="txtUsername" required placeholder="Enter username">
<input type="text" id="txtEmail" placeholder="Enter email">
<small>Optional</small>
<img width="50" height="50" src="" id="imgAvatar" alt="">
<label for="fileAvatar">Select Avatar</label>
<input type="file" id="fileAvatar">
<button id="btnLogOut">Log out</button>
<button id="btnCloseUserInfo">Close</button>
<button id="btnSaveUserInfo">Save</button>
</div>
<div id="createItem">
<h4>Create Item</h4>
<input type="text" id="txtCreateItemName" required placeholder="Enter name">
<textarea id="txtCreateItemDescription" cols="30" rows="5" placeholder="Enter description"></textarea>
<input type="number" min="1" step="1" id="numCreateItemPrice" placeholder="Enter price" required>
<label for="selectCreateItemStatus">Status</label>
<select id="selectCreateItemStatus">
<option value="0">Not for sale</option>
<option value="1">Instant buy</option>
<option value="2">Accept Offers</option>
</select>
<label for="fileCreateItemFile">Select File</label>
<input type="file" id="fileCreateItemFile">
<button id="btnCloseCreateItem">Close</button>
<button id="btnCreateItem">Create!</button>
</div>
<script src="https://cdn.jsdelivr.net/npm/web3@latest/dist/web3.min.js"></script>
<script src="https://unpkg.com/moralis/dist/moralis.js"></script>
<script src="main.js"></script>
</body>
</html>
JavaScript
const serverUrl = "https://da83jdqdl0gt.usemoralis.com:2053/server";
const appId = "JllyuQ1vxxN5cY6WSllUYPm9IWzeyKnh6ZvZ9sS9";
Moralis.start({ serverUrl, appId });
init = async () => {
hideElement(userInfo);
hideElement(createItemForm);
await Moralis.enableWeb3();
initUser();
}
initUser = async () => {
if (await Moralis.User.current()){
hideElement(userConnectButton);
showElement(userProfileButton);
showElement(openCreateItemButton);
}else{
showElement(userConnectButton);
hideElement(userProfileButton);
hideElement(openCreateItemButton);
hideElement(createItemForm);
}
}
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();
}
CreateItem = async () => {
if (createItemFile.files.length == [0]){
alert("Please select a file!");
return;
}else if (createItemNameField.files.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,
nftFilePath: nftFilePath,
nftFileHash: nftFileHash
};
const nftFileMetadataFile = new Moralis.file("Metadata.json", { base64 : btoa(JSON.stringify(Metadata))});
await nftFileMetadataFile.saveIPFS();
const nftFileMetadataFilePath = nftFileMetadata.ipfs();
const nftFileMetadataFileHash = nftFileMetadata.hash();
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);
await item.save();
console.log(item);
}
hideElement = (element) => element.style.display = "none";
showElement = (element) => element.style.display = "block";
//Navbar
const userConnectButton = document.getElementById("btnConnect");
userConnectButton.onclick = login;
const userProfileButton = document.getElementById("btnUserInfo");
userProfileButton.onclick = openUserInfo;
const openCreateItemButton = document.getElementById("btnOpenCreateItem");
openCreateItemButton.onclick = () => showElement(createItemForm);
//User Profile
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");
document.getElementById("btnCloseCreateItem").onclick = () => hideElement(createItemForm);
init();