DEV Community: coderbang1

MetaMask - Internal JSON-RPC error

coderbang1 — Sun, 26 Sep 2021 15:33:32 +0000

i was following nader full stack nft marketplace, where i can mint nfts but when i try to buy it gives me this error :MetaMask - Internal JSON-RPC error

code: 3, message: "execution reverted: Please submit the asking price in order to complete the purchase", data:

along with this:Uncaught (in promise)

any solution

project ID does not have access to polygon l2

coderbang1 — Fri, 17 Sep 2021 02:46:40 +0000

when i try to deploy it on test net this error keep coming!
what i have to do?

Stack too deep, try removing local variables

coderbang1 — Fri, 06 Aug 2021 11:52:26 +0000

while compiling in remix i get the above error:

CompilerError: Stack too deep, try removing local variables.

(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, tCharity, tMarketing, _getRate());

here is the code part

function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256, uint256) {

`(uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity, uint256 tCharity , uint256 tMarketing) = _getTValues(tAmount);`

`(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, tCharity, tMarketing, _getRate());`

`return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity, tCharity, tMarketing);

} `

send a certain portion to a specific address with every transaction in Smart Contract

coderbang1 — Tue, 06 Apr 2021 23:27:31 +0000

i have created a Smartcontract. now i want the functionality: where 2.5% of every transaction is transferred to a fixed address. say the address is 0x809341c1c1cba2d6accf8188bca463a119443d. i know it can be done but could not able to sum up the code.

here is the contract

 `pragma solidity ^0.5.0;


 contract ERC20Interface {
      function totalSupply() public view returns (uint);
     function balanceOf(address tokenOwner) public view returns (uint balance);

function allowance(address tokenOwner, address spender) public view returns (uint remaining);

function transfer(address to, uint tokens) public returns (bool success);

function approve(address spender, uint tokens) public returns(bool success);

function transferFrom(address from, address to, uint tokens) public returns (bool success);

event Transfer(address indexed from, address indexed to, uint tokens);
event Approval(address indexed tokenOwner, address indexed spender, uint tokens);

}

safe math---------------------------------------------------------------------------
......................
/////////

contract me is ERC20Interface, SafeMath {
string public name;
string public symbol;
uint8 public decimals; // 18 decimals is the strongly suggested default, avoid changing it

uint256 public _totalSupply;

mapping(address => uint) balances;
mapping(address => mapping(address => uint)) allowed;


constructor() public {
    name = "me";
    symbol = "me";
    decimals = 18;
    _totalSupply = 250000000000000000000000000;

    balances[msg.sender] = _totalSupply;
    emit Transfer(address(0), msg.sender, _totalSupply);
}

function totalSupply() public view returns (uint) {
    return _totalSupply  - balances[address(0)];
}

function balanceOf(address tokenOwner) public view returns (uint balance) {
    return balances[tokenOwner];
}

function allowance(address tokenOwner, address spender) public view returns (uint remaining) {
    return allowed[tokenOwner][spender];
}

function approve(address spender, uint tokens) public returns (bool success) {
allowed[msg.sender][spender] = tokens;
emit Approval(msg.sender, spender, tokens);
return true;
}

function transfer(address to, uint tokens) public returns (bool success) {
    balances[msg.sender] = safeSub(balances[msg.sender], tokens);
    balances[to] = safeAdd(balances[to], tokens);
    emit Transfer(msg.sender, to, tokens);
    return true;
}

function transferFrom(address from, address to, uint tokens) public returns (bool success) {
    balances[from] = safeSub(balances[from], tokens);
    allowed[from][msg.sender] = safeSub(allowed[from][msg.sender], tokens);
    balances[to] = safeAdd(balances[to], tokens);
    emit Transfer(from, to, tokens);
    return true;
}

}

can someone suggest me, what i have to do to connect contentful with my ecom site.

coderbang1 — Sun, 31 Jan 2021 16:07:32 +0000

i have created a ecom sites in JavaScript. now i want to connect it with contentful. i think i did everything right, but its not working.

here is my main.js file

 const client = contentful.createClient({
// This is the space ID. A space is like a project folder in Contentful terms
space: "bao7ve9vhfk1",
// This is the access token for this space. Normally you get both ID and the token in the Contentful web app
accessToken: "8MOXl3bT6KvbpuTnU65ICHNmKrCThiusXPOqVJ92KHk"

});

  let carts = document.querySelectorAll('.add-cart');

 let products = [ 
  {
    name: "Grey Tshirt",
    tag: "greytshirt",
    price: 15,
    inCart: 0
   },
   {
    name: "Grey Hoddie",
    tag: "greyhoddie",
    price: 20,
    inCart: 0
   },
  {
    name: "Black Tshirt",
    tag: "blacktshirt",
    price: 15,
    inCart: 0
  },
  {
    name: "Black Hoddie",
    tag: "blackhoddie",
    price: 20,
    inCart: 0
  }
 ];

  for(let i=0; i< carts.length; i++) {
carts[i].addEventListener('click', () => {
    cartNumbers(products[i]);
    totalCost(products[i]);
});

}

function onLoadCartNumbers() {

let productNumbers = localStorage.getItem('cartNumbers');
if( productNumbers ) {
    document.querySelector('.cart span').textContent = productNumbers;
}

}

function cartNumbers(product, action) {

let productNumbers = localStorage.getItem('cartNumbers');
productNumbers = parseInt(productNumbers);


let cartItems = localStorage.getItem('productsInCart');
cartItems = JSON.parse(cartItems);



if( action ) {
    localStorage.setItem("cartNumbers", productNumbers - 1);
    document.querySelector('.cart span').textContent = productNumbers - 1;
    console.log("action running");
} else if( productNumbers ) {
    localStorage.setItem("cartNumbers", productNumbers + 1);
    document.querySelector('.cart span').textContent = productNumbers + 1;
} else {
    localStorage.setItem("cartNumbers", 1);
    document.querySelector('.cart span').textContent = 1;
}
setItems(product);

}

function setItems(product) {
// let productNumbers = localStorage.getItem('cartNumbers');
// productNumbers = parseInt(productNumbers);

let cartItems = localStorage.getItem('productsInCart');
cartItems = JSON.parse(cartItems);



if(cartItems != null) {
    let currentProduct = product.tag;

    if( cartItems[currentProduct] == undefined ) {
        cartItems = {
            ...cartItems,
            [currentProduct]: product
        }
    } 
    cartItems[currentProduct].inCart += 1;

} else {
    product.inCart = 1;
    cartItems = { 
        [product.tag]: product
    };
}

localStorage.setItem('productsInCart', JSON.stringify(cartItems));

}

function totalCost( product, action ) {
let cart = localStorage.getItem("totalCost");

if( action) {
    cart = parseInt(cart);

    localStorage.setItem("totalCost", cart - product.price);
} else if(cart != null) {

    cart = parseInt(cart);
    localStorage.setItem("totalCost", cart + product.price);

} else {
    localStorage.setItem("totalCost", product.price);
}

}

async function displayCart() {
let content = await client.getEntries({
content_type: 'ecom'
});

  //.then((response) => console.log(response.time))
  //.catch(console.error)
let cartItems = localStorage.getItem('productsInCart');
cartItems = JSON.parse(cartItems);

let cart = localStorage.getItem("totalCost");
cart = parseInt(cart);

let productContainer = document.querySelector('.products');



if( cartItems && productContainer ) {
    productContainer.innerHTML = '';
    Object.values(cartItems).map( (item, index) => {

        productContainer.innerHTML += 
        `<div class="product"><ion-icon name="close-circle"></ion-icon><img src="./images/${item.tag}.jpg" />
            <span class="sm-hide">${item.name}</span>
        </div>
        <div class="price sm-hide">$${item.price},00</div>
        <div class="quantity">
            <ion-icon class="decrease " name="arrow-dropleft-circle"></ion-icon>
                <span>${item.inCart}</span>
            <ion-icon class="increase" name="arrow-dropright-circle"></ion-icon>   
        </div>
        <div class="total">$${item.inCart * item.price},00</div>`;
    });

    productContainer.innerHTML += `
        <div class="basketTotalContainer">
            <h4 class="basketTotalTitle">Basket Total</h4>
            <h4 class="basketTotal">$${cart},00</h4>

        </div>`

    deleteButtons();
    manageQuantity();
}

i have create a shopping cart .But when i remove any items form my cart the grand total remains same.

coderbang1 — Fri, 29 Jan 2021 07:01:11 +0000

      Here is my code...

       <!DOCTYPE html>

<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src='https://kit.fontawesome.com/a076d05399.js'></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<title>Food Shop</title>

            <a href="cart.html"><i class="fa fa-shopping-cart" style="color:red" > </i></a>
            <a class="navbar-brand" href="#">Pizza shop</a>

    </div>
  </nav>

<div class="card" style="width: 18rem;">
    <img class="card-img-top" src="images/p.jpg" alt="Card image cap">
    <div class="card-body">
      <h5 class="card-title">Blossum pizza</h5>
      <p class="card-text">$10</p>
      <a href="#" class="btn btn-primary">add to cart </a>
    </div>
</div>

<div class="card" style="width: 18rem;">
    <img class="card-img-top" src="images/m.jpg" alt="Card image cap">
    <div class="card-body">
      <h5 class="card-title">Blossum pizza</h5>
      <p class="card-text">$15</p>
      <a href="#" class="btn btn-primary">add to cart</a>
    </div>
</div>

javascript

 let carts = document.querySelectorAll(".btn-primary");

 let products= [
{
    name: 'pizza',
    price:10,
    tag: 'ppizza',
    inCart:0
},
{
    name: 'pitza',
    price:15,
    tag: 'mpizza',
    inCart:0

}


];
for (let i = 0; i< carts.length; i++) {
carts[i].addEventListener('click', () => {
cartNumbers(products[i]);
totalCost(products[i]);
})
}

function cartLoad() {
let productNumbers = localStorage.getItem('cartNumbers');

if (productNumbers){
    document.querySelector('.fa-shopping-cart').textContent 

 =productNumbers;
}

}

 function cartNumbers(product) {

 let productNumbers = localStorage.getItem('cartNumbers');



  productNumbers = parseInt(productNumbers);

  if (productNumbers) {
    localStorage.setItem('cartNumbers', productNumbers + 1);
    document.querySelector('.fa-shopping-cart').textContent                    
     =productNumbers + 1;
  }
  else{
    localStorage.setItem('cartNumbers',  1);
    document.querySelector('.fa-shopping-cart').textContent  
     =1;
  }
  setItems(product);



}

function setItems(product){
  let cartItems = localStorage.getItem('productsIncart');
  cartItems = JSON.parse(cartItems);
  if(cartItems !=null){
    if(cartItems[product.tag] == undefined){
      cartItems ={
        ...cartItems,[product.tag]:product
      }

    }

    cartItems[product.tag].inCart +=1;
  }else{
    product.inCart = 1;
   cartItems ={
    [product.tag]:product
  }

  }

localStorage.setItem('productsIncart',JSON.stringify   
(cartItems));

}

function totalCost(product){
  let cartCost = localStorage.getItem('totalCost');


  if (cartCost !=null){
    cartCost = parseInt(cartCost);
    localStorage.setItem("totalCost", cartCost + product.price);
  }else{
    localStorage.setItem("totalCost",product.price);
  }


}

function displayCart(){
let cartItems = localStorage.getItem("productsIncart");
  cartItems = JSON.parse(cartItems);

  let productContainer = document.querySelector (".products")
  let cartCost = localStorage.getItem('totalCost');

  if(cartItems && productContainer){
      productContainer.innerHTML ='';
      Object.values(cartItems).map(item =>{

        productContainer.innerHTML += `

    <div class=""container">
        <div class="row">
               <div class="col-sm">
               <button type="button" class="dark" >Remove </button>
                  ${item.name}


                </div>

              <div class="col-sm">
                  ${item.price} 
              </div>
              <div class="col-sm">
              <button style='font-size:10px;color:red'>decrease <i class='fas fa-angle-left'></i></button>


                 ${item.inCart}
                 <button style='font-size:10px;color:blue'>increase <i class='fas fa-angle-right'></i></button>


              </div>

              <div class="col-sm">
                  ${item.price * item.inCart}
                </div>
        </div>
    </div>
         `;
      });

      productContainer.innerHTML += `

      <div class="container">
      <div class="col-6 col-md-4">
          <div class="col">
          <h4>  Grand Total </h4>
            <div class="p-3 border bg-light">${cartCost}</div>

          </div>
        </div>
      </div>
      `

  }

}
displayCart();
cartLoad();


  let button = document.getElementsByClassName('dark');
 for (let i = 0; i < button.length; i++) {
  button[i].addEventListener('click', function(event)  {
   let clicked= event.target
   clicked.parentElement.parentElement.remove()
   remove();


   })

 }

 function remove(){
 let itemRemove = localStorage.getItem("cartNumbers");

  itemRemove = parseInt(itemRemove);
  if(itemRemove){
    localStorage.setItem("cartNumbers", itemRemove -1)
    document.querySelector('.fa-shopping-cart').textContent =itemRemove - 1;
  } else{
    localStorage.setItem("cartNumbers",1);
    document.querySelector('.fa-shopping-cart').textContent = 1;


  }

}