[RUBY] [Payjp] Payjp :: InvalidRequestError No such token solution

Overview

When I tried to create a customer with Payjp, it took time to resolve the error No such token, so I will describe the flow of resolution.

Details of the error

As mentioned above, I have been told that there is no such token.

--The token can be sent to Js → Rails side

• Completed 500 Internal Server Error

Because it is, I thought that it was an error on the server side, so I tried various things such as whether the private key was correct, but I could not solve it.

Description of card.js

I was stepping on that it was an error on the server side, but I also checked the description of js.

card.js

const pay = () => {
  Payjp.setPublicKey(process.env.PAYJP_PUBLIC_KEY);
  const form = document.getElementById("charge-form");
  form.addEventListener("submit", (e) => {
    e.preventDefault();
    const formResult = document.getElementById("charge-form");
    const formData = new FormData(formResult);

    const card = {
      number: formData.get("number"),
      cvc: formData.get("cvc"), 
      exp_month: formData.get("exp_month"),
      exp_year: `20${formData.get("exp_year")}`
    };
    Payjp.createToken(card, (status, response) => {
      if (status === 200) {
        const token = response.id;
        const renderDom = document.getElementById("charge-form");
        const tokenObj = `<input value=${token}, type="hidden", name="card_token">`;
        renderDom.insertAdjacentHTML("beforeend", tokenObj);
       }
        document.getElementById("card-number").removeAttribute("name");
        document.getElementById("card-exp-month").removeAttribute("name");
        document.getElementById("card-exp-year").removeAttribute("name");
        document.getElementById("card-cvc").removeAttribute("name");

        document.getElementById("charge-form").submit();
        document.getElementById("charge-form").reset();
    });
  });
};
window.addEventListener("load", pay);

There seems to be nothing strange about it ...

A feeling of strangeness

In a similar description, I also wrote a code that uses js to send the total price of the product (total_price) to the server side.

sendTotalPrice.js

function sendTotalPrice() {
  const totalPriceDom = document.getElementById("cart-total-price")
  const totalPrice = parseInt(totalPriceDom.innerHTML);

  const renderDom = document.getElementById("charge-form");
  const totalPriceObj = `<input value=${totalPrice}, type="hidden", name="total_price">`;
  renderDom.insertAdjacentHTML("beforeend", totalPriceObj);
};
window.addEventListener('load', sendTotalPrice);

I've felt strange here. In the total_price of the sent params There are unnecessary "," in it.

The cause was the description in js

There was a mistake in the description for including the token value in the form.

mistake

 const tokenObj = `<input value=${token}, type="hidden", name="card_token">`;

correct

 const tokenObj = `<input value=${token} type="hidden" name="card_token">`;

The comma "," after value = $ {token} was unnecessary!

What I learned

In form_with such as Rails, a comma is required to separate attributes, but in HTML elements, a comma is not required to separate attributes.
If you are suffering from similar content, I hope it will be helpful.