coinos-server.git - coinos server — legacy coinos.io backend (Lightning, on-chain, Liquid)

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id='n32' href='#n32'>32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168

<script src="https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js"></script>
<script>
  window.addEventListener("load", async () => {
    let sat = (s) => {
      s = Math.abs(s);
      let p = Math.floor(Math.log(s) / Math.LN10 + 0.000000001);
      let d = Math.floor((p + 1) / 3);

      return (
        "⚡️" +
        (parseInt(s) > 0
          ? new Intl.NumberFormat("en-US", { maximumFractionDigits: 2 }).format(
              s / Math.pow(1000, d)
            ) + ["", "K", "M", "G", "T", "P", "E", "Z"][d]
          : 0
        ).toString()
      );
    };

    let copy = (text) => {
      navigator.clipboard.writeText(text);
    };

    let f = (s, currency) =>
      new Intl.NumberFormat("en-US", {
        style: "currency",
        currency,
      })
        .format(s)
        .replace("CA", "");

    let s = (s) =>
      new Intl.NumberFormat("en-US", { maximumFractionDigits: 0 }).format(s);

    let {
      default: { drawImg },
    } = await import("https://coinos.io/qr.js");
    let base64 = drawImg("test", { size: 300 });

    let link = document.createElement("link");
    link.setAttribute("rel", "stylesheet");
    link.setAttribute("type", "text/css");
    link.setAttribute(
      "href",
      "https://fonts.googleapis.com/css?family=Public+Sans:400italic,400,300,700"
    );

    var style = document.createElement("style");
    style.innerHTML = `#check {
        transform: scale(0.5);
        transition: transform 1s;
      }
    `;
    document.head.appendChild(style);

    document.head.appendChild(link);
    document.title = "Pay With Bitcoin";

    let fiat = Shopify.checkout.payment_due;
    let main = document.querySelector("main");
    main.style.fontFamily = "Public Sans, sans-serif";
    main.innerHTML = "Please Pay";

    let data = await fetch("https://dev.coinos.io/api/invoice", {
      method: "POST",
      mode: "cors",
      headers: {
        "Content-Type": "application/json",
        accept: "application/json",
      },
      body: JSON.stringify({
        invoice: {
          fiat,
          type: "lightning",
          webhook: `https://dev.coinos.io/api/shopify/${Shopify.checkout.order_id}`,
        },
        user: { username: "horseradish" },
      }),
    })
      .then(function (response) {
        return response.json();
      })
      .catch(console.log);

    main.innerHTML = `<a href="lightning:${data.hash}">
      <div style="display: flex; margin-top: 50px; margin-bottom: 80px; position: relative;">
        <img id="qrcode" src="${base64}" />
        <div id="bg"></div>
      </div>
    </a>
    <div style="width: 100%; text-align: center; ">
      <div style="font-size: 24px; font-weight: bold; margin-bottom: 12px;">${f(
        (data.amount * data.rate) / 100000000,
        data.currency
      )}</div>
      <div style="color: #666; font-size: 18px;">${sat(data.amount)}</div>
    </div>
    <div style="text-align: center; margin: 40px auto; max-width: 460px; word-break: break-all; line-height: 1.5rem">${
      data.hash
    }</div>
    <div style="margin: 20px 0; display: flex; gap: 1rem; justify-content: center; align-items: center;">
      <a href="lightning:${data.hash}" style="text-decoration: none">
      <div style="color: #999; font-size: 18px; border-radius: 9999px; padding: 0.5rem 1rem; border: 1px solid #ccc; background: white;">Open</div>
      </a>

      <a id="copy" href="#" style="text-decoration: none">
      <div style="color: #999; font-size: 18px; border-radius: 9999px; padding: 0.5rem 1rem; border: 1px solid #ccc; background: white;">Copy</div></a>
    </div>
    `;

    let copyButton = document.getElementById("copy");
    copyButton.addEventListener("click", (e) => {
      e.preventDefault();
      copy(data.hash);
      let copied = document.createElement("div");
      copied.textContent = "Copied!";
      main.appendChild(copied);
      setTimeout(() => copied.remove(), 3000);
    });

    let qr = document.getElementById("qrcode");
    qr.style.margin = "auto";
    qr.style.marginTop = "40px";
    qr.style.border = "12px white solid";
    qr.style.zIndex = 10;

    new QRCode(qr, data.hash);

    let bg = document.getElementById("bg");
    bg.style.position = "absolute";
    bg.style.margin = "auto";
    bg.style.left = "0";
    bg.style.right = "0";
    bg.style.width = "400px";
    bg.style.height = "400px";
    bg.style.borderRadius = "50%";
    bg.style.background = "linear-gradient(to right, #F2F6FC, #E1E3FF)";
    bg.style.zIndex = "0";

    let ws = new WebSocket("wss://dev.coinos.io/ws");
    ws.onmessage = ({ data }) => {
      try {
        let { type, data: d } = JSON.parse(data);
        if (type === "payment") {
          main.innerHTML =
            '<img id="check" src="https://dev.coinos.io/icons/check.svg" alt="Check" />' +
            `<h1>Payment received!</h1>
            <h2>
            ${((d.amount * d.rate) / 100000000).toFixed(2)} CAD
            </h2>
            <h3>
            ⚡️${d.amount}
            </h3>`;

          var image = document.getElementById("check");
          image.addEventListener("load", function () {
            image.style.transform = "scale(1)";
          });
        }
      } catch (e) {
        console.log(e);
      }
    };
    ws.onopen = () => {
      ws.send(JSON.stringify({ type: "subscribe", data }));
    };
  });
</script>


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