[地址轉換經緯度]TDX地址轉經緯度小工具(期間限定)

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    fetch("https://tdx.transportdata.tw/auth/realms/TDXConnect/protocol/openid-connect/token", {
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      method: "POST",
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      headers: {
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        "Content-Type": "application/x-www-form-urlencoded",
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      },
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      body: `grant_type=client_credentials&client_id=${client_id}&client_secret=${client_secret}`,
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    })
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      .then((response) => response.json())
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      .then((data) => {
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        localStorage.setItem("token", data.access_token);
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        localStorage.setItem("token_timestamp", new Date().toISOString());
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        alert("Token has been obtained and stored in local storage.");
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      })
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      .catch((error) => console.error("Error:", error));
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  }
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  function clearToken() {
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    localStorage.removeItem("token");
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    localStorage.removeItem("token_timestamp");
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    alert("Token has been cleared from local storage.");
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  }
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  function getCoordinates() {
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    const client_id = document.getElementById("client_id").value;
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    const client_secret = document.getElementById("client_secret").value;
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    const addresses = document
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      .getElementById("addresses")
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      .value.split("\n")
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      .filter((address) => address.trim() !== "");
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    fetchCoordinates(addresses);
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  }
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  function fetchCoordinates(addresses) {
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    const token = localStorage.getItem("token");
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    const requests_per_second = document.getElementById("requests_per_second").value;
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    console.log("每秒最多呼叫:", requests_per_second);
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    addresses.forEach((address) => {
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      setTimeout(() => {
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        fetch(`https://tdx.transportdata.tw/api/advanced/V3/Map/GeoCode/Coordinate/Address/${encodeURIComponent(address)}?format=JSON`, {
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          headers: {
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            Authorization: `Bearer ${token}`,
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            "Content-Type": "application/json",
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          },
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        })
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          .then((response) => response.json())
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          .then((data) => {
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            const coordinatesResult = document.getElementById("coordinatesResult");
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            const match = data[0]?.Geometry?.match(/POINT \(([-+]?\d*\.\d+) ([-+]?\d*\.\d+)\)/);
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            if (match) {
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              const latitude = parseFloat(match[1]);
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              const longitude = parseFloat(match[2]);
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              coordinatesResult.value += `${address}, ${latitude}, ${longitude}\n`;
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            } else {
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              coordinatesResult.value += `Failed to fetch coordinates for ${address}\n`;
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            }
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          })
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          .catch((error) => {
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            console.error("Error:", error);
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            const coordinatesResult = document.getElementById("coordinatesResult");
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            coordinatesResult.value += `Failed to fetch coordinates for ${address}\n`;
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          });
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      }, 1000 / requests_per_second);
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    });
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  }
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</script>