mysql createPool
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34
pages/api - Kopie/talas_v5_DB/gisLines/readGisLines.js
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34
pages/api - Kopie/talas_v5_DB/gisLines/readGisLines.js
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// /pages/api/talas_v5_DB/gisLines/readGisLines.js
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import mysql from "mysql2/promise";
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// Erstellen eines Pools von Datenbankverbindungen
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const pool = mysql.createPool({
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host: process.env.DB_HOST,
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user: process.env.DB_USER,
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password: process.env.DB_PASSWORD,
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database: process.env.DB_NAME,
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port: process.env.DB_PORT,
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waitForConnections: true,
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connectionLimit: 10,
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queueLimit: 0,
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});
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export default async function handler(req, res) {
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if (req.method !== "GET") {
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return res.status(405).json({ error: "Nur GET Methode erlaubt" });
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}
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const query = "SELECT * FROM talas_v5.gis_lines;";
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try {
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const [results] = await pool.query(query);
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if (results.length > 0) {
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res.status(200).json(results);
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} else {
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res.status(404).json({ error: "Gerät nicht gefunden" });
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}
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} catch (error) {
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console.error("Fehler beim Abrufen der gis_lines:", error);
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res.status(500).json({ error: "Fehler beim Abrufen der gis_lines" });
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}
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}
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@@ -0,0 +1,58 @@
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import mysql from "mysql2/promise";
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// Erstellen eines Pools von Datenbankverbindungen
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const pool = mysql.createPool({
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host: process.env.DB_HOST,
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user: process.env.DB_USER,
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password: process.env.DB_PASSWORD,
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database: process.env.DB_NAME,
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port: process.env.DB_PORT,
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waitForConnections: true,
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connectionLimit: 10,
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queueLimit: 0,
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});
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export default async function handler(req, res) {
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if (req.method !== "POST") {
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return res.status(405).json({ error: "Nur POST Methode erlaubt" });
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}
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const { idLD, idModul, newCoordinates } = req.body;
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if (!idLD || !idModul || !newCoordinates) {
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return res.status(400).json({ error: "Fehlende Daten" });
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}
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const newLineString = `LINESTRING(${newCoordinates.map((coord) => `${coord[0]} ${coord[1]}`).join(",")})`;
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const query = "UPDATE talas_v5.gis_lines SET points = ST_GeomFromText(?) WHERE idLD = ? AND idModul = ?;";
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let connection;
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try {
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// Hole eine Verbindung aus dem Pool
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connection = await pool.getConnection();
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// Beginne eine Transaktion
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await connection.beginTransaction();
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// Führe die Abfrage aus
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const [results] = await connection.query(query, [newLineString, idLD, idModul]);
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// Commit der Transaktion
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await connection.commit();
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console.log("Transaction Complete.");
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res.status(200).json({
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success: "Updated successfully.",
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affectedRows: results.affectedRows,
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});
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} catch (error) {
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// Rollback im Falle eines Fehlers
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if (connection) await connection.rollback();
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console.error("Fehler beim Aktualisieren der gis_lines:", error);
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res.status(500).json({ error: "Fehler beim Aktualisieren der gis_lines" });
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} finally {
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// Stelle sicher, dass die Verbindung zurückgegeben wird
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if (connection) connection.release();
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}
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}
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