在具有多个参数的Loopback远程方法中执行Postgres存储过程

// 引入相关模块和依赖
const app = require('loopback');
const postgres = require('loopback-connector-postgresql');

// 创建数据源
const dataSource = app.createDataSource({
  connector: postgres,
  host: 'localhost',
  port: 5432,
  database: 'your_database',
  username: 'your_username',
  password: 'your_password'
});

// 创建模型
const MyModel = dataSource.createModel('MyModel', {}, {
  methods: {
    executeStoredProcedure: {
      isStatic: false,
      accepts: [
        { arg: 'param1', type: 'string', required: true },
        { arg: 'param2', type: 'number', required: true },
      ],
      returns: { arg: 'result', type: 'object' },
    },
  },
});

// 实现远程方法
MyModel.prototype.executeStoredProcedure = function(param1, param2) {
  return new Promise((resolve, reject) => {
    const sql = `CALL your_stored_procedure('${param1}', ${param2})`;
    dataSource.connector.execute(sql, [], (err, result) => {
      if (err) {
        reject(err);
      } else {
        resolve(result);
      }
    });
  });
};

// 注册模型
app.model(MyModel);

// 启动应用程序
app.start();