我正在尝试通过Firebase Functions访问我的Google Cloud SQL数据库。我遵循了Google documentation,但它不是很好,并且遗漏了大量信息。
我将文档中的代码添加到了我的src\index.ts
文件中,并填写了我的数据:
const mysql = require('mysql');
const connectionName =
process.env.INSTANCE_CONNECTION_NAME || 'test';
const dbUser = process.env.SQL_USER || 'test';
const dbPassword = process.env.SQL_PASSWORD || 'test';
const dbName = process.env.SQL_NAME || 'test';
const mysqlConfig = {
connectionLimit: 1,
user: dbUser,
password: dbPassword,
database: dbName,
};
if (process.env.NODE_ENV === 'production') {
mysqlConfig.socketPath = `/cloudsql/${connectionName}`;
}
// Connection pools reuse connections between invocations,
// and handle dropped or expired connections automatically.
let mysqlPool;
exports.mysqlDemo = (req, res) => {
// Initialize the pool lazily, in case SQL access isn't needed for this
// GCF instance. Doing so minimizes the number of active SQL connections,
// which helps keep your GCF instances under SQL connection limits.
if (!mysqlPool) {
mysqlPool = mysql.createPool(mysqlConfig);
}
mysqlPool.query('SELECT NOW() AS now', (err, results) => {
if (err) {
console.error(err);
res.status(500).send(err);
} else {
res.send(JSON.stringify(results));
console.log("Connected!")
}
});
// Close any SQL resources that were declared inside this function.
// Keep any declared in global scope (e.g. mysqlPool) for later reuse.
};
然后我尝试发布此消息以查看其是否有效,并且出现错误:
在package.json中未将模块'mysql'列为依赖项
因此我通过执行mysql
npm install mysql
然后我再次运行它,这次我得到了错误:
src / index.ts(23,15):错误TS2339:类型'{connectionLimit:number;不存在属性'socketPath'用户:字符串;密码:字符串;数据库:字符串; }'
这是怎么回事?我已经正确安装了吗?我很迷茫,文档似乎没有提供很多解决方案。谢谢!
答案 0 :(得分:2)
这似乎是一个TypeScript错误,其中会推断出config对象的接口,然后您尝试在该对象上添加一个未声明的额外字段。换句话说,来自Google的示例代码是JavaScript,您正在使用TypeScript并遇到TS错误。
我认为,您应该可以调整mysqlConfig
的声明以包含一个socketPath
属性(设置为null
),并且都应该可以。换句话说,将mysqlConfig
的定义更改为:
const mysqlConfig = {
connectionLimit: 1,
user: dbUser,
password: dbPassword,
database: dbName,
socketPath: null
};