javascript - Ben Awad 视频教程问题与 npx mikro-orm 迁移 :create

Question

我正在逐步按照教程进行操作，当我到达运行 npx mikro-orm migration:create 的部分时，出现此错误

TypeError [ERR_INVALID_ARG_TYPE]:“key”参数必须是字符串类型或 Buffer、TypedArray、DataView 或 KeyObject 的实例。收到空值

    at prepareSecretKey (internal/crypto/keys.js:322:11)
    at new Hmac (internal/crypto/hash.js:113:9)
    at Object.createHmac (crypto.js:147:10)
    at createHMAC (C:\lireddit-server\node_modules\pg\lib\sasl.js:133:17)
    at Hi (C:\lireddit-server\node_modules\pg\lib\sasl.js:137:13)
    at Object.continueSession (C:\lireddit-server\node_modules\pg\lib\sasl.js:32:24)
    at Client._handleAuthSASLContinue (C:\lireddit-server\node_modules\pg\lib\client.js:248:10)
    at Connection.emit (events.js:314:20)
    at Connection.EventEmitter.emit (domain.js:483:12)
    at C:\lireddit-server\node_modules\pg\lib\connection.js:109:12
    at Parser.parse (C:\lireddit-server\node_modules\pg-protocol\src\parser.ts:102:9)
    at Socket.<anonymous> (C:\lireddit-server\node_modules\pg-protocol\src\index.ts:7:48)
    at Socket.emit (events.js:314:20)
    at Socket.EventEmitter.emit (domain.js:483:12)
    at addChunk (_stream_readable.js:298:12)
    at readableAddChunk (_stream_readable.js:273:9)```

I can't find any solution on google, and the tut doesn't point out how to login to postgresql on the app

Answer 1

您缺少一些配置，很可能是 user 或 password 字段。这是相关问题:

https://github.com/mikro-orm/mikro-orm/issues/866

如果您不提供它们，MikroORM 将为给定的驱动程序选择默认值，即 postgres 用户和空密码 - 您的 postgres 安装显然没有该用户的空密码。

如果你使用 docker 创建 postgres 服务器，你可以这样让它接受空 pws:

  postgre:
    image: postgres:12.4
    ports:
      - 5432:5432
    environment:
      POSTGRES_HOST_AUTH_METHOD: trust   <-- here