TypeORM - logging, logger

https://orkhan.gitbook.io/typeorm/docs/logging

logging:

{
    name: "mysql",
    type: "mysql",
    host: "localhost",
    port: 3306,
    username: "test",
    password: "test",
    database: "test",
    ...
    logging: true
}

You can enable logging of all queries and errors by simply setting logging: true in data source options.

{
    host: "localhost",
    ...
    logging: ["error"]
}

You can enable different types of logging in data source options:

• query - logs all queries.
• error - logs all failed queries and errors.
• schema - logs the schema build process.
• warn - logs internal orm warnings.
• info - logs internal orm informative messages.
• log - logs internal orm log messages.

https://github.com/typeorm/typeorm/blob/master/src/logger/Logger.ts

export type LogLevel =
    | "query"
    | "schema"
    | "error"
    | "warn"
    | "info"
    | "log"
    | "migration"

export type LogMessageType =
    | "log"
    | "info"
    | "warn"
    | "error"
    | "query"
    | "query-error"
    | "query-slow"
    | "schema-build"
    | "migration"

https://github.com/typeorm/typeorm/blob/master/src/logger/AbstractLogger.ts#L233

query-slow LogMessageType은 항상 출력됩니다.

...
            case "query-slow":
                return true
...

logger:

• advanced-console: default
  https://github.com/typeorm/typeorm/blob/master/src/logger/LoggerFactory.ts#L43
• simple-console
• file
• debug