Node.js 为什么useFactory选项使我在nestjs配置中出错?
类型“(configService:configService)=>Promise”不可分配给类型“(…args:any[])=>({retryAttempts?:number;retryDelay?:number;keepConnectionAlive?:boolean;}&Partial)|({retryAttempts?:number;keepConnectionAlive?:boolean;}&Partial)|。。。还有11个…|“保证”。类型“Promise”不能分配给类型“({retryAttempts?:number;retryDelay?:number;keepConnectionAlive?:boolean;}&Partial)|”({retryAttempts?:number;retryDelay?:number;keepConnectionAlive?:boolean;}&Partial)|。。。还有11个…|“保证”。类型“Promise”不可分配给类型“Promise”。类型“{Type:string;port:string;用户名:string;密码:string;数据库:string;主机:string;实体:string[];synchronize:boolean;}”不能分配给类型“TypeOrmModuleOptions”。类型“{Type:string;port:string;用户名:string;密码:string;数据库:string;主机:string;实体:string[];synchronize:boolean;}”不能分配给类型“{retryAttempts?:number;retryDelay?:number;keepConnectionAlive?:boolean;}&Partial”。 类型“{Type:string;port:string;用户名:string;密码:string;数据库:string;主机:string;实体:string[];synchronize:boolean;}”不能分配给类型“Partial”。 属性“type”的类型不兼容。 类型“string”不可分配给类型“aurora data api” 这就是nestjs给我的信息,我遵循文档中的说明,但对我来说并不适用 这是我的app.module.tsNode.js 为什么useFactory选项使我在nestjs配置中出错?,node.js,nestjs,typeorm,Node.js,Nestjs,Typeorm,类型“(configService:configService)=>Promise”不可分配给类型“(…args:any[])=>({retryAttempts?:number;retryDelay?:number;keepConnectionAlive?:boolean;}&Partial)|({retryAttempts?:number;keepConnectionAlive?:boolean;}&Partial)|。。。还有11个…|“保证”。类型“Promise”不能分配给类型“({re
import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { CategoryModule } from './category/category.module';
import { ProductModule } from './product/product.module';
import { UnitModule } from './unit/unit.module';
import { TypeOrmModule } from '@nestjs/typeorm';
import { ConfigModule } from './config/config.module';
import { ConfigService } from './config/config.service';
import { RolModule } from './rol/rol.module';
import { UserModule } from './user/user.module';
import { AuthModule } from './auth/auth.module';
@Module({
imports: [TypeOrmModule.forRootAsync({
imports: [ConfigModule],
inject: [ConfigService],
useFactory: async (configService: ConfigService) => ({
type: 'mysql',
port: configService.port,
username: configService.username,
password: configService.password,
database: configService.database,
host: configService.host,
entities: [__dirname + '/**/*.entity{.ts,.js}'],
synchronize: true,
}),
}), CategoryModule, UnitModule, ProductModule, RolModule, UserModule, AuthModule],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {}
import { Module } from '@nestjs/common';
import { ConfigService } from './config.service';
@Module({
providers: [{
provide: ConfigService,
useValue: new ConfigService(`${process.env.NODE_ENV || 'development'}.env`),
}],
exports: [ConfigService],
})
export class ConfigModule {}
这是我的config/config.service.ts
import * as dotenv from 'dotenv';
import * as fs from 'fs';
import * as Joi from '@hapi/joi';
export interface EnvConfig {
[key: string]: string;
}
export class ConfigService {
private readonly envConfig: EnvConfig;
constructor(filePath: string) {
const config = dotenv.parse(fs.readFileSync(filePath));
this.envConfig = this.validateInput(config);
}
private validateInput(envConfig: EnvConfig): EnvConfig {
const envVarsSchema: Joi.ObjectSchema = Joi.object({
NODE_ENV: Joi.string()
.valid('development', 'production', 'test', 'provision')
.default('development'),
PORT: Joi.number().default(3000),
HOST: Joi.strict(),
USERNAME: Joi.string(),
PASSWORD: Joi.string(),
DATABASE: Joi.string(),
});
const { error, value: validatedEnvConfig } = envVarsSchema.validate(
envConfig,
);
if (error) {
throw new Error(`Config validation error: ${error.message}`);
}
return validatedEnvConfig;
}
get port(): string {
return String(this.envConfig.PORT);
}
get host(): string {
return String(this.envConfig.HOST);
}
get username(): string {
return String(this.envConfig.USERNAME);
}
get password(): string {
return String(this.envConfig.PASSWORD);
}
get database(): string {
return String(this.envConfig.DATABASE);
}
}
这是我的config/config.module.ts
import { Module } from '@nestjs/common';
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { CategoryModule } from './category/category.module';
import { ProductModule } from './product/product.module';
import { UnitModule } from './unit/unit.module';
import { TypeOrmModule } from '@nestjs/typeorm';
import { ConfigModule } from './config/config.module';
import { ConfigService } from './config/config.service';
import { RolModule } from './rol/rol.module';
import { UserModule } from './user/user.module';
import { AuthModule } from './auth/auth.module';
@Module({
imports: [TypeOrmModule.forRootAsync({
imports: [ConfigModule],
inject: [ConfigService],
useFactory: async (configService: ConfigService) => ({
type: 'mysql',
port: configService.port,
username: configService.username,
password: configService.password,
database: configService.database,
host: configService.host,
entities: [__dirname + '/**/*.entity{.ts,.js}'],
synchronize: true,
}),
}), CategoryModule, UnitModule, ProductModule, RolModule, UserModule, AuthModule],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {}
import { Module } from '@nestjs/common';
import { ConfigService } from './config.service';
@Module({
providers: [{
provide: ConfigService,
useValue: new ConfigService(`${process.env.NODE_ENV || 'development'}.env`),
}],
exports: [ConfigService],
})
export class ConfigModule {}
useFacetory选项是产生错误的选项,但我不明白为什么
我非常感谢任何人的帮助因此,问题是当我试图从.env文件获取端口时,必须将类型转换为数字。例如:
useFactory: async (configService: ConfigService) => ({
type: 'mysql',
port: Number(configService.port),
username: configService.username,
password: configService.password,
database: configService.database,
host: configService.host,
entities: [__dirname + '/**/*.entity{.ts,.js}'],
synchronize: true,
}),
这解决了问题因此,当我试图从.env文件获取端口时,需要将类型转换为数字。例如:
useFactory: async (configService: ConfigService) => ({
type: 'mysql',
port: Number(configService.port),
username: configService.username,
password: configService.password,
database: configService.database,
host: configService.host,
entities: [__dirname + '/**/*.entity{.ts,.js}'],
synchronize: true,
}),
这就解决了问题