nestjs context.swithToHttp().getRequest() 返回未定义 [英] nestjs context.swithToHttp().getRequest() returns undefined

问题描述

我想为 Graphql 创建 RolesGuard

我创建了如下的角色装饰器

export const Roles = (...roles: string[]) =>SetMetadata('角色', 角色);

我创建 GqlAuthGuard 和 RolesGuard 如下

gql-gurad.ts@Injectable()导出类 GqlAuthGuard 扩展 AuthGuard('jwt') {获取请求(上下文:执行上下文){const ctx = GqlExecutionContext.create(context);返回 ctx.getContext().req;}}角色守卫.ts@Injectable()导出类 RolesGuard 实现 CanActivate {构造函数(私有只读反射器:反射器){}canActivate(上下文:ExecutionContext):布尔{const roles = this.reflector.get('roles', context.getHandler());如果(！角色){返回真；}const request = context.switchToHttp().getRequest();const 用户 = request.user;...}}

但行 const request = context.switchToHttp().getRequest(); 返回未定义.

我正在使用两个像下面这样的守卫

@AuthGuard(GqlAuthGuard, RolesGuard)@突变(...)

我错过了什么??

解决方案

我自己解决了.

const request = context.switchToHttp().getRequest();const 用户 = request.user;到const ctx = GqlExecutionContext.create(context);const 用户 = ctx.getContext().req.user;

我是从 nestjs discord 频道找到的.

https://discordapp.com/channels/5206228127428116498/582882882082

I want to create RolesGuard for Graphql

I create Roles decorator like following

export const Roles = (...roles: string[]) => SetMetadata('roles', roles);

And I create GqlAuthGuard and RolesGuard like following

gql-gurad.ts

@Injectable()
export class GqlAuthGuard extends AuthGuard('jwt') {
    getRequest(context: ExecutionContext){
        const ctx = GqlExecutionContext.create(context);
        return ctx.getContext().req;
    }
}

role-guard.ts

@Injectable()
export class RolesGuard implements CanActivate {
constructor(private readonly reflector: Reflector) {}

    canActivate(context: ExecutionContext): boolean {
        const roles = this.reflector.get<string[]>('roles', context.getHandler());
        if (!roles) {
            return true;
        }
        const request = context.switchToHttp().getRequest();
        const user = request.user;

        ...
    }
}

but line const request = context.switchToHttp().getRequest(); returns undefined.

and i'm using two guards like following

@AuthGuard(GqlAuthGuard, RolesGuard)
@Mutation(...)

What did I miss??

解决方案

I solved it myself.

const request = context.switchToHttp().getRequest();
const user = request.user;

to

const ctx = GqlExecutionContext.create(context);
const user = ctx.getContext().req.user;

i found it from nestjs discord channel.

https://discordapp.com/channels/520622812742811698/520649487924985885

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