apollo server express，graphql自定义模式指令

这对我来说很奇怪。 根据文档，我将我的Auth SchemaDirective设置为：

class RequireAuthDirective extends SchemaDirectiveVisitor {
  visitFieldDefinition(field) {
    const { resolve = defaultFieldResolver } = field;
    field.resolve = async (...args) => {
      let [, params, { req, res, connection }] = args;
      let { user } = req || connection.context;
      if (!!user) {
        return await resolve.apply(this, args);
      } else {
        throw new AuthenticationError('You must be signed in to view this resource.');
      }
    };
  }
}

class RequireAuthDirective extends SchemaDirectiveVisitor {
  visitFieldDefinition(field) {
    const { resolve = defaultFieldResolver } = field;
    field.resolve = async (...args) => {
      let [, params, { req, res, connection }] = args;
      let { user } = req || connection.context;
      if (!!user) {
        if (await isAllowed(user.id, field.name, params)) return await resolve.apply(this, args); // ChkPoint
        throw new AuthenticationError('You are not authorized to access this resource.'); 
      } else {
        throw new AuthenticationError('You must be signed in to access this resource.');
      }
    };
  }
}

这在每个

查询

，

变异

，

订阅

但当我使用外部异步方法检查授权时，如下所示：

class RequireAuthDirective extends SchemaDirectiveVisitor {
  visitFieldDefinition(field) {
    const { resolve = defaultFieldResolver } = field;
    field.resolve = async (...args) => {
      let [, params, { req, res, connection }] = args;
      let { user } = req || connection.context;
      if (!!user) {
        return await resolve.apply(this, args);
      } else {
        throw new AuthenticationError('You must be signed in to view this resource.');
      }
    };
  }
}

class RequireAuthDirective extends SchemaDirectiveVisitor {
  visitFieldDefinition(field) {
    const { resolve = defaultFieldResolver } = field;
    field.resolve = async (...args) => {
      let [, params, { req, res, connection }] = args;
      let { user } = req || connection.context;
      if (!!user) {
        if (await isAllowed(user.id, field.name, params)) return await resolve.apply(this, args); // ChkPoint
        throw new AuthenticationError('You are not authorized to access this resource.'); 
      } else {
        throw new AuthenticationError('You must be signed in to access this resource.');
      }
    };
  }
}

这在

查询

和

突变

中可以正常工作，但在订阅中则不行

注意：如果我删除

ChkPoint

条件（返回true），它将在订阅中工作