我正在使用MongoDB的Express App,并尝试将FeathersJS用于我的所有服务。在这里,我正在运行测试尝试从服务器到客户端获取错误消息,但是我遇到了错误处理程序的响应问题。我的req标头有正确的application/json
内容,所以我假设错误处理程序应该发送有效的json。
我知道我没有在我的函数中使用下一个回调,但是当我尝试这样做时它会产生相同的错误,所以我认为它与错误处理程序有关。这里的任何方向都将非常感谢!
第一个错误日志在服务器上,这是正确的。
Bucket Services
error >>>>> Bucket validation failed
Possibly Unhandled Rejection: Bucket validation failed, Promise { <rejected> 'Bucket validation failed' }
>>>>>> Error: Unexpected token < in JSON at position 0
at convert (/Users/jaruesink/Documents/Projects/Buckets/node_modules/feathers-rest/node_modules/feathers-errors/lib/index.js:365:79)
at toError (/Users/jaruesink/Documents/Projects/Buckets/node_modules/feathers-rest/lib/client/base.js:24:37)
at process._tickCallback (internal/process/next_tick.js:103:7)
我在BucketService类中的create函数:
create({
amount,
isFund = false,
name,
type,
userID: owner
}, params, next) {
const new_bucket = new Bucket({ name, amount, type, isFund, owner });
return new_bucket.save((error) => {
console.log('error >>>>>', error.message);
if (error) { return Promise.reject(error.message); }
return Promise.resolve(new_bucket);
});
}
我的路由器文件:
const feathers = require('feathers');
const errorHandler = require('feathers-errors/handler');
const rest = require('feathers-rest');
const router = feathers();
const LoginService = require('../services/login_service');
const UserService = require('../services/user_service');
const BucketService = require('../services/bucket_service');
// Enable REST services
router.configure(rest());
router.use((req, res, next) => {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
next();
});
router.use('/login', new LoginService());
router.use('/user', new UserService());
router.use('/bucket', new BucketService());
// Set up error handling
router.use(errorHandler());
module.exports = router;
答案 0 :(得分:1)
我想通了,关键是要正确地通过回调(下一个)函数作为处理错误的第三个参数。 FeathersJS会在出错时为您处理Promise拒绝。然后在我的测试中,我需要在获得消息之前将Feathers-Error转换为JSON。
我将测试改为:
it('can validate an incorrect bucket', (done) => {
const invalid_bucket = {
name: 'Invalid Bucket',
};
bucket_service.create(invalid_bucket, {}, (error) => {
error = error.toJSON();
assert(error.message.length > 0);
done();
});
});
和我的创建函数:
create({
amount,
isFund = false,
name,
type,
userID: owner
}, params, next) {
const new_bucket = new Bucket({ name, amount, type, isFund, owner });
return new_bucket.save()
.then(created_bucket => Promise.resolve(created_bucket))
.catch(next);
}