如何在客户端的feathersjs服务中响应错误？

Question

我跟着这个链接“https://docs.feathersjs.com/services/readme.html”打造由feathersjs RESTful服务。它适用于正常情况。但我不知道如何向客户端回复错误消息，如404,500等。以下是服务代码。它通过promise.resolve返回响应。在这种情况下如何返回错误？

class MessageService { 
    get(id, params) { 
    return Promise.resolve({ 
     id, 
     read: false, 
     text: `Feathers is great!`, 
     createdAt: new Date.getTime() 
    }); 
    } 
} 

Answer 1

您可以使用'feathers-errors'模块设置错误代码。请参阅下面的示例代码。

const feathers = require('feathers'); 
const rest = require('feathers-rest'); 
const errors = require('feathers-errors'); 
const app = feathers(); 

app.configure(rest()); 
app.use('/messages', { 
    get(id, params) { 
    console.log(id); 
    if (id === "1") { 
     return Promise.resolve({ 
     id, 
     read: false, 
     text: `Feathers is great!`, 
     createdAt: new Date().getTime() 
     }); 
    } else if (id === "2") { 
     console.log(id);  
     var badRequest = new errors.BadRequest('http 400 bad request'); 
     return Promise.reject(badRequest); 
    } else if (id === "3") {  
     console.log(id);  
     var generalError = new errors.GeneralError('Http 500 general error'); 
     return Promise.reject(generalError); 
    } 

    } 
}); 

app.listen(3030); 

feathers-errors module