我有一个正在调度的动作，它正在触发多个远程方法并返回'TALK_SUBMIT_REJECTED'然而奇怪的是，我得到的所有数据仍然会被返回并按预期更新存储。然而，我在这个过程中遇到了这两个错误：xhr.js:178 POST http://localhost:3000/api/talks/talkSubmit 500
(Internal Server Error) createError.js:16 Uncaught (in promise) Error: Request failed with
status code 500
at e.exports (createError.js:16)
at e.exports (settle.js:18)
at XMLHttpRequest.m.(:3000/anonymous function)
(http://localhost:3000/bundle.js:6:2169)
我已经扔了二十几个console.logs记录我发送和接收的所有数据以及按预期返回的所有内容。
我为这篇长篇文章提前道歉，但我一直在努力解决这个问题。简要总结我的代码正在做什么：我有一个表单，在提交时，触发一个启动一系列远程方法的操作。这是第一种方法：
function talkSubmit(speakerInfo, talkInfo, date) {
return new Promise((resolve, reject) => {
const { Talk, Speaker, Event } = app.models;
return Speaker.create(speakerInfo)
.then(response => {
let speakerId = response.id
return getMeetups()
.then(meetups => {
const index = meetups.findIndex((item) =>
item.date == date);
let name = meetups[index].name;
let details = meetups[index].description;
let meetupId = meetups[index].meetupId;
if (index === -1)
return reject(new Error('NO meetup with that
date found!'));
return Event.findOrCreate({ date, name, details,
meetupId })
.then(event => {
let eventId = event[0].id
return Talk.create({ ...talkInfo,
speakerId, eventId })
.then(talk => resolve(talk))
.catch(err => console.log(err))
})
.catch(err => reject(err))
})
.catch(err => reject(err))
})
.catch(err => reject(err))
})
}
module.exports = { talkSubmit };
//this is the get meetups function that is called by talkSubmit
function getMeetups() {
return new Promise((resolve, reject) => {
let currentDate = new Date();
currentDate.setMonth(currentDate.getMonth() + 3);
const date ='${ currentDate.getFullYear() } -${
currentDate.getMonth() } -${
currentDate.
getDay()
} ';
axios.get(`https://api.meetup.com/sandiegojs/events?
no_later_than = ${ date } `)
return resolve(response.data.map(event => ({
meetupId: event.id,
name: event.name,
date: event.local_date,
time: event.local_time,
link: event.link,
description: event.description,
})))
.catch(err => reject(new Error('getMeetups failed to get SDJS
meetups')))
})
}
module.exports = { getMeetups };
//This is the after remote method that is triggered when talkSubmit is
//completed.
Talk.afterRemote('talkSubmit', function (ctx, modelInstance, next) {
const speakerId = ctx.result.speakerId;
const eventId = ctx.result.eventId;
const approved = false;
const pending = true;
formatTalkForEmail(speakerId, eventId)
.then((response) => {
const speakerName = response.speakerName;
const speakerEmail = response.speakerEmail;
const meetupTitle = response.meetupTitle;
const meetupDate = response.meetupDate;
sendEmailToSpeaker(process.env.ADMIN_EMAIL, approved,
pending, speakerEmail, speakerName, meetupTitle, meetupDate)
.then(() => next())
.catch(err => next(err));
})
.catch(err => next(err));
});
//this is the formatTalkForEmail method called in the remote method
function formatTalkForEmail(speakerId, eventId) {
return new Promise((resolve, reject) => {
if (speakerId == undefined) {
return reject(new Error('speakerId is undefined'));
}
if (eventId == undefined) {
return reject(new Error('eventId is undefined'));
}
const { Speaker, Event } = app.models;
Speaker.findById(speakerId)
.then(speaker => {
const speakerName = speaker.speakerName;
const speakerEmail = speaker.speakerEmail
return Event.findById(eventId)
.then(selectedEvent => {
const meetupTitle = selectedEvent.name;
const meetupDate = selectedEvent.date;
resolve({
speakerName,
speakerEmail,
meetupTitle,
meetupDate
})
})
.catch(err => reject( err ))
})
.catch(err => reject(err))
})
}
module.exports = { formatTalkForEmail };
//and finally this is the sendEmailToSpeaker method:
function sendEmailToSpeaker(adminEmail, approved, pending,
speakerEmail, speakerName, meetupTitle, meetupDate) {
return new Promise((resolve, reject) => {
let emailContent;
if (approved && !pending) {
emailContent = `Congratulations! Your request to speak at
${ meetupTitle } on ${ meetupDate } has been approved.`
}
if (!approved && !pending) {
emailContent = `We're sorry your request to speak at
${ meetupTitle } on ${ meetupDate } has been denied.`
}
if (pending) {
emailContent = `Thank you for signing up to speak
${ meetupTitle } on ${ meetupDate }.You will be notified as soon as
a
SDJS admin reviews your request.`
sendEmailToAdmin(adminEmail, meetupDate, meetupTitle,
speakerEmail, speakerName)
.catch(err => console.log(err));
}
const email = {
to: speakerEmail,
from: adminEmail,
subject: 'SDJS Meetup Speaker Request',
templateId: process.env.ADMIN_SPEAKER_EMAIL_TEMPLATE,
dynamic_template_data: {
emailContent: emailContent,
sdjsBtn: false,
title: 'SDJS Meetup Speaker Request'
}
}
sgMail.send(email)
.then(() => resolve({ email }))
.catch(err => {
console.log(err);
reject(err);
});
})
}
总而言之，我不知道talkSubmit的哪一部分正在抛出这两个错误，但是两封电子邮件都会自动发送，并且尽管初始操作创建者返回被拒绝，但商店正在使用所有正确的数据进行更新。我感谢任何人都可以提供帮助。
好的，我认为主要问题在于：
axios.get(`https://api.meetup.com/sandiegojs/events?no_later_than = ${ date } `)
return resolve(response.data.map(event => ({
meetupId: event.id,
name: event.name,
date: event.local_date,
time: event.local_time,
link: event.link,
description: event.description,
})))
它应该看起来像那样（我建议提取映射方法）：
axios.get(`https://api.meetup.com/sandiegojs/events?no_later_than = ${ date} `)
.then( response => resolve(response.data.map(event => ({
meetupId: event.id,
name: event.name,
date: event.local_date,
time: event.local_time,
link: event.link,
description: event.description,
}))))
.catch(err => reject(new Error('getMeetups failed to get SDJS meetups')))
关于Promises的几句话。你可以像这样链接它们：
method()
.then(method2())
.then(method3())
.then(method4())
...
.catch(err =>...
我也不明白为什么你在return new Promise((resolve, reject) => {中包装方法的内容我认为在你的情况下不需要你所以你可以将talkSubmit方法更改为类似的东西（这只是一个草稿，我建议从then块中提取方法）
function talkSubmit(speakerInfo, talkInfo, date) {
const { Talk, Speaker, Event } = app.models;
return getMeetups()
.then(meetups => {
const index = meetups.findIndex((item) => item.date == date);
let name = meetups[index].name;
let details = meetups[index].description;
let meetupId = meetups[index].meetupId;
if (index === -1)
return reject(new Error('NO meetup with that date found!'));
return Promise.all([
Event.findOrCreate({
date, name, details,
meetupId
}),
Speaker.create(speakerInfo)])
})
.then(([event, speaker]) => {
let eventId = event[0].id
let speakerId = speaker.id
return Talk.create({
...talkInfo,
speakerId, eventId
})
})
}