小编use*_*827的帖子

我在 SendGrid 中有一个动态模板，使用 Postman 向https://api.sendgrid.com/v3/mail/send发送 POST 请求

具有以下 json：

{
    "personalizations": [{
        "to": [{
            "email": "dariusgoore@gmail.com",
            "name": "test"
        }],
        "dynamic_template_data":{
            "name":"John",
            "text": "Someone just added a new post!",
        }
    }],
    "from": {
        "email": "team@writerboards.com",
        "name": "test"
    },
    "reply_to": {
        "email": "dariusgoore@gmail.com",
        "name": "test"
    },
    "template_id": "d-c8f201dd360d40bc877da13a1a0b36b1"
}

可以使用模板发送电子邮件。

但是，我似乎无法从 Express 发送类似的请求。

这是我调用 SendGrid 的路线（端点响应 cron 作业）：

const express = require('express');
const User = require('../models/User');
const Act = require('../models/Act');
const sgMail = require('@sendgrid/mail');
sgMail.setApiKey(process.env.SENDGRID_API_KEY);

let router = express.Router();

router.get('/', async …

按照此处的 hartle 教程进行操作：https ://www.learnenough.com/action-cable-tutorial#sec-upgrading_to_action_cable

当我进行到步骤 4 时，添加 ActionCable 时聊天消息不会传输，并且出现错误：

User Load (0.4ms)  SELECT  "users".* FROM "users" WHERE "users"."id" IS NULL LIMIT ?  [["LIMIT", 1]]
An unauthorized connection attempt was rejected

这是相关文件：

room_channel.rb:

class RoomChannel < ApplicationCable::Channel
  def subscribed
    stream_from "room_channel"
  end

  def unsubscribed
    # Any cleanup needed when channel is unsubscribed
  end
end

消息控制器：

  class MessagesController < ApplicationController
  before_action :logged_in_user
  before_action :get_messages

  def index
  end

  def create
    message = current_user.messages.build(message_params)
    if message.save
      ActionCable.server.broadcast 'room_channel',
                               message: render_message(message)
      message.mentions.each do |mention| …

在 ExpressJS 中，我想下载之前上传到 Amazon S3 存储桶的文件。

这是我当前的路线：

const express = require('express');
const AWS = require('aws-sdk');
const mammoth = require('mammoth');
const fs = require('fs').promises
const path = require('path')
const router = express.Router();

router.put('/:id/download', async (req, res, next) => {
  console.log('hitting download route')

  var id = req.params.id;
  let upload = await Upload.query().findById( id ).eager('user');

  console.log("file to download is: ", upload.name)

  AWS.config.update({
    accessKeyId: process.env.AWS_ACCESS_KEY_ID,
    secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
  });

  const s3 = new AWS.S3();


  // var fileStream = fs.createWriteStream('/tmp/file.docx');
  // var s3Stream = s3.getObject(params).createReadStream();

  const …