node.js - 使用 Meteor + Multer 接收多部分表单数据?
问题描述
我有express
用于从提供者接收多部分表单数据的面向示例代码:
const multer = require('multer');
const callback = multer();
app.post('/callback', callback.single('json'), (req, res) => {
res.status(200);
res.send('API Event Received');
const data = req.body.json;
const events = JSON.parse(data);
const eventType = events.event.event_type;
const signatureRequestId = events.signature_request.signature_request_id;
switch(eventType) {
case 'signature_request_sent':
console.log(`Signature request ${signatureRequestId} has been sent.`);
break;
case 'signature_request_viewed':
console.log(`Signature request ${signatureRequestId} has been viewed.`);
break;
case 'signature_request_downloadable':
console.log(`Signature request ${signatureRequestId} is downloadable.`);
break;
case 'signature_request_signed':
console.log(`Signature request ${signatureRequestId} has been signed.`);
break;
case 'signature_request_declined':
console.log(`Signature request ${signatureRequestId} has been declined.`);
break;
default:
console.log('');
break;
}
});
在这篇 SO 帖子中,我看到了一个将 Meteor 连接到 Multer 以接收图像文件的示例:
if (Meteor.isServer) {
Meteor.startup(function () {
multer({ dest: './uploads/',
rename: function (fieldname, filename) {
return filename+Date.now();
},
onFileUploadStart: function (file) {
console.log(file.originalname + ' is starting ...');
},
onFileUploadComplete: function (file) {
console.log(file.fieldname + ' uploaded to ' + file.path);
var fileName = file.name;
var done=true;
}
})
});
}
...但我还没有想出如何组合这两个代码示例。
在 Meteor 中使用 Multer 接收多部分表单数据的正确方法是什么?
更新:一位评论者问我到目前为止尝试了什么。我有这个创建常规单部分 REST 端点的 Meteor 代码:
WebApp.connectHandlers.use('/ReceiveCalls', (req, res, next) => {
console.log('received message');
console.log( req);
console.log(res);
res.writeHead(200);
});
上面显示的 Multer 示例包含一个用于接收图像的目标文件夹,但它没有显示如何创建端点。Meteor 代码展示了如何创建 REST 端点,但我还看不到如何将它与 Multer 代码结合使用。我敢肯定这很容易,但我还没有弄清楚如何去做。
解决方案
这是答案,来自 Meteor 论坛上的 coagmano:
注意:如果它可能对其他人有用,提供者是 HelloSign。这是我完成的代码。
//TELL HELLOSIGN THE CALLBACK URL
const hellosign = require('hellosign-sdk')({key: 'xxxxx'});
hellosign.account.update({
callback_url: 'https://example.com/myCallBackURL'
}).then((res) => {
console.log('success setting hellosign account callback url');
}).catch((err) => {
console.log('error setting hellosign account callback url');
console.log(err)
});
//REST API FOR HELLOSIGN
const callback = multer({dest: './uploads'});
// Mount the middleware first so it's run first
WebApp.connectHandlers.use('/myCallBackURL', callback.single('json'));
// Then mount the user handler
WebApp.connectHandlers.use('/myCallBackURL', (req, res, next) => {
res.setHeader('Content-Type', 'text/html');
res.setHeader('X-Foo', 'bar');
res.writeHead(200, { 'Content-Type': 'text/plain' });
res.end('Hello API Event Received');
const data = req.body.json;
const events = JSON.parse(data);
const eventType = events.event.event_type;
const signatureRequestId = events.signature_request.signature_request_id;
switch (eventType) {
case 'signature_request_sent':
console.log(`Signature request ${signatureRequestId} has been sent.`);
break;
case 'signature_request_viewed':
console.log(`Signature request ${signatureRequestId} has been viewed.`);
break;
case 'signature_request_downloadable':
console.log(`Signature request ${signatureRequestId} is downloadable.`);
break;
case 'signature_request_signed':
console.log(`Signature request ${signatureRequestId} has been signed.`);
break;
case 'signature_request_declined':
console.log(`Signature request ${signatureRequestId} has been declined.`);
break;
default:
console.log('');
break;
}
});
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