节点js中的Pdf下载功能 [英] Pdf download functionality in node js
问题描述
我们正在使用此代码下载pdf文件,但我们遇到了问题。我想当我点击这条路线然后pdf文件将下载。
但是当我在postman中点击这个api并点击下载按钮然后pdf文件下载。所以我想下载包含数据的pdf文件。
我尝试过:
router.get('/ demo',function(req,res){
async function getinvoicelist(){
var chunks = [];
var options = {method:'GET',
url:'https://api.fortnox.se/3/invoices/ 31 /预览',
请求(选项,功能(错误,响应,正文){
console.log(正文);
});
%PDF-1.4
%
3 0 obj
<< / Length 1438 / Filter / FlateDecode>> stream
xYr6 +Ɍ3SxXڭHI M2 + STBN>有?!_ / p〜^< H? ?N 10 XTI} T,&安培;????kgxU | *҂GkJPSH#13וו)。? ` ? /
通过AJAX请求下载文件是tric KY。您可能能够使用createObjectURL
来执行此操作:
请求(选项) , function (错误,响应){
var blob = new Blob([response],{type:' application / pdf' });
var url = window .URL.createObjectURL(blob);
var link = document .createElement( ' a');
link.href = url;
link.download = Preview.pdf;
document .body .appendChild(link);
link.click();
documen吨跨度> .body.removeChild(联系);
// 建议:在一段时间后撤销对象URL以释放资源。
// 无法知道下载何时完成。
setTimeout( function (){ window .URL.revokeObjectURL(url);}, 60000 跨度>);
});
正在下载来自Ajax POST请求的文件 [ ^ ]
Javascript - 使用AJAX下载文件并显示Progess Bar [ ^ ]
我可以使用... createObjectURL [ ^ ]
我可以使用... Blob [ ^ ]
We are using this code to download the pdf file but we are getting problem. i want when i hit this route then pdf file will download.
But when i hit this api in postman and click on the download button then pdf file download. So i wnat to download the pdf file with data.
What I have tried:
router.get('/demo',function (req,res){
async function getinvoicelist(){
var chunks = [];
var options = { method: 'GET',
url: 'https://api.fortnox.se/3/invoices/31/preview',
request(options, function (error, response, body) {
console.log(body);
});
%PDF-1.4
%����
3 0 obj
<</Length 1438/Filter/FlateDecode>>stream
x��Y�r�6��+�Ɍ3S�xXڭ�h���IM���STB�n>�_�/p~!�^<H��N�xti���}��T�,��&k��g���xU|*҂�Gk�JPSH#13�װ�).�?�����`�������/��
Downloading files via AJAX requests is tricky. You might be able to usecreateObjectURL
to do this:
request(options, function (error, response) { var blob = new Blob([response], { type: 'application/pdf' }); var url = window.URL.createObjectURL(blob); var link = document.createElement('a'); link.href = url; link.download = "Preview.pdf"; document.body.appendChild(link); link.click(); document.body.removeChild(link); // Recommended: revoke the object URL after some time to free up resources. // There is no way to know when the download is complete. setTimeout(function() { window.URL.revokeObjectURL(url); }, 60000); });
Downloading files from Ajax POST Requests[^]
Javascript - Downloading Files with AJAX and Showing a Progess Bar[^]
Can I use... createObjectURL[^]
Can I use... Blob[^]
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