Javascript 使用hapi从NodeJS服务器下载文件
我想使用hapi创建一个文件下载API。Javascript 使用hapi从NodeJS服务器下载文件,javascript,node.js,hapijs,Javascript,Node.js,Hapijs,我想使用hapi创建一个文件下载API。 如果不使用res.download(),如何使用reply()?您需要创建一个缓冲区,然后设置回复的标题和编码 let buf = new Buffer(xls, 'binary'); return reply(buf) .encoding('binary') .type('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') .header('c
如果不使用
res.download()
,如何使用reply()
?您需要创建一个缓冲区,然后设置回复的标题和编码
let buf = new Buffer(xls, 'binary');
return reply(buf)
.encoding('binary')
.type('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
.header('content-disposition', `attachment; filename=test-${new Date().toISOString()}.xlsx;`);
您还可以从stream下载文件
const { Readable } = require('stream');
handler: async (request: any, h: Hapi.ResponseToolkit) => {
let stream = Fs.createReadStream(filePath);
let streamData = new Readable().wrap(stream);
return h.response(streamData)
.header('Content-Type', contentType)
.header('Content-Disposition', 'attachment; filename= ' + fileName);
}
要获取文件的内容类型,可以参考:
getContentType(fileExt) {
let contentType;
switch (fileExt) {
case 'pdf':
contentType = 'application/pdf';
break;
case 'ppt':
contentType = 'application/vnd.ms-powerpoint';
break;
case 'pptx':
contentType = 'application/vnd.openxmlformats-officedocument.preplyentationml.preplyentation';
break;
case 'xls':
contentType = 'application/vnd.ms-excel';
break;
case 'xlsx':
contentType = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet';
break;
case 'doc':
contentType = 'application/msword';
break;
case 'docx':
contentType = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document';
break;
case 'csv':
contentType = 'application/octet-stream';
break;
case 'xml':
contentType = 'application/xml';
break;
}
return contentType;
}