在节点中结合multer和tinypng API [英] Combine multer and tinypng API in node
问题描述
有人知道如何将 tinyPNG的API 与multer一起使用吗?这些文档看似简单:
var source = tinify.fromFile("unoptimized.jpg");
source.toFile("optimized.jpg");
尽管没有明确指示要去哪儿,尤其是在像这样复杂的事情中:
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var storage = multer.diskStorage(
{
destination: function (req, file, callback) {
callback(null, './uploads');
},
filename: function (req, file, callback) {
//use date to guarantee name uniqueness
callback(null, file.originalname + '-' + Date.now());
}
}
);
//.any() allows multiple file uploads
var upload = multer({ storage : storage}).any()
app.post('/api/photo', function(req,res){
upload(req,res,function(err) {
if(err) {
return res.end("Error uploading file.");
}
res.end("File is uploaded");
});
});
我打算在哪里拦截" multer上载的文件,以便可以使用tinyPNG压缩它?
提前感谢您的帮助!
使用以下基本示例更改上传的照片/图库文件:
// Import express and multer.
var express = require('express');
var multer = require('multer');
// Setup upload.
var upload = multer({ dest: 'uploads/' });
var multipleFiles = upload.fields([{ name: 'photo', maxCount: 1 },
{ name: 'gallery', maxCount: 8 }]);
// Setup tinify.
var tinify = require("tinify");
tinify.key = "YOUR_API_KEY";
// Get request handler for '/' path.
var app = express();
app.get('/', function (req, res) {
res.setHeader("Content-Type", "text/html");
res.end(
"<form action='/api/photo' method='post' enctype='multipart/form-data'>" +
"<input type='file' name='photo' />" +
"<input type='file' name='gallery' multiple/>" +
"<input type='submit' />" +
"</form>"
);
});
// Upload file handler with '/api/photo' path.
app.post('/api/photo', multipleFiles, function (req, res) {
req.files['gallery'].forEach(function(file) {
// Your logic with tinify here.
var source = tinify.fromFile(file.path);
source.toFile(file.path + "_optimized.jpg");
});
res.end("UPLOAD COMPLETED!");
});
可以随意更改express
中间件的方式,只需确保使用upload.fields
并使用tinify.key = "YOUR_API_KEY";
- https://github.com/expressjs/multer
- https://tinypng.com/developers/reference/nodejs#compressing-images
does anyone know how to use tinyPNG's API with multer? The docs seem deceptively simple:
var source = tinify.fromFile("unoptimized.jpg");
source.toFile("optimized.jpg");
though there's no clear indication of where this is meant to go, especially in something as convoluted as this:
var storage = multer.diskStorage(
{
destination: function (req, file, callback) {
callback(null, './uploads');
},
filename: function (req, file, callback) {
//use date to guarantee name uniqueness
callback(null, file.originalname + '-' + Date.now());
}
}
);
//.any() allows multiple file uploads
var upload = multer({ storage : storage}).any()
app.post('/api/photo', function(req,res){
upload(req,res,function(err) {
if(err) {
return res.end("Error uploading file.");
}
res.end("File is uploaded");
});
});
Where am I meant to "intercept" the file uploaded by multer so that I can compress it with tinyPNG?
Thanks in advance for the help!
Use following basic sample that changes uploaded photo/gallery files:
// Import express and multer.
var express = require('express');
var multer = require('multer');
// Setup upload.
var upload = multer({ dest: 'uploads/' });
var multipleFiles = upload.fields([{ name: 'photo', maxCount: 1 },
{ name: 'gallery', maxCount: 8 }]);
// Setup tinify.
var tinify = require("tinify");
tinify.key = "YOUR_API_KEY";
// Get request handler for '/' path.
var app = express();
app.get('/', function (req, res) {
res.setHeader("Content-Type", "text/html");
res.end(
"<form action='/api/photo' method='post' enctype='multipart/form-data'>" +
"<input type='file' name='photo' />" +
"<input type='file' name='gallery' multiple/>" +
"<input type='submit' />" +
"</form>"
);
});
// Upload file handler with '/api/photo' path.
app.post('/api/photo', multipleFiles, function (req, res) {
req.files['gallery'].forEach(function(file) {
// Your logic with tinify here.
var source = tinify.fromFile(file.path);
source.toFile(file.path + "_optimized.jpg");
});
res.end("UPLOAD COMPLETED!");
});
Feel free to change express
middleware how you need it, just make sure you use upload.fields
and authenticate using tinify.key = "YOUR_API_KEY";
- https://github.com/expressjs/multer
- https://tinypng.com/developers/reference/nodejs#compressing-images
这篇关于在节点中结合multer和tinypng API的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!