如何将文件上传到AWS中的预签名URL？
如何将文件上传到AWS中的预签名URL？
提问于 2018-08-04 05:28:27
Problem
我有一个来自AWS的预签名URL。我该怎么做呢？
(我必须使用预签名的URL。我将调用createUpload API for Device Farm，它将返回1。)
AWS Documentation gives examples on how to do this in Java, .NET and Ruby。缺少JavaScript。
尝试1
const axios = require('axios');
const FormData = require('form-data');
function uploadFile(url, file) {
if (typeof url !== 'string') {
throw new TypeError(`Expected a string, got ${typeof url}`);
}
const formData = new FormData();
formData.append(file,file)
const config = {
headers: {
'content-type': 'multipart/form-data'
}
}
return axios.post(url, formData,config)
}然而，我得到了这个错误：
我们计算的请求签名与您提供的签名不匹配。检查您的密钥和签名方法。
尝试2
然而，我不想依赖于cURL。
const Promise = require('bluebird');
const cmd = require('node-cmd');
const getAsync = Promise.promisify(cmd.get, { multiArgs: true, context: cmd });
async function uploadFile(url, fileName) {
await throwIfCurlNotInstalled();
console.log('uploadFile: Uploading file', {
fileName
});
const command = `curl -T ${fileName} "${url}"`;
try {
let result = await getAsync(command);
result.forEach(line => console.log(line));
console.log('uploadFile: File uploaded', {
fileName,
});
} catch (e) {
console.error('uploadFile: Error uploading file', {
fileName
});
console.error(e);
}
}
async function throwIfCurlNotInstalled() {
try {
await getAsync(`curl -V`);
} catch (e) {
throw 'curl is not installed';
}
}回答 1
Stack Overflow用户
回答已采纳
发布于 2018-08-04 05:28:27
解决方案出人意料地简单：
const rp = require('request-promise');
const fs = require('fs');
async function uploadFile(url, fileName) {
let options = {
method: 'PUT',
uri: url,
body: fs.readFileSync(fileName),
};
return rp(options);
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/51680281
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