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[英]How to read content of JSON file uploaded to google cloud storage using node js
[英]How to set the Content-Type for a file being uploaded to Google Cloud Storage using node.js
我正在编写代码,使用gcloud-node将使用node-fetch获取的文件上传到Google云端存储中的存储桶。
到目前为止一切正常,但我无法找到如何在GCloud上设置文件的Content-Type
,否则文件将作为application/octet-stream
下载。
这是我到目前为止的代码:
function saveImage(response, destFile) {
return new Promise((resolve, reject) => {
if (response.status !== 200) {
reject(new Error('Bad Response'));
}
// How do I set this on the file uploaded to the bucket?
const contentType = response.headers.get('Content-Type');
try {
const file = bucket.file(destFile);
const writeStream = file.createWriteStream();
writeStream.on('error', err => {
reject(err);
});
writeStream.on('finish', () => {
resolve(getPublicUrl(destFile));
});
response.body.pipe(writeStream);
} catch (e) {
reject(e);
}
});
}
事实证明,文件中有一个setMetadata方法,您可以调用Content-Type作为参数。 以下是工作代码的样子:
function saveImage(response, destFile) {
return new Promise((resolve, reject) => {
if (response.status !== 200) {
reject(new Error('Bad Response'));
}
const contentType = response.headers.get('Content-Type');
try {
const file = bucket.file(destFile);
const writeStream = file.createWriteStream({
metadata:{
contentType: contentType
}
});
writeStream.on('error', err => {
reject(err);
});
writeStream.on('finish', () => {
resolve(getPublicUrl(destFile));
});
response.body.pipe(writeStream);
} catch (e) {
reject(e);
}
});
}
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