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aws.js
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aws.js
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const AWS = require('aws-sdk');
const uuidV4 = require('uuid/v4');
var s3 = new AWS.S3();
const _getExtension = (data)=> {
const extensions = data.split(';')[0].split('/');
return extensions[extensions.length - 1];
};
const _generateDeleteParams = (Key)=> {
const Bucket = process.env.AWS_BUCKET;
return {
Bucket,
Key,
};
};
const _generateParams = (data)=> {
const Bucket = process.env.AWS_BUCKET;
const extension = _getExtension(data);
const Body = new Buffer(data.replace(/^data:image\/\w+;base64,/, ''), 'base64');
const ContentType = `image/${extension}`;
const ACL = 'public-read';
const Key = `${uuidV4()}.${extension}`;
return {
Bucket,
Key,
Body,
ContentType,
ACL
};
};
const destroy = (key)=> {
const promise = new Promise((resolve, reject)=> {
if(!key){
return resolve();
}
const params = _generateDeleteParams(key);
const { Bucket, Key } = params;
s3.createBucket({ Bucket }, function(err) {
if (err)
return reject(err);
s3.deleteObject(params, function(err) {
if (err)
return reject(err);
resolve(Key);
});
});
});
return promise;
};
const upload = (data)=> {
const promise = new Promise((resolve, reject)=> {
if(!data){
return resolve();
}
const params = _generateParams(data);
const { Bucket, Key } = params;
s3.createBucket({ Bucket }, function(err) {
if (err)
return reject(err);
s3.putObject(params, function(err) {
if (err)
return reject(err);
resolve(Key);
});
});
});
return promise;
};
module.exports = {
upload,
destroy
};