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s3.js
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s3.js
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const AWS = require('aws-sdk'),
config = require('dotenv').config()
zlib = require('zlib'),
fs = require('fs'),
getUri = require('get-uri'),
Promise = require('bluebird'),
Logger = require('./logger'),
debug = false
let s3Stream = {}
let s3Utils = {
checkEnvReqs : function () {
// Check Config for required key value pairs
if (!process.env.AWS_ACCESS_KEY) {
Logger.error('! AWS_ACCESS_KEY required as environmental variable')
return false
}
else if (!process.env.AWS_SECRET_KEY) {
Logger.error('! AWS_SECRET_KEY required as environmental variable')
return false
}
else if (!process.env.S3_BUCKET_NAME) {
Logger.error('! S3_BUCKET_NAME required as environmental variable')
return false
}
else if (!process.env.AWS_MAX_PART_SIZE) {
Logger.error('! AWS_MAX_PART_SIZE required as environmental variable')
return false
}
else if (!process.env.AWS_MAX_CONCURRENT_PARTS) {
Logger.error('! AWS_MAX_CONCURRENT_PARTS required as environmental variable')
return false
}
else return true
},
setAwsConfig : function () {
AWS.config.update({
accessKeyId: process.env.AWS_ACCESS_KEY,
secretAccessKey: process.env.AWS_SECRET_KEY
})
s3Stream = require('s3-upload-stream')(new AWS.S3())
},
putToBucket : function (assetUri, folderName, contentType) {
Logger.info('Put to AWS : ', assetUri)
let putP = new Promise((resolve,reject) => {
const filename = assetUri.substring(assetUri.lastIndexOf('/')+1),
keyPath = (folderName) ? folderName + '/' + filename : filename
Logger.info('Upload with Keypath : ', keyPath)
let upload = s3Stream.upload({
'Bucket': process.env.S3_BUCKET_NAME,
'Key': keyPath,
'ContentType' : contentType
})
// Additional configuration
upload.maxPartSize(process.env.AWS_MAX_PART_SIZE)
upload.concurrentParts(process.env.AWS_MAX_CONCURRENT_PARTS)
// Handle Errors
upload.on('error', function (err) {
Logger.error('! S3 Upload Error : ', err)
reject(err)
})
/* Handle progress. Example details object:
{ ETag: ''f9ef956c83756a80ad62f54ae5e7d34b'',
PartNumber: 5,
receivedSize: 29671068,
uploadedSize: 29671068 }
*/
upload.on('part', function (details) {
if (debug) Logger.info('Part Info : ', details)
})
/* Handle upload completion. Example details object:
{ Location: 'https://bucketName.s3.amazonaws.com/filename.ext',
Bucket: 'bucketName',
Key: 'filename.ext',
ETag: ''bf2acbedf84207d696c8da7dbb205b9f-5'' }
*/
upload.on('uploaded', function (details) {
Logger.info('----- S3 Upload Success -----',
'\n', details,
'\n----- end : s3 upload info -----')
resolve(details)
})
getUri(assetUri, function (err, rs) {
if (err) reject('Error getting asset stream ', err)
// Pipe the incoming filestream through compression, and up to S3.
if (rs && rs.pipe) rs.pipe(upload)
else reject('RS pipe issue')
})
})
return putP
}
}
// Setup s3 configuration if environmental configuration is OK
if (s3Utils.checkEnvReqs()) s3Utils.setAwsConfig()
module.exports = s3Utils