Nodejs S3 Delete Multiple Objects Error - arrays

Question

I am trying to bulk delete my s3 objects that are associated with one specific blog record in my database, but I'm getting hung up on how to pass the array to my params object to be used in the s3.deleteObjects method, but I'm held up on this error: Check with error message InvalidParameterType: Expected params.Delete.Objects[0].Key to be a string. I feel like it could be related to not having a loop at some point in the process or maybe the format of the values being passed to my s3File array.
Here is the my routing:
.delete(function(req, res){
models.File.findAll({
where: {
blogId: blog.blogId
}
}).then(function(file){
var s3Files = [];
function s3Key(link){
var parsedUrl = url.parse(link);
var fileName = parsedUrl.path.substring(1);
return fileName;
}
for(var k in file){
console.log('Here are each files ' + file[k].fileName);
s3Files.push(s3Key(file[k].fileName));
}
console.log('Here are the s3Files ' + s3Files);
//GOTTEN TO THIS POINT WITHOUT AN ERROR
aws.config.update({accessKeyId: process.env.AWS_ACCESS_KEY, secretAccessKey: process.env.AWS_SECRET_KEY, region: process.env.AWS_REGION});
//var awsKeyPath = s3Key(file.fileName);
var s3 = new aws.S3();
var options = {
Bucket: process.env.AWS_BUCKET,
Delete: {
Objects: [{
Key: s3Files
}],
},
};
s3.deleteObjects(options, function(err, data){
if(data){
console.log("File successfully deleted");
} else {
console.log("Check with error message " + err);
}
});
});
Here is the output from console.log('Here are each files ' + file[k].fileName);:
Here are each files https://local-bucket.s3.amazonaws.com/1/2017-02-12/screen_shot_2017-02-01_at_8_25_03_pm.png
Here are each files https://local-bucket.s3.amazonaws.com/1/2017-02-13/test.xlsx
Here are each files https://local-bucket.s3.amazonaws.com/1/2017-02-13/screen-shot-2017-02-08-at-8.23.37-pm.png
Here is the output from console.log('Here are the s3Files ' + s3Files);:
Here are the s3Files 1/2017-02-12/screen_shot_2017-02-01_at_8_25_03_pm.png,1/2017-02-13/test.xlsx,1/2017-02-13/screen-shot-2017-02-08-at-8.23.37-pm.png
Here is the error message:
Check with error message InvalidParameterType: Expected params.Delete.Objects[0].Key to be a string

Answer 1

Key should be a string. You should use array of Object to Objects.
Use this code :
var objects = [];
for(var k in file){
objects.push({Key : file[k].fileName});
}
var options = {
Bucket: process.env.AWS_BUCKET,
Delete: {
Objects: objects
}
};

Answer 2

Change your array as an object
const objects = [
{Key: 'image1.jpg'},
{Key: 'image2.jpg'}
]
Add a new item to the list
for(var k in file){
objects.push({Key : file[k].fileName});
}
Set the array as Objects value in parameters
const options = {
Bucket: process.env.BUCKET,
Delete: {
Objects: objects,
Quiet: false
}
};
Now delete objects
s3.deleteObjects(options, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else console.log(data); // successful response
});
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