Pulling images in from S3 bucket in Meteor - amazon-web-services

I saw a lot of docs on how to upload files to S3 but my question is kind of reversed. I have a meteor app and i set up collectionFS in it. Now I have an S3 bucket with header images for each document inside my app. How do i reference it for an individual document? (if it helps, the slug for each document is correspondent to the image title slug.jpg in the bucket).
so far I have
var imageStore = new FS.Store.S3("careerImages", {
// region: "my-s3-region", //optional in most cases
accessKeyId: "my-value", //required if environment variables are not set
secretAccessKey: "my-value", //required if environment variables are not set
bucket: "ryf2.5", //required
// ACL: "myValue", //optional, default is 'private', but you can allow public or secure access routed through your app URL
folder: "header_images", //optional, which folder (key prefix) in the bucket to use
// The rest are generic store options supported by all storage adapters
// transformWrite: myTransformWriteFunction, //optional
// transformRead: myTransformReadFunction, //optional
// maxTries: 1 //optional, default 5
});
CareerImages = new FS.Collection("careerImages", {
stores: [imageStore]
});
and now i just wanna be able to figure out a way to display them in my templates.

Related

Uploading item in Amazon s3 bucket from React Native with user's info

I am uploading an image on AWS S3 using React Native with AWS amplify for mobile app development. Many users use my app.
I want that whenever any user uploads the image on S3 through the mobile app, I want to get user's ID also along with that image. So that later I can recognise the images on S3 that which image belongs to which user. How can I achieve this?
I am using AWS Auth Cognito for user registration/ Sign-In. I came to know that whenever a user is registered in AWS cognito (for the first time), the user gets a unique ID in the pool. Can I use this user ID to be passed alongwith image whenever user uploads image?
Basically I want to have some form of functionality so that I can track back to the user who uploaded the image on S3. This is because after the image is uploaded on S3, I later want to process this image and send the result back ONLY to the user of the image.
You can store the data in S3 in structure similar to the one below:
users/
123userId/
image1.jpeg
image2.jpeg
anotherUserId456/
image1.png
image2.png
Then, if you need all files from given user, you can use ListObjects API in S3 lambda - docs here
// for lambda function
const AWS = require('aws-sdk');
const s3 = new AWS.S3();
const objects = await s3.listObjectsV2({
Bucket: 'STRING_VALUE', /* required */
Delimiter: 'STRING_VALUE',
EncodingType: url,
ExpectedBucketOwner: 'STRING_VALUE',
Marker: 'STRING_VALUE',
MaxKeys: 'NUMBER_VALUE',
Prefix: 'STRING_VALUE',
RequestPayer: requester
}).promise()
objects.forEach(item => {
console.log(item
)});
Or if you are using S3 Lambda trigger, you can parse userId from "key" / filename in received event in S3 lambda (in case you used structure above).
{
"key": "public/users/e1e0858f-2ea1-90f892b68e0c/item.jpg",
"size": 269582,
"eTag": "db8aafcca5786b62966073f59152de9d",
"sequencer": "006068DC0B344DA9E9"
}
Another option is to write "userId" into metadata of the file that will be uploaded to S3.
You can pass "sub" property from Cognito's currently logged user, so in S3 Lambda trigger function you will get the userId from metadata.
import Auth from "#aws-amplify/auth";
const user = await Auth.currentUserInfo();
const userId = user.attributes.sub;
return userId;
// use userId from Cognito and put in into custom metadata
import {Storage} from "aws-amplify";
const userId = "userIdHere"
const filename = "filename" // or use uuid()
const ref = `public/users/#{userId}/${filename}`
const response = await Storage.put(ref, blob, {
contentType: "image/jpeg",
metadata: {userId: userId},
});
AWS Amplify can do all above automatically (create folder structures, etc.), if you do not need any special structure how files are stored = docs here.
You only need to configure Storage ('globally' or per action) with "level" property.
Storage.configure({ level: 'private' });
await Storage.put(ref, blob, {
contentType: "image/jpeg",
metadata: {userId: userId},
});
//or set up level only for given action
const ref= "userCollection"
await Storage.put(ref, blob, {
contentType: "image/jpeg",
metadata: {userId: userId},
level: "private"
});
So, for example, if you use level "private", file "124.jpeg" will be stored in S3 at
"private/us-east-1:6419087f-d13e-4581-b72e-7a7b32d7c7c1/userCollection/124.jpeg"
However, as you can see, "us-east-1:6419087f-d13e-4581-b72e-7a7b32d7c7c1" looks different than the "sub" in Cognito ("sub" property does not contain regions).
The related discussion is here, also with few workarounds, but basically you need to decide how you will manage user identification in your project on your own (if you use "sub" everywhere as userId, or you will go with another ID - I think it is called identityID and consider that as userId).
PS: If you are using React Native, I guess you will go with Push Notification for sending updates from backend - if that is the case, I was doing something similar ("moderation control") - so I added another Lambda function, Cognito's Post-Confirmation Lambda, that creates user in DynamoDB with ID of Cognitos's "sub" property.
Then user can save token from mobile device needed for push notifications, so when the AWS Rekognition finished detection on the image that user uploaded, I queried DynamoDB and used SNS to send the notification to the end user.

Fetching multiple objects with same prefix from s3 bucket

I have multiple folders in an s3 bucket and each folder contains some .txt files. Now I want to fetch just 10 .txt files from a given folder using javascript API.
For eg: the path is something like this
s3bucket/folder1/folder2/folder3/id
Now folder id is the one containing multiple .txt files. There are multiple id folders inside folder3. I want to pass id and get 10 s3 objects which have id as prefix. Is this possible using listObjectsV2? How do I limit the response to just 10 objects.
____obj1.txt
______id1----|____obj2.txt
| _____obj3.txt
|_____ id2---|____obj4.txt
s3bucket/folder1/folder2/folder3-| ____obj5.txt
|_____ id3---|____obj6.txt
So if I pass
var params= {Bucket:"s3bucket",Key:"folder1/folder2/folder3/id1"}
I should get obj1.txt and obj2.txt in response.
Which S3 method are you using? I suggest to use listObjectsV2 to achieve your goal. A possible call might look as the following
const s3 = new AWS.S3();
const { Contents } = await s3.listObjectsV2({
Bucket: 's3bucket',
Prefix: 'folder1/folder2/folder3/id1',
MaxKeys: 10
}).promise();
To get the object values you need to call getObject on each Key.
const responses = await Promise.all((Contents || []).map(({ Key }) => (
s3.getObject({
Bucket: 's3bucket',
Key
}).promise()
)));

Digital Ocean Spaces | Add expire date for files with s3cmd

I try add expire days to a file and bucket but I have this problem:
sudo s3cmd expire s3://<my-bucket>/ --expiry-days=3 expiry-prefix=backup
ERROR: Error parsing xml: syntax error: line 1, column 0
ERROR: not found
ERROR: S3 error: 404 (Not Found)
and this
sudo s3cmd expire s3://<my-bucket>/<folder>/<file> --expiry-day=3
ERROR: Parameter problem: Expecting S3 URI with just the bucket name set instead of 's3:////'
How to add expire days in DO Spaces for a folder or file by using s3cmd?
Consider configuring Bucket's Lifecycle Rules
Lifecycle rules can be used to perform different actions on objects in a Space over the course of their "life." For example, a Space may be configured so that objects in it expire and are automatically deleted after a certain length of time.
In order to configure new lifecycle rules, send a PUT request to ${BUCKET}.${REGION}.digitaloceanspaces.com/?lifecycle
The body of the request should include an XML element named LifecycleConfiguration containing a list of Rule objects.
https://developers.digitalocean.com/documentation/spaces/#get-bucket-lifecycle
The expire option is not implemented on Digital Ocean Spaces
Thanks to Vitalii answer for pointing to API.
However API isn't really easy to use, so I've done it via NodeJS script.
First of all, generate your API keys here: https://cloud.digitalocean.com/account/api/tokens
And put them in ~/.aws/credentials file (according to docs):
[default]
aws_access_key_id=your_access_key
aws_secret_access_key=your_secret_key
Now create empty NodeJS project, run npm install aws-sdk and use following script:
const aws = require('aws-sdk');
// Replace with your region endpoint, nyc1.digitaloceanspaces.com for example
const spacesEndpoint = new aws.Endpoint('fra1.digitaloceanspaces.com');
// Replace with your bucket name
const bucketName = 'myHeckingBucket';
const s3 = new aws.S3({endpoint: spacesEndpoint});
s3.putBucketLifecycleConfiguration({
Bucket: bucketName,
LifecycleConfiguration: {
Rules: [{
ID: "autodelete_rule",
Expiration: {Days: 30},
Status: "Enabled",
Prefix: '/', // Unlike AWS in DO this parameter is required
}]
}
}, function (error, data) {
if (error)
console.error(error);
else
console.log("Successfully modified bucket lifecycle!");
});

Adding BigCommerce products images from AWS S3

anyone else trying to Add products images using Signed AWS S3 urls.
The url end up having some additional attributes as &AWSAccessKeyId=AVEL2J32A6Q&Expires=1499769146&Signature=CDgIfiFlgDaD+0SHW1xvZ9A=
And something from this url affects the "BigCommerce" image parser and it returns error - The field 'image_file' is invalid.
Anyone has some workaround with "private" S3 files?
Adding product images to a product via the BigCommerce API while using S3 Signed URLs is indeed most definitely possible.
As stated in the comments above, you may just have an issue with the URL syntax for the signed URL. You need to urlencode the S3 URL before passing it to BigCommerce. Specifically, if you are generating the signature individually, be sure to urlencode it.
An example of a signed S3 URL looks like so...
'https://bucket-name.s3.amazonaws.com/folder/path/img.png?AWSAccessKeyId=key_id_here&Expires=1499804871&Signature=url_encoded_sig_here'
Here is an example of how to achieve your desired outcome programmatically while using the BigCommerce & AWS APIs with Node.js V6:
// Load AWS & BC Libraries:
const AWS = require('aws-sdk'); // npm install aws-sdk
const BC = require('./connection'); // wget https://raw.githubusercontent.com/mullinsr/bigcommerce-node.js/master/connection.js
// Configure the AWS SDK & Initialize the S3 Class:
AWS.config = new AWS.Config({
accessKeyId: 'access key ID here',
secretAccessKey: 'secret access key here',
region: 'us-east-1' // Enter region (N. Virginia = us-east-1 | Ohio = us-east-2 | N. California = us-west-1 | Oregon = us-west-2)
});
const s3 = new AWS.S3(); // Initialize S3 Class!
// Configure & Initialize the BC API Connection:
const settings = {
path: 'https://store-url.com',
user: 'username',
pass: 'apikey'
};
const api = new BC(settings); // Initialize BigCommerce API.
// Generate a signed URL:
const params = {
Bucket: 'your bucket name here, located in region set in AWS config',
Key: 'folder/path/image.png',
Expires: 10 // 10 Seconds until the URL should expire.
};
const url = s3.getSignedUrl('getObject', params); // Generate the URL!
// Define the BC Image Options (#see: https://developer.bigcommerce.com/api/v2/#create-a-product-image)
const img = {
image_file: url,
is_thumbnail: true
};
// Enter the Product ID that you wish to assign a product image to:
let pid = 5;
// Perform the API Request! :: Assign the image to the product!
api.post('/products/' +pid '/images', img).then(res => {
console.log('Successfully added image to product! Image ID = ', res.id);
}).catch(err => {
console.log('Caught Error: ', err);
});
Additional GET parameter "ResponseContentDisposition" was at fault. Removed it for this specific case and everything worked fine.

Writing a single file to multiple s3 buckets with gulp-awspublish

I have a simple single-page app, that is deployed to an S3 bucket using gulp-awspublish. We use inquirer.js (via gulp-prompt) to ask the developer which bucket to deploy to.
Sometimes the app may be deployed to several S3 buckets. Currently, we only allow one bucket to be selected, so the developer has to gulp deploy for each bucket in turn. This is dull and prone to error.
I'd like to be able to select multiple buckets and deploy the same content to each. It's simple to select multiple buckets with inquirer.js/gulp-prompt, but not simple to generate arbitrary multiple S3 destinations from a single stream.
Our deploy task is based upon generator-webapp's S3 recipe. The recipe suggests gulp-rename to rewrite the path to write to a specific bucket. Currently our task looks like this:
gulp.task('deploy', ['build'], () => {
// get AWS creds
if (typeof(config.awsCreds) !== 'object') {
return console.error('No config.awsCreds settings found. See README');
}
var dirname;
const publisher = $.awspublish.create({
key: config.awsCreds.key,
secret: config.awsCreds.secret,
bucket: config.awsCreds.bucket
});
return gulp.src('dist/**/*.*')
.pipe($.prompt.prompt({
type: 'list',
name: 'dirname',
message: 'Using the ‘' + config.awsCreds.bucket + '’ bucket. Which hostname would you like to deploy to?',
choices: config.awsCreds.dirnames,
default: config.awsCreds.dirnames.indexOf(config.awsCreds.dirname)
}, function (res) {
dirname = res.dirname;
}))
.pipe($.rename(function(path) {
path.dirname = dirname + '/dist/' + path.dirname;
}))
.pipe(publisher.publish())
.pipe(publisher.cache())
.pipe($.awspublish.reporter());
});
It's hopefully obvious, but config.awsCreds might look something like:
awsCreds: {
dirname: 'default-bucket',
dirnames: ['default-bucket', 'other-bucket', 'another-bucket']
}
Gulp-rename rewrites the destination path to use the correct bucket.
We can select multiple buckets by using "checkbox" instead of "list" for the gulp-prompt options, but I'm not sure how to then deliver it to multiple buckets.
In a nutshell, if $.prompt returns an array of strings instead of a string, how can I write the source to multiple destinations (buckets) instead of a single bucket?
Please keep in mind that gulp.dest() is not used -- only gulp.awspublish() -- and we don't know how many buckets might be selected.
Never used S3, but if I understand your question correctly a file js/foo.js should be renamed to default-bucket/dist/js/foo.js and other-bucket/dist/js/foo.js when the checkboxes default-bucket and other-bucket are selected?
Then this should do the trick:
// additionally required modules
var path = require('path');
var through = require('through2').obj;
gulp.task('deploy', ['build'], () => {
if (typeof(config.awsCreds) !== 'object') {
return console.error('No config.awsCreds settings found. See README');
}
var dirnames = []; // array for selected buckets
const publisher = $.awspublish.create({
key: config.awsCreds.key,
secret: config.awsCreds.secret,
bucket: config.awsCreds.bucket
});
return gulp.src('dist/**/*.*')
.pipe($.prompt.prompt({
type: 'checkbox', // use checkbox instead of list
name: 'dirnames', // use different result name
message: 'Using the ‘' + config.awsCreds.bucket +
'’ bucket. Which hostname would you like to deploy to?',
choices: config.awsCreds.dirnames,
default: config.awsCreds.dirnames.indexOf(config.awsCreds.dirname)
}, function (res) {
dirnames = res.dirnames; // store array of selected buckets
}))
// use through2 instead of gulp-rename
.pipe(through(function(file, enc, done) {
dirnames.forEach((dirname) => {
var f = file.clone();
f.path = path.join(f.base, dirname, 'dist',
path.relative(f.base, f.path));
this.push(f);
});
done();
}))
.pipe(publisher.cache())
.pipe($.awspublish.reporter());
});
Notice the comments where I made changes from the code you posted.
What this does is use through2 to clone each file passing through the stream. Each file is cloned as many times as there were bucket checkboxes selected and each clone is renamed to end up in a different bucket.