Could I know the event upload file on aws s3 automatically? - node.js

Question

I'm using Node JS to subscribe SNS on AWS and SQS to handle queues . How do I know if a file has been uploaded to S3 then sent the message to node js automatically via SNS? Sorry my English is not good

Answer 1

You can do that send notification using SNS when any file uploaded to s3
https://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html
require 'aws-sdk-s3' # v2: require 'aws-sdk'
req = {}
req[:bucket] = bucket_name
events = ['s3:ObjectCreated:*']
notification_configuration = {}
# Add function
lc = {}
lc[:lambda_function_arn] = 'my-function-arn'
lc[:events] = events
lambda_configurations = []
lambda_configurations << lc
notification_configuration[:lambda_function_configurations] = lambda_configurations
# Add queue
qc = {}
qc[:queue_arn] = 'my-topic-arn'
qc[:events] = events
queue_configurations = []
queue_configurations << qc
notification_configuration[:queue_configurations] = queue_configurations
# Add topic
tc = {}
tc[:topic_arn] = 'my-topic-arn'
tc[:events] = events
topic_configurations = []
topic_configurations << tc
notification_configuration[:topic_configurations] = topic_configurations
req[:notification_configuration] = notification_configuration
req[:use_accelerate_endpoint] = false
s3 = Aws::S3::Client.new(region: 'us-west-2')
s3.put_bucket_notification_configuration(req)
you can refer this code also.