CODEWITHSUNDEEP
pythonamazon-web-servicesaws-lambda
Bigmoose70
Bigmoose70

Reputation: 473

AWS Lambda: Unique Key generator for s3 files

I have a AWS lambda function running some code and then saving a json to a s3 bucket.

Currently, my formatting is using the datetime package to grab the current date.

now = str(datetime.today())

I am then formatting the csv to 'payrollcompensation_streams/{}_{}.json'.format('pega_payrollcompensation_raw',now))

What I want to do is everytime this AWS Lambda function runs generate an unique key of an integer instead of a datetime.

Instead of this: pega_payrollcompensation_raw_2020-03-05 00:00:00.0000 This: pega_payrollcompensation_raw_1

Then the next time

pega_payrollcompensation_raw_2

Upvotes: 0

Views: 377

Answers (2)

Ivan Shumov
Ivan Shumov

Reputation: 634

In case of using Lambda for this task you need to save state somewhere. Best fit for your case is DynamoDB. You need to set some sort of counter there and receive value from counter first. Be careful with concurrency.

Upvotes: 1

Ali Cirik
Ali Cirik

Reputation: 1572

How about using the timestamp() method for your unique key?

For example:

>>> datetime.today().timestamp()
1583449231.642402

Upvotes: 1

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