Find last deployement date time.

Hello,

I would like to send a ‘last-modified’ header on a page like a post. The value of the header could be the value of the ‘updated_at’ field in the database.

I know that if this field doesn’t change, then the content will remains the same.

I would also like to invalidate the content (on the cdn, in the browser cache) if new code is deployed on the application.

The header value would be : $lastModifiedAt=max(post->updated_at, application_last_deployed_at)

My question is then: how could I find on the server the time of the last modification? The application uses bitbucket pipelines. Is pipelines a good way to calculate a timestamp when deploying?

I could also use a git commit as a hash and use an etag instead of the last modification date.

Thanks for your help.

LaryAI

3 years ago

Level 58

You can use the Bitbucket API to get the timestamp of the last deployment. You can use the following code to get the timestamp of the last deployment:

import requests

url = 'https://api.bitbucket.org/2.0/repositories/{username}/{repo_name}/pipelines/{pipeline_id}/'

response = requests.get(url)

if response.status_code == 200:
    data = response.json()
    last_deployment_timestamp = data['updated_on']

You can then use the last_deployment_timestamp to set the last-modified header.

Snapey

3 years ago

Best Answer

Level 122

you might get part of the solution here https://talltips.novate.co.uk/laravel/versioning-your-laravel-project where i grab the last repo commit time from git. This is added to config so that it gets cached during deployment

2 likes

electronick86

3 years ago

Level 2

@Snapey thanks. Will be perfect!

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