s3_usecases_npcmr - a set of use cases of boto3 wrapped into a module.

Content

• Installation
• Usage
• Dependences
• TODO

Installation

pip install s3_npcmr

Usage

Create your own class inheriting from ObjectStorage, set params.

from s3_npcmr import ObjectStorage as BaseObjectStorage

class ObjectStorage(BaseObjectStorage):
  S3_SERVICE_NAME = 'YOUR_PARAM'
  S3_ENDPOINT_URL = 'YOUR_PARAM'
  S3_BUCKET = 'YOUR_PARAM'
  REDIS_CONTAINER_NAME = 'YOUR_PARAM'

Upload a file

s3 = ObjectStorage()
s3.upload_file(file_as_bytes, unique_s3_key_for_this_file)

Get metadata

s3 = ObjectStorage()
data = s3.get_metadata(obj.s3_key).get('Metadata', {})
metadata =  {k.lower(): v for k, v in data.items()}

Get hashed links to files

s3 = ObjectStorage()
file_urls['watch'] = s3.get_presigned_url(obj.s3_key)
file_urls['download'] = s3.get_presigned_url(obj.s3_key, 'attachment')

Dependences

• boto3
• Redis (241.2 kB)

TODO

• make redis optional