Usage

S3 Usage

DASI can be configured to use any object stores that support S3 API.

A complete example can be found in example Simple S3.

Configuration

schema: ./schema
catalogue: toc
spaces:
  - roots:
      - path: ./database
store: s3
s3:
  endpoint: "127.0.0.1:9000"
  credential: ./s3credentials.yml
  bucketPrefix: "dasi-"

Python Usage

The Python interface to DASI is called pydasi.

Note

Please refer to DASI Python on how to install pydasi.

Simple Archive

We use the dasi.dasi.Dasi.archive() function to save example data SIMPLE_DATA using the metadata key as:

from dasi import Dasi
dasi = Dasi("config.yaml")
key=["User":"muster", "Project":"simple", "Date":"16-03-23", "Type":"text"]
data="SIMPLE_DATA"
dasi.archive(key, data)

where, the example schema is:

[ User, Project
   [ Date
      [ Type ]]]

See Configuration for config yaml..

Reference

class dasi.dasi.Key(key=None)

Container for keyword:value.

dasi.dasi.Dasi.archive(self, key, data)

Write data to be stored according to Dasi configuration.

Parameters:

• key – The metadata description of the data to store and index

• data – A pointer to a (read-only) copy of the data