This is a complete Data Store with Create, Read, Delete and Print operations. It is implemented using Python.

• Clone this repository and use the RData.py module to use the CRD data store

  python RData.py

• Alternatively for checking this code, I have made an interactive program called app.py

  python app.py

• Unit tests are available in the tests.py module

  python -m unittest tests

Uses the python dictionary to store the key value pairs. However this process is complicated by the presence of Time-To-Live(TTL). Thus the data store skeleton looks like below.

{
  key: [value, time_to_live],
}

• The data store throws an error when a duplicate key is created.
• The data store throws an error when the memory limit is exceeded.
• The data store throws an error when a non-JSON value is paired with a key.

• The data store throws an error when a non-existent key is tried to be read/deleted.
• The data store throws an error when the Time-To-Live has expired and the key is tried to be read/deleted.

• The data dictionary is printed in a JSON format in data_store.json when the print operation is called.