This page should provide the procedures and tables for each contract in the selected Architectures Exploration and Processes & Permissions . It also describes the necessary kwil features for this design to be implemented.

Graveyard

Glossary

• Contract Owner: the wallet that deployed the contract.
• Stream Owner: the stream owner as defined dynamically in the contract's metadata. Official streams are owned by TSN.

Implementation

System Contract

Tables

• system_streams
  • data_provider (composite primary key)
  • stream_id (composite primary key)
  • accepted_at
  • revoked_at

Procedures

• get_record(data_provider, stream_id, date_from, date_to?, frozen_at?) - checks from system_streams first.
• get_index(data_provider, stream_id, date_from, date_to?, frozen_at?) - checks from system_streams first.
• get_unsafe_record(data_provider, stream_id, date_from, date_to?, frozen_at?) - bypasses the system_streams table.
• get_unsafe_index(data_provider, stream_id, date_from, date_to?, frozen_at?) - bypasses the system_streams table.
• is_official_stream(data_provider, stream_id)
• accept_stream(data_provider, stream_id) [contract owner-only]
• revoke_stream(data_provider, stream_id) [contract owner-only]

Notes:

• The frozen_at argument is optional. If provided, the procedure should return the stream's state at the given time. If not provided, it should return the current state of the stream. If start is provided, the first value for each should be returned as if it was never overridden.