BigchainDB 2.0 - The Blockchain Database
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The document outlines the updates and changes introduced in BigchainDB 2.0 compared to version 1.3, highlighting modifications in transaction handling, HTTP API endpoints, and block structure. Additionally, it mentions alterations in the command-line interface and a transition from AGPL v3 to Apache v2 licensing, promoting a more open contribution process. New features include support for different transaction modes and a new endpoint for validators.
![HTTP API
Changes
#3
Old Block Structure
{
"id": "<ID of the block>",
"block": {
"timestamp": "<timestamp>",
"transactions": ["<List of transactions>"],
"node_pubkey": "<Public key of node which created the block>",
"voters": ["<List of public keys of all nodes in cluster>"]
},
"signature": "<Signature of inner block object>"
}
New Block Structure
{
"height": height,
"transactions": ["<List of transactions>"]
}](https://image.slidesharecdn.com/troymcmeetupslidesfor2018may2-180504084630/85/BigchainDB-2-0-The-Blockchain-Database-12-320.jpg)
BigchainDB 2.0 - The Blockchain Database
- 4. A Finite State Machine (FSM) with 5 States
- 5. Problem: Keep all Non-Faulty FSMs in Sync
- 9. Changes in BigchainDB Transactions #3 Sign the whole tx when fulfilling each input. ⬇ The message-to-sign differs for each input.
- 10. HTTP API Changes #1 POST /api/v1/transactions ⬇ POST /api/v1/transactions?mode=async POST /api/v1/transactions?mode=sync or POST /api/v1/transactions?mode=commit
- 11. HTTP API Changes #2 GET /api/v1/blocks/{block_id} ⬇ GET /api/v1/blocks/{block_height}
- 12. HTTP API Changes #3 Old Block Structure { "id": "<ID of the block>", "block": { "timestamp": "<timestamp>", "transactions": ["<List of transactions>"], "node_pubkey": "<Public key of node which created the block>", "voters": ["<List of public keys of all nodes in cluster>"] }, "signature": "<Signature of inner block object>" } New Block Structure { "height": height, "transactions": ["<List of transactions>"] }
- 13. HTTP API Changes #4 Goodbye: GET /api/v1/statuses?transaction_id={transaction_id} GET /api/v1/statuses?block_id={block_id} GET /api/v1/votes?block_id={block_id}
- 14. HTTP API Changes #5 New endpoint: GET /api/v1/validators
- 16. ☹
- 17. Command-Line Interface (CLI) Changes #1 $ bigchaindb -y configure localmongodb $ bigchaindb -y configure rethinkdb $ bigchaindb -y configure mongodb
- 18. CLI Changes #2 Also gone: $ bigchaindb export-my-pubkey $ bigchaindb set-shards $ bigchaindb set-replicas $ bigchaindb add-replicas $ bigchaindb remove-replicas
- 19. CLI Changes #3 New: $ bigchaindb upsert-validator PUBLIC_KEY POWER
- 20. Other Recent Changes AGPL v3 → Apache v2 license on all code. New, more open process for contributing: ● Collective Code Construction Contract (C4) ● BigchainDB Enhancement Proposals (BEPs)