Legacy V1 filter

Transforms the block data to the Oura V1 data structure. This filter is ideal for compatibility with systems that are using Oura V1 and want to migrate without much work.

Configuration

Adding the following section to the daemon config file will enable the filter as part of the pipeline:

[[filters]]
type = "LegacyV1"
include_block_end_events = false
include_transaction_details = false
include_transaction_end_events = false
include_block_details = false
include_block_cbor = false
include_byron_ebb = false

Section LegacyV1

• type: the literal value LegacyV1.
• include_block_end_events: if enabled, the source will output an event signaling the end of a block, duplicating all of the data already sent in the corresponding block start event. Default value is false.
• include_transaction_details: if enabled, each transaction event payload will contain an nested version of all of the details of the transaction (inputs, outputs, mint, assets, metadata, etc). Useful when the pipeline needs to process the tx as a unit, instead of handling each sub-object as an independent event. Default value is false.
• include_transaction_end_events: if enabled, the source will output an event signaling the end of a transaction, duplicating all of the data already sent in the corresponding transaction start event. Defaul value is false.
• include_block_cbor: if enabled, the block event will include the raw, unaltered cbor content received from the node, formatted as an hex string. Useful when some custom cbor decoding is required. Default value is false.
• include_byron_ebb: if enabled, a block event will be emmitted for legacy epoch boundary block of the Byron era (deprecated in newer eras). Useful when performing validation on previous block hashes. Default value is false.
• include_block_details: If enabled, will be added the basic details of each transaction. Default value is false.

Examples

Below is an example of the data that will be sent to the sink with all settings disabled.

{
  "event": "apply",
  "point": {
    "slot": 100110525,
    "hash": "c808fc4142c5f10a2a6d0922edbd23972100d7d22e2255206bd05e968cc045f1"
  },
  "record": {
    "context": {
      "block_hash": "c808fc4142c5f10a2a6d0922edbd23972100d7d22e2255206bd05e968cc045f1",
      "block_number": 9142145,
      "slot": 100110525,
      "timestamp": 1691676816,
      "tx_idx": 6,
      "tx_hash": "4329140c6711f2197c8c81bfff4b75fb95892375050dafda30ba146476ca3d65",
      "input_idx": null,
      "output_idx": null,
      "output_address": null,
      "certificate_idx": null
    },
    ...
  }
}