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Parse CBOR filter

The ParseCbor filter decodes raw CBOR into structured records, so downstream stages get something far easier to work with than a hex blob. It’s a prerequisite for most real processing — notably the Select filter. The records follow the UTxORPC schema.

It adapts to whatever it receives:

  • a CborBlock is decoded into a structured Block.
  • a CborTx is decoded into a structured Tx. This requires the SplitBlock filter earlier in the chain to produce the CborTx records.
  • anything else is passed through untouched.

Configuration

daemon.toml
[[filters]]
type = "ParseCbor"

This filter takes no additional options.

Examples

From a CborBlock, the next stage receives a structured block:

{
  "event": "apply",
  "point": {
    "slot": 0,
    "hash": ""
  },
  "record": {
    "header": {},
    "body": {}
  }
}

From a CborTx (when SplitBlock ran first), it receives one structured transaction per event:

{
  "event": "apply",
  "point": {
    "slot": 0,
    "hash": ""
  },
  "record": {
    "inputs": [],
    "outputs": [],
    ...
  }
}