Add a new notice

The DApp backend can call this method to add a new notice when processing the advance-state request. A notice describes any changes to the internal state of the DApp that may be relevant to the blockchain. Between calls to the finish method, the notice method can be called up to 32k times.

The returned value is the index of the notice for the current advance request. In other words, the index counting restarts at every request.

application/json

Request Body

• payload string

  The payload is in the Ethereum hex binary format. The first two characters are '0x' followed by pairs of hexadecimal numbers that correspond to one byte. For instance, '0xdeadbeef' corresponds to a payload with length 4 and bytes 222, 173, 190, 175. An empty payload is represented by the string '0x'.

Responses

• 200
• default

---

Created the notice.

application/json

• Schema
• Example (from schema)

---

Schema

• index uint64

  Position in the Merkle tree.

{
  "index": 0
}

Error response.

text/plain

• Schema

---

Schema

• string

  Detailed error message.