Module limiter 

Limits for RPC and store parameters and payload sizes.

Rationale

• Parameter limits are kept across all multi-value RPC parameters. This caps worst-case SQL IN clauses and keeps responses comfortably under the 4 MiB payload budget enforced in the store.
• Limits are enforced both at the RPC boundary and inside the store to prevent bypasses and to avoid expensive queries even if validation is skipped earlier in the stack.
• MAX_PAGINATED_PAYLOAD_BYTES is set to 4 MiB (e.g. 1000 nullifier rows at ~36 B each, 1000 transactions summaries streamed in chunks).

Add new limits here so callers share the same values and rationale.

Structs

QueryLimitError

QueryParamAccountIdLimit

Used for the following RPC endpoints

QueryParamBlockLimit

Only used internally, not exposed via public RPC.

QueryParamNoteCommitmentLimit

Used for internal queries retrieving note inclusion proofs by commitment.

QueryParamNoteIdLimit

Used for the following RPC endpoints select_notes_by_id

QueryParamNoteTagLimit

Used for the following RPC endpoints

QueryParamNullifierLimit

Used for the following RPC endpoints

QueryParamNullifierPrefixLimit

Used for the following RPC endpoints

QueryParamStorageMapKeyTotalLimit

Used for the following RPC endpoints

Constants

GENERAL_REQUEST_LIMIT

Basic request limit.

MAX_RESPONSE_PAYLOAD_BYTES

Maximum payload size (in bytes) for paginated responses returned by the store.

Traits

QueryParamLimiter

Checks limits against the desired query parameters, per query parameter and bails if they exceed a defined value.