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.