Add proofs to rpc response #96
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WalkthroughA new mechanism for generating and returning Merkle proofs for transactions was implemented in the Changes
Sequence Diagram(s)sequenceDiagram
participant Client
participant RPC_Core
participant RollkitStore
Client->>RPC_Core: Tx / TxSearch (prove=true)
RPC_Core->>RollkitStore: GetBlockData(height)
RollkitStore-->>RPC_Core: BlockData (transactions)
RPC_Core->>RPC_Core: Build Merkle proof for tx at index
RPC_Core-->>Client: Tx result with Merkle proof
Assessment against linked issues
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Actionable comments posted: 4
🧹 Nitpick comments (2)
pkg/rpc/core/tx.go (1)
108-113: RepeatedGetBlockDatacalls hurt performance – cache per block height
TxSearchmay contain many transactions belonging to the same block (e.g. the
two height-10 txs in your new test).
At the moment we fetch and rebuild the whole block data once per tx, which is
O(N·B) instead of O(N+B).A lightweight map keyed by
height(or even the already-filled
proofCache[height]) would cut redundant store reads and Merkle calculations.pkg/rpc/core/tx_test.go (1)
53-72: Consider asserting proof RootHash / Data for stronger guaranteesThe current test only checks
Total,Index, and thatLeafHashis non-empty.
VerifyingRootHashand thatProof.Dataequals the originalsampleTx
would provide end-to-end confidence that the proof is built from the correct
transaction bytes.
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📒 Files selected for processing (2)
pkg/rpc/core/tx.go(4 hunks)pkg/rpc/core/tx_test.go(6 hunks)
🧰 Additional context used
🧬 Code Graph Analysis (2)
pkg/rpc/core/tx_test.go (4)
pkg/rpc/core/mocks_test.go (1)
MockRollkitStore(113-115)pkg/rpc/core/env.go (1)
Environment(27-33)pkg/adapter/adapter.go (1)
Adapter(53-69)pkg/rpc/core/tx.go (2)
Tx(22-49)TxSearch(54-125)
pkg/rpc/core/tx.go (1)
pkg/adapter/adapter.go (1)
Adapter(53-69)
⏰ Context from checks skipped due to timeout of 90000ms (3)
- GitHub Check: lint / golangci-lint
- GitHub Check: test / Run Unit Tests
- GitHub Check: Test with Rollkit Chain
| func proofTXExists(txs []rlktypes.Tx, i uint32) cmttypes.TxProof { | ||
| hl := hashList(txs) | ||
| root, proofs := merkle.ProofsFromByteSlices(hl) | ||
|
|
||
| return cmttypes.TxProof{ | ||
| RootHash: root, | ||
| Data: cmttypes.Tx(txs[i]), | ||
| Proof: *proofs[i], | ||
| } | ||
| } |
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🛠️ Refactor suggestion
Return early when txs is empty to prevent invalid proofs
merkle.ProofsFromByteSlices panics on an empty slice. A quick guard keeps the
node stable when encountering an unexpected empty block.
func proofTXExists(txs []rlktypes.Tx, i uint32) cmttypes.TxProof {
+ if len(txs) == 0 {
+ return cmttypes.TxProof{}
+ }
hl := hashList(txs)📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| func proofTXExists(txs []rlktypes.Tx, i uint32) cmttypes.TxProof { | |
| hl := hashList(txs) | |
| root, proofs := merkle.ProofsFromByteSlices(hl) | |
| return cmttypes.TxProof{ | |
| RootHash: root, | |
| Data: cmttypes.Tx(txs[i]), | |
| Proof: *proofs[i], | |
| } | |
| } | |
| func proofTXExists(txs []rlktypes.Tx, i uint32) cmttypes.TxProof { | |
| if len(txs) == 0 { | |
| return cmttypes.TxProof{} | |
| } | |
| hl := hashList(txs) | |
| root, proofs := merkle.ProofsFromByteSlices(hl) | |
| return cmttypes.TxProof{ | |
| RootHash: root, | |
| Data: cmttypes.Tx(txs[i]), | |
| Proof: *proofs[i], | |
| } | |
| } |
* main: Add proofs to rpc response (#96)
Resolves #89
Add proofs to TX get + search response
Overview
Summary by CodeRabbit
New Features
proveflag in transaction queries.Tests