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Merged
niran merged 1 commit into from
Mar 16, 2026
Merged

Support block-by-number lookup and navigation #153

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118 changes: 88 additions & 30 deletions src/app/api/block/[hash]/route.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,61 @@ async function fetchBlockFromRpc(
}
}

function isBlockNumber(identifier: string): boolean {
return /^\d+$/.test(identifier);
}

async function fetchBlockFromRpcByNumber(
blockNumber: string,
): Promise<Block<bigint, true> | null> {
try {
const block = await client.getBlock({
blockNumber: BigInt(blockNumber),
includeTransactions: true,
});
return block;
} catch (error) {
console.error("Failed to fetch block from RPC by number:", error);
return null;
}
}

async function buildAndCacheBlockData(
rpcBlock: Block<bigint, true>,
hash: Hash,
number: bigint,
): Promise<BlockData> {
const transactions: BlockTransaction[] = await Promise.all(
rpcBlock.transactions.map(async (tx, index) => {
const { bundleId, executionTimeUs } =
await enrichTransactionWithBundleData(tx.hash);
return {
hash: tx.hash,
from: tx.from,
to: tx.to,
gasUsed: tx.gas,
executionTimeUs,
bundleId,
index,
};
}),
);

const blockData: BlockData = {
hash,
number,
timestamp: rpcBlock.timestamp,
transactions,
gasUsed: rpcBlock.gasUsed,
gasLimit: rpcBlock.gasLimit,
cachedAt: Date.now(),
};

await cacheBlockData(blockData);

return blockData;
}

// On OP Stack, the first transaction (index 0) is the L1 attributes deposit transaction.
// This is not a perfect check (ideally we'd check tx.type === 'deposit' or type 0x7e),
// but sufficient for filtering out system transactions that don't need simulation data.
Expand Down Expand Up @@ -133,9 +188,35 @@ export async function GET(
{ params }: { params: Promise<{ hash: string }> },
) {
try {
const { hash } = await params;
const { hash: identifier } = await params;

const cachedBlock = await getBlockFromCache(hash);
// If the identifier is a block number, resolve it to a hash first
if (isBlockNumber(identifier)) {
const rpcBlock = await fetchBlockFromRpcByNumber(identifier);
if (!rpcBlock || !rpcBlock.hash || !rpcBlock.number) {
return NextResponse.json({ error: "Block not found" }, { status: 404 });
}

// Check cache by resolved hash
const cachedBlock = await getBlockFromCache(rpcBlock.hash);
if (cachedBlock) {
const { updatedBlock, hasUpdates } =
await refetchMissingTransactionSimulations(cachedBlock);
if (hasUpdates) {
await cacheBlockData(updatedBlock);
}
return NextResponse.json(serializeBlockData(updatedBlock));
}

const blockData = await buildAndCacheBlockData(
rpcBlock,
rpcBlock.hash,
rpcBlock.number,
);
return NextResponse.json(serializeBlockData(blockData));
}

const cachedBlock = await getBlockFromCache(identifier);
if (cachedBlock) {
const { updatedBlock, hasUpdates } =
await refetchMissingTransactionSimulations(cachedBlock);
Expand All @@ -147,39 +228,16 @@ export async function GET(
return NextResponse.json(serializeBlockData(updatedBlock));
}

const rpcBlock = await fetchBlockFromRpc(hash);
const rpcBlock = await fetchBlockFromRpc(identifier);
if (!rpcBlock || !rpcBlock.hash || !rpcBlock.number) {
return NextResponse.json({ error: "Block not found" }, { status: 404 });
}

const transactions: BlockTransaction[] = await Promise.all(
rpcBlock.transactions.map(async (tx, index) => {
const { bundleId, executionTimeUs } =
await enrichTransactionWithBundleData(tx.hash);
return {
hash: tx.hash,
from: tx.from,
to: tx.to,
gasUsed: tx.gas,
executionTimeUs,
bundleId,
index,
};
}),
const blockData = await buildAndCacheBlockData(
rpcBlock,
rpcBlock.hash,
rpcBlock.number,
);

const blockData: BlockData = {
hash: rpcBlock.hash,
number: rpcBlock.number,
timestamp: rpcBlock.timestamp,
transactions,
gasUsed: rpcBlock.gasUsed,
gasLimit: rpcBlock.gasLimit,
cachedAt: Date.now(),
};

await cacheBlockData(blockData);

return NextResponse.json(serializeBlockData(blockData));
} catch (error) {
console.error("Error fetching block data:", error);
Expand Down
77 changes: 74 additions & 3 deletions src/app/block/[hash]/page.tsx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -244,6 +244,10 @@ export default function BlockPage({ params }: PageProps) {
useEffect(() => {
if (!hash) return;

setData(null);
setLoading(true);
setError(null);

const fetchData = async () => {
try {
const response = await fetch(`/api/block/${hash}`);
Expand Down Expand Up @@ -321,15 +325,82 @@ export default function BlockPage({ params }: PageProps) {
>
TIPS
</Link>
{data && (
<>
<div className="h-6 w-px bg-gray-200" />
<div className="flex items-center gap-1">
{Number(data.number) > 0 ? (
<Link
href={`/block/${Number(data.number) - 1}`}
className="inline-flex items-center justify-center w-8 h-8 rounded-lg hover:bg-gray-100 transition-colors text-gray-500 hover:text-gray-900"
title="Previous block"
>
<svg
className="w-4 h-4"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<title>Previous block</title>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M15 19l-7-7 7-7"
/>
</svg>
</Link>
) : (
<span className="inline-flex items-center justify-center w-8 h-8 rounded-lg text-gray-300 cursor-not-allowed">
<svg
className="w-4 h-4"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<title>Previous block</title>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M15 19l-7-7 7-7"
/>
</svg>
</span>
)}
<Link
href={`/block/${Number(data.number) + 1}`}
className="inline-flex items-center justify-center w-8 h-8 rounded-lg hover:bg-gray-100 transition-colors text-gray-500 hover:text-gray-900"
title="Next block"
>
<svg
className="w-4 h-4"
fill="none"
stroke="currentColor"
viewBox="0 0 24 24"
>
<title>Next block</title>
<path
strokeLinecap="round"
strokeLinejoin="round"
strokeWidth={2}
d="M9 5l7 7-7 7"
/>
</svg>
</Link>
</div>
</>
)}
</div>
<div className="flex items-center gap-2 text-sm">
<code className="font-mono text-gray-600 bg-gray-100 px-2 py-1 rounded text-xs">
{hash.slice(0, 10)}...{hash.slice(-8)}
{(data?.hash ?? hash).slice(0, 10)}...
{(data?.hash ?? hash).slice(-8)}
</code>
<CopyButton text={hash} />
<CopyButton text={data?.hash ?? hash} />
{BLOCK_EXPLORER_URL && (
<a
href={`${BLOCK_EXPLORER_URL}/block/${hash}`}
href={`${BLOCK_EXPLORER_URL}/block/${data?.hash ?? hash}`}
target="_blank"
rel="noopener noreferrer"
className="p-1.5 rounded-md hover:bg-gray-100 transition-colors text-gray-400 hover:text-gray-600"
Expand Down
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