getHighestSnapshotSlot

getHighestSnapshotSlot is a Solana JSON-RPC method that reports the highest snapshot slots a node currently holds on disk. It returns an object with full — the slot of the newest full ledger snapshot — and incremental, the slot of the latest incremental snapshot built on top of it. Validators on the network that secures SOL use these snapshots to bootstrap without replaying the whole ledger from genesis. Send the request as a JSON-RPC 2.0 POST with an empty positional params array to https://solana.therpc.io/YOUR_API_KEY.

Use cases

• Pick an RPC node that exposes a recent full/incremental pair when bootstrapping a new Solana validator, so it starts from a fresh slot instead of replaying far back.
• Monitor snapshot freshness on an RPC node by tracking how the reported slots advance relative to the current cluster slot.

Parameters

此方法不需要任何参数，传入空数组 [] 即可。

Response

Example request

1curl https://solana.therpc.io/YOUR_API_KEY \
2  -X POST \
3  -H "Content-Type: application/json" \
4  -d '{
5  "jsonrpc": "2.0",
6  "id": 1,
7  "method": "getHighestSnapshotSlot",
8  "params": []
9}'

Errors & troubleshooting

Common pitfalls

• incremental can be null when the node has only taken a full snapshot and no incremental one yet, so handle the missing value rather than assuming it is always present.
• This method replaces the removed getSnapshotSlot — calling the old name against a current Solana node will fail, so use getHighestSnapshotSlot instead.

Supported networks

• Mainnet
• Devnet

See also

• getFirstAvailableBlock
• minimumLedgerSlot