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RPC: Add getFeeCalculatorForBlockhash method call (#8687)

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Returns the `FeeCalculator` associated with the given blockhash, or
`null` if said blockhash has expired
This commit is contained in:
Trent Nelson
2020-03-06 17:01:31 -07:00
committed by GitHub
parent 3eb00ef60f
commit 4db074a5aa
9 changed files with 184 additions and 6 deletions
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25
docs/src/apps/jsonrpc-api.md
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@ -24,6 +24,7 @@ To interact with a Solana node inside a JavaScript application, use the [solana-
* [getConfirmedBlocks](jsonrpc-api.md#getconfirmedblocks)
* [getEpochInfo](jsonrpc-api.md#getepochinfo)
* [getEpochSchedule](jsonrpc-api.md#getepochschedule)
* [getFeeCalculatorForBlockhash](jsonrpc-api.md#getfeecalculatorforblockhash)
* [getFeeRateGovernor](jsonrpc-api.md#getfeerategovernor)
* [getGenesisHash](jsonrpc-api.md#getgenesishash)
* [getIdentity](jsonrpc-api.md#getidentity)
@ -405,6 +406,30 @@ curl -X POST -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":1, "m
{"jsonrpc":"2.0","result":{"firstNormalEpoch":8,"firstNormalSlot":8160,"leaderScheduleSlotOffset":8192,"slotsPerEpoch":8192,"warmup":true},"id":1}
```
### getFeeCalculatorForBlockhash
Returns the fee calculator associated with the query blockhash, or `null` if the blockhash has expired
#### Parameters:
* `blockhash: <string>`, query blockhash as a Base58 encoded string
#### Results:
The `result` field will be `null` if the query blockhash has expired, otherwise an `object` with the following fields:
* `feeCalculator: <object>`, `FeeCalculator` object describing the cluster fee rate at the queried blockhash
#### Example:
```bash
// Request
curl -X POST -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","id":1, "method":"getFeeCalculatorForBlockhash", "params":["GJxqhuxcgfn5Tcj6y3f8X4FeCDd2RQ6SnEMo1AAxrPRZ"]}' http://localhost:8899
// Result
{"jsonrpc":"2.0","result":{"context":{"slot":221},"value":{"feeCalculator":{"lamportsPerSignature":5000}}},"id":1}
```
### getFeeRateGovernor
Returns the fee rate governor information from the root bank