From c295d699e759fabb81120856267ec0c246d3a86e Mon Sep 17 00:00:00 2001
From: Alan Sapede <alan@purestake.com>
Date: Thu, 23 Jun 2022 13:22:05 -0400
Subject: [PATCH] Adds Eth feeHistory & maxPriorityFeePerGas rpc (#4956)

* Adds Eth feeHistory & maxPriorityFeePerGas

* linted

* Fixes rpc method ordering
---
 .../types/src/interfaces/eth/definitions.ts   |  6 +++++
 packages/types/src/interfaces/eth/rpc.ts      | 23 +++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/packages/types/src/interfaces/eth/definitions.ts b/packages/types/src/interfaces/eth/definitions.ts
index e83f7f5b65..fcd7a30c89 100644
--- a/packages/types/src/interfaces/eth/definitions.ts
+++ b/packages/types/src/interfaces/eth/definitions.ts
@@ -164,6 +164,12 @@ const types: DefinitionsTypes = objectSpread({}, V0, V1, V2, {
     data: 'Option<Bytes>',
     nonce: 'Option<U256>'
   },
+  EthFeeHistory: {
+    oldestBlock: 'U256',
+    baseFeePerGas: 'Vec<U256>',
+    gasUsedRatio: 'Vec<f64>',
+    reward: 'Option<Vec<Vec<U256>>>'
+  },
   EthFilter: {
     fromBlock: 'Option<BlockNumber>',
     toBlock: 'Option<BlockNumber>',
diff --git a/packages/types/src/interfaces/eth/rpc.ts b/packages/types/src/interfaces/eth/rpc.ts
index f3df792753..e3a4c78146 100644
--- a/packages/types/src/interfaces/eth/rpc.ts
+++ b/packages/types/src/interfaces/eth/rpc.ts
@@ -96,6 +96,24 @@ export const rpc: DefinitionsRpc = objectSpread({}, netRpc, web3Rpc, {
     ],
     type: 'U256'
   },
+  feeHistory: {
+    description: 'Returns fee history for given block count & reward percentiles',
+    params: [
+      {
+        name: 'blockCount',
+        type: 'U256'
+      },
+      {
+        name: 'newestBlock',
+        type: 'BlockNumber'
+      },
+      {
+        name: 'rewardPercentiles',
+        type: 'Option<Vec<f64>>'
+      }
+    ],
+    type: 'EthFeeHistory'
+  },
   gasPrice: {
     description: 'Returns current gas price.',
     params: [],
@@ -368,6 +386,11 @@ export const rpc: DefinitionsRpc = objectSpread({}, netRpc, web3Rpc, {
     params: [],
     type: 'U256'
   },
+  maxPriorityFeePerGas: {
+    description: 'Returns max priority fee per gas',
+    params: [],
+    type: 'U256'
+  },
   mining: {
     description: 'Returns true if client is actively mining new blocks.',
     params: [],