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eth_feeHistory (EIP 1559) #4191

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Jul 24, 2021
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eth_feeHistory (EIP 1559) #4191

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f2703cb
WIP
spacesailor24 Jul 23, 2021
afea9b2
Add missing fields for test runner
spacesailor24 Jul 23, 2021
1672830
Correct function arguments for getFeeHistory
spacesailor24 Jul 23, 2021
ce0cd54
getFeeHistory tests with correct arguments
spacesailor24 Jul 23, 2021
989da0c
Init utils.toNumber function
spacesailor24 Jul 23, 2021
6f85eb7
Rename toNumber test to hexToNumber
spacesailor24 Jul 23, 2021
45d1c13
Add inputFormatters to getFeeHistory
spacesailor24 Jul 23, 2021
86afed7
Rename newestBlock to lastBlock. Update types for blockCount and last…
spacesailor24 Jul 23, 2021
7472eb0
Add additional tests with different input types
spacesailor24 Jul 23, 2021
44a62a8
Add missing function export
spacesailor24 Jul 23, 2021
509fccd
eth-feehistory docs (#4190)
Jul 23, 2021
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5 changes: 5 additions & 0 deletions packages/web3-eth/src/index.js
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Expand Up @@ -385,6 +385,11 @@ var Eth = function Eth() {
params: 0,
outputFormatter: formatter.outputBigNumberFormatter
}),
new Method({
name: 'getFeeHistory',
call: 'eth_feeHistory',
params: 3,
}),
new Method({
name: 'getAccounts',
call: 'eth_accounts',
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14 changes: 14 additions & 0 deletions packages/web3-eth/types/index.d.ts
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Expand Up @@ -149,6 +149,13 @@ export class Eth {
callback?: (error: Error, gasPrice: string) => void
): Promise<string>;

getFeeHistory(
blockCount: number,
newestBlock: string,
rewardPercentiles: number[],
callback?: (error: Error, feeHistory: FeeHistoryResult) => void
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This should contain blockCount, newestBlock and rewardPercentiles?

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I think you mixed up getGasPrice and getFeeHistory?

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Also rewardPercentiles should be marked as optional

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Actually I think the docs here are misleading https://github.com/ChainSafe/web3.js/pull/4190/files#diff-b1b5b8a010cd61ad800e528887f49730db04064d59d3ee5ed14de0f49f2ba11cR740

Looks like you still have to pass an empty array so I'm not sure if web3 should just do that as the default if that param isn't set? Would be more user friendly than having to pass an empty array.

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@GregTheGreek Whoops, forgot to push, thank you

@corymsmith I think web3 defaulting an empty array would be nice for the user, but we can't have two optional arguments in typescript, so I'm not sure how we could do this

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True, I suppose the only way to do it would be to add a formatter that formats null into []

): Promise<FeeHistoryResult>;

getAccounts(
callback?: (error: Error, accounts: string[]) => void
): Promise<string[]>;
Expand Down Expand Up @@ -439,3 +446,10 @@ export interface StorageProof {
value: string;
proof: string[];
}

export interface FeeHistoryResult {
oldestBlock: string;
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This specifies oldestBlock is returned as a string but the tests are showing its returned as a number here:
https://github.com/ChainSafe/web3.js/pull/4191/files#diff-99b1655ae7b89f474d7f663a07e45ccaa75c9270bb15bf852f1f0bdf2164f711R23

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You're right, I just blindly followed the RPC docs, thank you

baseFeePerGas: string[];
gasUsedRatio: number[];
reward: string[][];
}
12 changes: 11 additions & 1 deletion packages/web3-eth/types/tests/eth.tests.ts
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Expand Up @@ -32,7 +32,8 @@ import {
TransactionConfig,
hardfork,
Common,
chain
chain,
FeeHistoryResult
} from 'web3-eth';
import BN = require('bn.js');
import BigNumber from 'bignumber.js';
Expand Down Expand Up @@ -178,6 +179,15 @@ eth.getGasPrice();
// $ExpectType Promise<string>
eth.getGasPrice((error: Error, gasPrice: string) => {});

// $ExpectType Promise<FeeHistoryResult>
eth.getFeeHistory(
4, "0xA30953", []
);
// $ExpectType Promise<FeeHistoryResult>
eth.getFeeHistory(
4, "0xA30953", [],
(error: Error, feeHistory: FeeHistoryResult) => {});

// $ExpectType Promise<string[]>
eth.getAccounts();
// $ExpectType Promise<string[]>
Expand Down
46 changes: 46 additions & 0 deletions test/eth.feeHistory.js
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@@ -0,0 +1,46 @@
var testMethod = require('./helpers/test.method.js');

var method = 'getFeeHistory';
var methodCall = 'eth_feeHistory';

var tests = [{
args: [4, "0xA30953", []],
formattedArgs: [4, "0xA30953", []],
result: {
"baseFeePerGas": [
"0xa",
"0x9",
"0x8",
"0x9",
"0x9"
],
"gasUsedRatio": [
0.003920375,
0.002625,
0.904999125,
0.348347625
],
"oldestBlock": 10684752
},
formattedResult: {
"baseFeePerGas": [
"0xa",
"0x9",
"0x8",
"0x9",
"0x9"
],
"gasUsedRatio": [
0.003920375,
0.002625,
0.904999125,
0.348347625
],
"oldestBlock": 10684752
},
call: methodCall
}];


testMethod.runTests('eth', method, tests);

1 change: 1 addition & 0 deletions test/eth_methods.js
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Expand Up @@ -27,6 +27,7 @@ describe('eth', function() {
u.methodExists(eth, 'isMining');
u.methodExists(eth, 'getCoinbase');
u.methodExists(eth, 'getGasPrice');
u.methodExists(eth, 'getFeeHistory');
u.methodExists(eth, 'getHashrate');
u.methodExists(eth, 'getAccounts');
u.methodExists(eth, 'getBlockNumber');
Expand Down