Questions tagged [frontier]
Questions about the most popular Substrate EVM framework.
69
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Frontier: What is trait LinearCostPrecompile about?
So it's often seen in Precompile implementations as a trait bound :
impl<T: LinearCostPrecompile> Precompile for T {
and the trait itself :
pub trait LinearCostPrecompile {
const BASE: u64;
...
- 2,802
0
votes
1
answer
21
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Frontier template using sr25519 - polkajsapi
I just cloned frontier and modified the code for using H256 address following this
These are my changes in runtime/src/lib.rs:
pub type Signature = MultiSignature;
impl pallet_evm::Config for Runtime ...
1
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0
answers
63
views
how withdraw astar frontier tip reward with alice in dev mode, i use evm.withdraw(0x15fdd31c61141abd04a99fd6822c8558854ccde3, 1) report "bad Origin"
[]
https://github.com/AstarNetwork/Astar.git
./target/release/astar-collator --dev -d ./data -l info
astar frontier evm use HashedAddressMapping in evm pallet
alice public key is ...
- 101
5
votes
1
answer
67
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PolkadotJS Apps shows wrong AccountId20 on Frontier Template Node
Frontier recently received support for Moonbeam's AccountId20:
https://github.com/paritytech/frontier/pull/1019
So now I'm trying to use this new feature on PolkadotJS Apps.
I'm running a Frontier ...
- 1,507
1
vote
1
answer
33
views
Generating ethereum address from SS58 address [duplicate]
I have created keypairs for aura and grandpa and added it into customSpec file but i need to add ethereum address in customSpec file to fund it with some amount of ethereum. So, i have generated ...
- 41
2
votes
1
answer
26
views
Derived H160 address is different than showing in metamask?
I know ss58 public key and private key, also I have derived the EVM HS160 account from the same public key, next is how I can import that EVM HS160 Account in metamask. If I put the private key of ...
- 41
1
vote
1
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16
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PreLog Blocks in frontier ethereum pallet on_initialize hook
fn on_initialize(_: T::BlockNumber) -> Weight {
let mut weight = T::SystemWeightInfo::kill_storage(1);
// If the digest contain an existing ethereum block(encoded as PreLog)...
0
votes
1
answer
44
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How do I use the AccountId20 and EthereumSignature Signer with polkadot.js.org? [duplicate]
I'm trying to get a better understanding of Frontier, and thus I'm reimplementing the frontier node template over the generic substrate node template. Unfortunately I'm pretty much stuck at step 1.
...
- 118
1
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11
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subscan-essentials EVM plugin
I've tested subscan-essentials and love how nicely a substrate-based chain gets indexed in a database. But I see that it doesn't parse Frontier evm extrinsics. I couldn't find open-source plugins for ...
- 368
1
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1
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56
views
How to implement the `Get` trait for a `Pallet<T>`?
I'm writing a pallet that implements evm::executor::stack::PrecompileSet.
The goal is to use this pallet in conjunction with Frontier's pallet-evm, which has the following types in its Config trait:
...
- 1,507
1
vote
2
answers
59
views
frontier node template fees
I created a new frontier node template with frontier.
During each interaction I pay a gas fee, my question is where this gas fee is deposited and can it be collected by the validator ?
- 11
1
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0
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41
views
Change chainID in frontier after chain is live
We have tested in local chain with a runtime upgrade to change the chainID of the EVM (with frontier). All seems ok, chain continue to run correctly with the new chainID. Except the fact that we will ...
- 284
1
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1
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59
views
Moonbeam #[precompile] procedural macro and Rust generics compilation error
I'm trying to write something similar to Moonbeam's assets-erc20 precompile.
I'm using Moonbeam's #[precompile] procedural macros.
pub type AssetIdOf<R> =
<<R as pallet_evm::Config&...
- 1,507
0
votes
0
answers
23
views
What is the account code in genesis account?
What does account code use for? No idea why are 0xff (INVALID) and 0x00 (STOP)...
https://github.com/paritytech/frontier/blob/08dfe8986e3f92ce213244c438eb9178653fce59/primitives/evm/src/lib.rs#L87
...
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4
votes
1
answer
77
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Is there any way to access the accountid inside the offchain worker?
I am coding a pallet in which I need to know who I am inside a offchain worker to check if I should send a transaction or not. Right now I have access to the account in the send_signed_transaction ...
- 148
0
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1
answer
38
views
Update ERC-20 Storage slot from Substrate
I'm trying to make a PoC (using frontier template) where I should update the balance of an EVM ERC-20.
I guess that the steps should be as follows:
Calculate the storage slot like this tool does: ...
- 1
1
vote
0
answers
40
views
EVM precompile actions always returns error code -32603 when called
We have started implementing a precompile for our NFT pallet but when I try testing it locally using Remix IDE when calling all of its actions I always get the following message:
Internal JSON-RPC ...
- 111
3
votes
2
answers
89
views
How to change evm token decimals?
native token of my chain has 12 decimals,now i have integrated EVM functionality into my chain, is there any way by which i can change evm decimals from 18 to 12 as i don't want to change my native ...
- 1,282
2
votes
4
answers
210
views
Private key for EVM Frontier
I am running the Frontier-Node-Template and using the library Web3JS to generate EVM transactions following the Moonbeam guide.
const Web3 = require('web3');
const web3 = new Web3('ws://127.0.0.1:9944'...
- 3,427
0
votes
1
answer
36
views
Error building frontier-node-template
I am trying to build the Frontier Node Template from this code or from the Frontier repository.
But when running the cargo build --release I am getting the following error:
error: non-defining opaque ...
- 3,427
2
votes
1
answer
98
views
Getting `insufficient funds for gas * price + value` error when performing transaction with another account than Alice
I'd like to use Substrate Frontier as a private blockchain for my current project. I have set up a project using a frontier-template-node build and I am now trying to adjust its settings.
I am ...
- 31
2
votes
1
answer
58
views
Frontier EVM integration: UnknownTransaction::NoUnsignedValidator error occurs while transferring funds via Metamask
I'm integrating Frontier EVM into my Substrate chain and facing the following issue while trying to send some funds between accounts via metamask:
[ethjs-query] while formatting outputs from RPC '{&...
- 81
2
votes
1
answer
60
views
Explorer for Substrate-based EVM chains
I've built an EVM-compatible blockchain using Substrate and connected it with Metamask and PolkadotJs explorer. But I want a more user-friendly explorer that users with a non-technical background can ...
- 137
0
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0
answers
63
views
build NPOS EVM commpatible chain
What's the best project setup to build an NPoS and EVM Compatible chain at this moment?
Which version/branch of polkadot release to use? such as polkadot-v0.9.22 or polkadot-v0.9.18?
Use ORML or ...
0
votes
1
answer
39
views
What is the maximum contract size limit for frontier EVM smart contract?
Does the contract limit size information shown in the link below holds true for Frontier EVM also?
https://ethereum.org/en/developers/docs/smart-contracts/#limitations
1
vote
1
answer
50
views
Can an off-chain worker read/write the state of an EVM contract?
Let's assume we have a frontier-based node with smart contract X. From an off-chain worker, we want to call X.some_method() which will return data, and then the worker would use this data to make some ...
- 1,023
7
votes
1
answer
65
views
getting Error's while adding pallet_evm to runtime " the trait bound `pallet_evm::Pallet<Runtime>: Callable<Runtime>` is not satisfied in `Call`"
I am trying to add Evm pallet to my substrate runtime i am using Polkadotv0.9.25 for both substrate and frontier but getting error of trait bound for almost every pallet.
error:- within Call, the ...
- 1,282
0
votes
1
answer
13
views
Precompile error.. main runtime: panicked at 'Digest item must match that calculated,'
I was adding a new precompile function to my parachain,
then when I ran my parachain and invoked one of the precompile functions, I got this error from one of the polkadot validators:
Relaychain ...
- 1,033
6
votes
1
answer
76
views
cannot find function `memory_teardown` in module `sandbox`
I am trying to add evm_pallet with NPOS consensus( i.e babe and staking) but while adding evm_pallet to runtime getting error..
active toolchain
1.59-x86_64-unknown-linux-gnu (default)
rustc 1.59.0 (...
- 1,282
0
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0
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27
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duplicate lang item in crate std (which ansi_term depends on): panic_impl - Cannot use dependency
I was trying to use this ansi_term dependency in my project/precompiles/utils/src/lib.rs.
Here is my file structure:
my_parachain/
├── ...
└──precompiles/utils
├── macro
├── src/lib.rs
└...
- 1,033
3
votes
2
answers
146
views
Frontier: How to change EVM gas fee charged in calling precompile functions
Regarding the EVM gas fee used for calling precompile functions, how can I set that fee to zero so that the MetaMask will show zero fee at invoking those precompile functions?
I saw a demonstration of ...
- 1,033
1
vote
1
answer
118
views
How to make gasless(EVM balance) transaction in Frontier EVM for certain Ethereum smart contract functions?
How is gasPrice determined in Frontier EVM?
I found the following settings in the Frontier/template/src/runtime/lib.rs
impl pallet_evm::Config for Runtime {
type FeeCalculator = BaseFee;
type ...
- 1,033
1
vote
1
answer
62
views
How to make feeless(for parachain runtime balance) transaction in Frontier EVM for certain Ethereum smart contract functions?
And I learned about how to wrap a pallet to make a precompile for Ethereum users to call those pallet functions ... see the video at https://www.youtube.com/watch?v=V9KfvhoqLJ4&t=1004s (time = 01:...
- 1,033
0
votes
1
answer
49
views
Building precompile mock results in error[E0277]: the trait bound `currencies::MultiCurrencyPrecompile<TestRuntime>: Precompile` is not satisfied
I am currently implementing a mock for our EVM precompiles but ran into the following error when building the tests
error[E0277]: the trait bound `currencies::MultiCurrencyPrecompile<...
- 111
0
votes
1
answer
28
views
Unable to author block in slot 270671004,. `can_author_with` returned: `spec_name` does not match
I have changed the name on my spec.json and I am getting this erro
Unable to author block in slot 270671004,. `can_author_with` returned: `spec_name` does not match `X` vs `node-frontier-template` ...
- 131
1
vote
0
answers
229
views
Zombienet: wasm trap: wasm `unreachable` instruction executed
I was trying to deploy Ethereum smart contracts to my parachain as part of a Zombienet test... After deploying a bunch of contracts including demo,
BoxU, ERC1820, ERC20, ERC721, ERC1155, ERC777, ...
- 1,033
0
votes
2
answers
71
views
Is it possible to run moonbeam/Astar as a standalone network
I am exploring moonbeam and astar projects. I would like to know if it is possible to run a standalone network without collators or relaychain.
I am interested in running a standalone network of one ...
- 131
0
votes
2
answers
69
views
Frontier template
I would like to build a frontier based node. However I am confused about what to start with
should I generate my template using the script ./node-template-release.sh as mentioned in https://github....
- 131
0
votes
1
answer
85
views
How to add Frontier code as a dependency to substrate-parachain-template based parachain?
Hi I was trying to add Frontier code to my substrate-parachain-template project.
I was following JoshOrndorff's tutorial and his commits here https://github.com/PureStake/substrate-node-template/...
- 1,033
0
votes
1
answer
49
views
the trait bound `Event: From<pallet_base_fee::Event>` is not satisfied
I was trying to add Frontier template into my substrate-parachain-template project...
when I added this code below in runtime/src/lib.rs:
impl pallet_base_fee::Config for Runtime {
type Event = ...
- 1,033
0
votes
1
answer
15
views
How to set FeeCalculator value to use BaseFee or FixedGasPrice in pallet_evm config?
I was trying to add Frontier into my parachain as a dependency...
then I got this error
Compiling parachain-template-runtime v0.1.0 (/mnt/sda3/polkadot/substrate-parachain-template-evm/runtime)
...
- 1,033
2
votes
3
answers
499
views
cannot find macro `vec` in this scope
I am trying to add Frontier as a dependency in my substrate-parachain-template.
Compiling sp-npos-elections v4.0.0-dev (https://github.com/paritytech/substrate?branch=polkadot-v0.9.25#3348e144)
...
- 1,033
0
votes
1
answer
29
views
trait `parity_util_mem::malloc_size::MallocSizeOf` is not implemented for `unchecked_extrinsic::UncheckedExtrinsic<Address, Call, Signature, Extra>`
I was trying adding Frontier as a dependency to my parachain project...
After fixing a few errors and adding UncheckedExtrinsic & CheckedExtrinsic:
pub type UncheckedExtrinsic =
...
- 1,033
0
votes
1
answer
33
views
error: failed to select a version for `parity-db`
I was trying to add Frontier as a dependency of my parachain(Substrate Cumulus based) project...
$ cargo build -r
Updating git repository `https://github.com/PNetwork/frontier`
Updating ...
- 1,033
1
vote
1
answer
170
views
submit transaction to pool failed: Pool(TemporarilyBanned)
When I tried to deploy an Ethereum smart contract to my parachain's Frontier EVM, I got this error:
running deployment script...
owner: 0x6Be02d1d3665660d22FF9624b7BE0551ee1Ac91b
user1: ...
- 1,033
1
vote
2
answers
107
views
deploy solidity ethereum to parachain with ExhaustsResources error
I can deploy a few Ethereum smart contracts into my parachain via Hardhat.
But those are only normal contracts. All the upgradeable contracts and ERC777 contract cannot be deployed with the ...
- 1,033
1
vote
1
answer
104
views
ProviderError: submit transaction to pool failed: Pool(InvalidTransaction(InvalidTransaction::Payment))
Hi I am trying to use Hardhat to deploy Ethereum smart contracts to my parachain with Frontier EVM inside. The Hardhat uses my own Typescript file to deploy contracts like this one: https://hardhat....
- 1,033
2
votes
1
answer
102
views
How to make a parachain project that uses Frontier as a dependency?
I have a parachain project that uses Frontier as a dependency with a specific Substrate version(polkadot-v0.9.24), but the Ethereum RPC does not work. So I need to find the bug there...
Also I am ...
- 1,033
0
votes
1
answer
66
views
How to make a Frontier demo for running Ethereum smart contracts?
Inside the Frontier repo, I found this template folder:
https://github.com/paritytech/frontier/tree/master/template
and its Readme says: This template is maintained in the Frontier project repository, ...
- 1,033
2
votes
1
answer
95
views
How to upgrade Frontier to use a specific Substrate version
The Substrate team(https://github.com/paritytech/substrate/) produces releases like polkadot-v0.9.25 every a few weeks,
and my team needs to upgrade our parachain to follow those Substrate versions.
...
- 1,033