Unanswered Questions
65 questions with no upvoted or accepted answers
7
votes
0
answers
96
views
Why do clients have to hardcode the extra types in the registry?
Context: I'm experimenting with an H160-address based substrate and I'm doing it from scratch (it's not a moon* or frontier template fork).
It's reasonably trivial to make changes to the substrate ...
- 158
5
votes
0
answers
98
views
I want to use Parity SCALE codec in Solidity? Is there any implementation of scale codec to decode bytes?
I want to decode bytes on the Solidity side that was decoded with scale codec.
Is the any implementation of scale codec (decode) on the Solidity side?
- 2,376
4
votes
0
answers
37
views
Is there a way to instantiate a contract from code_hash without ContractRef
From the documentation, we have 2 ways of instantiating a contract from a code_hash, but both require a ContractRef.
In order to obtain ContractRef we have to import the contract crate as a dependency ...
- 76
3
votes
0
answers
39
views
Why is the index of a pallet a u32(usize) instead of u8 when queried?
I'm implementing a flow where I first ask what index a pallet has with the QueryPallet xcm instruction, and then construct a call to use with Transact.
I see that to construct manually an encoded call ...
3
votes
0
answers
53
views
After using set_code_hash to upgrade contract, when decode on the new Storage，why there wont has error of "Not enough data to fill buffer"
I'm learning how to upgrade ink! contract，and have some question：
Eg：old contractA, storage define is
#[ink(storage)
pub struct MyContract {
a: u32,
}
new contractB，storage define is
#[ink(...
- 31
3
votes
1
answer
71
views
Can we define ink_e2e tests outside of contracts module?
devs. I am writing the e2e tests for my smart contracts using ink_e2e
In contracts, I define the e2e-tests like this.
#[openbrush::contract]
pub mod controller {
...
#[cfg(all(test, ...
CommunityBot
- 1
3
votes
1
answer
89
views
Build the data bytes to query a contract with the api state_call
I would like to use the rpc call to query a contract.
I try to use the method "call" from the endpoint "state" with the first parameter "ContractsApi_call" but I am not ...
CommunityBot
- 1
3
votes
1
answer
55
views
No caller has been set
I write tests for my smart contract and got this error:
no caller has been set
The error comes from: ink_engine-4.2.0/src/ext.rs:325:14. In function that I want to write tests I have following line:
...
CommunityBot
- 1
3
votes
0
answers
33
views
How can I use complex structure in ink! version3
how can i use the complex structure(like Mapping<String, Vec<Map<String, String>>>) in ink!
#![cfg_attr(not(feature = "std"), no_std)]
use ink_lang as ink;
#[ink::...
- 374
3
votes
0
answers
32
views
How to migrate / backup & restore ink smart contract storage?
Is there a way to backup ink smart contract storage and later restore on another chain? Lets say we have chain with 3 validators and deployed smart contract containing certain information in its ...
- 374
3
votes
0
answers
86
views
Steps to import a parachain running in a production environment to test environment?
I am using export-state to copy a parachain running in production environment to development with all the configuration and blocks data. I am following these steps. Can any one please review the steps,...
- 8,455
3
votes
0
answers
83
views
Ways to mock client + custom runtime api from client side
I have some code in a Substrate client that needs to call one of my runtime apis. I'd like an easy way to mock the client and custom runtime api functions to check that they're called.
Is there an ...
- 566
2
votes
0
answers
54
views
Deployment of contract and calling its function is taking too much fees
I have configured the transaction fees to be approximately 40. However, when deploying a smart contract on an EVM-compatible chain, the fees amount to be 2300, and when calling this function, the ...
- 847
2
votes
0
answers
17
views
How can I mint new token from ink smart contract calling pallet-balances function?
How can I mint a new native token (not a custom token) from the ink smart contract calling one of the functions from pallet-balances pallet?
- 341
2
votes
1
answer
35
views
How to Modify static buffer size for my ink smart contract to Resolving 'OutputBufferTooSmall' Error for Larger Vectors in ink smart contract
I'm facing an 'OutputBufferTooSmall' error in my [Language/Framework] code when working with larger vectors. I suspect this is related to the maximum allowed input/output sizes. I need guidance on how ...
CommunityBot
- 1