Questions tagged [wasm]
The wasm tag has no usage guidance.
100
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Suddenly TransactionPaymentApi_query_info is generating wasm errors at block height 21455372 (maybe runtime 1.2.5?)
I was using the following JSON-RPC method to hit query_info, but suddenly got a wasm error from today. Is this an effect of the runtime update?
If so, what changes are needed?
% curl -H "Content-...
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1
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27
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XVM Ink Wasm to EVM: Contract Reverted. Decoding Failed
I tried to deploy a XVM Wasm contract wrapping around a deployed EVM Solidity contract in my local node.
Steps
Deploy my EVM Solidity contract via Remix connecting to my local node
//SPDX-License-...
- 1,193
1
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13
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How can I manage the issue of excessive gas estimation in MetaMask when deploying a dapp contract on my WASM+EVM chain and calling its functions?
i am trying to deploy a dapp contract on my WASM + EVM based substrate chain but while calling the contract functions it gives me high gas estimation, how can i handle this issue?
- 790
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49
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How to debug an extrinsic (the runtime code) after migration to wasm-only execution in Polkadot?
Polkadot is moving away from native execution mode and in the first step they removed the native execution mode. This means that the --execution Native does not work anymore which is the solution in ...
- 23
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53
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IEEE 754 Floating Point Numbers wasm impelementation
We are looking to enable reproducible floating point operations on chain by implementing the IEEE 754 standard as an on-chain wasm function.
As discussed in this stackoverflow post,
substrate does not ...
- 291
1
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1
answer
77
views
`The trait Deserialize is not implemented for a` GenesisConfig
I am in the process of upgrading a project from version 0.9.42 to 1.6.0, where the BuildGenesisConfig was added and BuildGenesis was deprecated, and I encounter an error (the trait Serialize is not ...
- 115
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19
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Why are any of the `RuntimeApiSubsystemClient` trait methods marked `async` when its not needed?
The trait RuntimeApiSubsystemClient and its implementation DefaultSubsystemClient
(https://github.com/paritytech/polkadot-sdk/blob/c421b87978404954dec4555895d50ef028b73cf0/polkadot/node/subsystem-...
- 291
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22
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is the endpoint TransactionPaymentApi_query_info usable on current Westend testnet?
I was trying to query payment_queryInfo on current Westend testnet, and the following payload used to works at spec 9430.
{
"jsonrpc": "2.0",
"method": "...
- 123
2
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0
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25
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Is it possible to register parathread with compact.compressed wasm file
In official guides they use wasm built with export-genesis-wasm command to register a parathread/parachain:
https://youtu.be/BaWcQxKRFmM?t=134
https://docs.substrate.io/tutorials/build-a-parachain/...
- 249
3
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2
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32
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Is there any way to extract "method" and "params" of unchecked extrinsic using ScaleCode/TypeInfo traits?
I'm wondering if there is any way to extract information about method and parameter of Extrinsic(Unchecked/CheckedExtrinsic) using TypeInfo and Scale codec.
In polkadotJs there is toString method on ...
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34
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Custom RPC Error on sp_api::decl_runtime_apis!
We are adding a custom rpc and following along with
https://github.com/AlexD10S/susbtrate-node-template/blob/rpc-custom-methods/pallets/template/rpc/runtime-api/src/lib.rs
and
https://github.com/...
- 351
0
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20
views
What is the usecase of `PassBy` trait bound
While working on types between Runtime and Host functions, types going from Runtime to host function requires a PassBy trait bound while types going from Host function to Runtime does not need that ...
- 155
2
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40
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wasm compilation for later rust versions
I am running a parachain on Ubuntu 22.04 jammy. where i am using polkadot 9.43. I see that in release notes it is said that nightly-2023-05-22 was tested for this substrate version https://github.com/...
- 165
2
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1
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49
views
What is default --execution <strategy> and recommended value for node/validator operator?
When executing node as a validator, the documentation states here that there is differents execution strategy available, however as this is optionnal switches, what is default if nothing is set ?
...
- 21
1
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1
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172
views
Why is serde always std-gated in substrate?
I regularly see serde implemented for various structs across the substrate ecosystem, usually in the single-liner form below. Why is that gated behind the std feature? In serde's documentation, it's ...
- 418