Questions tagged [substrateinterface]
The substrateinterface tag has no usage guidance.
12
questions
3
votes
2
answers
124
views
How key-values database and Merkle Tree works together on Substrate
I have been looking deep dive into Substrate and trying to understand things behind the hood, especially storage API.
I am really keen to explore more in the Merkle abstraction between Storage API and ...
- 55
1
vote
0
answers
20
views
How do externalities work in runtime?
What makes me confused about the runtime is the Externalities. I found the definition in sp_externalities, moreover I found that the pub fn set_and_run_with_externalities(ext: &mut dyn ...
- 21
2
votes
1
answer
47
views
How to obtain the staking amount for non-active validators?
Using substrate-interface I'm trying to get the amount of DOT in staking for non-active validators, those that are waiting.
I can get the active validators' amount by using the storage_function ...
- 21
3
votes
1
answer
18
views
Access The Unbonding Amount With Substrate Query
I'm trying to measure the unbonding amount directly from a substrate-interface query.
Here's the amount I'm interested in:
I can get some account information with this query:
value = self....
- 41
4
votes
2
answers
69
views
How to find how many transactions are pending from address to be added to block?
In my application, I need to fire multiple transactions from same address, and want to create statusCheck() function, which will let me know how many transactions of total are still pending to be ...
- 81
3
votes
1
answer
47
views
How to understand [runtime-interface] and `Externalities`?
I am struggling with #[runtime_interface] the whole day. here is the Runtime Interface Trait Defination, the expanded macro is too long to paste here, here is a expanded macro. I have lots of ...
- 393
4
votes
1
answer
44
views
How to convert substrate Specific Types(Option<BalanceOf<T>> ) to Rust Primitive types (U64)?
I don't know how can I convert Option<BalanceOf> (subtrate specific type)to u64 (rust primitive types)?
I followed this article( How do you convert between Substrate specific types and Rust ...
- 105
0
votes
0
answers
31
views
How to solve " ValueError: Element count of value (1) doesn\'t match type_definition (2)" when I teleport ksm in kusama to ksm in statemine? [duplicate]
I want to teleport the ksm in kusama to ksm in statemine. I use the code
call = _substrate.compose_call(
call_module='XcmPallet',
call_function='limited_teleport_assets',
...
- 11
1
vote
1
answer
22
views
Can generate an address by mnemonic with the sdk substrate-interface?
I want to generate an kusama address. The substrate-interface can make it?Or how to generate an ss58 format address by python
- 11
0
votes
1
answer
40
views
How to solve the issue"Element "asset_id" of struct is missing in given value" when I send a token transaction
I send the transaction using the substrate interface.
I get the key pair and call:
call_module = "Assets"
call_function = 'transfer'
call_params = {
"id": asset_id,
"...
- 11
1
vote
1
answer
49
views
How to decode and encode transactions by using substrate?
I want to decode blocks and transactions from the Node. I want to use https://github.com/paritytech/substrate . But I can not find methods about it. Could you tell me where it is ?
- 11
0
votes
1
answer
51
views
Retrieve reason of fail substrate rpc call
I would like to know if there is a way for understanding why a rpc call via python substrate-interface is failing.
On my case, I'm using python substrateinterface lib. And in function "...
