Questions tagged [rpc]
Questions relating to custom RPC implementations or using existing RPCs to make calls to a Substrate node.
25
questions with no upvoted or accepted answers
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answers
202
views
How to implement `into_rpc` method in jsonrpsee's rpc macro
I'm trying to add custom RPC to Substrate node template.
As explained in the jsonrpsee's proc_macro doc here, I define BalancesApi trait where #[rpc(server)] attribute added, and implement ...
- 432
2
votes
0
answers
86
views
Fuzzing Polkadot produces Invalid Signature after chaos is injected
I'm using Polkadot version 0.9.37-08b1c09ca46, across 4 Nodes - Alice, Bob, Charlie, Dave, in a local testnet environment. I have a period of network chaos applied, and then moments of stabilized '...
- 21
2
votes
0
answers
96
views
RPC apis & node entry-points
I am trying to identify all the possible entry points that an extrinsic can reach the node.
From my understanding so far the following rpc endpoints are the only ones that can add transactions to the ...
- 21
2
votes
0
answers
45
views
Load balancing across RPCs
I’m looking for resources on how to implement a front end load balancing mechanism for splitting traffic across RPCs.
I know polkadot.js.org has something running that does this and I think it might ...
- 31
1
vote
0
answers
17
views
Rpc call showing empty in evm integrated chain?
i have been working on polkadot layer 0 chain. i have integrated evm frontier on layer 0 chain and everything is working fine .when i try to call rpc (eth.getcode) it is showing empty . can some ...
- 363
1
vote
2
answers
37
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What are the RPC endpoints that is usually unique to Substrate vs the unique to Polkadot nodes?
I used typegen to generate types for Substrate, Kusama and Polkadot networks. And I got the exact same types for the rpc endpoints (rpc methods). Is this normal? Should not be there some unique ...
- 111
1
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0
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58
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How are the node threads and tasks managed?
When we run a node, we start a bunch of tasks using task_manager.spawn_handle() or task_manager.spawn_essential_handle().
From my understanding, those spawn new Tokio tasks.
If my computer has ...
1
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0
answers
28
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how to solve mismatched type error in substrate?
I have been integrating paritytech frontier(0.9.43) version with the substrate 0.9.43 version . while integrating when i added frontier changes in rpc.rs and service.rs file i am facing this error. ...
- 363
1
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0
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28
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How to curl `ink!` contract storage?
I'm trying to use curl to query an ink contract's storage using the RPC of substrate. I've looked at the below question
How do I call the RPC method `contractInfoOf` using curl?
but it does not ...
- 579
1
vote
1
answer
63
views
Best way to automate extrinsic submissions for testing
I am developing a chain in substrate, and am trying to find the best way to run integration tests against certain sets of extrinsic submissions when the network is running in development mode. It's ...
- 418
1
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0
answers
28
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RPC enabled? CLI configuration?
I need to determine whether RPCs are enabled in a OCW. I am thinking that I could check rpc_external and/or ws_external in sc_cli::commands::run_cmd but (1) is this the best way and (2) if it is, how ...
- 540
1
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26
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upgrade custom chain to 0.9.24, rpc-client/src/main.rs report "no `AuthorClient` in `author`"
report "no AuthorClient in author" in rpc-client/src/main.rs when i upgrade chain to 0.9.24
report "add dyn keyword before this trait" if i change to AuthorApiClient.
does ...
- 141
1
vote
0
answers
65
views
Get System info in custom RPC call
Hello I would like to be able to call
fn system_name(&self) -> RpcResult<String> {
Ok(self.info.impl_name.clone())
}
inside a custom rpc call
our custom rpc call is implemented like ...
- 131
0
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0
answers
8
views
how to use Substrate RPC metrics in Grafana
I need to use substrate_rpc_calls_time, substrate_rpc_calls_started, substrate_rpc_calls_finished to show RPC metrics on Grafana dashboard.
I added following section in my prometheus config file:
{
...
- 557
0
votes
0
answers
17
views
how to use substrate-rpc-client query storage
I am trying to use substrate-rpc-client for querying a storage item in our chain, the documentation is very sparse on how to go about this. just says
client.storage(StorageKey(vec![]), Some(H256::...
0
votes
2
answers
36
views
How to declare a RPC endpoint in the node config?
The public-addr option allows to declare the node p2p endpoint, allowing to use DNS for example, or different port than the listen port if using docker port mapping.
--public-addr <PUBLIC_ADDR>.....
- 373
0
votes
1
answer
41
views
Force bonding withdrawal period to 0 days
I run a local testnode using chopsticks and I want to unbond funds right after I bond them.
What configuration I could use in chopsticks or RPC call I could make to make sure I can withdraw my funds ...
- 101
0
votes
0
answers
40
views
Rpc methods not decorated
Goal
I'm trying to decorate the rpc methods to be able to interact with api.tx. If anyone has faced this issue, what has helped you out?
Issue
I'm not able to access tx method inside of api, which I ...
0
votes
0
answers
48
views
Error querying evm rpc endpoint on a node run by Chopsticks
I'm trying to run a local node using Chopsticks and connect to it using Metamask, but when I make the request to the eth-rpc-adapter, it fails. Here are the steps I followed with the corresponding ...
- 394
0
votes
0
answers
87
views
Connect a frontend application with a Substrate blockchain as a backend without using an RPC endpoint
I'd like to connect my frontend application (built on Rust) to be able to connect to my network without using any hardcoded endpoints to create a bottleneck for DDoS attacks. One possibility for this ...
- 436
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0
answers
22
views
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
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answers
13
views
Does Substrate support custom node specific environment vars or flags
I have a pallet that should have access to a secp256k1::Keypair for signing messages. And I want to be able to start the node with either the secret_key string or a path to a key-file. Then have the ...
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0
answers
25
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Adding RPC node in private network without node authorization
I have set up a private network and it has node_authorization pallet included. I have added several validator nodes by using the node_authorization pallet as well_known nodes.
Now I want to allow some ...
- 99
0
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39
views
Implementing FullDeps in Substrate rpc.rs using channels instead of Arcs
This is a standard implementation of FullDeps in the rpc.rs:
// Full client dependencies.
pub struct FullDeps<C, P, SC, B> {
/// The client instance to use.
pub client: Arc<C>,
...
- 436
0
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0
answers
59
views
StakerStatus is not updating on my custom explorer
I have made a custom explorer of a substrate based blockchain, and when i am chilling the staker, its status is not updating to inactive on the custom explorer, is there any RPC call or any other way ...
