Questions tagged [json-rpc]
The json-rpc tag has no usage guidance.
8
questions with no upvoted or accepted answers
6
votes
0
answers
182
views
How to use the default Substrate CLI rpc-cors values without using rpc-cors=all for a Collator node and connect from Polkadot.js Apps
I want to be able to connect a collator node using https://polkadot.js.org/apps that is based on the substrate-parachain-template using branch 'polkadot-v0.9.18' and is being run as a parachain in ...
- 2,292
2
votes
0
answers
39
views
How can I use the --rpc-cors flag properly?
I m attempting to use the --rpc-cors flag to specify certain domains that are allowed to send requests to my chain (localhost - substrate-node-template). However, regardless of how I use this flag, I ...
- 113
2
votes
0
answers
68
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
1
vote
0
answers
37
views
Subscribe via json-rpc has no response
I don't get any response from json-rpc subscription.
It seems I need a type paramater, but the provider.subscribe() method does not document the type parameter. (I checked the js, java and python code,...
- 205
1
vote
0
answers
94
views
Metadata V12 / V14
We just migrated from substrate v3 to substrate v4, after that I expected to have metadata V14 when I'll call state_getMetadata rpc method.
but I still get V12 metadata and I don't understand why.
If ...
- 131
1
vote
0
answers
59
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
votes
1
answer
50
views
upgrading substrate node from Polkadot 0.9.28 to 0.9.40
I have a substrate node of Polkadot 0.9.28. It is customised to enable contracts, and I have enabled the contract and runtime pallets. The tutorial I worked on is no more available in substrate docs. ...
0
votes
1
answer
113
views
Custom RPC sized array parameters
I have custom RPC, which looks like so
#[rpc(client, server)]
pub trait SomeRpcApi {
#[method(name = "some_submitData")]
async fn submit_data(
&self,
id: u64,
...
- 133