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Results tagged with offchain-worker
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user 393
Oracle-like capabilities for Substrate chains.
4
votes
When does an off-chain worker get executed?
Except your question about ocw, for your target "So before this storage changes I want to use offchain_worker() to dump storage to some http server", I think it's not a great scenario to use OCW/OCS.
…
2
votes
Persistent Offchain Worker Storage
I think StorageKind is used to distinguish between different behavior when block revert or fork happens.
And, if storage use memory or disk is depends on the DatabaseSettings.source configuration, suc …
2
votes
Accepted
Only one node should make http call from OCW
"And have a question is it possible to configure OCW so that if one node starts an HTTP call in OCW other nodes will skip it", you can add a judgement to make sure only the author of the block will ex …
2
votes
Accepted
Is it possible to query an OCW's Off-chain storage via RPC from an external service?
Yes, Custom RPC work for the off-chain runtime. Custom Rpc Doc
For example, you can define custom rpc in the following way:
#[rpc]
public trait SomeOcsApi {
#[rpc(name="some_method")]
fn some …