paritytech / paritytech/subxt

`RuntimeUpdaterStream` should have a `try_next` or some non-blocking `next`

Open
#816 3 comments 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Dominant language
Rust
Stars
489
Forks
293
Avg merge
18h 35m
Merged PRs (30d)
3

Description

The examples given spawn this update stream in a separate thread, so it doesn't blokck, but sometimes (for operation sequencing) this may not make sense. It would be helpful to have a try_next() that returns Option or Result if there's no item. Async channels tend to return Result and then the Error enum can have variants representing NoItems and ChannelClosed.

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Locate RuntimeUpdaterStream and the examples that spawn this update stream, then inspect how its current next operation behaves. The work is done when a non-blocking operation is defined for the stream, including the no-item and channel-closed outcomes, with the Option-versus-Result behavior resolved.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
backend-api-design
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.