react-async-concurrent

Dummy package for declarative(JSX) sequential promise execution

...
<Async promiseFn={promiseFn}>{render}</Async> // this promiseFn starts at first
<Async promiseFn={promiseFn}>{render}</Async> // starts after finishing first
<Async promiseFn={promiseFn}>{render}</Async> // starts after finishing seccond
...

Index

• async
  • Async
• context
  • AsyncRoot
  • contextAsync

Async

Component (wrapper) which will put promise result into children (FaCC) or renderResult function

Props

• renderPending ({status: pending}) - optional callback for rendering pending status: (promiseFn was not called or canceled. Component is waiting for finishing other concurrent promises)
• renderProgress ({status: progress}) - optional callback for rendering progress status: (promiseFn was called but promise did not fulfilled yet)
• renderError ({error, status: error}) - optional callback for rendering error status: (promiseFn promise throws error)
• promiseFn - function callback that should create new promise. will be called if all child promises resolved. supports cancelable promises such as cancelable-promise
• children - FaCC with arguments {lastResult/result:"Awaited result of promiseFn", status: pending|progress|error|result} if children is set - renderers renderPending/renderProgress/renderError/renderResult will be ignored
• asyncStart - do not wait for finishing concurrent promises. call promiseFn immediately
• asyncChildren - children will have parallel concurrent context
• awaited - promiseFn will not block other concurrent promises

Example

https://qz8j6h.csb.app/

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Bugs

• React.StrictMode runs all promiseFn at first render in codesandbox env

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subpath imports support (ESM/CommonJs)