https://github.com/jderochervlk/rescript-future

Functional Futures for ReScript
https://github.com/jderochervlk/rescript-future

Last synced: 9 days ago
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Functional Futures for ReScript

• Host: GitHub
• URL: https://github.com/jderochervlk/rescript-future
• Owner: jderochervlk
• Created: 2024-02-12T16:24:32.000Z (11 months ago)
• Default Branch: main
• Last Pushed: 2024-02-15T00:27:34.000Z (10 months ago)
• Last Synced: 2024-03-15T00:51:31.073Z (9 months ago)
• Language: JavaScript
• Size: 20.5 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# @jvlk/rescript-future

## Installation

```sh

npm install @vlk/rescript-future

```

Update `rescript.json`.

```json

{

    "bs-dependencies": [

        "@jvlk/rescript-future"

        ]

}

```

## Basic Example

```rescript

let _ =

  Future.fetch("http://httpstat.us/200")

  ->Future.flatMap(res => {

    switch res->Fetch.Response.ok {

    | true => Ok(res)

    | false =>

      Error(`${res->Fetch.Response.status->Int.toString}: ${res->Fetch.Response.statusText}`)

    }

  })

  ->Future.map(res => res->Fetch.Response.statusText)

  ->Future.fold(Console.error, Console.log)

```

More examples can be found in the `examples` directory.

### React

```rescript

@react.component

let make = () => {

  let request = Future.fetch("http://httpstat.us/200?sleep=1000")

  


     {

        request->Future.reset // reset the future to make sure the Abort Controller is new

        Console.log("clicked!")

        let _ = request->Future.fold(Console.error, Console.log)

      }}>

      {"Start"->React.string}

    

     {

        let _ = request->Future.cancel // Aborts the fetch request and stops any processing of the response

      }}>

      {"Cancel"->React.string}

    

  

}

```