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https://github.com/artem328/go-promise
The promises API for Go
https://github.com/artem328/go-promise
Last synced: about 1 month ago
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The promises API for Go
- Host: GitHub
- URL: https://github.com/artem328/go-promise
- Owner: artem328
- License: mit
- Created: 2023-12-23T16:00:06.000Z (about 1 year ago)
- Default Branch: master
- Last Pushed: 2023-12-26T06:01:46.000Z (almost 1 year ago)
- Last Synced: 2023-12-26T18:27:49.019Z (12 months ago)
- Language: Go
- Homepage:
- Size: 21.5 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# GoPromise
[](https://pkg.go.dev/github.com/artem328/go-promise)
[](https://github.com/artem328/go-promise/actions/workflows/go.yml)
[](https://codecov.io/gh/artem328/go-promise)
The promises API for Go with:
- Promise chaining
- Panic handling
- Generic support
## Installation
Add import to your go source code and that's it
```go
import "github.com/artem328/go-promise"
```
## Example
```go
package main
import (
"fmt"
"github.com/artem328/go-promise"
)
func main() {
p := promise.New(func(resolve func(int), reject func(error)) {
var i int
// do something here
resolve(i)
}).
Then(func(i int) *promise.Promise[int] {
p, resolve, _ := promise.WithResolvers[int]()
go func() {
var j int
// do something else
resolve(i + j)
}()
return p
}).
Then(func(j int) *promise.Promise[int] {
// do something again
return promise.Resolve(j + 10)
}).
Catch(func(err error) *promise.Promise[int] {
// log error
}).
Finally(func() *promise.Promise[int] {
// all done (whether successfully or not)
})
i, err := p.Await()
if err != nil {
panic(err)
}
fmt.Println("result", i)
}
```