https://github.com/jlegrone/temporal-sdk-go-generics

A go1.18 wrapper to provide a generics based API for Temporal.
https://github.com/jlegrone/temporal-sdk-go-generics

Last synced: about 1 month ago
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A go1.18 wrapper to provide a generics based API for Temporal.

• Host: GitHub
• URL: https://github.com/jlegrone/temporal-sdk-go-generics
• Owner: jlegrone
• License: mit
• Created: 2021-12-29T01:05:53.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2021-12-30T22:17:45.000Z (about 3 years ago)
• Last Synced: 2024-10-14T18:37:19.475Z (3 months ago)
• Language: Go
• Size: 45.9 KB
• Stars: 2
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# temporal-sdk-go-generics

A go1.18 wrapper to provide a generics based API for Temporal.

## Project Status

This module is strictly a thought experiment and is unlikely to be maintained. Please don't develop dependencies on it.

## Why

### Before Generics

This compiles, but will error at runtime:

```go

package helloworld

import (

	"context"

	"go.temporal.io/sdk/workflow"

)

func Workflow(ctx workflow.Context) (string, error) {

	var result string

	// The activity should be passed a string, not an integer.

	err := workflow.ExecuteActivity(ctx, Activity, 42).Get(ctx, &result)

	if err != nil {

		return "", err

	}

	return result, nil

}

func Activity(ctx context.Context, name string) (string, error) {

	return "Hello " + name + "!", nil

}

```

### After Generics

This will fail to compile with a human readable error:

```

helloworld.go:11:55: cannot use 42 (untyped int constant) as string value in argument to workflow.NewActivityClient(Activity).Run

```

The code to get the activity's return value can also now be more terse.

```go

package helloworld

import (

	"context"

	"github.com/jlegrone/temporal-sdk-go-generics/workflow"

)

func Workflow(ctx workflow.Context) (string, error) {

	// The activity should be passed a string, not an integer.

	return workflow.NewActivityClient(Activity).Run(ctx, 42)

}

func Activity(ctx context.Context, name string) (string, error) {

	return "Hello " + name + "!", nil

}

```