https://github.com/denchenn/blunder

A modern golang error handling package powered by GPT-3.
https://github.com/denchenn/blunder

codegen error-handling gin golang gpt-3 grpc template

Last synced: about 1 month ago
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A modern golang error handling package powered by GPT-3.

• Host: GitHub
• URL: https://github.com/denchenn/blunder
• Owner: DenChenn
• License: mit
• Created: 2023-05-18T19:48:40.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-09-14T11:35:21.000Z (over 1 year ago)
• Last Synced: 2024-11-02T07:14:06.444Z (about 2 months ago)
• Topics: codegen, error-handling, gin, golang, gpt-3, grpc, template
• Language: Go
• Homepage:
• Size: 43.9 KB
• Stars: 15
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Blunder

![GitHub](https://img.shields.io/github/license/DenChenn/blunder)

![Go Report Card](https://goreportcard.com/badge/github.com/DenChenn/blunder)

## What is Blunder?

Blunder is a simple, gpt-based and easy-to-use error handling package for golang. 

It generate typed errors and manage them in centralized way, which reduce the dependency between packages and make error handling more convenient.

## Getting Started

1. Install package

   ```bash

    go get github.com/DenChenn/blunder

   ```

2. Import into your project

   ```bash

   printf '// +build tools\npackage tools\nimport (_ "github.com/DenChenn/blunder")' | gofmt > tools.go

   go mod tidy

   ```

3. Initialize Blunder

   ```bash

    go run github.com/DenChenn/blunder init 

   ```

3. Define your error in `blunder.yaml` according to example ❤️

4. Generate all errors

   ```bash

    go run github.com/DenChenn/blunder gen

   ```

   or generate with gpt-based auto-completion

   ```bash

    export OPENAI_API_TOKEN=

    go run github.com/DenChenn/blunder gen --complete=true 

   ```

## Usage

Suppose your errors in `blunder.yaml` are defined like this:

```yaml

details:

- package: alayer

  errors:

    - code: Err1

      #...

    - code: Err2

      #...

    - code: Err3

      #...

- package: blayer

  errors:

    - code: Err1

      #...

    - code: Err2

      #...

    - code: Err3

      #...

```

Your error will be generated in given path like this:

```

/errors/

generated/

  alayer/ 

    errors.go

  blayer/

    errors.go

blunder.yaml

```

Which can be import into your code like this:

```go

if err != nil {

  if errors.Is(err, &alayer.Err1) {

    //...

  }

}

```

Or you can wrap your error like this:

```go

if errors.Is(err, &pgx.ErrNoRows) {

  return &alayer.Err1.Wrap(err) 

}

```

## Type assertion

All generated errors implement `blunder.OrdinaryError` interface, which contains static methods.

```go

ordinaryError, ok := err.(blunder.OrdinaryError)

if ok {

	fmt.Println(ordinaryError.GetMessage())

}

```