# gotry

This package is a fork of lainio's [err2](https://github.com/lainio/err2)
package with an improved code generator.

## Add custom try package to your project

```
go install code.thetadev.de/ThetaDev/gotry/gotry_generate

gotry_generate -init
```

### Add type definitions

```
📂 try/types.csv

<Handler method name>;<Type>;<Import#1>;<Import#2>;...

# Example:
DB;*gorm.DB;gorm.io/gorm

# Add +s to the method name to generate 2 handlers for single values and slices
String+s;string
```

### Generate

```sh
go generate ./try
```

## Handle errors

Instead of the idiomatic go way of handling errors, which involves if-conditions for every possible
error, ...

```go
func myFunction() (err error) {
  b, err := ioutil.ReadAll(r)
  if err != nil {
    return err
  }
}
```

you can wrap the error-throwing function in a try wrapper.

```go
func myFunction() (err error) {
  defer err2.Return(&err)

  b := try.Bytes(ioutil.ReadAll(r))

  return
}
```