58 lines
963 B
Markdown
58 lines
963 B
Markdown
# gotry
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This package is a fork of lainio's [err2](https://github.com/lainio/err2)
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package with an improved code generator.
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## Add custom try package to your project
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```
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go install code.thetadev.de/ThetaDev/gotry/gotry_generate
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gotry_generate -init
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```
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### Add type definitions
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```
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📂 try/types.csv
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<Handler method name>;<Type>;<Import#1>;<Import#2>;...
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# Example:
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DB;*gorm.DB;gorm.io/gorm
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# Add +s to the method name to generate 2 handlers for single values and slices
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String+s;string
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```
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### Generate
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```sh
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go generate ./try
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```
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## Handle errors
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Instead of the idiomatic go way of handling errors, which involves if-conditions for every possible
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error, ...
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```go
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func myFunction() (err error) {
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b, err := ioutil.ReadAll(r)
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if err != nil {
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return err
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}
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}
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```
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you can wrap the error-throwing function in a try wrapper.
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```go
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func myFunction() (err error) {
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defer err2.Return(&err)
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b := try.Bytes(ioutil.ReadAll(r))
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return
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}
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```
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