How to Go pretty print to a JSON file

[nko...@gmail.com]

Here's what I do to write a structure to a JSON file -

    type userInputs struct {
     ...
    }

    userInputsJson := userInputs{}
    // Fill  userInputsJson

    fp, err := os.Create(DFLT_INPUT_FILE)
    if err != nil {
        logger.Fatalf("Unable to create %v. Err: %v.", DFLT_INPUT_FILE, err)
        return err
    }
    defer fp.Close()

    encoder := json.NewEncoder(fp)
    if err = encoder.Encode(userInputsJson); err != nil {
        logger.Fatalf("Unable to encode Json file. Err: %v.", err)
        return err
    }

The output is a JSON file that's not very pleasing to the eye. I'd like to have it indented, I looked up online to find MarshalIndent that does it, but I'm not sure how to output that to a file. What am I missing?

Thank you!

[C Banning]

http://play.golang.org/p/5V5_IFM2jb

[nko...@gmail.com]

That worked like a charm. Thank you very much! :)

[nko...@gmail.com]

Just wondering if there is way to add comments in the JSON file like right next to the fields.

[James Bardin]

On Monday, February 24, 2014 1:35:06 PM UTC-5, nko...@gmail.com wrote:

Just wondering if there is way to add comments in the JSON file like right next to the fields.

Probably not, since comments aren't allowed in JSON. 

[Qiang Han]

Why do you use a buffer to read/write, what is the benefit of doing so?

[zhouhon...@gmail.com]

That's awesome. Thanks a lot.

在 2014年2月22日星期六 UTC+13上午8:36:49，C Banning写道：

[Rohit Jain]

https://github.com/davecgh/go-spew

It's the best 

`spew.Sdump` will basically cover your case

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Rohit Jain

[Dan Kortschak]

Or if you want almost Go syntax output:

https://github.com/kortschak/utter

/plug