json.Decode or json.Marshal

[Q-bert (Valeh)]

Hello everyone !
I have a simple question.
Imagen you get a json data from your frontend and your backend in golang.
When i should use Marshal and when i should use Decode ?

[joncalhoun]

Based on this article you may want to consider using Marshal and Unmarshal instead of the decoder/encoders.

[calmh (Jakob Borg)]

That article is rather outdated and you can use either. If you have reason to expect broken JSON and want to print a reasonable error message you might prefer having the JSON in a byte slice and using unmarshal.

[Q-bert (Valeh)]

Thank you all for you answer . Helped me very much.