How to fix JSON indentation in vim?

Question

In vim, the default indentation for JSON is:

{
    \"employees\": [
    { \"firstName\":\"John\" , \"lastName\":\"Doe\" }, 
    { \"firstName\":\"Anna\" , \"         


        

Answer 1

Easier way is to just external command as a filter for a selection. e.g.

1. Make a selection
2. Type :!python -m json.tool

Answer 2

Add this statement to /etc/vim/vimrc:

autocmd Filetype json setlocal ts=2 sw=2 expandtab

It will force json presentation with 2 spaces tab, besides defining tab behaviour for such file.