Total Pageviews

Tuesday 3 January 2017

json文件生成器-jsonformat

jsonformat takes a stream of JSON objects from stdin and brings them into a (user) specified format.

Installation

A simple go get should do the trick

Usage

jsonformat supports two formats right now:
  • template which is a thin wrapper around Go's templating language and allows great complexity
  • csv which is actually just a generator for template, but hides most of the complexity to make generating CSV-style output easier.

Examples

Testdata

json.txt:
{
    "Name": {
        "FirstName": "John",
        "LastName": "Doe"
    },
    "Age": 25,
    "NetWorth": 22.23
}
{
    "Name": {
        "FirstName": "Jane",
        "LastName": "Doe"
    },
    "Age": 18,
    "NetWorth": 250123.2
}

template

$ cat json.txt | jsonformat -f template -s '{{.Name.FirstName}} {{.Name.LastName}} - {{.NetWorth|dec(2)}}'
John Doe - 22.23
Jane Doe - 250123.20

csv

$ cat json.txt | jsonformat -f csv -s 'Name.FirstName=First Name|str,Name.LastName=Last Name|str,NetWorth=Net Worth|dec(3)'
First Name,Last Name,Net Worth
"John","Doe",22.230
"Jane","Doe",250123.200 
 
from https://github.com/voxelbrain/jsonformat