python-fx 0.1.0

A python-native fx-alike terminal JSON viewer.

Pyfx

A python-native JSON Viewer TUI, inspired by fx.
Pyfx supports:

• Read JSON files in terminal from several sources (file, pipe or clipboard).
• Query JSON files using JSONPath query.

Table of Content

• Prerequisite
• Installation
  • PIP
  • Build from Source
• Quick Start
  • CLI
  • Python Module
• Configuration
  • Default Configuration
• License
• Changelog
• How to Contribute

Prerequisites

• OS: MacOS / Linux
• python: >= 3.8
• pip

Installation

Pip

pip install python-fx

Build from Source

Clone the this repo, change directory into the project and run

python setup.py install

Local Development

Clone the this repo, change directory into the project and run

pipenv install --dev

Quick Start

You can use Pyfx in two ways:

• A standalone CLI tool
• A python module which can be integrated in any python CLI application

For details, please check the hosted documentation.

CLI

Check Key Bindings section for default key bindings.
Pyfx comes with a CLI, use it

• To open a JSON file

   pyfx JSON_FILE
  

• To read JSON data from pipe

   cat JSON_FILE | pyfx
  

• To read JSON data from clipboard

   pyfx -x / --from-clipboard
  

Python Module

Check Key Bindings section for default key bindings.

Directly Attach Pyfx Simple TUI

Directly integrate Pyfx's TUI into your own project.

from pyfx import PyfxApp

# data is the JSON data to be rendered in the TUI
# only supports dict, list and primitive variable
PyfxApp(data=data).run()

Integrate with Your Own Urwid-based TUI

Integrate Pyfx native JSON widgets into your own urwid-based TUI.

from pyfx.view.json_lib import JSONListBox, JSONListWalker, NodeFactory, DEFAULT_NODE_IMPLS

# 1. create NodeFactory
node_factory = NodeFactory(DEFAULT_NODE_IMPLS)

# 2. add any custom display implementation
node_factory.register({
    clazz: json_node_impl
})

# 3. create top node from the data (only supports dict, list and primitive variable)
top_node = node_factory.create_root_node(data)

# 4. create JSONListBox from top node
listbox = JSONListBox(JSONListWalker(top_node))

# 5. use listbox in your own TUI

Configuration

Pyfx is configured using YAML. There are two ways to provide a configuration file:

• Pass directly through CLI option (-c | --config).
• Create a config file in predefined folders and Pyfx will load it with best effort and use the default config if none is find.
  The predefined folders are searched in following order, with the first exist one has high priority.
  1. ~/.config/pyfx/config.yml

For available configuration, see configuration.

Default Configuration

Theme

Alternative key bindings, see Theme Configuration.

Name	Description	Foreground Color
body	Pyfx body (JSON Browser)	terminal default
foot	Pyfx footer (Query Bar and Help Bar)	gray
focused	focused display	gray
Auto Complete PopUp
popup	autocomplete popup	black
popup_focused	focused display for autocomplete popup	white
JSON Browser
json_key	object key	blue
json_string	string type value	green
json_integer	integer type value	cyan
json_numeric	numeric type value	cyan
json_bool	boolean type value	yellow
json_null	null type value	red
json_focused	focused display for JSON	gray

Key Bindings

Alternative key bindings, see Key Bindings Configuration.

Key	Function
q	exit pyfx (except in Query Bar)
?	open help page (except in Query Bar)
JSON Browser
up	move cursor up one line
down	move cursor down one line
e	expand all
c	collapse all
enter	toggle expansion
.	enter query window (used to input JSONPath query)
Query Bar
enter	apply JSONPath query and switch to JSON Browser
esc	cancel query and restore to state before query
Autocomplete PopUp
up	move cursor up one line
down	move cursor down one line
enter	select option and complete the query
esc	close pop up
Help PopUp
up	move cursor up one line
down	move cursor down one line
esc	close the help popup

License

The code is under The MIT License.

Changelog

See the changelog for a history of notable changes to Pyfx.

How to Contribute

If you run into any issues, please let me know by creating a GitHub issue.