JSON Lines Viewer

Terminal-UI to view JSON line files (e.g. application logs) or Zip files containing such files

The main use case is to support the analysis of comprehensive application logs in 'JSON line' format.

Install

Rust developer way (compile on machine):

• Install Rust => see https://www.rust-lang.org/tools/install
• cargo +nightly install json-lines-viewer

User way:

Download precompiled binary for your platform from GitHub.

Usage

JSON Lines Viewer – Terminal-UI to view JSON line files (e.g. application logs) or Zip files containing such files

Usage: json-lines-viewer [OPTIONS] [FILES]...

Arguments:
  [FILES]...
          JSON line input files - `.json` or `.zip` files(s) containing `.json` files

Options:
  -f, --field-order <FIELD_ORDER>
          fields displayed in-front; separated by comma

  -s, --suppressed-fields <SUPPRESSED_FIELDS>
          suppressed fields; separated by comma

  -h, --help
          Print help (see a summary with '-h')

  -V, --version
          Print version

Program Navigation:
  * Use cursor keys and page keys to scroll on a screen
  * `Enter` opens a detail screen for the selected line; `Esc` goes back to the parent screen (also exits program on main screen)
  * Use `Ctrl-f` to open a Find dialog; `Esc` leaves the Find dialog; `down/up` jumps to the next/previous finding; a match/miss is indicated by green/red brackets
  * Use `Ctrl-s` to save current settings. Actual settings are always coming from commandline options and the config file if it exists

Example

json-lines-viewer --field-order @timestamp,level,application_id,message,application_version,host_ipv4 logs-export-xxxxx.zip