JSON layer

• Syntax highlighting
• Auto-completion
• Get the path to a JSON value with json-snatcher
• Navigate JSON hierarchy with json-nagivator
• Formatting with web-beautify or prettier

See web-beautify layer documentation.

See prettier layer documentation.

To choose a formatter, set the layer variable json-fmt-tool:

(json :variables json-fmt-tool 'web-beautify)

The formatter can be chosen on a per project basis using directory local variables (files named .dir-locals.el at the root of a project), an example to use the prettier formatter:

;;; Directory Local Variables
;;; For more information see (info "(emacs) Directory Variables")

((json-mode (json-fmt-tool . prettier)))

Note: you can easily add a directory local variable with SPC f v d.

To enable using the selected formatter on save, set the layer variable json-fmt-on-save:

(json :variables json-fmt-on-save t)

To enable LSP, install the lsp server via npm, then set the layer variable json-backend to 'lsp like shown below:

(json :variables json-backend 'lsp)

Alternatively you can also keep the variable on nil, then lsp will be used if lsp layer is loaded.

Installing the lsp server dependency can be done like this:

npm install -g vscode-langservers-extracted

SPC m = = will reformat the whole buffer or the active region. Use numerical prefix argument to specify a different indentation than js-indent-level. Use the universal prefix argument to print decoded strings, for instance:

{"name":"foo\"bar","nick":"foo \u00e4 bar","description":"<pre>\nbaz\n</pre>","home":"/home/foobar"}

Will be reformatted:

{
  "name": "foo\"bar",
  "nick": "foo ä bar",
  "description": "<pre>
  baz
  </pre>",
  "home": "/home/foobar"
}

SPC m T h toggle the display of a hierarchy for the whole JSON document or the active region. Use the universal prefix argument SPC u SPC m T h to create the hierarchy for the JSON after the point.