GNU-devel ELPA - plz-see


Interactive HTTP client
plz-see- (.sig), 2024-Mar-31, 30.0 KiB
Augusto Stoffel <>
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To install this package from Emacs, use package-install or list-packages.

Full description

plz-see is an interactive HTTP client for Emacs based on the plz library. It is interactive in the sense that request responses are pretty-printed in a pop-up buffer. It can be used to explore and test web APIs or to debug packages that use plz.

The main function provided by the package is unsurprisingly named plz-see, which has the essentially the same API as plz. See the docstring for details on the differences.

Additionally, the following variables (which become buffer-local when set) are provided for convenience:

  • plz-see-base-url: Prefix added to the all “relative” URLs passed to plz-see. Paradoxically, a URL in considered relative if it starts with /
  • plz-see-base-headers: Alist of headers added to all requests. Entries of this list can be overridden using the HEADERS argument of plz-see.

For further customization options, see M-x customize-group plz-see RET.

1. Examples

Make a GET request:

(plz-see 'get "")

Send some data through a POST request:

(plz-see 'post "" :body "Hello World!")
(plz-see 'post "" :body (current-buffer))
(plz-see 'post "" :body '(file "./"))

Set a base URL to shorten plz-see calls in a given buffer:

(setq-local plz-see-base-url "")
(plz-see 'get "/image/jpeg")
(plz-see 'get "/status/404")

Authenticate with username and password, read a bearer token from the server response, and store it in the default headers for future use.

  (setq-local plz-see-base-url "http://localhost:8080")
  (setq-local user "" pass "1234"))

(plz-see 'post "/login"
	 :headers '(("Content-Type" . "application/x-www-form-urlencoded"))
	 :body (format "username=%s&password=%s"
		       (url-hexify-string user)
		       (url-hexify-string pass))
	 :as 'json-read
	 :then (let ((buffer (current-buffer)))
		 (lambda (r)
		   (with-current-buffer buffer
		     (let ((token (alist-get 'access_token r)))
		       (setq-local plz-see-base-headers
				   `(("Authorization" . ,(concat "Bearer " token)))))))))

(plz-see 'get "/authenticated")  ; Yay!

2. Alternatives

There are several alternatives to this package, such as restclient and verb. They are certainly more fully featured than plz-see and arguably have a more user-friendly notation.

plz-see is geared towards those who prefer writing Elisp. It can also be called from Eshell or IELM.