我正在使用该库(可通过 MELPA 获得)来尝试创建一个基本框架,以便在Emacs 的 Stack Exchange 模式request.el
上认真开始工作。我想要做的就是能够将解析的对象返回给调用函数,但我什至似乎无法建立连接。json-read
我知道要让我的函数返回对象,必须同步进行调用,这:sync t
就是它的用途。我考虑过使它成为一个异步调用,但考虑到它的用例,我认为这不会有好处。
起初,在我查看消息后,我想“也许我没有必要的二进制文件。” 我确实request.el
使用其文档附带的一些示例调用进行了测试,它们工作正常,所以就这样了。
我不知道出了什么问题。在处理网络的任何事情上,无论成功与否,我都没有太多经验,并且不完全理解我收到的错误消息。据我所知,API 的 443 端口给了我沉默的待遇,但我犹豫是否认为是这种情况;)
。
;; Works like a charm
(defun alist-to-json (alist)
"Converts the key-value pairs of `ALIST` into a JSON-friendly
string: \"key1=value1&key2=value2&\"."
(apply 'concat
(mapcar (lambda (kv)
(format "%s=%s&" (car kv)
(if (stringp (cdr kv))
(cdr kv)
(number-to-string (cdr kv)))))
alist)))
(defvar stack-api-root "https://api.stackexchange.com/2.1/")
(require 'json)
(require 'request)
(defun stack-api-request (call keys-alist)
"Makes the specified `CALL` to the Stack Exchange API with the
key-value pairs given `KEYS-ALIST`. For example,
(stack-api-request \"sites\" '((page . 2) (page_size . 25)))"
(let* ((base-call (concat stack-api-root call "?"))
(options (alist-to-json keys-alist)))
(request base-call
:params options
:parser 'json-read
:sync t)))
回溯
Debugger entered--Lisp error: (error "Could not create connection to api.stackexchange.com:443")
signal(error ("Could not create connection to api.stackexchange.com:443"))
error("Could not create connection to %s:%d" "api.stackexchange.com" 443)
url-http([cl-struct-url "https" nil nil "api.stackexchange.com" nil "/2.1/sites?&" nil nil t nil t] #[128 "\302\303\304p#\210\300\305\240\210\301p\240\207" [(nil) (nil) url-debug retrieval "Synchronous fetching done (%S)" t] 5 "\n\n(fn &rest IGNORED)"] (nil))
url-https([cl-struct-url "https" nil nil "api.stackexchange.com" nil "/2.1/sites?&" nil nil t nil t] #[128 "\302\303\304p#\210\300\305\240\210\301p\240\207" [(nil) (nil) url-debug retrieval "Synchronous fetching done (%S)" t] 5 "\n\n(fn &rest IGNORED)"] (nil))
url-retrieve-internal("https://api.stackexchange.com/2.1/sites?&" #[128 "\302\303\304p#\210\300\305\240\210\301p\240\207" [(nil) (nil) url-debug retrieval "Synchronous fetching done (%S)" t] 5 "\n\n(fn &rest IGNORED)"] (nil) nil nil)
url-retrieve("https://api.stackexchange.com/2.1/sites?&" #[128 "\302\303\304p#\210\300\305\240\210\301p\240\207" [(nil) (nil) url-debug retrieval "Synchronous fetching done (%S)" t] 5 "\n\n(fn &rest IGNORED)"])
url-retrieve-synchronously("https://api.stackexchange.com/2.1/sites?&")
request--url-retrieve-sync("https://api.stackexchange.com/2.1/sites?&" :params "page=2&page_size=25&" :parser json-read :sync t :error (closure (t) (&rest args) (apply (quote request-default-error-callback) (quote "https://api.stackexchange.com/2.1/sites?") args)) :url "https://api.stackexchange.com/2.1/sites?&" :response [cl-struct-request-response nil nil nil nil nil "https://api.stackexchange.com/2.1/sites?&" nil (:params "page=2&page_size=25&" :parser json-read :sync t :error (closure (t) (&rest args) (apply (quote request-default-error-callback) (quote "https://api.stackexchange.com/2.1/sites?") args)) :url "https://api.stackexchange.com/2.1/sites?&" :response #0) nil nil nil url-retrieve nil])
apply(request--url-retrieve-sync "https://api.stackexchange.com/2.1/sites?&" (:params "page=2&page_size=25&" :parser json-read :sync t :error (closure (t) (&rest args) (apply (quote request-default-error-callback) (quote "https://api.stackexchange.com/2.1/sites?") args)) :url "https://api.stackexchange.com/2.1/sites?&" :response [cl-struct-request-response nil nil nil nil nil "https://api.stackexchange.com/2.1/sites?&" nil #0 nil nil nil url-retrieve nil]))
request("https://api.stackexchange.com/2.1/sites?" :params "page=2&page_size=25&" :parser json-read :sync t)
(let* ((base-call (concat stack-api-root call "?")) (options (alist-to-json keys-alist))) (request base-call :params options :parser (quote json-read) :sync t))
stack-api-request("sites" ((page . 2) (page_size . 25)))
eval((stack-api-request "sites" (quote ((page . 2) (page_size . 25)))) nil)
eval-expression((stack-api-request "sites" (quote ((page . 2) (page_size . 25)))) nil)
call-interactively(eval-expression nil nil)
留言:
Contacting host: api.stackexchange.com:443
Opening TLS connection to `api.stackexchange.com'...
Opening TLS connection with `gnutls-cli --insecure -p 443 api.stackexchange.com'...failed
Opening TLS connection with `gnutls-cli --insecure -p 443 api.stackexchange.com --protocols ssl3'...failed
Opening TLS connection with `openssl s_client -connect api.stackexchange.com:443 -no_ssl2 -ign_eof'...failed
Opening TLS connection to `api.stackexchange.com'...failed
我检查以确保这不是 cURL 的问题。我使用的电话curl
是
curl api.stackexchange.com/2.1/sites --compressed
从外部查看request
存储库,request
也正在这样做。我不知道可能出了什么问题。