[nongnu] elpa/graphql-mode fb84a08434 069/122: Make the dependency on request optional

[ELPA Syncer]

branch: elpa/graphql-mode
commit fb84a08434a3a4fd8a0c2914bdd92f35d29bef22
Author: Jonas Bernoulli <jonas@bernoul.li>
Commit: Jonas Bernoulli <jonas@bernoul.li>

    Make the dependency on request optional
    
    The functionality for making a request is not directly related to the
    major-mode.  Users should be able to use the major-mode without having
    to install `request'.
---
 graphql-mode.el | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/graphql-mode.el b/graphql-mode.el
index b82c7248b2..38b72275b5 100644
--- a/graphql-mode.el
+++ b/graphql-mode.el
@@ -4,7 +4,7 @@
 
 ;; Author: David Vazquez Pua <davazp@gmail.com>
 ;; Keywords: languages
-;; Package-Requires: ((emacs "24.3") (request "20170131.1747"))
+;; Package-Requires: ((emacs "24.3"))
 
 ;; This program is free software; you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
@@ -40,7 +40,6 @@
 (require 'json)
 (require 'url)
 (require 'cl-lib)
-(require 'request)
 
 ;;; User Customizations:
 
@@ -89,6 +88,9 @@ of the variables used in the query."
   (with-temp-buffer
     (graphql-post-request graphql-url query operation variables)))
 
+(declare-function request "request")
+(declare-function request-response-data "request")
+
 (defun graphql-post-request (url query &optional operation variables)
   "Make post request to graphql server with url and body.
 
@@ -96,6 +98,9 @@ URL hostname, path, search parameters, such as operationName 
and variables
 QUERY query definition(s) of query, mutation, and/or subscription
 OPERATION name of the operation if multiple definition is given in QUERY
 VARIABLES list of variables for query operation"
+  (or (require 'request nil t)
+      (error "graphql-post-request needs the request package.  \
+Please install it and try again."))
   (let* ((body (graphql-encode-json query operation variables))
          (response (request
                    url