unify httpc usage

scripts/wx_upload_single.lua

@@ -1,7 +1,7 @@
 -- 指定模块引用目录，否则无法加载同目录下的其他文件
 --package.path = package.path .. ';/usr/local/opt/openresty/nginx/scripts/?.lua';
 package.path = package.path .. ';<SCRIPT_PATH>/?.lua';
-
+local http = require "resty.http"
 local cjson = require "cjson"
 local uuid = require "resty.jit-uuid"
 local upyun_upload = require("upyun_upload")
@@ -9,9 +9,11 @@ local get_wx_media = require("wx_download")
 
 local verify = require('jwt_verify')
 
+local httpc = http:new()
+
 local authHeader = ngx.req.get_headers().Authorization
 local sudoerToken = ngx.req.get_headers().HtySudoerToken
-verify(authHeader, sudoerToken)
+verify(httpc, authHeader, sudoerToken)
 
 local function run()
 
@@ -19,7 +21,7 @@ local function run()
     local req_body = cjson.decode(ngx.req.get_body_data())
     ngx.log(ngx.INFO, 'REQ_BODY -> ', ngx.req.get_body_data())
 
-    local downloaded_file = get_wx_media(req_body["media_id"]);
+    local downloaded_file = get_wx_media(httpc, req_body["media_id"]);
 
     upyun_upload.upload(downloaded_file, uuid.generate_v4() .. ".jpg")
 end