Fix api/challenge/list to use parameter instead of query string

@@ -20,9 +20,9 @@
     "goalPerSession":Number
 }
 ```
-1. GET /api/challenge/list?status  
+1. GET /api/challenge/list/:status  
 - 챌린지 목록 조회
-- input(query)
+- input(parameter)
 ```
 status=(one of ["all","enrolled","progress","end"])
 ```

@@ -129,12 +129,12 @@ exports.addChallenge = async (ctx) => {
 };
 
 
-/* GET /api/challenge/list?status
-query string status can be in ['all','enrolled','progress','end']
+/* GET /api/challenge/list/:status
+parameter status can be in ['all','enrolled','progress','end']
 */
 exports.list = async (ctx) => {
   try{
-    const status = ctx.query.status;
+    const status = ctx.params.status;
     if (status!=='all'){
       const challenges = await Challenge.find({status:status}).select('-_id');
       ctx.body = challenges;

@@ -4,7 +4,7 @@ const challengeCtrl = require('./challege.ctrl');
 
 challenge.post("/getchallenge",challengeCtrl.getChallenge);
 challenge.post("/addchallenge",challengeCtrl.addChallenge);
-challenge.get("/list",challengeCtrl.list);
+challenge.get("/list/:status",challengeCtrl.list);
 challenge.post("/participate",challengeCtrl.participate);
 
 module.exports = challenge;
\ No newline at end of file