fix json validation

api/src/api/v2.js

@@ -5,10 +5,10 @@ const config = require('../config');
 const runtime = require('../runtime');
 const { Job } = require('../job');
 const package = require('../package')
-const logger = require('logplease').create('api/v1');
+const logger = require('logplease').create('api/v2');
 
 router.use((req, res, next) => {
-    if (!req.body) {
+    if (!req.body || req.body === '') {
         return next();
     }
 

cli/index.js

@@ -4,7 +4,10 @@ const axios = require('axios').default;
 
 const axios_instance = argv => {
     argv.axios = axios.create({
-        baseURL: argv['piston-url']
+        baseURL: argv['piston-url'],
+        headers: {
+            'Content-Type': 'application/json'
+        }
     });
 
     return argv;