Minor changes

src/models/token.js

 tokenSchema.statics.generateAuthToken = async function(userArg) {
     const user = userArg
     const token = jwt.sign({ _id: user._id.toString() }, 'ovoJeSecret', { expiresIn: 60 * 20 })
-    const newToken = new Token({ token: token, userId: user._id })
-    await newToken.save()
-    user.tokens = user.tokens.concat({ token: newToken })
+
+    user.tokens = user.tokens.concat({ token })
     await user.save()
-    
-    console.log(newToken)
 
     return token
 }
 
 tokenSchema.statics.refreshAuthToken = async function(token, refreshOptions) {
-    const payload = jwt.verify(token, 'ovoJeSecret', refreshOptions.verify);
-    delete payload.iat;
-    delete payload.exp;
-    delete payload.nbf;
-    delete payload.jti;
-    const jwtSignOptions = Object.assign({ }, this.options, { jwtid: refreshOptions.jwtid });
-
-    return jwt.sign(payload, this.secretOrPrivateKey, jwtSignOptions);
+    const payload = jwt.verify(token, 'ovoJeSecret', refreshOptions.verify)
+    delete payload.iat
+    delete payload.exp
+    delete payload.nbf
+    delete payload.jti
+    const jwtSignOptions = Object.assign({ }, this.options, { jwtid: refreshOptions.jwtid })
+
+    return jwt.sign(payload, this.secretOrPrivateKey, jwtSignOptions)
 }
 
 const Token = mongoose.model('Token', tokenSchema)