jwt.js

// TESTING
            const token = localStorage.getItem('token') ?? null
            
            if (token != null) {
              // [START] JWT_DECODE
              // refactore to one function e.g decodeJwt
              let base64Url = token.split('.')[1];
              let base64 = base64Url.replace('-', '+').replace('_', '/');
              let decodedData = JSON.parse(Buffer.from(base64, 'base64').toString('binary'));
              // [END] JWT_DECODE
              
              // [START] COMPARE EXPIRED TIME
              const now = new Date()
              const exp = new Date(decodedData.exp)

              console.log(`from jwt: ${exp}`)
              console.log(`current time: ${now}`)

              if (exp >= now) {
                // if token expired redirect to
                console.log("token is expired")
              }
              // [END] COMPARE EXPIRED TIME
              
              console.log("next")
            }  
            // TESTING