code refactoring

backend/apis/nodejs/src/utils/jwt_utils.js

@@ -0,0 +1,37 @@
+const jwt = require('jsonwebtoken');
+
+function generateToken(person_id) {
+    // The payload the JWT will carry within itself
+    const payload = {
+      person_id: person_id
+    };
+  
+    const token = jwt.sign(payload, process.env.JWT_SECRET_KEY, { 
+      expiresIn: '8h' 
+    });
+    return token;
+  }
+  
+  // Middlware
+  function verifyToken(req, res, next) {
+    const token = req.headers.authorization;
+  
+    if (!token) {
+      return res.status(401).send({error : 'No token provided'});
+    }
+  
+    jwt.verify(token, process.env.JWT_SECRET_KEY, (err, decoded) => {
+      if (err) {
+        return res.status(401).send({error : 'Failed to authenticate token'});
+      }
+  
+      // If the token is valid, store the decoded data in the request object
+      req.jwt = decoded;
+      next();
+    });
+  }
+
+  module.exports = {
+    generateToken,
+    verifyToken
+};

backend/apis/nodejs/src/utils/validation.js

@@ -0,0 +1,25 @@
+/**
+ * Checks whether an e-mail is in a valid format
+ * @param {*} email email to validate 
+ * @returns true or false
+ */
+function validateEmail(email) {
+    const regex = /^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,}$/;
+    return regex.test(email);
+}
+  
+/**
+ * Checks whether a date is in a correct Postgres
+ * format (YYYY-MM-DD)
+ * @param {*} dateString the date to validate 
+ * @returns true or false
+ */
+function isPostgresDateFormatValid(dateString) {
+    const regex = /^\d{4}-\d{2}-\d{2}$/;
+    return regex.test(dateString);
+}
+
+module.exports = {
+    validateEmail,
+    isPostgresDateFormatValid
+};