get all departments particular fileds

src/controllers/departmentController.js

@@ -124,6 +124,31 @@ exports.addDepartment = async (request, reply) => {
       throw boom.boomify(err);
     }
   };
+
+  
+exports.getAllDepartmentsParticularFields = async (req, reply) => {
+    try {
+      const departments = await Department.find().exec();
+  
+      // Grouping the data
+      const result = {
+        cities: [...new Set(departments.map((doc) => doc.city))],
+        zones: [...new Set(departments.map((doc) => doc.zone))],
+        pincodes: [...new Set(departments.map((doc) => doc.pincode))],
+      };
+  
+      // Sending the response
+      reply.send({
+        status_code: 200,
+        data: result,
+        count: departments.length,
+      });
+    } catch (err) {
+      console.error(err);
+      reply.send({ error: err.message });
+    }
+  };
+  
   
   exports.deletedepartmentInfo = async (req, reply) => {
     try {

src/routes/departmentRoute.js

@@ -76,6 +76,23 @@ module.exports = function (fastify, opts, next) {
         handler: departmentController.getalldepartmants,
       });
 
+       
+      fastify.get("/api/getalldepartmentsParticularFileds", {
+        schema: {
+          tags: ["Department"],
+          description: "This is for Get all Department particular fileds Data",
+          summary: "This is for to Get all Department particular fields Data",
+         
+          security: [
+            {
+              basicAuth: [],
+            },
+          ],
+        },
+        //preHandler: fastify.auth([fastify.authenticate]),
+        handler: departmentController.getAllDepartmentsParticularFields,
+      });
+
       fastify.delete("/api/deletedepartment/:departmentId", {
         schema: {
           description: "Delete a Department by departmentId",