feat: add metrics

server/routers/contentstack/hotelPage/query.ts

@@ -1,3 +1,5 @@
+import { metrics } from "@opentelemetry/api"
+
 import { GetHotelPage } from "@/lib/graphql/Query/HotelPage.graphql"
 import { request } from "@/lib/graphql/request"
 import { notFound } from "@/server/errors/trpc"
@@ -5,9 +7,22 @@ import { contentstackBaseProcedure, router } from "@/server/trpc"
 
 import { HotelPage, HotelPageDataRaw, validateHotelPageSchema } from "./output"
 
+// OpenTelemetry metrics
+const meter = metrics.getMeter("trpc.contentstack.hotelPage")
+const getHotelPageCounter = meter.createCounter(
+  "trpc.contentstack.hotelPage.get"
+)
+const getHotelPageSuccessCounter = meter.createCounter(
+  "trpc.contentstack.hotelPage.get-success"
+)
+const getHotelPageFailCounter = meter.createCounter(
+  "trpc.contentstack.hotelPage.get-fail"
+)
+
 export const hotelPageQueryRouter = router({
   get: contentstackBaseProcedure.query(async ({ ctx }) => {
     const { lang, uid } = ctx
+    getHotelPageCounter.add(1, { lang, uid: `${uid}` })
     console.info(
       "contentstack.hotelPage start",
       JSON.stringify({
@@ -20,6 +35,12 @@ export const hotelPageQueryRouter = router({
     })
     if (!response.data) {
       const notFoundError = notFound(response)
+      getHotelPageFailCounter.add(1, {
+        lang,
+        uid: `${uid}`,
+        error_type: "not_found",
+        error: JSON.stringify({ code: notFoundError.code }),
+      })
       console.error(
         "contentstack.hotelPage not found error",
         JSON.stringify({
@@ -33,6 +54,12 @@ export const hotelPageQueryRouter = router({
     const validatedHotelPage = validateHotelPageSchema.safeParse(response.data)
 
     if (!validatedHotelPage.success) {
+      getHotelPageFailCounter.add(1, {
+        lang,
+        uid: `${uid}`,
+        error_type: "validation_error",
+        error: JSON.stringify(validatedHotelPage.error),
+      })
       console.error(
         "contentstack.hotelPage validation error",
         JSON.stringify({
@@ -46,6 +73,7 @@ export const hotelPageQueryRouter = router({
     const hotelPage = {
       ...validatedHotelPage.data.hotel_page,
     } as HotelPage
+    getHotelPageSuccessCounter.add(1, { lang, uid: `${uid}` })
     console.info(
       "contentstack.hotelPage success",
       JSON.stringify({