Maybe this

src/server/ably.ts

@@ -2,15 +2,6 @@ import Ably from "ably";
 import { env } from "~/env.mjs";
 import type { EventType } from "../utils/types";
 
-const globalForAbly = globalThis as unknown as {
-  ably: Ably.Types.RealtimePromise;
-};
-
-export const ably =
-  globalForAbly.ably || new Ably.Realtime.Promise(env.ABLY_PRIVATE_KEY);
-
-if (env.NODE_ENV !== "production") globalForAbly.ably = ably;
-
 export const publishToChannel = async (
   ablyInstance: Ably.Types.RealtimePromise,
   channel: string,

src/server/api/routers/room.ts

@@ -1,7 +1,5 @@
 import { z } from "zod";
 import { publishToChannel } from "~/server/ably";
-import Ably from "ably";
-
 import { createTRPCRouter, protectedProcedure } from "~/server/api/trpc";
 
 import { fetchCache, invalidateCache, setCache } from "~/server/redis";
@@ -17,8 +15,6 @@ export const roomRouter = createTRPCRouter({
     )
     .mutation(async ({ ctx, input }) => {
       if (ctx.session) {
-        const ably = new Ably.Realtime.Promise(env.ABLY_PRIVATE_KEY);
-
         const room = await ctx.prisma.room.create({
           data: {
             userId: ctx.session.user.id,
@@ -33,7 +29,7 @@ export const roomRouter = createTRPCRouter({
           await invalidateCache(`kv_roomlist_${ctx.session.user.id}`);
 
           await publishToChannel(
-            ably,
+            ctx.ably,
             `${ctx.session.user.id}`,
             "ROOM_LIST_UPDATE",
             "CREATE"
@@ -125,8 +121,6 @@ export const roomRouter = createTRPCRouter({
       })
     )
     .mutation(async ({ ctx, input }) => {
-      const ably = new Ably.Realtime.Promise(env.ABLY_PRIVATE_KEY);
-
       if (input.reset) {
         if (input.log) {
           const oldRoom = await ctx.prisma.room.findUnique({
@@ -209,7 +203,12 @@ export const roomRouter = createTRPCRouter({
       });
 
       if (newRoom) {
-        await publishToChannel(ably, `${newRoom.id}`, "ROOM_UPDATE", "UPDATE");
+        await publishToChannel(
+          ctx.ably,
+          `${newRoom.id}`,
+          "ROOM_UPDATE",
+          "UPDATE"
+        );
       }
 
       return !!newRoom;
@@ -219,8 +218,6 @@ export const roomRouter = createTRPCRouter({
   delete: protectedProcedure
     .input(z.object({ id: z.string() }))
     .mutation(async ({ ctx, input }) => {
-      const ably = new Ably.Realtime.Promise(env.ABLY_PRIVATE_KEY);
-
       const deletedRoom = await ctx.prisma.room.delete({
         where: {
           id: input.id,
@@ -233,14 +230,14 @@ export const roomRouter = createTRPCRouter({
         await invalidateCache(`kv_roomlist_${ctx.session.user.id}`);
 
         await publishToChannel(
-          ably,
+          ctx.ably,
           `${ctx.session.user.id}`,
           "ROOM_LIST_UPDATE",
           "DELETE"
         );
 
         await publishToChannel(
-          ably,
+          ctx.ably,
           `${deletedRoom.id}`,
           "ROOM_UPDATE",
           "DELETE"

src/server/api/routers/vote.ts

@@ -1,6 +1,5 @@
 import { z } from "zod";
 import { publishToChannel } from "~/server/ably";
-import Ably from "ably";
 
 import type { Room } from "@prisma/client";
 import { createTRPCRouter, protectedProcedure } from "~/server/api/trpc";
@@ -68,8 +67,6 @@ export const voteRouter = createTRPCRouter({
   set: protectedProcedure
     .input(z.object({ value: z.string(), roomId: z.string() }))
     .mutation(async ({ ctx, input }) => {
-      const ably = new Ably.Realtime.Promise(env.ABLY_PRIVATE_KEY);
-
       const vote = await ctx.prisma.vote.upsert({
         where: {
           userId_roomId: {
@@ -104,7 +101,12 @@ export const voteRouter = createTRPCRouter({
         await invalidateCache(`kv_votecount_admin`);
         await invalidateCache(`kv_votes_${input.roomId}`);
 
-        await publishToChannel(ably, `${vote.roomId}`, "VOTE_UPDATE", "UPDATE");
+        await publishToChannel(
+          ctx.ably,
+          `${vote.roomId}`,
+          "VOTE_UPDATE",
+          "UPDATE"
+        );
       }
 
       return !!vote;

src/server/api/trpc.ts

@@ -19,6 +19,7 @@ import { type Session } from "next-auth";
 
 import { getServerAuthSession } from "~/server/auth";
 import { prisma } from "~/server/db";
+import Ably from "ably";
 
 type CreateContextOptions = {
   session: Session | null;
@@ -37,6 +38,7 @@ type CreateContextOptions = {
 const createInnerTRPCContext = (opts: CreateContextOptions) => {
   return {
     session: opts.session,
+    ably: new Ably.Realtime.Promise(env.ABLY_PRIVATE_KEY),
     prisma,
   };
 };
@@ -65,6 +67,7 @@ export const createTRPCContext = async (opts: CreateNextContextOptions) => {
  */
 import { initTRPC, TRPCError } from "@trpc/server";
 import superjson from "superjson";
+import { env } from "~/env.mjs";
 
 const t = initTRPC.context<typeof createTRPCContext>().create({
   transformer: superjson,