feat(client): add retries to fetch (#382)

Author: felixgabler

src/runtime/plugins/supabase.client.ts

@@ -1,5 +1,6 @@
 import { createBrowserClient } from '@supabase/ssr'
 import type { Session } from '@supabase/supabase-js'
+import { fetchWithRetry } from '../utils/fetch-retry'
 import { defineNuxtPlugin, useRuntimeConfig, useSupabaseSession, useSupabaseUser } from '#imports'
 
 export default defineNuxtPlugin({
@@ -12,6 +13,10 @@ export default defineNuxtPlugin({
       ...clientOptions,
       cookieOptions,
       isSingleton: true,
+      global: {
+        fetch: fetchWithRetry,
+        ...clientOptions.global,
+      },
     })
 
     const currentSession = useSupabaseSession()

src/runtime/plugins/supabase.server.ts

@@ -1,5 +1,6 @@
 import { createServerClient, parseCookieHeader } from '@supabase/ssr'
 import { getHeader, setCookie } from 'h3'
+import { fetchWithRetry } from '../utils/fetch-retry'
 import { defineNuxtPlugin, useRequestEvent, useRuntimeConfig, useSupabaseSession, useSupabaseUser } from '#imports'
 import type { CookieOptions } from '#app'
 
@@ -24,6 +25,10 @@ export default defineNuxtPlugin({
         ) => cookies.forEach(({ name, value, options }) => setCookie(event, name, value, options)),
       },
       cookieOptions,
+      global: {
+        fetch: fetchWithRetry,
+        ...clientOptions.global,
+      },
     })
 
     // Initialize user and session states

src/runtime/server/services/serverSupabaseClient.ts

@@ -1,6 +1,7 @@
 import type { SupabaseClient } from '@supabase/supabase-js'
 import { createServerClient, parseCookieHeader, type CookieOptions } from '@supabase/ssr'
 import { getHeader, setCookie, type H3Event } from 'h3'
+import { fetchWithRetry } from '../../utils/fetch-retry'
 import { useRuntimeConfig } from '#imports'
 import type { Database } from '#build/types/supabase-database'
 
@@ -13,7 +14,7 @@ export const serverSupabaseClient = async <T = Database>(event: H3Event): Promis
         url,
         key,
         cookieOptions,
-        clientOptions: { auth = {} },
+        clientOptions: { auth = {}, global = {} },
       },
     } = useRuntimeConfig().public
 
@@ -30,6 +31,10 @@ export const serverSupabaseClient = async <T = Database>(event: H3Event): Promis
         ) => cookies.forEach(({ name, value, options }) => setCookie(event, name, value, options)),
       },
       cookieOptions,
+      global: {
+        fetch: fetchWithRetry,
+        ...global,
+      },
     })
   }
 

src/runtime/utils/fetch-retry.ts

@@ -0,0 +1,20 @@
+export async function fetchWithRetry(req: RequestInfo | URL, init?: RequestInit): Promise<Response> {
+  const retries = 3
+  for (let attempt = 1; attempt <= retries; attempt++) {
+    try {
+      return await fetch(req, init)
+    }
+    catch (error) {
+      // Don't retry if it's an abort
+      if (init?.signal?.aborted) {
+        throw error
+      }
+      if (attempt === retries) {
+        console.error(`Error fetching request ${req}`, error, init)
+        throw error
+      }
+      console.warn(`Retrying fetch attempt ${attempt + 1} for request: ${req}`)
+    }
+  }
+  throw new Error('Unreachable code')
+}