Which request policy should I use with @urql/exchange-persisted?

[predaytor]

I have Varnish setup with 10 minutes for Cache-Control (using https://github.com/wp-graphql/wp-graphql-smart-cache`). Should I use the 'network-only' request policy instead of the default 'cache-first'? Does cacheExchange have any in-memory TTL?

import { cacheExchange, createClient, fetchExchange, ssrExchange } from '@urql/core';
import { persistedExchange } from '@urql/exchange-persisted';

export const client = createClient({
	url: import.meta.env.WORDPRESS_API_URL,
	exchanges: [
		cacheExchange,
		ssrExchange({
			isClient: !import.meta.env.SSR,
		}),
		persistedExchange({
			preferGetForPersistedQueries: true,
		}),
		fetchExchange,
	],
	requestPolicy: 'network-only',
});

[predaytor]

up

[soleo]

@predaytor I was running into issues with caching combined with automatic persisted queries #3417

My recommendation for you is to remove both cacheExchange and ssrExchange to see if it would work correctly with your setup.

import { cacheExchange, createClient, fetchExchange, ssrExchange } from '@urql/core';
import { persistedExchange } from '@urql/exchange-persisted';

export const client = createClient({
	url: import.meta.env.WORDPRESS_API_URL,
	exchanges: [
		persistedExchange({
			preferGetForPersistedQueries: true,
		}),
		fetchExchange,
	],
});

[predaytor]

thx for reply. I actually have no issues with automatic persisted queries so far. I kept the current configuration with a network-only request policy to rely only on the HTTP layer, bypassing Urql's internal caching.

[JoviDeCroock]

We have no TTL no we only work with automatic invalidation through mutations