@urql/exchange-request-policy (Exchange factory)

@urql/exchange-request-policy is an exchange for the urql GraphQL client that will automatically upgrade operation request-policies
on a time-to-live basis.

Quick Start Guide

First install @urql/exchange-request-policy alongside urql:

``sh
yarn add @urql/exchange-request-policy


or


npm install --save @urql/exchange-request-policy
`

Then add it to your client.

`js
import { createClient, cacheExchange, fetchExchange } from 'urql';
import { requestPolicyExchange } from '@urql/exchange-request-policy';

const client = createClient({
url: 'http://localhost:1234/graphql',
exchanges: [
requestPolicyExchange({
// The amount of time in ms that has to go by before upgrading, default is 5 minutes.
ttl: 60 * 1000, // 1 minute.
// An optional function that allows you to specify whether an operation should be upgraded.
shouldUpgrade: operation => operation.context.requestPolicy !== 'cache-only',
}),
cacheExchange,
fetchExchange,
],
});
`

Now when the exchange sees a cache-first operation that hasn't been seen in ttl amount of time it will upgrade
the requestPolicy to cache-and-network`.