2021-12-13 18:12:57 -03:00

82 lines
2.3 KiB
JavaScript

/* eslint-disable @typescript-eslint/no-var-requires */
const Axios = require('axios');
const { useCache } = require('axios-cache-interceptor');
async function main() {
const axios = Axios.create({
baseUrl: 'https://api.github.com'
});
/**
* The same instance of the previous axios, but has custom Typescript types to better intellisense
*
* @example
*
* ```js
* axios === axiosWithCache;
* ```
*/
const axiosWithCache = useCache(axios, {
ttl: 99999,
// Parse the Cache-Control header to determine the cache strategy
interpretHeader: true
});
const fetchedResponse = await axiosWithCache.get(
'https://registry.npmjs.org//axios-cache-interceptor'
);
// This won't made a network request, because the response is already cached
const cachedResponse = await axiosWithCache.get(
'https://registry.npmjs.org//axios-cache-interceptor'
);
console.log('First request was cached?');
console.log(fetchedResponse.cached, '\n');
console.log('Second request was cached?');
console.log(cachedResponse.cached, '\n');
console.log('The interpretHeader option used a different strategy', '\n');
console.log('See the received Cache-Control header');
console.log(fetchedResponse.headers['cache-control'], '\n');
console.log('And also the received Age header');
console.log(fetchedResponse.headers['age'], '\n');
const cacheInformation = await axiosWithCache.storage.get(fetchedResponse.id);
console.log(
'As you can see, the TTL used was the maxAge cache directive minus the Age header',
'\n'
);
console.log('See the time to live in the cache: ');
console.log(cacheInformation.ttl, '\n');
console.log(
"If you disable the interpretHeader option you'll see that the TTL will be the default (99999)\n"
);
// Remove the old cache by brute force
await axiosWithCache.storage.remove(fetchedResponse.id);
const refetchedResponse = await axiosWithCache.get(
'https://registry.npmjs.org//axios-cache-interceptor',
{
cache: {
// This time with interpretHeader disabled
interpretHeader: false
}
}
);
const refetchedInformation = await axiosWithCache.storage.get(refetchedResponse.id);
console.log('Third request TTL:');
console.log(refetchedInformation.ttl);
}
main();