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Revert "Moved some headers out of fetch function"

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This reverts commit a410c0c044.
This commit is contained in:
dangered wolf 2022-08-18 16:50:26 -04:00
parent a410c0c044
commit 6b4ab57f17
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GPG key ID: 41E4D37680ED8B58
1 changed files with 34 additions and 39 deletions
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73
src/fetch.ts
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@ -1,41 +1,5 @@
import { Constants } from './constants';
const invalidateTokenCache = (event: FetchEvent, cache: Cache) => {
console.log('Invalidating token cache');
event && event.waitUntil(cache.delete(guestTokenRequestCacheDummy));
}
const tokenHeaders: { [header: string]: string } = {
Authorization: Constants.GUEST_BEARER_TOKEN,
...Constants.BASE_HEADERS
};
const guestTokenRequest = new Request(
`${Constants.TWITTER_API_ROOT}/1.1/guest/activate.json`,
{
method: 'POST',
headers: tokenHeaders,
cf: {
cacheEverything: true,
cacheTtl: Constants.GUEST_TOKEN_MAX_AGE
},
body: ''
}
);
/* A dummy version of the request only used for Cloudflare caching purposes.
The reason it exists at all is because Cloudflare won't cache POST requests. */
const guestTokenRequestCacheDummy = new Request(
`${Constants.TWITTER_API_ROOT}/1.1/guest/activate.json`,
{
method: 'GET',
cf: {
cacheEverything: true,
cacheTtl: Constants.GUEST_TOKEN_MAX_AGE
}
}
);
export const fetchUsingGuest = async (
status: string,
event: FetchEvent
@ -43,6 +7,37 @@ export const fetchUsingGuest = async (
let apiAttempts = 0;
let newTokenGenerated = false;
const tokenHeaders: { [header: string]: string } = {
Authorization: Constants.GUEST_BEARER_TOKEN,
...Constants.BASE_HEADERS
};
const guestTokenRequest = new Request(
`${Constants.TWITTER_API_ROOT}/1.1/guest/activate.json`,
{
method: 'POST',
headers: tokenHeaders,
cf: {
cacheEverything: true,
cacheTtl: Constants.GUEST_TOKEN_MAX_AGE
},
body: ''
}
);
/* A dummy version of the request only used for Cloudflare caching purposes.
The reason it exists at all is because Cloudflare won't cache POST requests. */
const guestTokenRequestCacheDummy = new Request(
`${Constants.TWITTER_API_ROOT}/1.1/guest/activate.json`,
{
method: 'GET',
cf: {
cacheEverything: true,
cacheTtl: Constants.GUEST_TOKEN_MAX_AGE
}
}
);
const cache = caches.default;
while (apiAttempts < 10) {
@ -80,7 +75,7 @@ export const fetchUsingGuest = async (
This can effectively mean virtually unlimited (read) access to Twitter's API,
which is very funny. */
activate = await fetch(guestTokenRequest.clone());
activate = await fetch(guestTokenRequest);
}
/* Let's grab that guest_token so we can use it */
@ -128,7 +123,7 @@ export const fetchUsingGuest = async (
/* We'll usually only hit this if we get an invalid response from Twitter.
It's uncommon, but it happens */
console.error('Unknown error while fetching conversation from API');
invalidateTokenCache(event, cache);
event && event.waitUntil(cache.delete(guestTokenRequestCacheDummy));
newTokenGenerated = true;
continue;
}
@ -140,7 +135,7 @@ export const fetchUsingGuest = async (
/* Running out of requests within our rate limit, let's purge the cache */
if (remainingRateLimit < 20) {
console.log(`Purging token on this edge due to low rate limit remaining`);
invalidateTokenCache(event, cache);
event && event.waitUntil(cache.delete(guestTokenRequestCacheDummy));
}
if (