conscious-sapphire•13mo ago

Cheerio not persisting cookies

Cheerio is not able to persist cookies that are set in the session. I have persistCookiesPerSession: true and I also verify that the cookie is being saved in the session in the requestHandler. But when i print out the request headers the cookie header is not present. The session in preNavigationHooks also does not contain the cookies

const crawler = new CheerioCrawler({
    minConcurrency: 1,
    maxConcurrency: 10,
    requestHandlerTimeoutSecs: 30,
    maxRequestRetries: 10,
    useSessionPool: true,
    persistCookiesPerSession: true,
    preNavigationHooks: [
        async ({ request, session }, gotOptions) => {
            gotOptions.useHeaderGenerator = true;
            gotOptions.headerGeneratorOptions = {
                browsers: [{ name: 'firefox', minVersion: 115, maxVersion: 115 }],
                devices: ['desktop'],
                operatingSystems: ['windows'],
                locales: ['en-US', 'en'],
            };
            console.log('START PRE HOOK');
            console.log(request.url);

            // THIS IS EMPTY ON SECOND REQUEST
            console.log(session?.getCookies(request.url));
            console.log(gotOptions.headers);
            console.log('END PRE HOOK');
        },
    ],
    requestHandler: async ({ response, request, session, log, addRequests }) => {
        const refresh = response.headers?.refresh;
        if (refresh && session) {
            console.log(response.request.options.headers);
            log.info(`Access queue detected, waiting for ${refresh} seconds...`);
            
            // Cookies are present here
            console.log(session.getCookies(request.url));
            await sleep((parseInt(refresh) - 1) * 1000);
            await addRequests([{ url: request.url, uniqueKey: new Date().toString() }]);
        }
    },
});

const crawler = new CheerioCrawler({
    minConcurrency: 1,
    maxConcurrency: 10,
    requestHandlerTimeoutSecs: 30,
    maxRequestRetries: 10,
    useSessionPool: true,
    persistCookiesPerSession: true,
    preNavigationHooks: [
        async ({ request, session }, gotOptions) => {
            gotOptions.useHeaderGenerator = true;
            gotOptions.headerGeneratorOptions = {
                browsers: [{ name: 'firefox', minVersion: 115, maxVersion: 115 }],
                devices: ['desktop'],
                operatingSystems: ['windows'],
                locales: ['en-US', 'en'],
            };
            console.log('START PRE HOOK');
            console.log(request.url);

            // THIS IS EMPTY ON SECOND REQUEST
            console.log(session?.getCookies(request.url));
            console.log(gotOptions.headers);
            console.log('END PRE HOOK');
        },
    ],
    requestHandler: async ({ response, request, session, log, addRequests }) => {
        const refresh = response.headers?.refresh;
        if (refresh && session) {
            console.log(response.request.options.headers);
            log.info(`Access queue detected, waiting for ${refresh} seconds...`);
            
            // Cookies are present here
            console.log(session.getCookies(request.url));
            await sleep((parseInt(refresh) - 1) * 1000);
            await addRequests([{ url: request.url, uniqueKey: new Date().toString() }]);
        }
    },
});

1 Reply

exotic-emerald•13mo ago

Hello @Tay, this is caused by the fact, that these two requests probably use a different session, due to session pool picking a random session from the pool.

Cheerio not persisting cookies

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