feat(utils): add discoverValidSitemaps utility#3339
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barjin
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lgtm @foxt451 , thank you!
I'll let @janbuchar have a second look as the original author of this, but if it's a direct port from WCC, I think we can merge safely.
I have just these nits:
| it('extracts sitemap from robots.txt', async () => { | ||
| nock('http://sitemap-discovery.com') | ||
| .get('/robots.txt') | ||
| .reply(200, 'Sitemap: http://sitemap-discovery.com/sitemap.xml') |
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Can we change this so the robots.txt-referenced sitemap is not the well-known /sitemap.xml? This example passes even if robots.txt is missing (see test below).
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| /** | ||
| * Given a list of URLs, discover related sitemap files for these domains by checking the `robots.txt` file, | ||
| * the default `sitemap.xml` file and the URLs themselves. |
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nit: this doesn't mention sitemap.txt
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Related to https://github.com/apify/apify-sdk-js/issues/486. I'm [developing generic sitemap scraper](apify/actor-scraper#205) and it's going to share a big utility function (main chunk of logic) with wcc - `discoverValidSitemaps`. I've asked @barjin if I could factor it out and he told this util could fit into crawlee. It's mainly copied from wcc, but to keep the dependencies unchanged, it's using got-scraping to check for url existence instead of impit (I think it doesn't matter for sitemaps), and `urlExists` is inlined (until we don't add http client to these utils in v4 as @barjin told me). It's also turned into an async generator. Let me know if you see a better place for this util.
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Rebases #3339 and #3370 on top of `v4` and adds `HttpClient` support for discoverValidSitemaps. Related to the discussion under apify/actor-scraper#214 --------- Co-authored-by: Sviatozar Petrenko <svpetrenko123@gmail.com>
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Rebases #3339 and #3370 on top of `v4` and adds `HttpClient` support for discoverValidSitemaps. Related to the discussion under apify/actor-scraper#214 --------- Co-authored-by: Sviatozar Petrenko <svpetrenko123@gmail.com>
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Rebases #3339 and #3370 on top of `v4` and adds `HttpClient` support for discoverValidSitemaps. Related to the discussion under apify/actor-scraper#214 --------- Co-authored-by: Sviatozar Petrenko <svpetrenko123@gmail.com>
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Related to apify/actor-scraper#220. I'm developing generic sitemap scraper and it's going to share a big utility function (main chunk of logic) with wcc -
discoverValidSitemaps. I've asked @barjin if I could factor it out and he told this util could fit into crawlee. It's mainly copied from wcc, but to keep the dependencies unchanged, it's using got-scraping to check for url existence instead of impit (I think it doesn't matter for sitemaps), andurlExistsis inlined (until we don't add http client to these utils in v4 as @barjin told me). It's also turned into an async generator. Let me know if you see a better place for this util.