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Limited JSON API for Google searches using Programmable Search Engine
Limited JSON API for Google searches using Programmable Search Engine#
I figured out how to use a JSON API to run a very limited Google search today in a legit, non-screen-scraper way.
Google offer a product called Programmable Search Engine, which used to be called Google Custom Search.
It’s intended for creating a search engine for your own site, by restricting results to specific domains - but when you create one you can opt to search the whole web instead.
You can then use their JSON API to run searches.
It’s quite limited:
- Maximum of 10 results per page, and you can only paginate up to 10 times so 100 results total
- 100 search queries per day for free, then $5 per 1000 queries up to 10,000 a day, then you have to switch to a separate product that only works for up to 10 domains.
But it works! And it’s pretty easy to get running.
First, create a new Programmable Search Engine from the dashboard. The create page is pretty straight-forward:
Now get an API key - I used the button in the middle of the API documentation:
You need the “Search engine ID” from the dashboard - mine was 84ec3c54dca9646ff.
And that’s it! You can combine the API key and search engine ID to run searches:
1https://www.googleapis.com/customsearch/v1?key=API-KEY2 &cx=84ec3c54dca9646ff3 &q=SEARCH-TERMIt seems to support a lot of the same search filters as Google. I tried using this, URL-encoded, and seemed to get the results I wanted:
1"powered by datasette" -site:github.com -site:simonwillison.net -site:datasette.io -site:pypi.orgThe results come back as JSON that looks like this (truncated after the first result):
1{2 "kind": "customsearch#search",3 "url": {4 "type": "application/json",5 "template": "https://www.googleapis.com/customsearch/v1?q={searchTerms}&num={count?}&start={startIndex?}&lr={language?}&safe={safe?}&cx={cx?}&sort={sort?}&filter={filter?}&gl={gl?}&cr={cr?}&googlehost={googleHost?}&c2coff={disableCnTwTranslation?}&hq={hq?}&hl={hl?}&siteSearch={siteSearch?}&siteSearchFilter={siteSearchFilter?}&exactTerms={exactTerms?}&excludeTerms={excludeTerms?}&linkSite={linkSite?}&orTerms={orTerms?}&relatedSite={relatedSite?}&dateRestrict={dateRestrict?}&lowRange={lowRange?}&highRange={highRange?}&searchType={searchType}&fileType={fileType?}&rights={rights?}&imgSize={imgSize?}&imgType={imgType?}&imgColorType={imgColorType?}&imgDominantColor={imgDominantColor?}&alt=json"6 },7 "queries": {8 "request": [9 {10 "title": "Google Custom Search - \"powered by datasette\" -site:github.com -site:simonwillison.net -site:datasette.io -site:pypi.org",11 "totalResults": "65200",12 "searchTerms": "\"powered by datasette\" -site:github.com -site:simonwillison.net -site:datasette.io -site:pypi.org",13 "count": 10,14 "startIndex": 1,15 "inputEncoding": "utf8",16 "outputEncoding": "utf8",17 "safe": "off",18 "cx": "84ec3c54dca9646ff"19 }20 ],21 "nextPage": [22 {23 "title": "Google Custom Search - \"powered by datasette\" -site:github.com -site:simonwillison.net -site:datasette.io -site:pypi.org",24 "totalResults": "65200",25 "searchTerms": "\"powered by datasette\" -site:github.com -site:simonwillison.net -site:datasette.io -site:pypi.org",26 "count": 10,27 "startIndex": 11,28 "inputEncoding": "utf8",29 "outputEncoding": "utf8",30 "safe": "off",31 "cx": "84ec3c54dca9646ff"32 }33 ]34 },35 "context": {36 "title": "The whole web"37 },38 "searchInformation": {39 "searchTime": 0.25516,40 "formattedSearchTime": "0.26",41 "totalResults": "65200",42 "formattedTotalResults": "65,200"43 },44 "items": [45 {46 "kind": "customsearch#result",47 "title": "hhs",48 "htmlTitle": "hhs",49 "link": "https://hhscovid.publicaccountability.org/hhs",50 "displayLink": "hhscovid.publicaccountability.org",51 "snippet": "Powered by Datasette · Queries took 5.536ms · Data source: U.S. Department of Health & Human Services · Home · Name Search · Dataset Search · Browse Datasets.",52 "htmlSnippet": "<b>Powered by Datasette</b> · Queries took 5.536ms · Data source: U.S. Department of Health & Human Services · Home · Name Search · Dataset Search · Browse Datasets.",53 "cacheId": "QbpCTHbMliYJ",54 "formattedUrl": "https://hhscovid.publicaccountability.org/hhs",55 "htmlFormattedUrl": "https://hhscovid.publicaccountability.org/hhs",56 "pagemap": {57 "metatags": [58 {59 "viewport": "width=device-width, initial-scale=1, shrink-to-fit=no"60 }61 ]62 }63 }As a bonus, you can pipe results into a SQLite database using sqlite-utils like this:
1curl 'https://www.googleapis.com/customsearch...' | \2 jq .items | sqlite-utils insert /tmp/search.db search - Limited JSON API for Google searches using Programmable Search Engine
https://mranv.pages.dev/posts/limited-json-api-for-google-searches-using-programmable-search-engine/