Commits on Oct 21, 2026

1. Add Image API support with uploadImage() …

   Uploads a JPG, PNG, or WebP image to POST /image as multipart/form-data
   and returns the decoded response, whose image_id can be passed to
   Google Lens and other engines that accept uploaded images. Mirrors
   upload_image in serpapi-ruby and serpapi-python:
   
   - accepts a file path or a stream; seekable streams are rewound first,
     as Ruby does, and uploaded from a temporary copy because cURL uploads
     by path and CURLStringFile needs PHP 8.1
   - sends the same parameters as any other request (api_key, source,
     default search parameters) as form fields, so the key stays out of
     the URL; per-call api_key and timeout work as for search()
   - sends only the file's base name; without one, cURL would send the
     full local path
   - errors raise SerpApiException with the same context as searches
   
   The persistent cURL handle now resets the method on every GET.
   Without CURLOPT_HTTPGET, a search after an upload went out as a
   multipart POST. Uploads also drop the Expect: 100-continue header:
   libcurl before 7.69 sends it with bodies over 1 KB, SerpApi does not
   answer it, and each upload stalled for a second.
   
   The live integration test uploads a 27 KB public domain thumbnail of
   the Mona Lisa from Wikimedia Commons and searches it with Google Lens.

   

   strzibny committed Oct 21, 2026
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