Tutorials, industry analysis, and best practices for ecommerce data extraction, API integration, and competitive intelligence.
![Terminal running a Python script that compares an Amazon product's mainImage and gallery images[0] and flags a different picture or a smaller stored file](https://sellermagnet-api.com/static/img/blog/amazon-product-main-image-vs-gallery-api-hero.jpg?v=7b4ed37530)
productInfo.mainImage and productInfo.images[0] look like they should be the same picture. They come from two different parts of the Amazon page, can show a different image entirely, and mainImage can be a smaller stored file even when it is the same picture. A tested Python check flags both cases before a catalogue sync ships the wrong hero image.
Every Amazon product image URL carries its size: ._SL500_ scales the longest side to 500 px, no segment returns the full stored file and _AC_ trims the white margin. We tested the rules on Amazon's image CDN and wrote a Python script that resizes a whole gallery from one lookup per ASIN, without promising sizes the files do not have.
Get an Amazon product's video URLs from one API call and read them correctly: productInfo.videos returns up to two HLS playlists (.m3u8), not MP4 links, so a plain download saves a text manifest instead of a video. Covers detecting how many videos a listing has and turning the playlist into an MP4 with ffmpeg.
Get every gallery image of an Amazon product in its highest resolution with one lookup request, download them with Python, resize them through the image URL itself, and fetch product videos. Plus a quick media audit for your own listings and what you may do with the images.
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