Scrape Amazon product listings into a spreadsheet

flowchart TD trig(("you provide a list of urls")):::human s0[["fetch batch of pages"]]:::mi s1["extract product data"]:::task s2["append results to sheet"]:::task trig --> s0 s0 --> s1 s1 --> s2 lp{"until all urls processed"}:::gate s2 --> lp lp -. "move to next batch of urls" .-> s0 lp -->|"finished"| out out[/"structured product data in sheet"/]:::out pay{{"saves hours of manual price tracking"}}:::pay out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff