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81 lines
3.3 KiB
Markdown
81 lines
3.3 KiB
Markdown
# 懂车帝 Dongchedi
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**Mode**: 🌐 Public · **Domain**: `dongchedi.com`
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No login, no cookies, no signature. Every command does a plain HTTP GET of a
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server-rendered page and parses the `__NEXT_DATA__` JSON embedded in the HTML,
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so it works out of the box.
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## Commands
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| Command | Description |
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|---------|-------------|
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| `opencli dongchedi search <keyword>` | Search car series by keyword → series + 指导价/经销商价 |
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| `opencli dongchedi series <series_id>` | Series overview: brand, prices, 懂车分, sales rank, trim count |
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| `opencli dongchedi models <series_id>` | Trims (款型) with guide / dealer / owner prices |
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| `opencli dongchedi specs <series_id>` | Config overview: dimensions, powertrain, drivetrain, airbags |
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| `opencli dongchedi score <series_id>` | 懂车分 rating — 8 axes vs same-class average |
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| `opencli dongchedi koubei <series_id>` | Owner reviews (口碑): rating, trim bought, likes, full text |
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`series`, `models`, `specs`, `score`, and `koubei` all take a **series_id** —
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get one from `search` (the `series_id` column) or paste a
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`https://www.dongchedi.com/auto/series/<id>` URL.
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## Usage Examples
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```bash
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# Find a car series
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opencli dongchedi search "宝马X5" --limit 5
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opencli dongchedi search "汉兰达"
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# One series at a glance (prices + 懂车分 + ranks)
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opencli dongchedi series 5273
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# Trims and their prices
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opencli dongchedi models 5273
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opencli dongchedi models 5273 --status offline # discontinued trims
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# Key configuration overview
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opencli dongchedi specs 5273
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# Rating breakdown vs same-class average
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opencli dongchedi score 5273
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# Owner reviews (full body in the content column)
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opencli dongchedi koubei 5273 --limit 10
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# JSON output
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opencli dongchedi search "汉兰达" -f json
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```
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## Output Columns
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| Command | Columns |
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|---------|---------|
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| `search` | `rank, series_id, name, brand, official_price, dealer_price, pictures, url` |
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| `series` | `field, value` (series_id, name, brand, sub_brand, official_price, dealer_price, used_price, score, review_count, sale_rank, score_rank, models, url) |
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| `models` | `car_id, name, year, official_price, dealer_price, owner_price` |
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| `specs` | `field, value` (dimensions, wheelbase, power, engine, gearbox, energy, acceleration, drivetrain, suspension, airbags) |
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| `score` | `dimension, score, same_level_avg` |
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| `koubei` | `rank, user, car, score, likes, comments, content, url` |
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Scores are rescaled to a 0–5 float (Dongchedi stores them as x100 ints; 422 → 4.22).
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## Notes & Limits
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- **Why SSR, not the JSON API:** Dongchedi's `/motor/...` XHR endpoints are
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ByteDance-signature gated (`a_bogus` / `X-Bogus`) and 404 without a valid
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signature. The SSR pages expose the same data unsigned, so this adapter reads
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those instead — no signature replication, no breakage when the signing scheme
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rotates.
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- **`specs` is the overview, not the full parameter sheet.** The complete
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per-trim parameter table lives behind a signed XHR; rather than fabricate it,
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`specs` returns the unsigned SSR overview (dimensions, powertrain, drivetrain,
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suspension, airbags). For per-trim names/prices use `models`.
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- **`koubei` is a single SSR page** (up to ~15 reviews). Deep pagination uses the
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signed API and is intentionally not implemented.
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## Prerequisites
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None — public site, no authentication required.
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