v1.6: Platform Gateway — Amazon/JD/Taobao/PDD/TikTok 5平台API集成 + start_provision_v2.sh

2026-06-05 04:30:28 +00:00
parent 351c9b82fb
commit 989e21d1f6
19 changed files with 1760 additions and 15 deletions
@@ -0,0 +1,151 @@
+# -*- coding: utf-8 -*-
+"""Amazon PA-API 5 (sync wrapper → async).  Stub with real shape.
+
+For now this is a *placeholder* that returns ``UnifiedResult(status="error")``
+when called without a working implementation.  To switch on, paste in the
+real PA-API call here (see TODO).  The shape of the function is stable so
+swap-in is one line.
+"""
+
+from __future__ import annotations
+
+import logging
+from typing import Any
+
+import httpx
+
+from .base import UnifiedResult
+
+log = logging.getLogger("chathub.gateway.amazon")
+
+PAAPI_MARKETPLACES = {
+    "us": ("https://api.amazon.com",          "www.amazon.com"),
+    "jp": ("https://api.amazon.co.jp",       "www.amazon.co.jp"),
+    "uk": ("https://api.amazon.co.uk",       "www.amazon.co.uk"),
+    "de": ("https://api.amazon.de",          "www.amazon.de"),
+    "fr": ("https://api.amazon.fr",          "www.amazon.fr"),
+    "it": ("https://api.amazon.it",          "www.amazon.it"),
+    "es": ("https://api.amazon.es",          "www.amazon.es"),
+    "ca": ("https://api.amazon.ca",          "www.amazon.ca"),
+    "in": ("https://api.amazon.in",          "www.amazon.in"),
+    "br": ("https://api.amazon.com.br",      "www.amazon.com.br"),
+    "mx": ("https://api.amazon.com.mx",      "www.amazon.com.mx"),
+    "au": ("https://api.amazon.com.au",      "www.amazon.com.au"),
+    "sg": ("https://api.amazon.sg",          "www.amazon.sg"),
+}
+
+
+async def fetch(creds: dict, query: dict) -> UnifiedResult:
+    """Fetch a single ASIN or a search keyword.
+
+    query shape:
+        {"asin": "B08N5WRWNW"}  -> GetItems
+        {"keyword": "iphone 15", "marketplace": "us"}  -> SearchItems
+
+    creds shape:
+        {"access_token": "...", "marketplace": "us", "partner_tag": "..."}
+    """
+    asin = query.get("asin")
+    keyword = query.get("keyword")
+    marketplace = query.get("marketplace") or creds.get("marketplace", "us")
+    mp = PAAPI_MARKETPLACES.get(marketplace)
+    if not mp:
+        return UnifiedResult(
+            status="error",
+            error=f"unsupported marketplace: {marketplace}",
+            channel="amazon",
+        )
+    host, marketplace_domain = mp
+
+    try:
+        async with httpx.AsyncClient(timeout=8.0) as client:
+            if asin:
+                # GetItems
+                r = await client.post(
+                    f"{host}/paapi5/getitems",
+                    json={
+                        "ItemIds": [asin],
+                        "PartnerTag": creds.get("partner_tag", ""),
+                        "PartnerType": "Associates",
+                        "Marketplace": marketplace_domain,
+                        "Resources": [
+                            "ItemInfo.Title",
+                            "Offers.Listings.Price",
+                            "Offers.Listings.Availability",
+                            "DetailPageURL",
+                        ],
+                    },
+                    headers={
+                        "Authorization": f"Bearer {creds['access_token']}",
+                        "Content-Type": "application/json",
+                    },
+                )
+            elif keyword:
+                r = await client.post(
+                    f"{host}/paapi5/searchitems",
+                    json={
+                        "Keywords": keyword,
+                        "PartnerTag": creds.get("partner_tag", ""),
+                        "PartnerType": "Associates",
+                        "Marketplace": marketplace_domain,
+                        "ItemCount": 3,
+                        "Resources": [
+                            "ItemInfo.Title",
+                            "Offers.Listings.Price",
+                            "Offers.Listings.Availability",
+                            "DetailPageURL",
+                        ],
+                    },
+                    headers={
+                        "Authorization": f"Bearer {creds['access_token']}",
+                        "Content-Type": "application/json",
+                    },
+                )
+            else:
+                return UnifiedResult(
+                    status="error", error="missing asin or keyword", channel="amazon"
+                )
+
+            r.raise_for_status()
+            items = r.json().get("ItemsResult", {}).get("Items", [])
+            if not items:
+                return UnifiedResult(
+                    status="error", error="no items", channel="amazon"
+                )
+            first = items[0]
+            price = (
+                first.get("Offers", {})
+                .get("Listings", [{}])[0]
+                .get("Price", {})
+                .get("DisplayAmount")
+            )
+            return UnifiedResult(
+                status="success",
+                data={
+                    "title": first.get("ItemInfo", {}).get("Title", {}).get("DisplayValue"),
+                    "price": price,
+                    "currency": "",
+                    "url": first.get("DetailPageURL"),
+                    "in_stock": (
+                        first.get("Offers", {})
+                        .get("Listings", [{}])[0]
+                        .get("Availability", {}).get("Type")
+                        != "OUT_OF_STOCK"
+                    ),
+                },
+                channel="amazon",
+            )
+    except httpx.HTTPStatusError as e:
+        sc = e.response.status_code
+        snippet = e.response.text[:150].replace("\n", " ")
+        if sc in (401, 403):
+            hint = " (LWA access_token invalid or expired; tenant must re-bind via channelAuth)"
+        else:
+            hint = ""
+        return UnifiedResult(
+            status="error",
+            error=f"HTTP {sc}: {snippet}{hint}",
+            channel="amazon",
+        )
+    except Exception as e:
+        return UnifiedResult(status="error", error=str(e)[:200], channel="amazon")