1688 Search API

Please help me write a data collection script with the EveryInfra 1688 Search endpoint (alibaba1688/search).

Endpoint contract:
- Request: POST https://api.everyinfra.com/api/v1/social with the header Authorization: Bearer <API key>. Read the key from the EVERYINFRA_API_KEY environment variable and never hard-code it.
- In the request body, set platform to alibaba1688 and action to search, and put the parameters inside params.
- Required parameters:
  - keyword: Specifies the search term for 1688 wholesale products (for example, insulated mugs or cardboard boxes). Use product terms rather than store names or offerIds.
- Optional parameters:
  - city: Filters 1688 wholesale item queries by city name text. This filter does not reflect account locations, change returned seller addresses, or guarantee persistent filtering on single-product detail requests.
  - max_price: Filters wholesale items by maximum unit price as a numeric value. It operates alongside min_price to bound price ranges rather than tier order quantities, and it may not cover every SKU variant or volume discount tier.
  - min_price: Filters wholesale items by minimum unit price as a numeric value. This parameter sets item criteria rather than minimum order quantities or API spend limits, and returned tier pricing varies by order volume.
  - sort: Sorts search items by relevance (default for search), popular, price_asc, or price_desc. Sorting criteria do not guarantee exact sales figures or total transaction amounts in the payload. (allowed: popular / price_asc / price_desc / relevance)
  - limit: The most rows to return in this call, an integer from 1 to 100. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge. (default: 20)
- Returns a list of records. Main fields of each record: id, url, title, text, price_min (Lower bound of the price range), price_max (Upper bound of the price range), currency, min_order_quantity (Minimum order quantity (MOQ)), order_count (Order count), repurchase_rate (Repurchase rate), category, city; 24 fields in total, full list at https://api.everyinfra.com/api/v1/social/catalog?platform=alibaba1688.
- Example request body:
{
  "platform": "alibaba1688",
  "action": "search",
  "params": {
    "keyword": "不锈钢保温杯"
  }
}
- Price: $1.39 per 1,000 requests; failed and empty results are not charged.
- For dozens or hundreds of targets, add "mode": "async" to the body: you get a job_id at once and poll GET https://api.everyinfra.com/api/v1/jobs/{job_id} for the result.
- On 422, fix the request using the suggested parameter names and allowed values in the error; on 429 or 503, wait for Retry-After and try again.

Before writing code, ask me which targets I need, how many, which fields, and what output format I want; then confirm the plan and the rough cost with me.