Xiaohongshu Search API

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

How the endpoint works:
- 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 xiaohongshu and action to search, and put the parameters inside params.
- Required parameters:
  - keyword: Specifies the query string used to search Xiaohongshu note content (e.g., "sensitive skin sunscreen") in the search action. Searches note text, not user IDs.
- Optional parameters:
  - content_type: Filters returned notes by content type, such as image/text or video. Use the allowed values listed for the current action. (allowed: all / image / video)
  - date_range: Filters notes by publish time: any_time (no limit, the same as omitting it), last_24_hours (the past 24 hours), last_7_days (the past 7 days), last_30_days (the past month), last_6_months (the past six months) or last_1_… (allowed: any_time / last_1_year / last_24_hours / last_30_days / last_6_months / last_7_days)
  - page_token: Pagination cursor for the comments, sub_comments, search, user_posts, search_users and hashtag actions: pass back the next_page_token value from a row of the previous response to fetch the next page.
  - sort: Sets the order of note lists in the search action: relevance, newest, most_liked, most_commented or most_collected. Use only the allowed values listed for the action. (allowed: most_collected / most_commented / most_liked / newest / relevance)
- Returns a list of records. Main fields of each record: id, url (The record's link on Xiaohongshu), title, text (Note body or comment text), like_count (Like count), collect_count (Save count), comment_count, share_count, posted_at, image_url, author_name, author_id (The author's user ID); 29 fields in total, full list at https://api.everyinfra.com/api/v1/social/catalog?platform=xiaohongshu.
- Example request body:
{
  "platform": "xiaohongshu",
  "action": "search",
  "params": {
    "keyword": "小户型收纳"
  }
}
- Price: $5.56 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.