Douban Group topic API

Temporarily unavailable

We are restoring this capability. Until then calls usually fail or return no results; failed calls and empty results are not charged.

POST

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Read a Douban group discussion from its topic link, with the opening post, group name and link, author, reply count and the replies themselves. max_replies sets how many replies to fetch, from 1 to 100 (default 20); closed groups are out of reach and the thread may be incomplete.

Price $1.39 per 1,000 requests ($0.001389 per call). Failed calls and empty results are not charged. Synchronous. For slow jobs add "mode": "async" to the body, take the job_id and poll.

AI prompt

Paste this into your AI assistant. It already holds this endpoint's parameters, response fields and an example request, so the assistant can ask what you need and then write the scraper.

Please help me write a data collection script with the EveryInfra Douban Group topic endpoint (douban/group_topic).

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 douban and action to group_topic, and put the parameters inside params.
- Required parameters:
  - url: Specifies the target subject URL formatted as /subject/<ID>/ on movie.douban.com, book.douban.com, or music.douban.com for reviews or comments actions, or as www.douban.com/group/topic/<ID>/ for group_topic.
- Optional parameters:
  - max_replies: Limits the number of topic replies fetched by group_topic per request, accepting integers from 1 to 100 (default 20).
  - limit: The most rows to return in this call, an integer from 1 to 50. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge. (default: 10)
- Returns a list of records. Main fields of each record: id, url, title, text, group_id, group_name, group_url, author_name, author_url, reply_count, replies, posted_at.
- Example request body:
{
  "platform": "douban",
  "action": "group_topic",
  "params": {
    "url": "https://www.douban.com/group/topic/495209798/"
  }
}
- 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.

Request parameters

Name	In	Type	Required	Default	Description
`Authorization`	header	`string`	Yes	-	Bearer followed by your API key. Create it in the console; never put it in a URL or a code repository.
`platform`	body	`string`	Yes	`douban`	Platform identifier, fixed value.
`action`	body	`string`	Yes	`group_topic`	Capability identifier, fixed value.
`url`	body.params	Not declared	Yes	-	Specifies the target subject URL formatted as /subject/<ID>/ on movie.douban.com, book.douban.com, or music.douban.com for reviews or comments actions, or as www.douban.com/group/topic/<ID>/ for group_topic. Long reviews, short comments, and group topic replies are handled by separate action endpoints.
`max_replies`	body.params	Not declared	No	-	Limits the number of topic replies fetched by group_topic per request, accepting integers from 1 to 100 (default 20). Out-of-bounds values are clamped to boundary limits, non-parseable values revert to the default, and returned counts do not guarantee retrieval of all historical replies.
`limit`	body.params	`integer (1–50)`	No	`10`	The most rows to return in this call, an integer from 1 to 50. The default applies when you leave it out, and a call can return fewer rows. Larger values return 422 before any charge.

Code samples

bash

curl -X POST 'https://api.everyinfra.com/api/v1/social' \
  -H "Authorization: Bearer $EVERYINFRA_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "platform": "douban",
  "action": "group_topic",
  "params": {
    "url": "https://www.douban.com/group/topic/495209798/"
  }
}'

[OpenAPI definition (JSON)]Samples read the key from the EVERYINFRA_API_KEY environment variable; copied code never contains your key.

Response example

Field preview

There is no real sample for these example parameters yet: this shows the response shape and fields from the contract, with … as placeholders. It is not the result of a real call.

json

{
  "id": "req_…",
  "platform": "douban",
  "action": "group_topic",
  "results": [
    {
      "id": …,
      "url": …,
      "title": …,
      "text": …,
      "group_id": …,
      "group_name": …,
      "group_url": …,
      "author_name": …,
      "author_url": …,
      "reply_count": …,
      "replies": …,
      "posted_at": …,
      "platform": …
    }
  ],
  "count": …,
  "billing": {
    "charged": …,
    "charged_usd": …,
    "balance_after_usd": …,
    …
  },
  "quota": { … }
}

Response fields

Business data is in results. The table lists the fields a record can contain; values the platform does not show are never made up.

Field	Meaning
`id`	The record's unique ID on the platform. Unique only within one platform; IDs can repeat across platforms.
`url`	Link to the record on the platform.
`title`	Title. null when the platform has no titles (for example text-only posts).
`text`	Body text with HTML removed, returned in full and never cut short (on a few platforms the list results themselves carry only an excerpt; the platform's field notes say so).
`group_id`	Keeps the platform's own meaning
`group_name`	Keeps the platform's own meaning
`group_url`	Keeps the platform's own meaning
`author_name`	Author's display name.
`author_url`	Link to the author's profile on the platform.
`reply_count`	Replies, usually replies to a comment. null means not disclosed.
`replies`	Keeps the platform's own meaning
`posted_at`	Publish time in ISO 8601, UTC (for example 2026-08-07T12:34:56+00:00). Non-standard strings from the platform are passed through as is, so parse defensively. null means the platform does not disclose it.
`platform`	Source platform identifier, the same as platform in the request (for example xiaohongshu, tiktok).

Errors and billing

401: Missing or invalid key. Authentication runs before parameter checks, so unauthenticated requests never see the parameter schema.
422: Wrong parameter name or value. The error lists the parameters and allowed values this capability accepts and the closest match; it happens before any charge.
402: Insufficient balance. Top up first.
429: The account's per-minute request limit was reached (all of its API keys count together; a key's own lower limit applies first). Wait for Retry-After and try again; a rate package in the console raises the limit.
503: Could not complete right now. Any charge for the call goes back to your balance automatically, and the billing receipt in the response states the actual outcome, including when it is not yet known. Do not resend blindly.
200 empty: The request completed without data and is not charged (billing.reason = empty_result_refunded).

Official references

Used only to check objects and terms. They do not imply authorization or endorsement of EveryInfra by the platform.

Douban Groups: Reading Topics Is Distinct from Member Management ↗
Douban Help lists joining groups, pinning topics, and managing members as distinct features, with certain actions requiring group leader or administrator permissions. Fetching specific topics here and citing management documentation does not grant those permissions, nor does it provide join, post, or management operations.
Checked 2026-09-04