lichess-org / lichess-org/lila

API arena tournament info - Page number limited to 200

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Dominant language
Scala
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Description

As described on https://lichess.org/api#operation/tournament one can get detailed score sheets of participants in an arena via the endpoint `https://lichess.org/tournament/{id}?page={p}`, with page p returning the p-th group of 10 players. Currently the page option is limited to a number below 200, which is insufficient for big tournaments with more than 2000 players (e.g. some of the marathons, which had up to 31000 participants, a factor 15-16 above this limit).

Can this upper bound on the page be removed/increased, to be able to fetch score sheets of players finishing above the 2000th position?

(Using e.g. `?page=201` or `?page=202` still returns the 200th page, so this limit is actually enforced and seemingly cannot be circumvented.)

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start from the documented GET /tournament/{id}?page={p} endpoint and trace how the page parameter is validated or capped. Confirm the current behavior with a tournament exceeding 2,000 participants, then verify that later pages return the corresponding participant groups without breaking existing pagination behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
api, backend
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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