gdformat

Parser and builder for the Geometry Dash 2.2 server protocol. It covers the wire objects, the full endpoint response envelopes and typed parsing of every endpoint's form parameters, so a server never handles the raw format itself.

Only the latest game version is supported. Python 3.14, managed with uv, no runtime dependencies.

Layout

Module	Contents
`gdformat.objects`	Frozen dataclasses for each wire object (`Level`, `User`, `Comment`, `Song`, ...) with `serialise_` / `parse_` functions.
`gdformat.responses`	One `serialise_*` per endpoint response, producing the exact string to send.
`gdformat.requests`	One `Request` dataclass and `parse_` per endpoint, taking the POST form. `verify_*` helpers check the client integrity values.
`gdformat.crypto`	XOR keys and salts, `gjp2`, `chk` generation, response hashes, level passwords, leaderboard seeds.
`gdformat.encoding`	Base64, XOR, level string compression, URL quoting, relative age strings.
`gdformat.enums`	Every discriminant the protocol uses.
`gdformat.codes`	Documented numeric response codes.

Usage

from gdformat import is_error, objects, requests, responses

def download_level(form: dict[str, str]) -> str:
    request = requests.parse_download_level(form)
    if is_error(request):
        return "-1"

    level = objects.Level(...)  # Built from your storage.
    return responses.serialise_level_download(level, songs)

Failures are values: every parser returns T | ParseError, narrowed with is_error / is_success. Nothing in the library raises.

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