USERNAME_PURCHASE_AVAILABLE
USERNAME_PURCHASE_AVAILABLE
Section titled “USERNAME_PURCHASE_AVAILABLE”The specified username can be purchased on https://fragment.com.
Error details
Section titled “Error details”- code: 400
- parameterized: no
- mapped methods:
account.checkUsername,account.updateUsername,channels.checkUsername,channels.updateUsername
Python error class
Section titled “Python error class”from miniproto.errors import UsernamePurchaseAvailablePublic access: miniproto.errors.UsernamePurchaseAvailable.
Provenance
Section titled “Provenance”- layer: 228
- structural source:
tdlib - RPC error source: https://core.telegram.org/api/errors
- prose merge precedence: TDLib → Telegram Desktop → Core JSON
- source note: Canonical structure is the pinned TDLib telegram_api.tl; Layer 228 comes only from the matching Telegram Desktop end-of-file marker; core.telegram.org inputs enrich documentation and RPC error metadata without overriding structure.
Source-diff notes
Section titled “Source-diff notes”- tdlib_vs_core: changed_count=68; core_only_count=1; overlap_count=2302; tdlib_only_count=158
- tdlib_vs_tdesktop: changed_count=0; overlap_count=2448; tdesktop_only=null; tdlib_only=accessPointRule, ephemeral.editMessage, help.configSimple, inputPeerPhotoFileLocationLegacy, inputStickerSetThumbLegacy, invokeWithApnsSecretPrefix, invokeWithBusinessConnectionPrefix, invokeWithGooglePlayIntegrityPrefix, invokeWithReCaptchaPrefix, ipPort, ipPortSecret, updateEphemeralBotCallbackQuery
miniprotoFast paths where they count. Explicit boundaries everywhere else.