[PR #5654] fix: add undefined type for optional property types #14390

New Issue

2026-04-13T09:27:08-05:00

GiteaMirror commented

2026-04-13 09:27:08 -05:00

Original Pull Request: https://github.com/better-auth/better-auth/pull/5654

State: closed
Merged: Yes

use ast-grep to replace all types

Summary by cubic

Explicitly added undefined to all optional properties and parameters across the codebase to align with TypeScript’s exactOptionalPropertyTypes and strict settings. Fixes type errors for consumers without changing runtime behavior.

Bug Fixes
- Added | undefined to optional fields in adapters, client APIs, plugins, and tests.
- Standardized function signatures (e.g., rate limiter, JWT, OIDC, API key, cookies) to accept undefined where optional.
- Improved generics and unions for clearer output/where/select transforms and client hooks.
- Updated tests to reflect new typings.

**Original Pull Request:** https://github.com/better-auth/better-auth/pull/5654 **State:** closed **Merged:** Yes --- use `ast-grep` to replace all types  --- ## Summary by cubic Explicitly added undefined to all optional properties and parameters across the codebase to align with TypeScript’s exactOptionalPropertyTypes and strict settings. Fixes type errors for consumers without changing runtime behavior. - **Bug Fixes** - Added | undefined to optional fields in adapters, client APIs, plugins, and tests. - Standardized function signatures (e.g., rate limiter, JWT, OIDC, API key, cookies) to accept undefined where optional. - Improved generics and unions for clearer output/where/select transforms and client hooks. - Updated tests to reflect new typings.

GiteaMirror added the pull-request label 2026-04-13 09:27:08 -05:00

GiteaMirror closed this issue

2026-04-13 09:27:08 -05:00

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2026-08-23/docs/prisma-v7-adapter-setup

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feat/provider-scoped-account-identity

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2026-08-19/fix/mysql-disabled-index-introspection

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starsling/drizzle-kit-push-util

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dependabot/github_actions/github-actions-42c4bc6a62

2026-08-14/fix/standardize-plugin-types

2026-08-13/fix/dpop-public-url

2026-08-13/fix/acr-values-voluntary

starsling/CHG-forget-processed-cleanup-rows-b8077b74ef9a-4971f8e41755

refactor/device-authorization-oauth-boundary

2026-08-11/fix/api-key-rate-limit-window

feat/oauth-provider-custom-subject

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2026-06-29/docs/optimize-og-images

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refactor/oauth-provider-client-authentication-module

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2026-06-06/chore/kysely-changeset

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ping-maxwell/c-ping-maxwell/fix-kysely-adapter-core-utils-string-resolution-68c5

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2026-04-29/feat/google-include-granted-scopes

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fix/oauth-callback-path-declarative

2026-05-31/fix/sqlite-dialect-affected-rows

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fix/disable-migration-generate

2026-05-10/fix/cookie-drain-order

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2026-04-26/refactor/stripe-callback-signature-cleanup

2026-04-26/fix/stripe-subscription-callback-timing

2026-04-11/fix/sveltekit-app-modules

feat/open-api-zod-contract

feat/oauth-idp-initiated-bounce

2026-04-21/fix/oauth-rfc-input-validation

fix/two-factor-identity-guard

fix/resource

feat/emailpassword-authorize

feat/oauth-provider-at-hash-v2

fix/release-grep-fallback

claude/address-review-comments-JhFLr

feat/async-auth

fix/two-factor-totp-verified-enrollment

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2026-04-06/fix/type-any-guards

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Reference: github-starred/better-auth#14390

[PR #5654] fix: add undefined type for optional property types #14390

Summary by cubic

[PR #5654] fix: add `undefined` type for optional property types #14390