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Title: fix: cast JWT iss claim to string for PyJWT 2.12+ compatibility by primetheus · Pull Request #6 · primetheus/fastapi-githubapp · GitHub

Open Graph Title: fix: cast JWT iss claim to string for PyJWT 2.12+ compatibility by primetheus · Pull Request #6 · primetheus/fastapi-githubapp

X Title: fix: cast JWT iss claim to string for PyJWT 2.12+ compatibility by primetheus · Pull Request #6 · primetheus/fastapi-githubapp

Description: Summary Cast self.id to str() in _create_jwt() payload to satisfy PyJWT 2.12+ type enforcement on the iss claim Update test expectation to match Context PyJWT 2.12+ enforces that the iss (issuer) claim must be a string, per RFC 7519 Section 4.1.1 (StringOrURI). Previously self.id (an int from github_app_id) was passed directly, which worked with older PyJWT versions but fails with: TypeError: Issuer (iss) must be a string. Why this is safe Older PyJWT versions accept both int and str for iss — no breakage GitHub's API matches the app ID by value regardless of JSON type (12345 vs "12345") RFC 7519 defines iss as StringOrURI — string is the correct type Test plan Updated test_create_jwt_payload_structure to expect "iss": "123" instead of "iss": 123 Verified PyJWT 2.12.1 accepts the change Verified older PyJWT behavior is unaffected (string is valid in all versions)

Open Graph Description: Summary Cast self.id to str() in _create_jwt() payload to satisfy PyJWT 2.12+ type enforcement on the iss claim Update test expectation to match Context PyJWT 2.12+ enforces that the iss (issuer)...

X Description: Summary Cast self.id to str() in _create_jwt() payload to satisfy PyJWT 2.12+ type enforcement on the iss claim Update test expectation to match Context PyJWT 2.12+ enforces that the iss (issuer)...

Opengraph URL: https://github.com/primetheus/fastapi-githubapp/pull/6

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fix: cast JWT iss claim to string for PyJWT 2.12+ compatibility https://github.com/primetheus/fastapi-githubapp/pull/6/files#top
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40d3938 fix: cast self.id to str in JWT payload for PyJWT 2.12+ compatibility primetheus Mar 20, 2026 https://github.com/primetheus/fastapi-githubapp/pull/6/commits/40d393870208db99d872da8e30516bda92ac17dd
fc23f10 fix: guard against None app ID before JWT creation primetheus Mar 20, 2026 https://github.com/primetheus/fastapi-githubapp/pull/6/commits/fc23f10d31e94e58ecc5d42aed711740548a3416
0780663 Merge branch 'main' into fix/jwt-iss-string-type primetheus Mar 20, 2026 https://github.com/primetheus/fastapi-githubapp/pull/6/commits/07806634a48946b8b59cac20eb964eec7b791d87
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