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Add error handling to examples #312
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The error after calling jwt.Parse is often omitted while other errors are checked. The lack of consistency can be a bit confusing I think, so this PR adds some of the checks in.
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Thanks! It's a start, but I am still not really too happy about the whole situation where we have an err
and token.Valid
. They pretty much represent the same information, i.e., if there was no error, token.Valid
will always be true. However, if there is an error, token.Valid
is most likely. be true, but it could also be that the error happens before token validation, and thus token
is nil
.
I would even lean towards only checking for err
and leaving out checks to token.Valid
👋 @oxisto. Thanks for the review! That makes good sense. I removed all the |
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I adjusted the use of else-if consistently, looks good then
[](https://renovatebot.com) This PR contains the following updates: | Package | Type | Update | Change | |---|---|---|---| | [github.com/golang-jwt/jwt/v5](https://togithub.com/golang-jwt/jwt) | require | minor | `v5.0.0` -> `v5.1.0` | | golang.org/x/crypto | require | minor | `v0.14.0` -> `v0.15.0` | | golang.org/x/net | require | minor | `v0.17.0` -> `v0.18.0` | | golang.org/x/oauth2 | require | minor | `v0.13.0` -> `v0.14.0` | | golang.org/x/term | require | minor | `v0.13.0` -> `v0.14.0` | --- ### Release Notes <details> <summary>golang-jwt/jwt (github.com/golang-jwt/jwt/v5)</summary> ### [`v5.1.0`](https://togithub.com/golang-jwt/jwt/releases/tag/v5.1.0) [Compare Source](https://togithub.com/golang-jwt/jwt/compare/v5.0.0...v5.1.0) #### What's Changed - Using jwt's native `ErrInvalidType` instead of `json.UnsupportedTypeError` by [@​oxisto](https://togithub.com/oxisto) in [https://github.com/golang-jwt/jwt/pull/316](https://togithub.com/golang-jwt/jwt/pull/316) - Fix typos in comments and test names by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/317](https://togithub.com/golang-jwt/jwt/pull/317) - Format: add whitespaces, remove empty lines by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/319](https://togithub.com/golang-jwt/jwt/pull/319) - Refactor example: use io.ReadAll instead of io.Copy by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/320](https://togithub.com/golang-jwt/jwt/pull/320) - Refactor code by using switch instead of if-else by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/318](https://togithub.com/golang-jwt/jwt/pull/318) - A quick way to validate token string by [@​dcalsky](https://togithub.com/dcalsky) in [https://github.com/golang-jwt/jwt/pull/302](https://togithub.com/golang-jwt/jwt/pull/302) - Refactor: remove unnecessary \[]byte conversion to string by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/330](https://togithub.com/golang-jwt/jwt/pull/330) - Refactor: compare strings with strings.EqualFold by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/329](https://togithub.com/golang-jwt/jwt/pull/329) - Avoid use of json.NewDecoder by [@​craigpastro](https://togithub.com/craigpastro) in [https://github.com/golang-jwt/jwt/pull/313](https://togithub.com/golang-jwt/jwt/pull/313) - Update ParseUnverified godoc by [@​duhaesbaert](https://togithub.com/duhaesbaert) in [https://github.com/golang-jwt/jwt/pull/341](https://togithub.com/golang-jwt/jwt/pull/341) - Update ci workflows (add go1.21) by [@​mfridman](https://togithub.com/mfridman) in [https://github.com/golang-jwt/jwt/pull/345](https://togithub.com/golang-jwt/jwt/pull/345) - Bump actions/checkout from 3 to 4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/golang-jwt/jwt/pull/346](https://togithub.com/golang-jwt/jwt/pull/346) - Key rotation with VerificationKeySet by [@​mfridman](https://togithub.com/mfridman) in [https://github.com/golang-jwt/jwt/pull/344](https://togithub.com/golang-jwt/jwt/pull/344) - Add explicit ClaimsValidator implementation check for custom claims by [@​epelc](https://togithub.com/epelc) in [https://github.com/golang-jwt/jwt/pull/343](https://togithub.com/golang-jwt/jwt/pull/343) - feat: allow making exp claim required by [@​tareksha](https://togithub.com/tareksha) in [https://github.com/golang-jwt/jwt/pull/351](https://togithub.com/golang-jwt/jwt/pull/351) - Add error handling to examples by [@​craigpastro](https://togithub.com/craigpastro) in [https://github.com/golang-jwt/jwt/pull/312](https://togithub.com/golang-jwt/jwt/pull/312) #### New Contributors - [@​alexandear](https://togithub.com/alexandear) made their first contribution in [https://github.com/golang-jwt/jwt/pull/317](https://togithub.com/golang-jwt/jwt/pull/317) - [@​dcalsky](https://togithub.com/dcalsky) made their first contribution in [https://github.com/golang-jwt/jwt/pull/302](https://togithub.com/golang-jwt/jwt/pull/302) - [@​craigpastro](https://togithub.com/craigpastro) made their first contribution in [https://github.com/golang-jwt/jwt/pull/313](https://togithub.com/golang-jwt/jwt/pull/313) - [@​duhaesbaert](https://togithub.com/duhaesbaert) made their first contribution in [https://github.com/golang-jwt/jwt/pull/341](https://togithub.com/golang-jwt/jwt/pull/341) - [@​epelc](https://togithub.com/epelc) made their first contribution in [https://github.com/golang-jwt/jwt/pull/343](https://togithub.com/golang-jwt/jwt/pull/343) - [@​tareksha](https://togithub.com/tareksha) made their first contribution in [https://github.com/golang-jwt/jwt/pull/351](https://togithub.com/golang-jwt/jwt/pull/351) **Full Changelog**: golang-jwt/jwt@v5.0.0...v5.1.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "before 4am" (UTC), Automerge - "before 4am" (UTC). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 👻 **Immortal**: This PR will be recreated if closed unmerged. 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Format: add whitespaces, remove empty lines by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/319](https://togithub.com/golang-jwt/jwt/pull/319) - Refactor example: use io.ReadAll instead of io.Copy by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/320](https://togithub.com/golang-jwt/jwt/pull/320) - Refactor code by using switch instead of if-else by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/318](https://togithub.com/golang-jwt/jwt/pull/318) - A quick way to validate token string by [@​dcalsky](https://togithub.com/dcalsky) in [https://github.com/golang-jwt/jwt/pull/302](https://togithub.com/golang-jwt/jwt/pull/302) - Refactor: remove unnecessary \[]byte conversion to string by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/330](https://togithub.com/golang-jwt/jwt/pull/330) - Refactor: compare strings with strings.EqualFold by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/329](https://togithub.com/golang-jwt/jwt/pull/329) - Avoid use of json.NewDecoder by [@​craigpastro](https://togithub.com/craigpastro) in [https://github.com/golang-jwt/jwt/pull/313](https://togithub.com/golang-jwt/jwt/pull/313) - Update ParseUnverified godoc by [@​duhaesbaert](https://togithub.com/duhaesbaert) in [https://github.com/golang-jwt/jwt/pull/341](https://togithub.com/golang-jwt/jwt/pull/341) - Update ci workflows (add go1.21) by [@​mfridman](https://togithub.com/mfridman) in [https://github.com/golang-jwt/jwt/pull/345](https://togithub.com/golang-jwt/jwt/pull/345) - Bump actions/checkout from 3 to 4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/golang-jwt/jwt/pull/346](https://togithub.com/golang-jwt/jwt/pull/346) - Key rotation with VerificationKeySet by [@​mfridman](https://togithub.com/mfridman) in [https://github.com/golang-jwt/jwt/pull/344](https://togithub.com/golang-jwt/jwt/pull/344) - Add explicit ClaimsValidator implementation check for custom claims by [@​epelc](https://togithub.com/epelc) in [https://github.com/golang-jwt/jwt/pull/343](https://togithub.com/golang-jwt/jwt/pull/343) - feat: allow making exp claim required by [@​tareksha](https://togithub.com/tareksha) in [https://github.com/golang-jwt/jwt/pull/351](https://togithub.com/golang-jwt/jwt/pull/351) - Add error handling to examples by [@​craigpastro](https://togithub.com/craigpastro) in [https://github.com/golang-jwt/jwt/pull/312](https://togithub.com/golang-jwt/jwt/pull/312) #### New Contributors - [@​alexandear](https://togithub.com/alexandear) made their first contribution in [https://github.com/golang-jwt/jwt/pull/317](https://togithub.com/golang-jwt/jwt/pull/317) - [@​dcalsky](https://togithub.com/dcalsky) made their first contribution in [https://github.com/golang-jwt/jwt/pull/302](https://togithub.com/golang-jwt/jwt/pull/302) - [@​craigpastro](https://togithub.com/craigpastro) made their first contribution in [https://github.com/golang-jwt/jwt/pull/313](https://togithub.com/golang-jwt/jwt/pull/313) - [@​duhaesbaert](https://togithub.com/duhaesbaert) made their first contribution in [https://github.com/golang-jwt/jwt/pull/341](https://togithub.com/golang-jwt/jwt/pull/341) - [@​epelc](https://togithub.com/epelc) made their first contribution in [https://github.com/golang-jwt/jwt/pull/343](https://togithub.com/golang-jwt/jwt/pull/343) - [@​tareksha](https://togithub.com/tareksha) made their first contribution in [https://github.com/golang-jwt/jwt/pull/351](https://togithub.com/golang-jwt/jwt/pull/351) **Full Changelog**: golang-jwt/jwt@v5.0.0...v5.1.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "before 6am on Monday" in timezone Europe/Paris, Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. 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chore: remove unnecessary conversions from tests by [@​estensen](https://togithub.com/estensen) in [https://github.com/golang-jwt/jwt/pull/370](https://togithub.com/golang-jwt/jwt/pull/370) - Trivial: Typo fix for ECDSA error message by [@​tjs-cinemo](https://togithub.com/tjs-cinemo) in [https://github.com/golang-jwt/jwt/pull/373](https://togithub.com/golang-jwt/jwt/pull/373) - Fix incorrect error return by [@​ss49919201](https://togithub.com/ss49919201) in [https://github.com/golang-jwt/jwt/pull/371](https://togithub.com/golang-jwt/jwt/pull/371) #### New Contributors - [@​tjs-cinemo](https://togithub.com/tjs-cinemo) made their first contribution in [https://github.com/golang-jwt/jwt/pull/373](https://togithub.com/golang-jwt/jwt/pull/373) - [@​ss49919201](https://togithub.com/ss49919201) made their first contribution in [https://github.com/golang-jwt/jwt/pull/371](https://togithub.com/golang-jwt/jwt/pull/371) **Full Changelog**: golang-jwt/jwt@v5.2.0...v5.2.1 ### [`v5.2.0`](https://togithub.com/golang-jwt/jwt/releases/tag/v5.2.0) [Compare Source](https://togithub.com/golang-jwt/jwt/compare/v5.1.0...v5.2.0) #### What's Changed - Exported `NewValidator` by [@​oxisto](https://togithub.com/oxisto) in [https://github.com/golang-jwt/jwt/pull/349](https://togithub.com/golang-jwt/jwt/pull/349) - Improve ErrInvalidKeyType error messages by [@​Laurin-Notemann](https://togithub.com/Laurin-Notemann) in [https://github.com/golang-jwt/jwt/pull/361](https://togithub.com/golang-jwt/jwt/pull/361) - Update MIGRATION_GUIDE.md by [@​jbarham](https://togithub.com/jbarham) in [https://github.com/golang-jwt/jwt/pull/363](https://togithub.com/golang-jwt/jwt/pull/363) #### New Contributors - [@​Laurin-Notemann](https://togithub.com/Laurin-Notemann) made their first contribution in [https://github.com/golang-jwt/jwt/pull/361](https://togithub.com/golang-jwt/jwt/pull/361) - [@​jbarham](https://togithub.com/jbarham) made their first contribution in [https://github.com/golang-jwt/jwt/pull/363](https://togithub.com/golang-jwt/jwt/pull/363) **Full Changelog**: golang-jwt/jwt@v5.1.0...v5.2.0 ### [`v5.1.0`](https://togithub.com/golang-jwt/jwt/releases/tag/v5.1.0) [Compare Source](https://togithub.com/golang-jwt/jwt/compare/v5.0.0...v5.1.0) #### What's Changed - Using jwt's native `ErrInvalidType` instead of `json.UnsupportedTypeError` by [@​oxisto](https://togithub.com/oxisto) in [https://github.com/golang-jwt/jwt/pull/316](https://togithub.com/golang-jwt/jwt/pull/316) - Fix typos in comments and test names by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/317](https://togithub.com/golang-jwt/jwt/pull/317) - Format: add whitespaces, remove empty lines by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/319](https://togithub.com/golang-jwt/jwt/pull/319) - Refactor example: use io.ReadAll instead of io.Copy by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/320](https://togithub.com/golang-jwt/jwt/pull/320) - Refactor code by using switch instead of if-else by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/318](https://togithub.com/golang-jwt/jwt/pull/318) - A quick way to validate token string by [@​dcalsky](https://togithub.com/dcalsky) in [https://github.com/golang-jwt/jwt/pull/302](https://togithub.com/golang-jwt/jwt/pull/302) - Refactor: remove unnecessary \[]byte conversion to string by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/330](https://togithub.com/golang-jwt/jwt/pull/330) - Refactor: compare strings with strings.EqualFold by [@​alexandear](https://togithub.com/alexandear) in [https://github.com/golang-jwt/jwt/pull/329](https://togithub.com/golang-jwt/jwt/pull/329) - Avoid use of json.NewDecoder by [@​craigpastro](https://togithub.com/craigpastro) in [https://github.com/golang-jwt/jwt/pull/313](https://togithub.com/golang-jwt/jwt/pull/313) - Update ParseUnverified godoc by [@​duhaesbaert](https://togithub.com/duhaesbaert) in [https://github.com/golang-jwt/jwt/pull/341](https://togithub.com/golang-jwt/jwt/pull/341) - Update ci workflows (add go1.21) by [@​mfridman](https://togithub.com/mfridman) in [https://github.com/golang-jwt/jwt/pull/345](https://togithub.com/golang-jwt/jwt/pull/345) - Bump actions/checkout from 3 to 4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/golang-jwt/jwt/pull/346](https://togithub.com/golang-jwt/jwt/pull/346) - Key rotation with VerificationKeySet by [@​mfridman](https://togithub.com/mfridman) in [https://github.com/golang-jwt/jwt/pull/344](https://togithub.com/golang-jwt/jwt/pull/344) - Add explicit ClaimsValidator implementation check for custom claims by [@​epelc](https://togithub.com/epelc) in [https://github.com/golang-jwt/jwt/pull/343](https://togithub.com/golang-jwt/jwt/pull/343) - feat: allow making exp claim required by [@​tareksha](https://togithub.com/tareksha) in [https://github.com/golang-jwt/jwt/pull/351](https://togithub.com/golang-jwt/jwt/pull/351) - Add error handling to examples by [@​craigpastro](https://togithub.com/craigpastro) in [https://github.com/golang-jwt/jwt/pull/312](https://togithub.com/golang-jwt/jwt/pull/312) #### New Contributors - [@​alexandear](https://togithub.com/alexandear) made their first contribution in [https://github.com/golang-jwt/jwt/pull/317](https://togithub.com/golang-jwt/jwt/pull/317) - [@​dcalsky](https://togithub.com/dcalsky) made their first contribution in [https://github.com/golang-jwt/jwt/pull/302](https://togithub.com/golang-jwt/jwt/pull/302) - [@​craigpastro](https://togithub.com/craigpastro) made their first contribution in [https://github.com/golang-jwt/jwt/pull/313](https://togithub.com/golang-jwt/jwt/pull/313) - [@​duhaesbaert](https://togithub.com/duhaesbaert) made their first contribution in [https://github.com/golang-jwt/jwt/pull/341](https://togithub.com/golang-jwt/jwt/pull/341) - [@​epelc](https://togithub.com/epelc) made their first contribution in [https://github.com/golang-jwt/jwt/pull/343](https://togithub.com/golang-jwt/jwt/pull/343) - [@​tareksha](https://togithub.com/tareksha) made their first contribution in [https://github.com/golang-jwt/jwt/pull/351](https://togithub.com/golang-jwt/jwt/pull/351) **Full Changelog**: golang-jwt/jwt@v5.0.0...v5.1.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - 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The error after calling jwt.Parse is often omitted while other errors are checked. The lack of consistency can be a bit confusing I think, so this PR adds some of the checks in.
Resolves #309 I suppose.