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[chore] Prefer JSON errors in API endpoints (#1766)

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* Default to JSON over HTML for error handling

* Change the default error display for web endpoints to html
This commit is contained in:
Natsu Kagami
2023-05-12 08:16:41 +00:00
committed by GitHub
parent 265cc32516
commit ba5a464ca5
11 changed files with 50 additions and 44 deletions
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10
internal/api/util/errorhandling.go
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@ -88,7 +88,8 @@ func genericErrorHandler(c *gin.Context, instanceGet func(ctx context.Context) (
// the caller prefers to see an html page with the error rendered there. If not, or
// if something goes wrong during the function, it will recover and just try to serve
// an appropriate application/json content-type error.
func ErrorHandler(c *gin.Context, errWithCode gtserror.WithCode, instanceGet func(ctx context.Context) (*apimodel.InstanceV1, gtserror.WithCode)) {
// To override the default response type, specify `offers`.
func ErrorHandler(c *gin.Context, errWithCode gtserror.WithCode, instanceGet func(ctx context.Context) (*apimodel.InstanceV1, gtserror.WithCode), offers ...MIME) {
// set the error on the gin context so that it can be logged
// in the gin logger middleware (internal/router/logger.go)
c.Error(errWithCode) //nolint:errcheck
@ -97,7 +98,7 @@ func ErrorHandler(c *gin.Context, errWithCode gtserror.WithCode, instanceGet fun
// or if we should just use a json. Normally we would want to
// check for a returned error, but if an error occurs here we
// can just fall back to default behavior (serve json error).
accept, _ := NegotiateAccept(c, HTMLOrJSONAcceptHeaders...)
accept, _ := NegotiateAccept(c, JSONOrHTMLAcceptHeaders...)
if errWithCode.Code() == http.StatusNotFound {
// use our special not found handler with useful status text
@ -107,6 +108,11 @@ func ErrorHandler(c *gin.Context, errWithCode gtserror.WithCode, instanceGet fun
}
}
// WebErrorHandler is like ErrorHandler, but will display HTML over JSON by default.
func WebErrorHandler(c *gin.Context, errWithCode gtserror.WithCode, instanceGet func(ctx context.Context) (*apimodel.InstanceV1, gtserror.WithCode)) {
ErrorHandler(c, errWithCode, instanceGet, TextHTML, AppJSON)
}
// OAuthErrorHandler is a lot like ErrorHandler, but it specifically returns errors
// that are compatible with https://datatracker.ietf.org/doc/html/rfc6749#section-5.2,
// but serializing errWithCode.Error() in the 'error' field, and putting any help text