dapr/dapr · error

failed to marshal response as JSON: %w

Error message

failed to marshal response as JSON: %w

What it means

Error "failed to marshal response as JSON: %w" thrown in dapr/dapr.

Source

Thrown at pkg/api/http/lock.go:89

	)
}

func (a *api) onUnlockAlpha1() http.HandlerFunc {
	return UniversalHTTPHandler(
		a.universal.UnlockAlpha1,
		UniversalHTTPHandlerOpts[*runtimev1pb.UnlockRequest, *runtimev1pb.UnlockResponse]{
			InModifier: func(r *http.Request, in *runtimev1pb.UnlockRequest) (*runtimev1pb.UnlockRequest, error) {
				in.StoreName = chi.URLParam(r, storeNameParam)
				return in, nil
			},
			OutModifier: func(out *runtimev1pb.UnlockResponse) (any, error) {
				// Create the response manually because we want to report the status as a number and not a string
				b, err := protojson.MarshalOptions{
					EmitUnpopulated: true,
					UseEnumNumbers:  true,
				}.Marshal(out)
				if err != nil {
					return nil, fmt.Errorf("failed to marshal response as JSON: %w", err)
				}
				return UniversalHTTPRawResponse{
					Body:        b,
					ContentType: jsonContentTypeHeader,
				}, nil
			},
		},
	)
}

View on GitHub (pinned to 74ad417027)

When it happens

Trigger: Thrown at pkg/api/http/lock.go:89 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of dapr/dapr@74ad417027 (2026-08-16). Data as JSON: /api/errors/12ca9a604d97d636. Report an issue: GitHub.