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# Which Problems Are Solved The current maintained gRPC server in combination with a REST (grpc) gateway is getting harder and harder to maintain. Additionally, there have been and still are issues with supporting / displaying `oneOf`s correctly. We therefore decided to exchange the server implementation to connectRPC, which apart from supporting connect as protocol, also also "standard" gRCP clients as well as HTTP/1.1 / rest like clients, e.g. curl directly call the server without any additional gateway. # How the Problems Are Solved - All v2 services are moved to connectRPC implementation. (v1 services are still served as pure grpc servers) - All gRPC server interceptors were migrated / copied to a corresponding connectRPC interceptor. - API.ListGrpcServices and API. ListGrpcMethods were changed to include the connect services and endpoints. - gRPC server reflection was changed to a `StaticReflector` using the `ListGrpcServices` list. - The `grpc.Server` interfaces was split into different combinations to be able to handle the different cases (grpc server and prefixed gateway, connect server with grpc gateway, connect server only, ...) - Docs of services serving connectRPC only with no additional gateway (instance, webkey, project, app, org v2 beta) are changed to expose that - since the plugin is not yet available on buf, we download it using `postinstall` hook of the docs # Additional Changes - WebKey service is added as v2 service (in addition to the current v2beta) # Additional Context closes #9483 --------- Co-authored-by: Elio Bischof <elio@zitadel.com>
37 lines
998 B
Go
37 lines
998 B
Go
package connect_middleware
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import (
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"context"
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"connectrpc.com/connect"
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// import to make sure go.mod does not lose it
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// because dependency is only needed for generated code
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_ "github.com/envoyproxy/protoc-gen-validate/validate"
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)
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func ValidationHandler() connect.UnaryInterceptorFunc {
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return func(handler connect.UnaryFunc) connect.UnaryFunc {
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return func(ctx context.Context, req connect.AnyRequest) (connect.AnyResponse, error) {
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return validate(ctx, req, handler)
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}
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}
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}
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// validator interface needed for github.com/envoyproxy/protoc-gen-validate
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// (it does not expose an interface itself)
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type validator interface {
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Validate() error
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}
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func validate(ctx context.Context, req connect.AnyRequest, handler connect.UnaryFunc) (connect.AnyResponse, error) {
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validate, ok := req.Any().(validator)
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if !ok {
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return handler(ctx, req)
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}
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err := validate.Validate()
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if err != nil {
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return nil, connect.NewError(connect.CodeInvalidArgument, err)
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}
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return handler(ctx, req)
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}
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