111 lines
2.9 KiB
Go
111 lines
2.9 KiB
Go
package validator
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import (
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"context"
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"github.com/unistack-org/micro/v3/client"
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"github.com/unistack-org/micro/v3/errors"
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"github.com/unistack-org/micro/v3/server"
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)
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type validator interface {
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Validate() error
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}
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type wrapper struct {
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client.Client
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}
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func NewClientWrapper() client.Wrapper {
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return func(c client.Client) client.Client {
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handler := &wrapper{
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Client: c,
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}
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return handler
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}
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}
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func NewClientCallWrapper() client.CallWrapper {
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return func(fn client.CallFunc) client.CallFunc {
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return func(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
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if v, ok := req.Body().(validator); ok {
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if verr := v.Validate(); verr != nil {
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return errors.BadRequest(req.Service(), "%v", verr)
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}
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}
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err := fn(ctx, addr, req, rsp, opts)
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if v, ok := rsp.(validator); ok {
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if verr := v.Validate(); verr != nil {
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return errors.BadGateway(req.Service(), "%v", verr)
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}
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}
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return err
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}
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}
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}
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func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
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if v, ok := req.Body().(validator); ok {
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if verr := v.Validate(); verr != nil {
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return errors.BadRequest(req.Service(), "%v", verr)
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}
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}
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err := w.Client.Call(ctx, req, rsp, opts...)
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if v, ok := rsp.(validator); ok {
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if verr := v.Validate(); verr != nil {
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return errors.BadGateway(req.Service(), "%v", verr)
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}
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}
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return err
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}
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func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
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if v, ok := req.Body().(validator); ok {
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if verr := v.Validate(); verr != nil {
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return nil, errors.BadRequest(req.Service(), "%v", verr)
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}
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}
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return w.Client.Stream(ctx, req, opts...)
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}
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func (w *wrapper) Publish(ctx context.Context, msg client.Message, opts ...client.PublishOption) error {
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if v, ok := msg.Payload().(validator); ok {
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if err := v.Validate(); err != nil {
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return errors.BadRequest(msg.Topic(), "%v", err)
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}
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}
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return w.Client.Publish(ctx, msg, opts...)
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}
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func NewServerHandlerWrapper() server.HandlerWrapper {
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return func(fn server.HandlerFunc) server.HandlerFunc {
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return func(ctx context.Context, req server.Request, rsp interface{}) error {
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if v, ok := req.Body().(validator); ok {
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if verr := v.Validate(); verr != nil {
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return errors.BadRequest(req.Service(), "%v", verr)
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}
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}
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err := fn(ctx, req, rsp)
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if v, ok := rsp.(validator); ok {
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if verr := v.Validate(); verr != nil {
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return errors.BadGateway(req.Service(), "%v", verr)
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}
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}
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return err
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}
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}
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}
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func NewServerSubscriberWrapper() server.SubscriberWrapper {
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return func(fn server.SubscriberFunc) server.SubscriberFunc {
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return func(ctx context.Context, msg server.Message) error {
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if v, ok := msg.Payload().(validator); ok {
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if err := v.Validate(); err != nil {
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return errors.BadRequest(msg.Topic(), "%v", err)
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}
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}
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return fn(ctx, msg)
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}
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}
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}
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