golangCtx.go

import (
  mt "github.com/micro/go-micro/metadata"
)

// get user info from context passed by auth middleware
func getUserInfo(incomingContext context.Context) map[string]string {
	userMap := map[string]string{}

	value := incomingContext.Value(constant.UserMetaKey)
	if value != nil {
		userInfo := value.(map[string]interface{})
		for k, v := range userInfo {
			userMap[k] = v.(string)
		}
	}
	return userMap
}

// To inject the user info to GRPC context
func (r *pastPaymentResolver) Payments(ctx context.Context, obj *models.PastPayment, last int, currency string, after *string) (models.PaymentConnection, error) {
  ....
  ....
  // create new context by augmenting user info into it
  // need to use metadata in go-micro instead of golang grpc
  ctx = mt.NewContext(ctx, getUserInfo(ctx))
  ...
  
}

//===================================EOF=======================================


import "github.com/micro/go-micro/metadata"

// read the context in payment services
func (p *PaymentService) GetLastPaymentMethods(c context.Context, req *payment.RequestWithCurrency, res *payment.Response) error {
  ....
	var clientId string
	md, ok := metadata.FromContext(c)
	if ok {
		clientId = md["Clientid"]
	} else {
		localLogger.WithError(ErrNotContainClientId).Errorf("Can't get context from grpc request context")
		return ErrNotContainClientId
	}
  ....
}