ListRoles()

This method returns a list of existing roles.

func (c *Client) ListRoles(ctx context.Context, opt ListRoleOption, callOpts ...grpc.CallOption) ([]string, error)

Request Parameters

Parameter	Description	Type
ctx	Context for the current call to work.	context.Context
opt	Optional parameters of the methods.	ListRoleOption
callOpts	Optional parameters for calling the methods.	grpc.CallOption

ListRoleOption

This is an interface type. The listRoleOption struct type implements this interface type.

You can use the NewListRoleOption() function to get the concrete implementation.

NewListRoleOption

The signature of NewListRoleOption() is as follows:

func NewListRoleOption() *listRoleOption

grpc.CallOption

This interface provided by the gRPC Go library allows you to specify additional options or configurations when making requests. For possible implementations of this interface, refer to this file.

Return

[]string

Example

import (
   "context"
   "google.golang.org/grpc"
   "github.com/milvus-io/milvus/v2/milvusclient"
)

opts := client.NewListRoleOption()

onFinish := func(ctx context.Context, err error) {
    if err != nil {
        fmt.Printf("gRPC call finished with error: %v\n", err)
    } else {
        fmt.Printf("gRPC call finished successfully")
    }
}

callOption := grpc.OnFinish(onFinish)

err := mclient.ListRoles(context.Background(), opts, callOption)