63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package session
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import (
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"context"
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"errors"
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"google.golang.org/grpc"
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)
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// Client wraps SessionServiceClient
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// with pre-defined configurations.
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type Client struct {
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*cfg
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client SessionServiceClient
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}
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// Option represents Client option.
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type Option func(*cfg)
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type cfg struct {
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callOpts []grpc.CallOption
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}
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// ErrNilSessionServiceClient is returned by functions that expect
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// a non-nil SessionServiceClient, but received nil.
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var ErrNilSessionServiceClient = errors.New("session gRPC client is nil")
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func defaultCfg() *cfg {
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return new(cfg)
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}
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// NewClient creates, initializes and returns a new Client instance.
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//
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// Options are applied one by one in order.
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func NewClient(c SessionServiceClient, opts ...Option) (*Client, error) {
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if c == nil {
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return nil, ErrNilSessionServiceClient
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}
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cfg := defaultCfg()
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for i := range opts {
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opts[i](cfg)
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}
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return &Client{
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cfg: cfg,
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client: c,
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}, nil
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}
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func (c *Client) Create(ctx context.Context, req *CreateRequest) (*CreateResponse, error) {
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return c.client.Create(ctx, req, c.callOpts...)
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}
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// WithCallOptions returns Option that configures
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// Client to attach call options to each rpc call.
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func WithCallOptions(opts []grpc.CallOption) Option {
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return func(c *cfg) {
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c.callOpts = opts
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}
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}
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