foo_client_init.want

// internalFooClient is an interface that defines the methods availaible from Awesome Foo API.
type internalFooClient interface {
	Close() error
	setGoogleClientInfo(...string)
	Connection() *grpc.ClientConn
	Zip(context.Context, *mypackagepb.Bar, ...gax.CallOption) (*mypackagepb.Foo, error)
	ListLocations(context.Context, *locationpb.ListLocationsRequest, ...gax.CallOption) *LocationIterator
	GetLocation(context.Context, *locationpb.GetLocationRequest, ...gax.CallOption) (*locationpb.Location, error)
	SetIamPolicy(context.Context, *iampb.SetIamPolicyRequest, ...gax.CallOption) (*iampb.Policy, error)
	GetIamPolicy(context.Context, *iampb.GetIamPolicyRequest, ...gax.CallOption) (*iampb.Policy, error)
	TestIamPermissions(context.Context, *iampb.TestIamPermissionsRequest, ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error)
}

// FooClient is a client for interacting with Awesome Foo API.
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
//
// Foo service does stuff.
type FooClient struct {
	// The internal transport-dependent client.
	internalClient internalFooClient

	// The call options for this service.
	CallOptions *FooCallOptions

}

// Wrapper methods routed to the internal client.

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *FooClient) Close() error {
	return c.internalClient.Close()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *FooClient) setGoogleClientInfo(keyval ...string) {
	c.internalClient.setGoogleClientInfo(keyval...)
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *FooClient) Connection() *grpc.ClientConn {
	return c.internalClient.Connection()
}

// Zip does some stuff.
func (c *FooClient) Zip(ctx context.Context, req *mypackagepb.Bar, opts ...gax.CallOption) (*mypackagepb.Foo, error) {
	return c.internalClient.Zip(ctx, req, opts...)
}

func (c *FooClient) ListLocations(ctx context.Context, req *locationpb.ListLocationsRequest, opts ...gax.CallOption) *LocationIterator {
	return c.internalClient.ListLocations(ctx, req, opts...)
}

func (c *FooClient) GetLocation(ctx context.Context, req *locationpb.GetLocationRequest, opts ...gax.CallOption) (*locationpb.Location, error) {
	return c.internalClient.GetLocation(ctx, req, opts...)
}

func (c *FooClient) SetIamPolicy(ctx context.Context, req *iampb.SetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	return c.internalClient.SetIamPolicy(ctx, req, opts...)
}

func (c *FooClient) GetIamPolicy(ctx context.Context, req *iampb.GetIamPolicyRequest, opts ...gax.CallOption) (*iampb.Policy, error) {
	return c.internalClient.GetIamPolicy(ctx, req, opts...)
}

func (c *FooClient) TestIamPermissions(ctx context.Context, req *iampb.TestIamPermissionsRequest, opts ...gax.CallOption) (*iampb.TestIamPermissionsResponse, error) {
	return c.internalClient.TestIamPermissions(ctx, req, opts...)
}

// fooGRPCClient is a client for interacting with Awesome Foo API over gRPC transport.
//
// Methods, except Close, may be called concurrently. However, fields must not be modified concurrently with method calls.
type fooGRPCClient struct {
	// Connection pool of gRPC connections to the service.
	connPool gtransport.ConnPool

	// flag to opt out of default deadlines via GOOGLE_API_GO_EXPERIMENTAL_DISABLE_DEFAULT_DEADLINE
	disableDeadlines bool

	// Points back to the CallOptions field of the containing FooClient
	CallOptions **FooCallOptions

	// The gRPC API client.
	fooClient mypackagepb.FooClient

	iamPolicyClient iampb.IAMPolicyClient

	locationsClient locationpb.LocationsClient

	// The x-goog-* metadata to be sent with each request.
	xGoogMetadata metadata.MD
}

// NewFooClient creates a new foo client based on gRPC.
// The returned client must be Closed when it is done being used to clean up its underlying connections.
//
// Foo service does stuff.
func NewFooClient(ctx context.Context, opts ...option.ClientOption) (*FooClient, error) {
	clientOpts := defaultFooGRPCClientOptions()
	if newFooClientHook != nil {
		hookOpts, err := newFooClientHook(ctx, clientHookParams{})
		if err != nil {
			return nil, err
		}
		clientOpts = append(clientOpts, hookOpts...)
	}

	disableDeadlines, err := checkDisableDeadlines()
	if err != nil {
		return nil, err
	}

	connPool, err := gtransport.DialPool(ctx, append(clientOpts, opts...)...)
	if err != nil {
		return nil, err
	}
	client := FooClient{CallOptions: defaultFooCallOptions()}

	c := &fooGRPCClient{
		connPool:    connPool,
		disableDeadlines: disableDeadlines,
		fooClient: mypackagepb.NewFooClient(connPool),
		CallOptions: &client.CallOptions,
		iamPolicyClient: iampb.NewIAMPolicyClient(connPool),
		locationsClient: locationpb.NewLocationsClient(connPool),

	}
	c.setGoogleClientInfo()

	client.internalClient = c

	return &client, nil
}

// Connection returns a connection to the API service.
//
// Deprecated.
func (c *fooGRPCClient) Connection() *grpc.ClientConn {
	return c.connPool.Conn()
}

// setGoogleClientInfo sets the name and version of the application in
// the `x-goog-api-client` header passed on each request. Intended for
// use by Google-written clients.
func (c *fooGRPCClient) setGoogleClientInfo(keyval ...string) {
	kv := append([]string{"gl-go", versionGo()}, keyval...)
	kv = append(kv, "gapic", getVersionClient(), "gax", gax.Version, "grpc", grpc.Version)
	c.xGoogMetadata = metadata.Pairs("x-goog-api-client", gax.XGoogHeader(kv...))
}

// Close closes the connection to the API service. The user should invoke this when
// the client is no longer required.
func (c *fooGRPCClient) Close() error {
	return c.connPool.Close()
}