mirror of https://github.com/linka-cloud/grpc.git
67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
package client
|
|
|
|
import (
|
|
"context"
|
|
"crypto/tls"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"google.golang.org/grpc"
|
|
"google.golang.org/grpc/credentials"
|
|
"google.golang.org/grpc/resolver"
|
|
|
|
"go.linka.cloud/grpc/registry/noop"
|
|
)
|
|
|
|
type Client interface {
|
|
grpc.ClientConnInterface
|
|
}
|
|
|
|
func New(opts ...Option) (Client, error) {
|
|
c := &client{opts: &options{}}
|
|
for _, o := range opts {
|
|
o(c.opts)
|
|
}
|
|
if c.opts.registry == nil {
|
|
c.opts.registry = noop.New()
|
|
}
|
|
resolver.Register(c.opts.registry.ResolverBuilder())
|
|
c.pool = newPool(DefaultPoolSize, DefaultPoolTTL, DefaultPoolMaxIdle, DefaultPoolMaxStreams)
|
|
if c.opts.tlsConfig == nil && c.opts.Secure() {
|
|
c.opts.tlsConfig = &tls.Config{InsecureSkipVerify: true}
|
|
}
|
|
if c.opts.tlsConfig != nil {
|
|
c.opts.dialOptions = append(c.opts.dialOptions, grpc.WithTransportCredentials(credentials.NewTLS(c.opts.tlsConfig)))
|
|
}
|
|
if !c.opts.secure {
|
|
c.opts.dialOptions = append(c.opts.dialOptions, grpc.WithInsecure())
|
|
}
|
|
c.addr = fmt.Sprintf("%s:///%s", c.opts.registry.String(), c.opts.name)
|
|
if c.opts.version != "" {
|
|
c.addr = c.addr + ":" + strings.TrimSpace(c.opts.version)
|
|
}
|
|
return c, nil
|
|
}
|
|
|
|
type client struct {
|
|
addr string
|
|
pool *pool
|
|
opts *options
|
|
}
|
|
|
|
func (c *client) Invoke(ctx context.Context, method string, args interface{}, reply interface{}, opts ...grpc.CallOption) error {
|
|
pc, err := c.pool.getConn(c.addr, c.opts.dialOptions...)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return pc.Invoke(ctx, method, args, reply, opts...)
|
|
}
|
|
|
|
func (c *client) NewStream(ctx context.Context, desc *grpc.StreamDesc, method string, opts ...grpc.CallOption) (grpc.ClientStream, error) {
|
|
pc, err := c.pool.getConn(c.addr, c.opts.dialOptions...)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return pc.NewStream(ctx, desc, method, opts...)
|
|
}
|