fix: correct Go module path and add default Request ID generation in SDK

sdk/go/cmd/command-example/main.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"log"
 
-	msb "github.com/keithang/microsandbox/sdk/go"
+	msb "github.com/microsandbox/microsandbox/sdk/go"
 )
 
 // basicExample demonstrates basic command execution with proper lifecycle management.

sdk/go/cmd/concurrent-example/main.go

@@ -8,7 +8,7 @@ import (
 	"sync"
 	"time"
 
-	msb "github.com/keithang/microsandbox/sdk/go"
+	msb "github.com/microsandbox/microsandbox/sdk/go"
 )
 
 // sequentialExample demonstrates basic sequential usage.

sdk/go/cmd/metrics-example/main.go

@@ -5,7 +5,7 @@ import (
 	"log"
 	"time"
 
-	msb "github.com/keithang/microsandbox/sdk/go"
+	msb "github.com/microsandbox/microsandbox/sdk/go"
 )
 
 // basicMetricsExample demonstrates how to get individual metrics for a sandbox.
@@ -297,4 +297,3 @@ func main() {
 
 	fmt.Println("\nAll examples completed!")
 }
-

sdk/go/cmd/node-example/main.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"log"
 
-	msb "github.com/keithang/microsandbox/sdk/go"
+	msb "github.com/microsandbox/microsandbox/sdk/go"
 )
 
 // basicExample demonstrates basic JavaScript code execution.

sdk/go/cmd/repl-example/main.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"log"
 
-	msb "github.com/keithang/microsandbox/sdk/go"
+	msb "github.com/microsandbox/microsandbox/sdk/go"
 )
 
 // contextManagerEquivalentExample demonstrates the Go equivalent of Python's context manager pattern.
@@ -325,4 +325,3 @@ func main() {
 
 	fmt.Println("\nAll examples completed!")
 }
-

sdk/go/config.go

@@ -1,5 +1,7 @@
 package msb
 
+import "github.com/microsandbox/microsandbox/sdk/go/uuid"
+
 type ReqIdProducer func() string
 
 type config struct {
@@ -16,3 +18,7 @@ const (
 	defaultNamespace    = "default"
 	defaultNameTemplate = "sandbox-%08x" // 8-char hex value (0-padded if shorter)
 )
+
+var defaultReqIdProducer ReqIdProducer = func() string {
+	return uuid.MustUUIDv4().String()
+}

sdk/go/go.mod

@@ -1,3 +1,3 @@
-module github.com/keithang/microsandbox/sdk/go
+module github.com/microsandbox/microsandbox/sdk/go
 
 go 1.24

sdk/go/option.go

@@ -96,6 +96,9 @@ func fillDefaultConfigs() Option {
 				panic(ErrAPIKeyMustBeSpecified)
 			}
 		}
+		if msb.cfg.reqIDPrd == nil {
+			msb.cfg.reqIDPrd = defaultReqIdProducer
+		}
 	}
 }
 

sdk/go/uuid/uuid.go

@@ -0,0 +1,175 @@
+package uuid
+
+import (
+	"crypto/rand"
+	"database/sql/driver"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+)
+
+type UUID [16]byte
+
+var Nil UUID
+
+// Errors
+var (
+	ErrInvalidUUIDFormat = errors.New("invalid UUID format")
+	ErrInvalidLength     = errors.New("invalid UUID length")
+)
+
+func NewUUIDv4() (UUID, error) {
+	var u UUID
+	_, err := io.ReadFull(rand.Reader, u[:])
+	if err != nil {
+		return Nil, err
+	}
+	u[6] = (u[6] & 0x0f) | 0x40
+	u[8] = (u[8] & 0x3f) | 0x80
+	return u, nil
+}
+
+func MustUUIDv4() UUID {
+	u, err := NewUUIDv4()
+	if err != nil {
+		panic(err)
+	}
+	return u
+}
+
+func (u UUID) String() string {
+	var buf [36]byte
+	encodeHex(buf[:], u)
+	return string(buf[:])
+}
+
+func Parse(s string) (UUID, error) {
+	var u UUID
+	if len(s) != 36 {
+		return Nil, ErrInvalidLength
+	}
+	if s[8] != '-' || s[13] != '-' || s[18] != '-' || s[23] != '-' {
+		return Nil, ErrInvalidUUIDFormat
+	}
+
+	for i, x := range []int{0, 2, 4, 6, 9, 11, 14, 16, 19, 21, 24, 26, 28, 30, 32, 34} {
+		v, ok := xtob(s[x], s[x+1])
+		if !ok {
+			return Nil, ErrInvalidUUIDFormat
+		}
+		u[i] = v
+	}
+	return u, nil
+}
+
+func MustParse(s string) UUID {
+	u, err := Parse(s)
+	if err != nil {
+		panic(err)
+	}
+	return u
+}
+
+func Validate(s string) error {
+	_, err := Parse(s)
+	return err
+}
+
+func (u UUID) MarshalText() ([]byte, error) {
+	var buf [36]byte
+	encodeHex(buf[:], u)
+	return buf[:], nil
+}
+
+func (u *UUID) UnmarshalText(data []byte) error {
+	id, err := Parse(string(data))
+	if err != nil {
+		return err
+	}
+	*u = id
+	return nil
+}
+
+func (u UUID) MarshalBinary() ([]byte, error) {
+	return u[:], nil
+}
+
+func (u *UUID) UnmarshalBinary(data []byte) error {
+	if len(data) != 16 {
+		return ErrInvalidLength
+	}
+	copy(u[:], data)
+	return nil
+}
+
+func (u UUID) Value() (driver.Value, error) {
+	return u.String(), nil
+}
+
+func (u *UUID) Scan(src interface{}) error {
+	switch src := src.(type) {
+	case UUID:
+		*u = src
+		return nil
+	case []byte:
+		if len(src) == 16 {
+			copy(u[:], src)
+			return nil
+		}
+		return u.UnmarshalText(src)
+	case string:
+		return u.UnmarshalText([]byte(src))
+	case nil:
+		*u = Nil
+		return nil
+	}
+	return fmt.Errorf("uuid: cannot convert %T to UUID", src)
+}
+
+func (u UUID) Version() int {
+	return int(u[6] >> 4)
+}
+
+func (u UUID) Variant() int {
+	return int((u[8] >> 5) ^ 0x04)
+}
+
+func encodeHex(dst []byte, u UUID) {
+	hex.Encode(dst[0:8], u[0:4])
+	dst[8] = '-'
+	hex.Encode(dst[9:13], u[4:6])
+	dst[13] = '-'
+	hex.Encode(dst[14:18], u[6:8])
+	dst[18] = '-'
+	hex.Encode(dst[19:23], u[8:10])
+	dst[23] = '-'
+	hex.Encode(dst[24:], u[10:])
+}
+
+func xtob(a, b byte) (byte, bool) {
+	var v byte
+	// High nibble
+	switch {
+	case '0' <= a && a <= '9':
+		v = (a - '0') << 4
+	case 'a' <= a && a <= 'f':
+		v = (a - 'a' + 10) << 4
+	case 'A' <= a && a <= 'F':
+		v = (a - 'A' + 10) << 4
+	default:
+		return 0, false
+	}
+	// Low nibble
+	switch {
+	case '0' <= b && b <= '9':
+		v |= (b - '0')
+	case 'a' <= b && b <= 'f':
+		v |= (b - 'a' + 10)
+	case 'A' <= b && b <= 'F':
+		v |= (b - 'A' + 10)
+	default:
+		return 0, false
+	}
+	return v, true
+}