diff --git a/builder/osc/chroot/builder.go b/builder/osc/chroot/builder.go
index 225dfc18f..3d6d0e391 100644
--- a/builder/osc/chroot/builder.go
+++ b/builder/osc/chroot/builder.go
@@ -8,9 +8,7 @@ package chroot
 
 import (
 	"context"
-	"crypto/tls"
 	"errors"
-	"net/http"
 	"runtime"
 
 	"github.com/hashicorp/hcl/v2/hcldec"
@@ -20,7 +18,6 @@ import (
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
 	"github.com/hashicorp/packer/template/interpolate"
-	"github.com/outscale/osc-go/oapi"
 )
 
 // The unique ID for this builder
@@ -193,19 +190,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 		return nil, errors.New("The outscale-chroot builder only works on Linux environments.")
 	}
 
-	clientConfig, err := b.config.Config()
-	if err != nil {
-		return nil, err
-	}
-
-	skipClient := &http.Client{
-		Transport: &http.Transport{
-			TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
-		},
-	}
-
-	oapiconn := oapi.NewClient(clientConfig, skipClient)
-
+	oscConn := b.config.NewOSCClient()
 	wrappedCommand := func(command string) (string, error) {
 		ctx := b.config.ctx
 		ctx.Data = &wrappedCommandTemplate{Command: command}
@@ -215,8 +200,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 	// Setup the state bag and initial state for the steps
 	state := new(multistep.BasicStateBag)
 	state.Put("config", &b.config)
-	state.Put("oapi", oapiconn)
-	state.Put("clientConfig", clientConfig)
+	state.Put("osc", oscConn)
 	state.Put("hook", hook)
 	state.Put("ui", ui)
 	state.Put("wrappedCommand", CommandWrapper(wrappedCommand))
@@ -266,7 +250,9 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 		&StepCopyFiles{},
 		&StepChrootProvision{},
 		&StepEarlyCleanup{},
-		&StepSnapshot{},
+		&StepSnapshot{
+			RawRegion: b.config.RawRegion,
+		},
 		&osccommon.StepDeregisterOMI{
 			AccessConfig:        &b.config.AccessConfig,
 			ForceDeregister:     b.config.OMIForceDeregister,
@@ -276,6 +262,7 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 		},
 		&StepCreateOMI{
 			RootVolumeSize: b.config.RootVolumeSize,
+			RawRegion:      b.config.RawRegion,
 		},
 		&osccommon.StepUpdateOMIAttributes{
 			AccountIds:         b.config.OMIAccountIDs,
@@ -307,7 +294,6 @@ func (b *Builder) Run(ctx context.Context, ui packer.Ui, hook packer.Hook) (pack
 	artifact := &osccommon.Artifact{
 		Omis:           state.Get("omis").(map[string]string),
 		BuilderIdValue: BuilderId,
-		Config:         clientConfig,
 		StateData:      map[string]interface{}{"generated_data": state.Get("generated_data")},
 	}
 
diff --git a/builder/osc/chroot/step_check_root_device.go b/builder/osc/chroot/step_check_root_device.go
index da73cb5e0..22ec04c29 100644
--- a/builder/osc/chroot/step_check_root_device.go
+++ b/builder/osc/chroot/step_check_root_device.go
@@ -6,14 +6,14 @@ import (
 
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
-	"github.com/outscale/osc-go/oapi"
+	"github.com/outscale/osc-sdk-go/osc"
 )
 
 // StepCheckRootDevice makes sure the root device on the OMI is BSU-backed.
 type StepCheckRootDevice struct{}
 
 func (s *StepCheckRootDevice) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
-	image := state.Get("source_image").(oapi.Image)
+	image := state.Get("source_image").(osc.Image)
 	ui := state.Get("ui").(packer.Ui)
 
 	ui.Say("Checking the root device on source OMI...")
diff --git a/builder/osc/chroot/step_create_omi.go b/builder/osc/chroot/step_create_omi.go
index 6d594d74d..b9f65ea28 100644
--- a/builder/osc/chroot/step_create_omi.go
+++ b/builder/osc/chroot/step_create_omi.go
@@ -4,42 +4,44 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/antihax/optional"
 	osccommon "github.com/hashicorp/packer/builder/osc/common"
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
-	"github.com/outscale/osc-go/oapi"
+	"github.com/outscale/osc-sdk-go/osc"
 )
 
 // StepCreateOMI creates the OMI.
 type StepCreateOMI struct {
 	RootVolumeSize int64
+	RawRegion      string
 }
 
 func (s *StepCreateOMI) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
 	config := state.Get("config").(*Config)
-	oapiconn := state.Get("oapi").(*oapi.Client)
+	osconn := state.Get("osc").(*osc.APIClient)
 	snapshotId := state.Get("snapshot_id").(string)
 	ui := state.Get("ui").(packer.Ui)
 
 	ui.Say("Creating the OMI...")
 
 	var (
-		registerOpts   oapi.CreateImageRequest
-		mappings       []oapi.BlockDeviceMappingImage
-		image          oapi.Image
+		registerOpts   osc.CreateImageRequest
+		mappings       []osc.BlockDeviceMappingImage
+		image          osc.Image
 		rootDeviceName string
 	)
 
 	if config.FromScratch {
-		mappings = config.OMIBlockDevices.BuildOMIDevices()
+		mappings = config.OMIBlockDevices.BuildOscOMIDevices()
 		rootDeviceName = config.RootDeviceName
 	} else {
-		image = state.Get("source_image").(oapi.Image)
+		image = state.Get("source_image").(osc.Image)
 		mappings = image.BlockDeviceMappings
 		rootDeviceName = image.RootDeviceName
 	}
 
-	newMappings := make([]oapi.BlockDeviceMappingImage, len(mappings))
+	newMappings := make([]osc.BlockDeviceMappingImage, len(mappings))
 	for i, device := range mappings {
 		newDevice := device
 
@@ -48,14 +50,14 @@ func (s *StepCreateOMI) Run(ctx context.Context, state multistep.StateBag) multi
 		newDevice.Bsu.VolumeSize = gibSize
 
 		if newDevice.DeviceName == rootDeviceName {
-			if newDevice.Bsu != (oapi.BsuToCreate{}) {
+			if newDevice.Bsu != (osc.BsuToCreate{}) {
 				newDevice.Bsu.SnapshotId = snapshotId
 			} else {
-				newDevice.Bsu = oapi.BsuToCreate{SnapshotId: snapshotId}
+				newDevice.Bsu = osc.BsuToCreate{SnapshotId: snapshotId}
 			}
 
-			if config.FromScratch || s.RootVolumeSize > newDevice.Bsu.VolumeSize {
-				newDevice.Bsu.VolumeSize = s.RootVolumeSize
+			if config.FromScratch || int32(s.RootVolumeSize) > newDevice.Bsu.VolumeSize {
+				newDevice.Bsu.VolumeSize = int32(s.RootVolumeSize)
 			}
 		}
 
@@ -63,7 +65,7 @@ func (s *StepCreateOMI) Run(ctx context.Context, state multistep.StateBag) multi
 	}
 
 	if config.FromScratch {
-		registerOpts = oapi.CreateImageRequest{
+		registerOpts = osc.CreateImageRequest{
 			ImageName:           config.OMIName,
 			Architecture:        "x86_64",
 			RootDeviceName:      rootDeviceName,
@@ -73,23 +75,25 @@ func (s *StepCreateOMI) Run(ctx context.Context, state multistep.StateBag) multi
 		registerOpts = buildRegisterOpts(config, image, newMappings)
 	}
 
-	registerResp, err := oapiconn.POST_CreateImage(registerOpts)
+	registerResp, _, err := osconn.ImageApi.CreateImage(context.Background(), &osc.CreateImageOpts{
+		CreateImageRequest: optional.NewInterface(registerOpts),
+	})
 	if err != nil {
 		state.Put("error", fmt.Errorf("Error registering OMI: %s", err))
 		ui.Error(state.Get("error").(error).Error())
 		return multistep.ActionHalt
 	}
 
-	imageID := registerResp.OK.Image.ImageId
+	imageID := registerResp.Image.ImageId
 
 	// Set the OMI ID in the state
 	ui.Say(fmt.Sprintf("OMI: %s", imageID))
 	omis := make(map[string]string)
-	omis[oapiconn.GetConfig().Region] = imageID
+	omis[s.RawRegion] = imageID
 	state.Put("omis", omis)
 
 	ui.Say("Waiting for OMI to become ready...")
-	if err := osccommon.WaitUntilImageAvailable(oapiconn, imageID); err != nil {
+	if err := osccommon.WaitUntilOscImageAvailable(osconn, imageID); err != nil {
 		err := fmt.Errorf("Error waiting for OMI: %s", err)
 		state.Put("error", err)
 		ui.Error(err.Error())
@@ -101,8 +105,8 @@ func (s *StepCreateOMI) Run(ctx context.Context, state multistep.StateBag) multi
 
 func (s *StepCreateOMI) Cleanup(state multistep.StateBag) {}
 
-func buildRegisterOpts(config *Config, image oapi.Image, mappings []oapi.BlockDeviceMappingImage) oapi.CreateImageRequest {
-	registerOpts := oapi.CreateImageRequest{
+func buildRegisterOpts(config *Config, image osc.Image, mappings []osc.BlockDeviceMappingImage) osc.CreateImageRequest {
+	registerOpts := osc.CreateImageRequest{
 		ImageName:           config.OMIName,
 		Architecture:        image.Architecture,
 		RootDeviceName:      image.RootDeviceName,
diff --git a/builder/osc/chroot/step_create_volume.go b/builder/osc/chroot/step_create_volume.go
index 9e1853d3e..cd6bfc499 100644
--- a/builder/osc/chroot/step_create_volume.go
+++ b/builder/osc/chroot/step_create_volume.go
@@ -6,11 +6,12 @@ import (
 	"fmt"
 	"log"
 
+	"github.com/antihax/optional"
 	osccommon "github.com/hashicorp/packer/builder/osc/common"
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
 	"github.com/hashicorp/packer/template/interpolate"
-	"github.com/outscale/osc-go/oapi"
+	"github.com/outscale/osc-sdk-go/osc"
 )
 
 // StepCreateVolume creates a new volume from the snapshot of the root
@@ -23,18 +24,19 @@ type StepCreateVolume struct {
 	RootVolumeSize int64
 	RootVolumeType string
 	RootVolumeTags osccommon.TagMap
+	RawRegion      string
 	Ctx            interpolate.Context
 }
 
 func (s *StepCreateVolume) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
 	config := state.Get("config").(*Config)
-	oapiconn := state.Get("oapi").(*oapi.Client)
-	vm := state.Get("vm").(oapi.Vm)
+	oscconn := state.Get("osc").(*osc.APIClient)
+	vm := state.Get("vm").(osc.Vm)
 	ui := state.Get("ui").(packer.Ui)
 
 	var err error
 
-	volTags, err := s.RootVolumeTags.OAPITags(s.Ctx, oapiconn.GetConfig().Region, state)
+	volTags, err := s.RootVolumeTags.OSCTags(s.Ctx, s.RawRegion, state)
 
 	if err != nil {
 		state.Put("error", err)
@@ -42,7 +44,7 @@ func (s *StepCreateVolume) Run(ctx context.Context, state multistep.StateBag) mu
 		return multistep.ActionHalt
 	}
 
-	var createVolume *oapi.CreateVolumeRequest
+	var createVolume *osc.CreateVolumeRequest
 	if config.FromScratch {
 		rootVolumeType := osccommon.VolumeTypeGp2
 		if s.RootVolumeType == "io1" {
@@ -53,17 +55,17 @@ func (s *StepCreateVolume) Run(ctx context.Context, state multistep.StateBag) mu
 		} else if s.RootVolumeType != "" {
 			rootVolumeType = s.RootVolumeType
 		}
-		createVolume = &oapi.CreateVolumeRequest{
+		createVolume = &osc.CreateVolumeRequest{
 			SubregionName: vm.Placement.SubregionName,
-			Size:          s.RootVolumeSize,
+			Size:          int32(s.RootVolumeSize),
 			VolumeType:    rootVolumeType,
 		}
 
 	} else {
 		// Determine the root device snapshot
-		image := state.Get("source_image").(oapi.Image)
+		image := state.Get("source_image").(osc.Image)
 		log.Printf("Searching for root device of the image (%s)", image.RootDeviceName)
-		var rootDevice *oapi.BlockDeviceMappingImage
+		var rootDevice *osc.BlockDeviceMappingImage
 		for _, device := range image.BlockDeviceMappings {
 			if device.DeviceName == image.RootDeviceName {
 				rootDevice = &device
@@ -82,7 +84,9 @@ func (s *StepCreateVolume) Run(ctx context.Context, state multistep.StateBag) mu
 
 	log.Printf("Create args: %+v", createVolume)
 
-	createVolumeResp, err := oapiconn.POST_CreateVolume(*createVolume)
+	createVolumeResp, _, err := oscconn.VolumeApi.CreateVolume(context.Background(), &osc.CreateVolumeOpts{
+		CreateVolumeRequest: optional.NewInterface(*createVolume),
+	})
 	if err != nil {
 		err := fmt.Errorf("Error creating root volume: %s", err)
 		state.Put("error", err)
@@ -91,12 +95,12 @@ func (s *StepCreateVolume) Run(ctx context.Context, state multistep.StateBag) mu
 	}
 
 	// Set the volume ID so we remember to delete it later
-	s.volumeId = createVolumeResp.OK.Volume.VolumeId
+	s.volumeId = createVolumeResp.Volume.VolumeId
 	log.Printf("Volume ID: %s", s.volumeId)
 
 	//Create tags for volume
 	if len(volTags) > 0 {
-		if err := osccommon.CreateTags(oapiconn, s.volumeId, ui, volTags); err != nil {
+		if err := osccommon.CreateOSCTags(oscconn, s.volumeId, ui, volTags); err != nil {
 			err := fmt.Errorf("Error creating tags for volume: %s", err)
 			state.Put("error", err)
 			ui.Error(err.Error())
@@ -105,7 +109,7 @@ func (s *StepCreateVolume) Run(ctx context.Context, state multistep.StateBag) mu
 	}
 
 	// Wait for the volume to become ready
-	err = osccommon.WaitUntilVolumeAvailable(oapiconn, s.volumeId)
+	err = osccommon.WaitUntilOscVolumeAvailable(oscconn, s.volumeId)
 	if err != nil {
 		err := fmt.Errorf("Error waiting for volume: %s", err)
 		state.Put("error", err)
@@ -122,32 +126,34 @@ func (s *StepCreateVolume) Cleanup(state multistep.StateBag) {
 		return
 	}
 
-	oapiconn := state.Get("oapi").(*oapi.Client)
+	oscconn := state.Get("osc").(*osc.APIClient)
 	ui := state.Get("ui").(packer.Ui)
 
 	ui.Say("Deleting the created BSU volume...")
-	_, err := oapiconn.POST_DeleteVolume(oapi.DeleteVolumeRequest{VolumeId: s.volumeId})
+	_, _, err := oscconn.VolumeApi.DeleteVolume(context.Background(), &osc.DeleteVolumeOpts{
+		DeleteVolumeRequest: optional.NewInterface(osc.DeleteVolumeRequest{VolumeId: s.volumeId}),
+	})
 	if err != nil {
 		ui.Error(fmt.Sprintf("Error deleting BSU volume: %s", err))
 	}
 }
 
-func (s *StepCreateVolume) buildCreateVolumeInput(suregionName string, rootDevice *oapi.BlockDeviceMappingImage) (*oapi.CreateVolumeRequest, error) {
+func (s *StepCreateVolume) buildCreateVolumeInput(suregionName string, rootDevice *osc.BlockDeviceMappingImage) (*osc.CreateVolumeRequest, error) {
 	if rootDevice == nil {
-		return nil, fmt.Errorf("Couldn't find root device!")
+		return nil, fmt.Errorf("Couldn't find root device")
 	}
 
 	//FIX: Temporary fix
 	gibSize := rootDevice.Bsu.VolumeSize / (1024 * 1024 * 1024)
-	createVolumeInput := &oapi.CreateVolumeRequest{
+	createVolumeInput := &osc.CreateVolumeRequest{
 		SubregionName: suregionName,
 		Size:          gibSize,
 		SnapshotId:    rootDevice.Bsu.SnapshotId,
 		VolumeType:    rootDevice.Bsu.VolumeType,
 		Iops:          rootDevice.Bsu.Iops,
 	}
-	if s.RootVolumeSize > rootDevice.Bsu.VolumeSize {
-		createVolumeInput.Size = s.RootVolumeSize
+	if int32(s.RootVolumeSize) > rootDevice.Bsu.VolumeSize {
+		createVolumeInput.Size = int32(s.RootVolumeSize)
 	}
 
 	if s.RootVolumeType == "" || s.RootVolumeType == rootDevice.Bsu.VolumeType {
diff --git a/builder/osc/chroot/step_link_volume.go b/builder/osc/chroot/step_link_volume.go
index f30b7803c..7e51caebd 100644
--- a/builder/osc/chroot/step_link_volume.go
+++ b/builder/osc/chroot/step_link_volume.go
@@ -4,10 +4,11 @@ import (
 	"context"
 	"fmt"
 
+	"github.com/antihax/optional"
 	osccommon "github.com/hashicorp/packer/builder/osc/common"
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
-	"github.com/outscale/osc-go/oapi"
+	"github.com/outscale/osc-sdk-go/osc"
 )
 
 // StepLinkVolume attaches the previously created volume to an
@@ -22,9 +23,9 @@ type StepLinkVolume struct {
 }
 
 func (s *StepLinkVolume) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
-	oapiconn := state.Get("oapi").(*oapi.Client)
+	oscconn := state.Get("osc").(*osc.APIClient)
 	device := state.Get("device").(string)
-	vm := state.Get("vm").(oapi.Vm)
+	vm := state.Get("vm").(osc.Vm)
 	ui := state.Get("ui").(packer.Ui)
 	volumeId := state.Get("volume_id").(string)
 
@@ -33,10 +34,12 @@ func (s *StepLinkVolume) Run(ctx context.Context, state multistep.StateBag) mult
 	linkVolume := device
 
 	ui.Say(fmt.Sprintf("Attaching the root volume to %s", linkVolume))
-	_, err := oapiconn.POST_LinkVolume(oapi.LinkVolumeRequest{
-		VmId:       vm.VmId,
-		VolumeId:   volumeId,
-		DeviceName: linkVolume,
+	_, _, err := oscconn.VolumeApi.LinkVolume(context.Background(), &osc.LinkVolumeOpts{
+		LinkVolumeRequest: optional.NewInterface(osc.LinkVolumeRequest{
+			VmId:       vm.VmId,
+			VolumeId:   volumeId,
+			DeviceName: linkVolume,
+		}),
 	})
 
 	if err != nil {
@@ -51,7 +54,7 @@ func (s *StepLinkVolume) Run(ctx context.Context, state multistep.StateBag) mult
 	s.volumeId = volumeId
 
 	// Wait for the volume to become attached
-	err = osccommon.WaitUntilVolumeIsLinked(oapiconn, s.volumeId)
+	err = osccommon.WaitUntilOscVolumeIsLinked(oscconn, s.volumeId)
 	if err != nil {
 		err := fmt.Errorf("Error waiting for volume: %s", err)
 		state.Put("error", err)
@@ -75,11 +78,14 @@ func (s *StepLinkVolume) CleanupFunc(state multistep.StateBag) error {
 		return nil
 	}
 
-	oapiconn := state.Get("oapi").(*oapi.Client)
+	oscconn := state.Get("osc").(*osc.APIClient)
 	ui := state.Get("ui").(packer.Ui)
 
 	ui.Say("Detaching BSU volume...")
-	_, err := oapiconn.POST_UnlinkVolume(oapi.UnlinkVolumeRequest{VolumeId: s.volumeId})
+	_, _, err := oscconn.VolumeApi.UnlinkVolume(context.Background(), &osc.UnlinkVolumeOpts{
+		UnlinkVolumeRequest: optional.NewInterface(osc.UnlinkVolumeRequest{VolumeId: s.volumeId}),
+	})
+
 	if err != nil {
 		return fmt.Errorf("Error detaching BSU volume: %s", err)
 	}
@@ -87,7 +93,7 @@ func (s *StepLinkVolume) CleanupFunc(state multistep.StateBag) error {
 	s.attached = false
 
 	// Wait for the volume to detach
-	err = osccommon.WaitUntilVolumeIsUnlinked(oapiconn, s.volumeId)
+	err = osccommon.WaitUntilOscVolumeIsUnlinked(oscconn, s.volumeId)
 	if err != nil {
 		return fmt.Errorf("Error waiting for volume: %s", err)
 	}
diff --git a/builder/osc/chroot/step_snapshot.go b/builder/osc/chroot/step_snapshot.go
index 3df493728..cb9ee6add 100644
--- a/builder/osc/chroot/step_snapshot.go
+++ b/builder/osc/chroot/step_snapshot.go
@@ -5,10 +5,11 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/antihax/optional"
 	osccommon "github.com/hashicorp/packer/builder/osc/common"
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
-	"github.com/outscale/osc-go/oapi"
+	"github.com/outscale/osc-sdk-go/osc"
 )
 
 // StepSnapshot creates a snapshot of the created volume.
@@ -17,19 +18,22 @@ import (
 //   snapshot_id string - ID of the created snapshot
 type StepSnapshot struct {
 	snapshotId string
+	RawRegion  string
 }
 
 func (s *StepSnapshot) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
-	oapiconn := state.Get("oapi").(*oapi.Client)
+	oscconn := state.Get("osc").(*osc.APIClient)
 	ui := state.Get("ui").(packer.Ui)
 	volumeId := state.Get("volume_id").(string)
 
 	ui.Say("Creating snapshot...")
 	description := fmt.Sprintf("Packer: %s", time.Now().String())
 
-	createSnapResp, err := oapiconn.POST_CreateSnapshot(oapi.CreateSnapshotRequest{
-		VolumeId:    volumeId,
-		Description: description,
+	createSnapResp, _, err := oscconn.SnapshotApi.CreateSnapshot(context.Background(), &osc.CreateSnapshotOpts{
+		CreateSnapshotRequest: optional.NewInterface(osc.CreateSnapshotRequest{
+			VolumeId:    volumeId,
+			Description: description,
+		}),
 	})
 	if err != nil {
 		err := fmt.Errorf("Error creating snapshot: %s", err)
@@ -39,11 +43,11 @@ func (s *StepSnapshot) Run(ctx context.Context, state multistep.StateBag) multis
 	}
 
 	// Set the snapshot ID so we can delete it later
-	s.snapshotId = createSnapResp.OK.Snapshot.SnapshotId
+	s.snapshotId = createSnapResp.Snapshot.SnapshotId
 	ui.Message(fmt.Sprintf("Snapshot ID: %s", s.snapshotId))
 
 	// Wait for the snapshot to be ready
-	err = osccommon.WaitUntilSnapshotDone(oapiconn, s.snapshotId)
+	err = osccommon.WaitUntilOscSnapshotDone(oscconn, s.snapshotId)
 	if err != nil {
 		err := fmt.Errorf("Error waiting for snapshot: %s", err)
 		state.Put("error", err)
@@ -54,7 +58,7 @@ func (s *StepSnapshot) Run(ctx context.Context, state multistep.StateBag) multis
 	state.Put("snapshot_id", s.snapshotId)
 
 	snapshots := map[string][]string{
-		oapiconn.GetConfig().Region: {s.snapshotId},
+		s.RawRegion: {s.snapshotId},
 	}
 	state.Put("snapshots", snapshots)
 
@@ -70,10 +74,12 @@ func (s *StepSnapshot) Cleanup(state multistep.StateBag) {
 	_, halted := state.GetOk(multistep.StateHalted)
 
 	if cancelled || halted {
-		oapiconn := state.Get("oapi").(*oapi.Client)
+		oscconn := state.Get("osc").(*osc.APIClient)
 		ui := state.Get("ui").(packer.Ui)
 		ui.Say("Removing snapshot since we cancelled or halted...")
-		_, err := oapiconn.POST_DeleteSnapshot(oapi.DeleteSnapshotRequest{SnapshotId: s.snapshotId})
+		_, _, err := oscconn.SnapshotApi.DeleteSnapshot(context.Background(), &osc.DeleteSnapshotOpts{
+			DeleteSnapshotRequest: optional.NewInterface(osc.DeleteSnapshotRequest{SnapshotId: s.snapshotId}),
+		})
 		if err != nil {
 			ui.Error(fmt.Sprintf("Error: %s", err))
 		}
diff --git a/builder/osc/chroot/step_vm_info.go b/builder/osc/chroot/step_vm_info.go
index 0104e2f48..3662ad9a8 100644
--- a/builder/osc/chroot/step_vm_info.go
+++ b/builder/osc/chroot/step_vm_info.go
@@ -5,16 +5,17 @@ import (
 	"fmt"
 	"log"
 
+	"github.com/antihax/optional"
 	"github.com/hashicorp/packer/helper/multistep"
 	"github.com/hashicorp/packer/packer"
-	"github.com/outscale/osc-go/oapi"
+	"github.com/outscale/osc-sdk-go/osc"
 )
 
 // StepVmInfo verifies that this builder is running on an Outscale vm.
 type StepVmInfo struct{}
 
 func (s *StepVmInfo) Run(_ context.Context, state multistep.StateBag) multistep.StepAction {
-	oapiconn := state.Get("oapi").(*oapi.Client)
+	oscconn := state.Get("osc").(*osc.APIClient)
 	//session := state.Get("clientConfig").(*session.Session)
 	ui := state.Get("ui").(packer.Ui)
 
@@ -36,9 +37,11 @@ func (s *StepVmInfo) Run(_ context.Context, state multistep.StateBag) multistep.
 	log.Printf("[Debug] VmID got: %s", string(vmID))
 
 	// Query the entire vm metadata
-	resp, err := oapiconn.POST_ReadVms(oapi.ReadVmsRequest{Filters: oapi.FiltersVm{
-		VmIds: []string{string(vmID)},
-	}})
+	resp, _, err := oscconn.VmApi.ReadVms(context.Background(), &osc.ReadVmsOpts{
+		ReadVmsRequest: optional.NewInterface(osc.ReadVmsRequest{Filters: osc.FiltersVm{
+			VmIds: []string{string(vmID)},
+		}}),
+	})
 	if err != nil {
 		err := fmt.Errorf("Error getting vm data: %s", err)
 		state.Put("error", err)
@@ -46,10 +49,10 @@ func (s *StepVmInfo) Run(_ context.Context, state multistep.StateBag) multistep.
 		return multistep.ActionHalt
 	}
 
-	vmsResp := resp.OK
+	vmsResp := resp
 
 	if len(vmsResp.Vms) == 0 {
-		err := fmt.Errorf("Error getting vm data: no vm found.")
+		err := fmt.Errorf("Error getting vm data: no vm found")
 		state.Put("error", err)
 		ui.Error(err.Error())
 		return multistep.ActionHalt