frostfs-sdk-go/client/example_container_put_test.go

package client_test

import (
	"context"
	"fmt"
	"time"

	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
	netmapv2 "github.com/nspcc-dev/neofs-api-go/v2/netmap"
	"github.com/nspcc-dev/neofs-sdk-go/client"
	"github.com/nspcc-dev/neofs-sdk-go/container"
	"github.com/nspcc-dev/neofs-sdk-go/container/acl"
	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
	neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa"
	"github.com/nspcc-dev/neofs-sdk-go/netmap"
	"github.com/nspcc-dev/neofs-sdk-go/user"
)

func ExampleClient_ContainerPut() {
	ctx := context.Background()
	var accountID user.ID

	// The account was taken from https://github.com/nspcc-dev/neofs-aio
	key, err := keys.NEP2Decrypt("6PYM8VdX2BSm7BSXKzV4Fz6S3R9cDLLWNrD9nMjxW352jEv3fsC8N3wNLY", "one", keys.NEP2ScryptParams())
	if err != nil {
		panic(err)
	}

	signer := neofsecdsa.SignerRFC6979(key.PrivateKey)

	// decode account from user's signer
	if err = user.IDFromSigner(&accountID, signer); err != nil {
		panic(err)
	}

	// prepare client
	var prmInit client.PrmInit
	prmInit.SetDefaultSigner(signer) // private signer for request signing
	prmInit.ResolveNeoFSFailures()   // enable erroneous status parsing

	var c client.Client
	c.Init(prmInit)

	// connect to NeoFS gateway
	var prmDial client.PrmDial
	prmDial.SetServerURI("grpc://localhost:8080") // endpoint address
	prmDial.SetTimeout(15 * time.Second)
	prmDial.SetStreamTimeout(15 * time.Second)

	if err = c.Dial(prmDial); err != nil {
		panic(fmt.Errorf("dial %v", err))
	}

	// describe new container
	cont := container.Container{}
	// set version and nonce
	cont.Init()
	cont.SetOwner(accountID)
	cont.SetBasicACL(acl.PublicRW)

	// set reserved attributes
	container.SetName(&cont, "name-1")
	container.SetCreationTime(&cont, time.Now().UTC())

	// init placement policy
	var containerID cid.ID
	var placementPolicyV2 netmapv2.PlacementPolicy
	var replicas []netmapv2.Replica

	replica := netmapv2.Replica{}
	replica.SetCount(1)
	replicas = append(replicas, replica)
	placementPolicyV2.SetReplicas(replicas)

	var placementPolicy netmap.PlacementPolicy
	if err = placementPolicy.ReadFromV2(placementPolicyV2); err != nil {
		panic(fmt.Errorf("ReadFromV2 %w", err))
	}

	placementPolicy.SetContainerBackupFactor(1)
	cont.SetPlacementPolicy(placementPolicy)

	// prepare command to create container
	var prmCon client.PrmContainerPut
	prmCon.SetContainer(cont)

	putResult, err := c.ContainerPut(ctx, prmCon)
	if err != nil {
		panic(fmt.Errorf("ContainerPut %w", err))
	}

	// containerID already exists
	containerID = putResult.ID()
	fmt.Println(containerID)
	// example output: 76wa5UNiT8gk8Q5rdCVCV4pKuZSmYsifh6g84BcL6Hqs

	// but container creation is async operation. We should wait some time or make polling to ensure container created
	// for simplifying we just wait
	<-time.After(2 * time.Second)

	// take our created container
	var cmdGet client.PrmContainerGet
	cmdGet.SetContainer(containerID)

	getResp, err := c.ContainerGet(ctx, cmdGet)
	if err != nil {
		panic(fmt.Errorf("ContainerGet %w", err))
	}

	jsonData, err := getResp.Container().MarshalJSON()
	if err != nil {
		panic(fmt.Errorf("MarshalJSON %w", err))
	}

	fmt.Println(string(jsonData))
	// example output: {"version":{"major":2,"minor":13},"ownerID":{"value":"Ne6eoiwn40vQFI/EEI4I906PUEiy8ZXKcw=="},"nonce":"rPVd/iw2RW6Q6d66FVnIqg==","basicACL":532660223,"attributes":[{"key":"Name","value":"name-1"},{"key":"Timestamp","value":"1681738627"}],"placementPolicy":{"replicas":[{"count":1,"selector":""}],"containerBackupFactor":1,"selectors":[],"filters":[],"subnetId":{"value":0}}}
}