Download Payment

Pay to a Download channel

Prerequisites

• Sirius SDK
• A text editor or IDE
• Have a Drive with enough Replicators
• Have a Download channel

Getting into some code

package main

import (
    "context"
    "fmt"
    "github.com/proximax-storage/go-xpx-chain-sdk/sdk"
)

const (
    // Sirius REST server
    baseUrl = "http://localhost:3000"
    // owner private Key
    priveaKey = "E8DAFF4218CC6E3185ABE506D084DCF387A1C9986F9ED9244D72110A7998FCCF"
    // hash of download transaction
    downloadTransactionHash = "A44F44D5B7FA91D8E6D1FD8FB51B21407DC94E7F0A6C7BBDBF82EC3547549C6F"
)

func main() {
    conf, err := sdk.NewConfig(context.Background(), []string{baseUrl})
    if err != nil {
        fmt.Printf("NewConfig returned error: %s", err)
        return
    }

    // Use the default http client
    client := sdk.NewClient(nil, conf)

    ownerAccount, err := client.NewAccountFromPrivateKey(priveaKey)
    if err != nil {
        panic(err)
    }

    // Download Channel id
    downloadChannelId, err := sdk.StringToHash(downloadTransactionHash)
    if err != nil {
        panic(err)
    }

    downloadPaymentTrx, err := Client.NewDownloadPaymentTransaction(
        sdk.NewDeadline(Deadline),
        downloadChannelId,
        sdk.StorageSize(100), // Storage size in Mb
        sdk.Amount(100), // Fee in XPX
    )
    if err != nil {
        panic(err)
    }

    signedTx, err := ownerAccount.Sign(downloadPaymentTrx)
    if err != nil {
        panic(err)
    }

    _, err = Client.Transaction.Announce(context.TODO(), signedTx)
    if err != nil {
        panic(err)
    }

    // you can subscribe on transaction with WebSocket
}