package main

import (
    "fmt"
    "time"
    goipam "github.com/metal-stack/go-ipam"
)

func main() {
    // create a ipamer with in memory storage
    ipam := goipam.New()


    bgCtx := context.Background()
    // Optional with Namespace
    ctx := goipam.NewContextWithNamespace(bgCtx, "tenant-a")

    ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
    defer cancel()
    prefix, err := ipam.NewPrefix(ctx, "192.168.0.0/24")
    if err != nil {
        panic(err)
    }

    ip, err := ipam.AcquireIP(ctx, prefix.Cidr)
    if err != nil {
        panic(err)
    }
    fmt.Printf("got IP: %s\n", ip.IP)

    prefix, err = ipam.ReleaseIP(ctx, ip)
    if err != nil {
        panic(err)
    }
    fmt.Printf("IP: %s released.\n", ip.IP)

    // Now a IPv6 Super Prefix with Child Prefixes
    prefix, err = ipam.NewPrefix(ctx, "2001:aabb::/48")
    if err != nil {
        panic(err)
    }
    cp1, err := ipam.AcquireChildPrefix(ctx, prefix.Cidr, 64)
    if err != nil {
        panic(err)
    }
    fmt.Printf("got Prefix: %s\n", cp1)
    cp2, err := ipam.AcquireChildPrefix(ctx, prefix.Cidr, 72)
    if err != nil {
        panic(err)
    }
    fmt.Printf("got Prefix: %s\n", cp2)
    ip21, err := ipam.AcquireIP(ctx, cp2.Cidr)
    if err != nil {
        panic(err)
    }
    fmt.Printf("got IP: %s\n", ip21.IP)
}

package main

import (
    "http"

    "github.com/bufbuild/connect-go"
    v1 "github.com/metal-stack/go-ipam/api/v1"
    "github.com/metal-stack/go-ipam/api/v1/apiv1connect"
)
func main() {

    c := apiv1connect.NewIpamServiceClient(
            http.DefaultClient,
            "http://localhost:9090",
            connect.WithGRPC(),
    )

    bgCtx := context.Background()

    // Optional with Namespace
    ctx := goipam.NewContextWithNamespace(bgCtx, "tenant-a")

    result, err := c.CreatePrefix(ctx, connect.NewRequest(&v1.CreatePrefixRequest{Cidr: "192.168.0.0/16",}))
    if err != nil {
        panic(err)
    }
    fmt.Println("Prefix:%q created", result.Msg.GetPrefix().GetCidr())
}