package main

import(
	"context"
	"os"
	polargo "github.com/polarsource/polar-go"
	"github.com/polarsource/polar-go/models/components"
	"github.com/polarsource/polar-go/models/operations"
	"log"
)

func main() {
    ctx := context.Background()

    s := polargo.New(
        polargo.WithSecurity(os.Getenv("POLAR_ACCESS_TOKEN")),
    )

    res, err := s.CustomerSessions.Create(ctx, operations.CreateCustomerSessionsCreateCustomerSessionCreateCustomerSessionCustomerExternalIDCreate(
        components.CustomerSessionCustomerExternalIDCreate{
            ExternalCustomerID: "<id>",
        },
    ))
    if err != nil {
        log.Fatal(err)
    }
    if res.CustomerSession != nil {
        // handle response
    }
}

{
  "created_at": "2023-11-07T05:31:56Z",
  "modified_at": "2023-11-07T05:31:56Z",
  "id": "<string>",
  "token": "<string>",
  "expires_at": "2023-11-07T05:31:56Z",
  "customer_portal_url": "<string>",
  "customer_id": "<string>",
  "customer": {
    "id": "992fae2a-2a17-4b7a-8d9e-e287cf90131b",
    "created_at": "2023-11-07T05:31:56Z",
    "modified_at": "2023-11-07T05:31:56Z",
    "metadata": {},
    "external_id": "usr_1337",
    "email": "customer@example.com",
    "email_verified": true,
    "name": "John Doe",
    "billing_address": {
      "line1": "<string>",
      "line2": "<string>",
      "postal_code": "<string>",
      "city": "<string>",
      "state": "<string>",
      "country": "US"
    },
    "tax_id": [
      "911144442",
      "us_ein"
    ],
    "organization_id": "1dbfc517-0bbf-4301-9ba8-555ca42b9737",
    "deleted_at": "2023-11-07T05:31:56Z",
    "avatar_url": "https://www.gravatar.com/avatar/xxx?d=404"
  }
}