Create payment session

import { createClient } from '@spree/sdk'

const client = createClient({
  baseUrl: 'https://your-store.com',
  publishableKey: '<api-key>',
})

const session = await client.carts.paymentSessions.create('cart_abc123', {
  payment_method_id: 'pm_abc123',
}, {
  token: '<token>',
})

curl --request POST \
  --url http://{defaultHost}/api/v3/store/carts/{cart_id}/payment_sessions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-spree-api-key: <api-key>' \
  --data '
{
  "payment_method_id": "pm_abc123",
  "amount": "99.99",
  "external_data": {}
}
'

{
  "id": "ps_gbHJdmfrXB",
  "status": "pending",
  "currency": "USD",
  "external_id": "bogus_eb5c77e8a4ddf687caec9273",
  "external_data": {
    "client_secret": "bogus_secret_292f452459b9679c"
  },
  "customer_external_id": null,
  "expires_at": null,
  "amount": "110.0",
  "payment_method_id": "pm_UkLWZg9DAJ",
  "order_id": "or_UkLWZg9DAJ",
  "payment_method": {
    "id": "pm_UkLWZg9DAJ",
    "name": "Credit Card",
    "description": null,
    "type": "bogus",
    "session_required": true,
    "source_required": true
  }
}