experimental-accounting-api/tests/update-transaction.json

{
  "transaction": {
    "__type__": "Transaction",
    "date": "2013-01-01",
    "payee": "Kindly T. Donor",
    "postings": [
      {
        "__type__": "Posting",
        "account": "Income:Foo:Donation",
        "amount": {
          "__type__": "Amount",
          "amount": "-100",
          "symbol": "$"
        }
      },
      {
        "__type__": "Posting",
        "account": "Assets:Checking",
        "amount": {
          "__type__": "Amount",
          "amount": "100",
          "symbol": "$"
        }
      }
    ]
  }
}