Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 5 Nov 2026. What's built · Install 0.3.0
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ReferenceMoney and banking

LanguageValues and typesStandard typesMoney and banking

PaymentReference

On this page

The reference a payer sees on a UK bank payment: up to 18 characters.

Use it on Bacs and Faster Payments transfers, where banks allow only capitals, digits, spaces and . & / -. For your own invoice's number, use InvoiceNumber.

Shape

One value, held as text in one set form, with no parts: ACME & CO.

Example

example
PaymentReference("INV-2026/0042")

PaymentReference(raw) checks the text, and text that isn't one breaks the format rule.

text.parse(raw, as: PaymentReference) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as inv-42, REFERENCE-NUMBER-123 or INV42.

Good to know

  • It refuses lower case, so upper-case your text first.
  • == tells you whether two are the same. < and list.sort_by don't take it.

In JSON

A string, in a request, a response or json.write:

json
"INV-2026/0042""ACME & CO"

Details

Text form, storage, how it is shown, and operations

PaymentReference is in the group Money and banking, and has been in Jadpo since 0.1.0.

Text form

text.from writes one standard text form, the same form text.parse reads back: INV-2026/0042 and ACME & CO.

How it is stored

It is stored in one column named for the field, of type text. ACME & CO is stored as 'ACME & CO'.

How it is shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value Shown
INV-2026/0042 INV-2026/0042
ACME & CO ACME & CO

Operations

It also takes text.parse, text.from, text.format, json.read, json.write and ==. How every standard type behaves says how they work.

Markdown for agents: /docs/types/type-payment-reference.md.Built from Jadpo main at aee2e8f.