Optional pay-what-you-want / donation tickets #30

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opened 2026-06-20 06:57:54 +00:00 by padreug · 0 comments

padreug commented

2026-06-20 06:57:54 +00:00

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Follow-up from the free-ticket work.

Distinct from free tickets (price 0): a "pay-what-you-want" / donation ticket lets the buyer choose a positive amount at or above a minimum. This is the legitimate use of an amountless Lightning invoice — the buyer picks the amount (≥ 1 sat to route).

Shape

Event-level opt-in (e.g. donation price mode + optional min_amount).
api_ticket_create mints an amountless invoice (or an invoice for the buyer-supplied amount ≥ min) instead of the fixed price_per_ticket invoice.
On payment, the actual settled amount is recorded as sats_paid (source-of-truth from the settled payment, not derived).
Webapp buyer UI: amount input with the minimum enforced.

Notes

Do NOT conflate with free (price 0) — free short-circuits with no invoice; donation always produces a payable invoice.
Lower priority than free issuance + forfeit + abuse limits.

Follow-up from the free-ticket work. Distinct from free tickets (price 0): a "pay-what-you-want" / donation ticket lets the buyer choose a positive amount at or above a minimum. This is the legitimate use of an amountless Lightning invoice — the buyer picks the amount (≥ 1 sat to route). ## Shape - Event-level opt-in (e.g. `donation` price mode + optional `min_amount`). - `api_ticket_create` mints an amountless invoice (or an invoice for the buyer-supplied amount ≥ min) instead of the fixed `price_per_ticket` invoice. - On payment, the actual settled amount is recorded as `sats_paid` (source-of-truth from the settled payment, not derived). - Webapp buyer UI: amount input with the minimum enforced. ## Notes - Do NOT conflate with free (price 0) — free short-circuits with no invoice; donation always produces a payable invoice. - Lower priority than free issuance + forfeit + abuse limits.

padreug referenced this issue from a commit

2026-06-20 07:04:06 +00:00

feat: issue free tickets without minting an invoice

padreug referenced this issue

2026-06-20 07:04:25 +00:00

feat: issue free tickets without minting an invoice #31

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aiolabs/events#30

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