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86 lines
2.2 KiB
Markdown
86 lines
2.2 KiB
Markdown
NIP-75
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======
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Zap Goals
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---------
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`draft` `optional`
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This NIP defines an event for creating fundraising goals. Users can contribute funds towards the goal by zapping the goal event.
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## Nostr Event
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A `kind:9041` event is used.
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The `.content` contains a human-readable description of the goal.
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The following tags are defined as REQUIRED.
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- `amount` - target amount in milisats.
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- `relays` - a list of relays the zaps to this goal will be sent to and tallied from.
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Example event:
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```json
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{
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"kind": 9041,
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"tags": [
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["relays", "wss://alicerelay.example.com", "wss://bobrelay.example.com", ...],
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["amount", "210000"],
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],
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"content": "Nostrasia travel expenses",
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...
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```
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The following tags are OPTIONAL.
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- `closed_at` - timestamp for determining which zaps are included in the tally. Zap receipts published after the `closed_at` timestamp SHOULD NOT count towards the goal progress.
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- `image` - an image for the goal
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- `summary` - a brief description
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```json
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{
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"kind": 9041,
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"tags": [
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["relays", "wss://alicerelay.example.com", "wss://bobrelay.example.com", ...],
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["amount", "210000"],
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["closed_at", "<unix timestamp in seconds>"],
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["image", "<image URL>"],
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["summary", "<description of the goal>"],
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],
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"content": "Nostrasia travel expenses",
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...
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}
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```
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The goal MAY include an `r` or `a` tag linking to a URL or parameterized replaceable event.
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The goal MAY include multiple beneficiary pubkeys by specifying [`zap` tags](57.md#appendix-g-zap-tag-on-other-events).
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Parameterized replaceable events can link to a goal by using a `goal` tag specifying the event id and an optional relay hint.
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```json
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{
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...
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"kind": 3xxxx,
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"tags": [
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...
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["goal", "<event id>", "<Relay URL (optional)>"],
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],
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...
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}
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```
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## Client behavior
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Clients MAY display funding goals on user profiles.
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When zapping a goal event, clients MUST include the relays in the `relays` tag of the goal event in the zap request `relays` tag.
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When zapping a parameterized replaceable event with a `goal` tag, clients SHOULD tag the goal event id in the `e` tag of the zap request.
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## Use cases
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- Fundraising clients
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- Adding funding goals to events such as long form posts, badges or live streams
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