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46 lines
1.2 KiB
Markdown
46 lines
1.2 KiB
Markdown
NIP-63
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======
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Signed Filters
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--------------
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`draft` `optional`
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Event kind `33012` is used to represent one or more Nostr filters.
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The `d` tag represents the subscription id and the `filter` tag contains the JSON-stringified [NIP-01](01.md) filter.
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```js
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{
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"kind": 33012,
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"tags": [
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["d", "<subscription_id>"],
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["relay", "<relay>"],
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["filter", "<filter1>"],
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["filter", "<filter2>"],
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["expiration", "<unix timestamp>"],
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],
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"content": "",
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// ...other fields
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}
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```
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They are submitted to supporting relays via `SREQ` command, with the following format:
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```js
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["SREQ", <signed kind-33012>]
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```
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Supporting relays interpret the `filter` tags in the same way they do with `REQ` while automatically authenticating the signer.
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Relays MAY reject these filters based on `created_at`.
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An expiration tag MAY be used to limit the reuse of the filter.
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## Motivation
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The goal is to be able to support `AUTH` from multiple users in the same connection. As a side effect, this approach removes the `AUTH` round trip.
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Trusted proxies can use these event types to query relays on behalf of the user.
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Push Notification systems can use these events to download events from private relays and push them down to mobile phones. |