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NIP-47: Nostr Wallet Connect Extensions

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@ -36,6 +36,7 @@ The info event should be a replaceable event that is published by the **wallet s
a plaintext string with the supported commands, space-separated, eg. `pay_invoice get_balance`. Only the `pay_invoice` command is described in this NIP, but other commands might be defined in different NIPs.
Both the request and response events SHOULD contain one `p` tag, containing the public key of the **wallet service** if this is a request, and the public key of the **user** if this is a response. The response event SHOULD contain an `e` tag with the id of the request event it is responding to.
Optionally, a request can have an `expiration` tag that has a unix timestamp in seconds. If the request is received after this timestamp, it should be ignored.
The content of requests and responses is encrypted with [NIP04](https://github.com/nostr-protocol/nips/blob/master/04.md), and is a JSON-RPCish object with a semi-fixed structure:
@ -108,7 +109,8 @@ Request:
{
"method": "pay_invoice",
"params": {
"invoice": "lnbc50n1..." // bolt11 invoice
"invoice": "lnbc50n1...", // bolt11 invoice
"amount": 123, // invoice amount in msats, optional
}
}
```
@ -117,7 +119,7 @@ Response:
```jsonc
{
"result_type": "pay_invoice",
"result": {
"result": {
"preimage": "0123456789abcdef..." // preimage of the payment
}
}
@ -126,6 +128,278 @@ Response:
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `multi_pay_invoice`
Description: Requests payment of multiple invoices.
Request:
```jsonc
{
"method": "multi_pay_invoice",
"params": {
"invoices": [
{"id":"4da52c32a1", "invoice": "lnbc1...", "amount": 123}, // bolt11 invoice and amount in msats, amount is optional
{"id":"3da52c32a1", "invoice": "lnbc50n1..."},
],
}
}
```
Response:
For every invoice in the request, a separate response event is sent. To differentiate between the responses, each
response event contains an `d` tag with the id of the invoice it is responding to, if no id was given, then the
payment hash of the invoice should be used.
```jsonc
{
"result_type": "multi_pay_invoice",
"result": {
"preimage": "0123456789abcdef..." // preimage of the payment
}
}
```
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `pay_keysend`
Request:
```jsonc
{
"method": "pay_keysend",
"params": {
"amount": 123, // invoice amount in msats, required
"pubkey": "03...", // payee pubkey, required
"preimage": "0123456789abcdef...", // preimage of the payment, optional
"tlv_records: [ // tlv records, optional
{
"type": 5482373484, // tlv type
"value": "0123456789abcdef" // hex encoded tlv value
}
]
}
}
```
Response:
```jsonc
{
"result_type": "pay_keysend",
"result": {
"preimage": "0123456789abcdef...", // preimage of the payment
}
}
```
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `multi_pay_keysend`
Description: Requests multiple keysend payments.
Has an array of keysends, these follow the same semantics as `pay_keysend`, just done in a batch
Request:
```jsonc
{
"method": "multi_pay_keysend",
"params": {
"keysends": [
{"id": "4c5b24a351", pubkey": "03...", "amount": 123},
{"id": "3da52c32a1", "pubkey": "02...", "amount": 567, "preimage": "abc123..", "tlv_records": [{"type": 696969, "value": "77616c5f6872444873305242454d353736"}]},
],
}
}
```
Response:
For every keysend in the request, a separate response event is sent. To differentiate between the responses, each
response event contains an `d` tag with the id of the keysend it is responding to, if no id was given, then the
pubkey should be used.
```jsonc
{
"result_type": "multi_pay_keysend",
"result": {
"preimage": "0123456789abcdef..." // preimage of the payment
}
}
```
Errors:
- `PAYMENT_FAILED`: The payment failed. This may be due to a timeout, exhausting all routes, insufficient capacity or similar.
### `make_invoice`
Request:
```jsonc
{
"method": "make_invoice",
"params": {
"amount": 123, // value in msats
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"expiry": 213 // expiry in seconds from time invoice is created, optional
}
}
```
Response:
```jsonc
{
"result_type": "make_invoice",
"result": {
"type": "incoming", // "incoming" for invoices, "outgoing" for payments
"invoice": "string", // encoded invoice, optional
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"preimage": "string", // payment's preimage, optional if unpaid
"payment_hash": "string", // Payment hash for the payment
"amount": 123, // value in msats
"fees_paid": 123, // value in msats
"created_at": unixtimestamp, // invoice/payment creation time
"expires_at": unixtimestamp, // invoice expiration time, optional if not applicable
"metadata": {} // generic metadata that can be used to add things like zap/boostagram details for a payer name/comment/etc.
}
}
```
### `lookup_invoice`
Request:
```jsonc
{
"method": "lookup_invoice",
"params": {
"payment_hash": "31afdf1..", // payment hash of the invoice, one of payment_hash or invoice is required
"invoice": "lnbc50n1..." // invoice to lookup
}
}
```
Response:
```jsonc
{
"result_type": "lookup_invoice",
"result": {
"type": "incoming", // "incoming" for invoices, "outgoing" for payments
"invoice": "string", // encoded invoice, optional
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"preimage": "string", // payment's preimage, optional if unpaid
"payment_hash": "string", // Payment hash for the payment
"amount": 123, // value in msats
"fees_paid": 123, // value in msats
"created_at": unixtimestamp, // invoice/payment creation time
"expires_at": unixtimestamp, // invoice expiration time, optional if not applicable
"settled_at": unixtimestamp, // invoice/payment settlement time, optional if unpaid
"metadata": {} // generic metadata that can be used to add things like zap/boostagram details for a payer name/comment/etc.
}
}
```
Errors:
- `NOT_FOUND`: The invoice could not be found by the given parameters.
### `list_transactions`
Lists invoices and payments. If `type` is not specified, both invoices and payments are returned.
The `from` and `until` parameters are timestamps in seconds since epoch. If `from` is not specified, it defaults to 0.
If `until` is not specified, it defaults to the current time. Transactions are returned in descending order of creation
time.
Request:
```jsonc
{
"method": "list_transactions",
"params": {
"from": 1693876973, // starting timestamp in seconds since epoch (inclusive), optional
"until": 1703225078, // ending timestamp in seconds since epoch (inclusive), optional
"limit": 10, // maximum number of invoices to return, optional
"offset": 0, // offset of the first invoice to return, optional
"unpaid": true, // include unpaid invoices, optional, default false
"type": "incoming", // "incoming" for invoices, "outgoing" for payments, undefined for both
}
}
```
Response:
```jsonc
{
"result_type": "list_transactions",
"result": {
"transactions": [
{
"type": "incoming", // "incoming" for invoices, "outgoing" for payments
"invoice": "string", // encoded invoice, optional
"description": "string", // invoice's description, optional
"description_hash": "string", // invoice's description hash, optional
"preimage": "string", // payment's preimage, optional if unpaid
"payment_hash": "string", // Payment hash for the payment
"amount": 123, // value in msats
"fees_paid": 123, // value in msats
"created_at": unixtimestamp, // invoice/payment creation time
"expires_at": unixtimestamp, // invoice expiration time, optional if not applicable
"settled_at": unixtimestamp, // invoice/payment settlement time, optional if unpaid
"metadata": {} // generic metadata that can be used to add things like zap/boostagram details for a payer name/comment/etc.
}
],
},
}
```
### `get_balance`
Request:
```jsonc
{
"method": "get_balance",
"params": {
}
}
```
Response:
```jsonc
{
"result_type": "get_balance",
"result": {
"balance": 10000, // user's balance in msats
}
}
```
### `get_info`
Request:
```jsonc
{
"method": "get_info",
"params": {
}
}
```
Response:
```jsonc
{
"result_type": "get_info",
"result": {
"alias": "string",
"color": "hex string",
"pubkey": "hex string",
"network": "string", // mainnet, testnet, signet, or regtest
"block_height": 1,
"block_hash": "hex string",
"methods": ["pay_invoice", "get_balance", "make_invoice", "lookup_invoice", "list_transactions", "get_info"], // list of supported methods for this connection
}
}
```
## Example pay invoice flow
0. The user scans the QR code generated by the **wallet service** with their **client** application, they follow a `nostr+walletconnect:` deeplink or configure the connection details manually.