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create( … )

To create a payload, a txjson XRPL transaction can be provided. Alternatively, a transaction formatted as HEX blob (string) can be provided in a txblob property. See the intro for more information about payloads. Take a look at the Developer Docs for more information about payloads.
The response of a Sdk.payload.create() operation, looks like this:
{
"uuid": "1289e9ae-7d5d-4d5f-b89c-18633112ce09",
"next": {
"always": "https://xumm.app/sign/1289e9ae-7d5d-4d5f-b89c-18633112ce09",
"no_push_msg_received": "https://xumm.app/sign/1289e9ae-7d5d-4d5f-b89c-18633112ce09/qr"
},
"refs": {
"qr_png": "https://xumm.app/sign/1289e9ae-7d5d-4d5f-b89c-18633112ce09_q.png",
"qr_matrix": "https://xumm.app/sign/1289e9ae-7d5d-4d5f-b89c-18633112ce09_q.json",
"qr_uri_quality_opts": ["m", "q", "h"],
"websocket_status": "wss://xumm.app/sign/1289e9ae-7d5d-4d5f-b89c-18633112ce09"
},
"pushed": true
}
The next.always URL is the URL to send the end user to, to scan a QR code or automatically open the XUMM app (if on mobile). If a user_token has been provided as part of the payload data provided to Sdk.payload.create(), you can see if the payload has been pushed to the end user. A button "didn't receive a push notification" could then take the user to the next.no_push_msg_received URL. The
Alternatively user routing / instruction flows can be custom built using the QR information provided in the refs object, and a subscription for live status updates (opened, signed, etc.) using a WebSocket client can be setup by connecting to the refs.websocket_status URL. Please note: this SDK already offers subscriptions. There's no need to setup your own WebSocket client: createAndSubscribe( … )

Object

async Sdk.payload.create (
payload: CreatePayload,
returnErrors: boolean = false
): Promise<CreatedPayload | null>