Class LnurlPaymentsProcessor

src/payments-processors/lnurl-payments-processor.ts:12–68

const logger = createLogger('lnurl-payments-processor')

export class LnurlPaymentsProcessor implements IPaymentsProcessor {
  public constructor(
    private httpClient: AxiosInstance,
    private settings: Factory<Settings>,
  ) {}

  public async getInvoice(invoice: LnurlInvoice): Promise<GetInvoiceResponse> {
    logger('get invoice: %s', invoice.id)

    try {
      const response = await this.httpClient.get(invoice.verifyURL)

      return {
        id: invoice.id,
        confirmedAt: response.data.settled ? new Date() : undefined,
        status: response.data.settled ? InvoiceStatus.COMPLETED : InvoiceStatus.PENDING,
      }
    } catch (error) {
      logger.error(`Unable to get invoice ${invoice.id}. Reason:`, error)

      throw error
    }
  }

  public async createInvoice(request: CreateInvoiceRequest): Promise<any> {
    logger('create invoice: %o', request)
    const { amount: amountMsats, description, requestId } = request

    try {
      const response = await this.httpClient.get(
        `${this.settings().paymentsProcessors?.lnurl?.invoiceURL}/callback?amount=${amountMsats}&comment=${description}`,
      )

      const result = {
        id: randomUUID(),
        pubkey: requestId,
        bolt11: response.data.pr,
        amountRequested: amountMsats,
        description,
        unit: InvoiceUnit.MSATS,
        status: InvoiceStatus.PENDING,
        expiresAt: null,
        confirmedAt: null,
        createdAt: new Date(),
        verifyURL: response.data.verify,
      }

      logger('result: %o', result)

      return result
    } catch (error) {
      logger.error('Unable to request invoice. Reason:', error.message)

      throw error
    }
  }
}