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39 lines
1001 B
TypeScript
39 lines
1001 B
TypeScript
import { ZapReceipt, ZapRequest } from 'types'
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/**
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* Gets value of description tag.
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* @param receipt - zap receipt.
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* @returns value of description tag.
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*/
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export const getDescription = (receipt: ZapReceipt) => {
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return receipt.tags.filter((tag) => tag[0] === 'description')[0][1]
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}
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/**
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* Gets value of amount tag.
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* @param request - zap receipt.
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* @returns value of amount tag.
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*/
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export const getAmount = (request: ZapRequest) => {
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return request.tags.filter((tag) => tag[0] === 'amount')[0][1]
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}
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/**
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* Gets zap amount.
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* @param receipt - zap receipt.
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* @returns zap amount
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*/
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export const getZapAmount = (receipt: ZapReceipt) => {
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const description = getDescription(receipt)
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let request: ZapRequest
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try {
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request = JSON.parse(description)
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} catch (err) {
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throw 'An error occurred in parsing description tag from zapReceipt'
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}
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// Zap amount is stored in mili sats, to get the zap amount we'll divide it by 1000
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return parseInt(getAmount(request)) / 1000
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}
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