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apps/ecash-herald/src/utils.js
| // Copyright (c) 2023 The Bitcoin developers | // Copyright (c) 2023 The Bitcoin developers | ||||
| // Distributed under the MIT software license, see the accompanying | // Distributed under the MIT software license, see the accompanying | ||||
| // file COPYING or http://www.opensource.org/licenses/mit-license.php. | // file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||||
| 'use strict'; | 'use strict'; | ||||
| const axios = require('axios'); | const axios = require('axios'); | ||||
| const config = require('../config'); | const config = require('../config'); | ||||
| const BigNumber = require('bignumber.js'); | |||||
| module.exports = { | module.exports = { | ||||
| returnAddressPreview: function (cashAddress, sliceSize = 3) { | returnAddressPreview: function (cashAddress, sliceSize = 3) { | ||||
| const addressParts = cashAddress.split(':'); | const addressParts = cashAddress.split(':'); | ||||
| const unprefixedAddress = addressParts[addressParts.length - 1]; | const unprefixedAddress = addressParts[addressParts.length - 1]; | ||||
| return `${unprefixedAddress.slice( | return `${unprefixedAddress.slice( | ||||
| 0, | 0, | ||||
| sliceSize, | sliceSize, | ||||
| ▲ Show 20 Lines • Show All 81 Lines • ▼ Show 20 Lines | formatPrice: function (price, fiatCode) { | ||||
| // All decimal places for lower prices | // All decimal places for lower prices | ||||
| // For now, these will only be XEC prices | // For now, these will only be XEC prices | ||||
| return `${fiatSymbol}${price.toLocaleString('en-us', { | return `${fiatSymbol}${price.toLocaleString('en-us', { | ||||
| maximumFractionDigits: 8, | maximumFractionDigits: 8, | ||||
| })}`; | })}`; | ||||
| }, | }, | ||||
| jsonReplacer: function (key, value) { | jsonReplacer: function (key, value) { | ||||
| if (value instanceof Map) { | if (value instanceof Map) { | ||||
| const keyValueArray = Array.from(value.entries()); | |||||
| for (let i = 0; i < keyValueArray.length; i += 1) { | |||||
| const thisKeyValue = keyValueArray[i]; // [key, value] | |||||
| // If this is not an empty map | |||||
| if (typeof thisKeyValue !== 'undefined') { | |||||
| // Note: this value is an array of length 2 | |||||
| // [key, value] | |||||
| // Check if value is a big number | |||||
| if (thisKeyValue[1] instanceof BigNumber) { | |||||
| // Replace it | |||||
| thisKeyValue[1] = { | |||||
| // Note, if you use dataType: 'BigNumber', it will not work | |||||
| // This must be reserved | |||||
| // Use a term that is definitely not reserved but also recognizable as | |||||
| // "the dev means BigNumber here" | |||||
| dataType: 'BigNumberReplacer', | |||||
| value: thisKeyValue[1].toString(), | |||||
| }; | |||||
| } | |||||
| } | |||||
| } | |||||
| return { | return { | ||||
| dataType: 'Map', | dataType: 'Map', | ||||
| value: Array.from(value.entries()), | value: keyValueArray, | ||||
| }; | }; | ||||
| } else if (value instanceof Set) { | } else if (value instanceof Set) { | ||||
| return { | return { | ||||
| dataType: 'Set', | dataType: 'Set', | ||||
| value: Array.from(value.keys()), | value: Array.from(value.keys()), | ||||
| }; | }; | ||||
| } else { | } else { | ||||
| return value; | return value; | ||||
| } | } | ||||
| }, | }, | ||||
| jsonReviver: function (key, value) { | jsonReviver: function (key, value) { | ||||
| if (typeof value === 'object' && value !== null) { | if (typeof value === 'object' && value !== null) { | ||||
| if (value.dataType === 'Map') { | if (value.dataType === 'Map') { | ||||
| // If the map is not empty | |||||
| if (typeof value.value[0] !== 'undefined') { | |||||
Fabien: just use Map.size here | |||||
bytesofmanAuthorUnsubmitted Done Inline ActionsIn this function value.value is still not a map, it's an Array stored as part of an object with a key dataType === 'Map' So, map.size is not available bytesofman: In this function `value.value` is still not a map, it's an `Array` stored as part of an object… | |||||
| /* value.value is an array of keyValue arrays | |||||
| * e.g. | |||||
| * [ | |||||
| * [key1, value1], | |||||
| * [key2, value2], | |||||
| * [key3, value3], | |||||
| * ] | |||||
| */ | |||||
| // Iterate over each keyValue of the map | |||||
| for (let i = 0; i < value.value.length; i += 1) { | |||||
| const thisKeyValuePair = value.value[i]; // [key, value] | |||||
FabienUnsubmitted Not Done Inline ActionsMap has a foreach() method that can make the code a bit easier to read Fabien: Map has a foreach() method that can make the code a bit easier to read | |||||
bytesofmanAuthorUnsubmitted Done Inline ActionsIn this function, we are "reviving" a map that was stored as a special object in JSON. It's still an array. bytesofman: In this function, we are "reviving" a map that was stored as a special object in JSON. It's… | |||||
| let thisValue = thisKeyValuePair[1]; | |||||
| if ( | |||||
| thisValue && | |||||
| thisValue.dataType === 'BigNumberReplacer' | |||||
| ) { | |||||
| // If this is saved BigNumber, replace it with an actual BigNumber | |||||
| // note, you can't use thisValue = new BigNumber(thisValue.value) | |||||
| // Need to use this specific array entry | |||||
| value.value[i][1] = new BigNumber( | |||||
| value.value[i][1].value, | |||||
| ); | |||||
| } | |||||
| } | |||||
| } | |||||
| return new Map(value.value); | return new Map(value.value); | ||||
| } | } | ||||
| if (value.dataType === 'Set') { | if (value.dataType === 'Set') { | ||||
| return new Set(value.value); | return new Set(value.value); | ||||
| } | } | ||||
| } | } | ||||
| return value; | return value; | ||||
| }, | }, | ||||
| returnChronikTokenInfoPromise: function (chronik, tokenId, tokenInfoMap) { | |||||
FabienUnsubmitted Not Done Inline ActionsWhy isn't this method in chronik.js ? Fabien: Why isn't this method in chronik.js ? | |||||
bytesofmanAuthorUnsubmitted Done Inline Actionshm. I put it there the first time I made this feature. Since, I've started putting these "promise returner" methods in utils. It's not really doing any logic with chronik, it's just providing a promise. Some of these promise-returning functions were only used in unit tests, so I considered them a util it's a bit ambiguous either way. bytesofman: hm. I put it there the first time I made this feature. Since, I've started putting these… | |||||
| /* returnChronikTokenInfoPromise | |||||
| * | |||||
| * For best performance, we want to use Promise.all() to make several | |||||
| * chronik API calls at the same time | |||||
| * | |||||
| * This function returns a promise to ask chronik for token genesis info | |||||
| * and add this info to a map | |||||
| */ | |||||
| return new Promise((resolve, reject) => { | |||||
| chronik.tx(tokenId).then( | |||||
| txDetails => { | |||||
| console.assert( | |||||
| typeof txDetails.slpTxData.genesisInfo !== 'undefined', | |||||
| `Error: no genesisInfo object for ${tokenId}`, | |||||
| ); | |||||
| // Note: txDetails.slpTxData.genesisInfo only exists for token genesis txs | |||||
| const genesisInfo = txDetails.slpTxData.genesisInfo; | |||||
| tokenInfoMap.set(tokenId, genesisInfo); | |||||
| resolve(true); | |||||
| }, | |||||
| err => { | |||||
| reject(err); | |||||
| }, | |||||
| ); | |||||
| }); | |||||
| }, | |||||
| }; | }; | ||||
just use Map.size here