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utils.ts
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utils.ts
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const getByPath = require('lodash/get');
const setByPath = require('lodash/set');
import BigNumber from 'bignumber.js';
/**
* Casts object/array items to BigNumber
* keys support lodash path notation
* @param data input object or array
* @param keys keys for processing or all items if not defined
*
* @see https://lodash.com/docs/#get
*
*/
export function castToBigNumber(data: any, keys?: any): object {
const returnArray: boolean = Array.isArray(data);
if (typeof keys === 'undefined') {
keys = Object.keys(data);
}
let response: any = returnArray ? [] : {};
keys.forEach((key: any) => {
const item = getByPath(data, key);
let res: any;
if (typeof item === 'undefined') {
return;
}
if (Array.isArray(item)) {
res = castToBigNumber(item);
setByPath(response, key, res);
return;
}
res = new BigNumber(item);
setByPath(response, key, res);
});
return response;
}
/**
* Casts object/array BigNumber items to strings for readability
* @param data input object or array
* @param keys keys for processing or all items if not defined
*
*/
export function castToString(data: any, keys?: any): object {
const returnArray: boolean = Array.isArray(data);
if (typeof keys === 'undefined') {
keys = Object.keys(data);
}
let response: any = returnArray ? [] : {};
keys.forEach((key: any) => {
const item = data[key];
if (typeof item === 'undefined') {
return;
}
if (Array.isArray(item)) {
response[key] = castToString(item);
return;
}
if (!(item instanceof BigNumber)) {
response[key] = item;
return;
}
response[key] = item.toString();
});
return response;
}