'use strict'
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import * as utils from '../utils'
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function encode(val) {
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return encodeURIComponent(val)
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.replace(/%40/gi, '@')
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.replace(/%3A/gi, ':')
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.replace(/%24/g, '$')
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.replace(/%2C/gi, ',')
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.replace(/%20/g, '+')
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.replace(/%5B/gi, '[')
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.replace(/%5D/gi, ']')
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}
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/**
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* Build a URL by appending params to the end
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*
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* @param {string} url The base of the url (e.g., http://www.google.com)
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* @param {object} [params] The params to be appended
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* @returns {string} The formatted url
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*/
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export default function buildURL(url, params) {
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/* eslint no-param-reassign:0 */
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if (!params) {
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return url
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}
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let serializedParams
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if (utils.isURLSearchParams(params)) {
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serializedParams = params.toString()
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} else {
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const parts = []
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utils.forEach(params, (val, key) => {
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if (val === null || typeof val === 'undefined') {
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return
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}
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if (utils.isArray(val)) {
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key = `${key}[]`
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} else {
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val = [val]
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}
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utils.forEach(val, (v) => {
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if (utils.isDate(v)) {
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v = v.toISOString()
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} else if (utils.isObject(v)) {
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v = JSON.stringify(v)
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}
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parts.push(`${encode(key)}=${encode(v)}`)
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})
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})
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serializedParams = parts.join('&')
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}
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if (serializedParams) {
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const hashmarkIndex = url.indexOf('#')
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if (hashmarkIndex !== -1) {
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url = url.slice(0, hashmarkIndex)
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}
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url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams
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}
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return url
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}
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