react: typescript system params method optimize

import * as _ from "lodash";
import paramCache from "../common/param-cache"
import RequestPromise from "./axios-service/RequestPromise";

export const fetchSystemParams = () => {
    return RequestPromise({ url: ‘/api/system-parameters‘ })
}
const parameters = paramCache.getItem("system-params")

export const getParam = async (types: string[]) => {
    if (parameters) {
        return mergeSpecailParams(parameters, types)
    } else {
        return fetchSystemParams().then(({ data }) => {
            paramCache.setItem("system-params", data)
            return mergeSpecailParams(data, types)
        })
    }
}

export const getParamKeys = async (type: string) => {
    if (parameters) {
        return setParamKeys(parameters)
    } else {
        return fetchSystemParams().then(({ data }) => {
            paramCache.setItem("system-params", data)
            return setParamKeys(data[type])
        })
    }
}

const setParamKeys = (params: any) => {
    const paramKeys: string[] = [];
    for (const key in params) {
        if (params.hasOwnProperty(key)) {
            paramKeys.push(key)
        }
    }
    return paramKeys
}

export const getParamOptions = async (types: string[]) => {
    if (parameters) {
        return setParamOptions(mergeSpecailParams(parameters, types))
    } else {
        return fetchSystemParams().then(({ data }) => {
            paramCache.setItem("system-params", data)
            return setParamOptions(mergeSpecailParams(data, types))
        })
    }
}

const setParamOptions = (params: any) => {
    const paramOptions: any[] = [];
    _.forIn(params, (value, key) => {
        paramOptions.push({value: key, text: value})
    })
    return paramOptions;

}

const mergeSpecailParams = (parameters: any, types: string[]) => {
    let targetParam = {};
    _.forIn(parameters, (value, key) => {
        if (types.includes(key)) {
            targetParam = { ...targetParam, ...value }
        }
    })
    return targetParam
}

原文地址：https://www.cnblogs.com/Nyan-Workflow-FC/p/11274511.html