GennadySht
/
HomeWork


			
				
					
						
						
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							<header>
    SWAPI Links
</header>

<body>
    <script>
        const improovedFetch = async (url) => {
            let lukeRes = await fetch(url);
            let luke = await lukeRes.json();
            let result = {};
            let retrievers = [];
            let valueArr = [];
            for (let key in luke) {
                let value = luke[key];
                let isArray = Array.isArray(value);
                if (typeof value == "string") {
                    valueArr.push(value);
                }
                else if (isArray) {
                    valueArr = value.filter(val => typeof val == "string");
                }
                valueArr = valueArr.filter(val => val.startsWith("https://swapi.dev/api/"));
                if (valueArr.length > 0) {
                    for (let urlStr of valueArr) {
                        retrievers.push(fetch(urlStr)
                            .then(res => res.json())
                            .then(
                                res => {
                                    let result =
                                    {
                                        key: key,
                                        val: res,
                                        isArray: isArray
                                    };
                                    return result;
                                }));
                    }
                }
                else {
                    result[key] = value;
                }
            }
            let results = [result, ...await Promise.all(retrievers)];
            results.reduce((a, v) => {
                let { key, val, isArray } = v;
                if (isArray) {
                    let aVal = a[key];
                    if (!aVal) 
                        a[key] = aVal = [];
                    aVal.push(val);
                }
                else {
                    a[key] = val;
                }
                return a;
            });
            return result;
        }
        improovedFetch('https://swapi.dev/api/people/20/').then(
            res => res
        )
        .then(
            res => console.log(JSON.stringify(res,null,4))
        );
    </script>
</body>