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Alaa Mohammad
Alaa Mohammad

Posted on

Create a custom function to generate a URL from given parameters (with TS support) 💻

We can achieve this using two options:

First option:

const urlGenerator = (
    baseUrl: string,
    pathName: string,
    searchParamsArray: Array<Record<string, string | number>>
  ) => {
    const validSearchParams = searchParamsArray.filter((param) => {
      const [_, value] = Object.entries(param)[0];
      // We can put here any condition on the value
      return value;
    });
    const sortedSearchParams = validSearchParams.sort((a, b) => {
      const [aKey] = Object.entries(a)[0];
      const [bKey] = Object.entries(b)[0];
      if (aKey > bKey) {
        return 1;
      } else if (aKey < bKey) {
        return -1;
      } else return 0;
    })
    const searchParams = sortedSearchParams
      .map((param) => {
        const [key, value] = Object.entries(param)[0];
        return `${encodeURIComponent(key)}=${encodeURIComponent(value)}`;
      })
      .join("&");
    const url = `${baseUrl}${pathName}?${searchParams}`;
    return url;
  };
  const resultUrl = urlGenerator("http://example.com", "/", [
    { width: 200 },
    { height: 250 },
    { locale: "en" },
    { toolbar_bg: "" },
    { interval: "3h" },
    { search: "react19" },
  ]);
  console.log("resultUrl=", resultUrl);

// resultUrl= http://example.com/?height=250&interval=3h&locale=en&search=react19&width=200
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Second option:
By using URLSearchParams as the following

const urlGenerator = (
    baseUrl: string,
    pathName: string,
    searchParamsArray: Array<Record<string, string>>
  ) => {
    const validSearchParams = searchParamsArray.filter((param) => {
      const [_, value] = Object.entries(param)[0];
      // We can put here any condition on the value
      return value;
    });
    const sortedSearchParams = validSearchParams.sort((a, b) => {
      const [aKey] = Object.entries(a)[0];
      const [bKey] = Object.entries(b)[0];
      if (aKey > bKey) {
        return 1;
      } else if (aKey < bKey) {
        return -1;
      } else return 0;
    }).map((param)=>Object.entries(param)[0]);
    const searchParams=new URLSearchParams(Object.fromEntries(sortedSearchParams))
    const url = `${baseUrl}${pathName}?${searchParams.toString()}`;
    return url;
  };
  const resultUrl = urlGenerator("http://example.com", "/", [
    { width: "200" },
    { height: "250" },
    { locale: "en" },
    { toolbar_bg: "" },
    { interval: "3h" },
    { search: "react19" },
  ]);
  console.log("resultUrl=", resultUrl); 
// resultUrl= http://example.com/?height=250&interval=3h&locale=en&search=react19&width=200

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