pr-fetch/dist/index.js

基于fetch额外封装了检查请求、中止请求。

class c {
  #s = {
    timeout: 5 * 1e3,
    check: !1
  };
  #t;
  constructor(t = {}) {
    this.#s = { ...this.#s, ...t };
  }
  /**
   *
   * @param input string | URL | Request
   * @param init RequestInit
   */
  check = (t, o) => new Promise(async (a, s) => {
    this.stop(), this.#t = new AbortController();
    const e = window.setTimeout(() => {
      this.#t?.abort("Timeout."), s({ status: "timeout", reason: "" });
    }, this.#s.timeout);
    try {
      const r = await fetch(t, { ...o, method: "HEAD", signal: this.#t?.signal });
      r.status === 200 ? a({ status: "successed", reason: "" }) : s({ status: "failed", reason: `${r.status}` });
    } catch (r) {
      s({ status: "error", reason: r.message });
    }
    clearTimeout(e);
  });
  /**
   *
   * @param input string | URL | Request
   * @param init RequestInit
   */
  request = async (t, o) => new Promise(async (a, s) => {
    try {
      this.#s.check && await this.check(t, o), this.#t = new AbortController();
      const e = await fetch(t, { ...o, signal: this.#t?.signal });
      a(e);
    } catch (e) {
      this.stop(), s(e);
    }
  });
  /**
   * stop
   */
  stop = () => {
    this.#t?.signal.aborted === !1 && this.#t.abort("Actively stop.");
  };
}
export {
  c as PrFetch
};