http-get-store.ts

import {
  BaseResourceStore,
  BasicRepresentation,
  Representation,
  ResourceIdentifier,
} from "@solid/community-server";
import fetch from "node-fetch";
import { RepresentationPreferences } from "@solid/community-server/dist/ldp/representation/RepresentationPreferences";
const parseContentType = require("content-type").parse;

/**
 * Fetches the resource at an URL
 */
export class HttpGetStore extends BaseResourceStore {
  private readonly url: string;

  public constructor(options: { url: string }) {
    super();
    this.url = options.url;
  }

  /**
   * Retrieves a JSON representation of events in the calender.
   */
  public async getRepresentation(
    identifier: ResourceIdentifier,
    preferences: RepresentationPreferences
  ): Promise<Representation> {
    const response = await fetch(this.url);
    const text = await response.text();
    let contentType = response.headers.get("content-type") || "text/plain";
    contentType = parseContentType(contentType).type;

    return new BasicRepresentation(text, identifier, contentType);
  }
}