@tokenizer/http/lib/http-client.js

HTTP tokenizer for Node.js and browser

import initDebug from 'debug';
import { ResponseInfo } from './response-info.js'; // Add 'fetch' API for node.js
const debug = initDebug('streaming-http-token-reader:http-client');
const DEFAULT_CONFIG = {
    resolveUrl: false
};
/**
 * Simple HTTP-client, which works both in node.js and browser
 */
export class HttpClient {
    constructor(url, config) {
        this.url = url;
        this.abortController = new AbortController();
        this.config = DEFAULT_CONFIG;
        Object.assign(this.config, config);
    }
    async getHeadInfo() {
        const response = new ResponseInfo(await fetch(this.url, { method: 'HEAD', signal: this.abortController.signal }));
        if (this.config.resolveUrl)
            this.resolvedUrl = response.response.url;
        return response.toRangeRequestResponse();
    }
    async getResponse(method, range) {
        const headers = new Headers();
        if (range) {
            debug(`_getResponse ${method} ${range[0]}..${range[1]}`);
            headers.set('Range', `bytes=${range[0]}-${range[1]}`);
        }
        else {
            debug(`_getResponse ${method} (range not provided)`);
        }
        const response = new ResponseInfo(await fetch(this.resolvedUrl || this.url, { method, headers, signal: this.abortController.signal }));
        if (response.response.ok) {
            if (this.config.resolveUrl)
                this.resolvedUrl = response.response.url;
            return response.toRangeRequestResponse();
        }
        throw new Error(`Unexpected HTTP response status=${response.response.status}`);
    }
    abort() {
        debug('abort');
        this.abortController.abort();
    }
}
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