110 lines
2.7 KiB
TypeScript
110 lines
2.7 KiB
TypeScript
import * as plugins from './plugins.js';
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import * as types from './types.js';
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/**
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* Core Response class that provides a fetch-like API
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*/
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export class CoreResponse<T = any> implements types.ICoreResponse<T> {
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private incomingMessage: plugins.http.IncomingMessage;
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private bodyBufferPromise: Promise<Buffer> | null = null;
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private consumed = false;
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// Public properties
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public readonly ok: boolean;
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public readonly status: number;
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public readonly statusText: string;
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public readonly headers: plugins.http.IncomingHttpHeaders;
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public readonly url: string;
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constructor(incomingMessage: plugins.http.IncomingMessage, url: string) {
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this.incomingMessage = incomingMessage;
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this.url = url;
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this.status = incomingMessage.statusCode || 0;
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this.statusText = incomingMessage.statusMessage || '';
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this.ok = this.status >= 200 && this.status < 300;
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this.headers = incomingMessage.headers;
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}
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/**
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* Ensures the body can only be consumed once
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*/
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private ensureNotConsumed(): void {
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if (this.consumed) {
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throw new Error('Body has already been consumed');
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}
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this.consumed = true;
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}
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/**
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* Collects the body as a buffer
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*/
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private async collectBody(): Promise<Buffer> {
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this.ensureNotConsumed();
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if (this.bodyBufferPromise) {
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return this.bodyBufferPromise;
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}
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this.bodyBufferPromise = new Promise<Buffer>((resolve, reject) => {
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const chunks: Buffer[] = [];
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this.incomingMessage.on('data', (chunk: Buffer) => {
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chunks.push(chunk);
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});
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this.incomingMessage.on('end', () => {
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resolve(Buffer.concat(chunks));
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});
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this.incomingMessage.on('error', reject);
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});
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return this.bodyBufferPromise;
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}
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/**
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* Parse response as JSON
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*/
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async json(): Promise<T> {
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const buffer = await this.collectBody();
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const text = buffer.toString('utf-8');
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try {
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return JSON.parse(text);
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} catch (error) {
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throw new Error(`Failed to parse JSON: ${error.message}`);
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}
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}
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/**
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* Get response as text
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*/
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async text(): Promise<string> {
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const buffer = await this.collectBody();
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return buffer.toString('utf-8');
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}
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/**
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* Get response as ArrayBuffer
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*/
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async arrayBuffer(): Promise<ArrayBuffer> {
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const buffer = await this.collectBody();
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return buffer.buffer.slice(buffer.byteOffset, buffer.byteOffset + buffer.byteLength);
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}
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/**
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* Get response as a readable stream
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*/
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stream(): NodeJS.ReadableStream {
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this.ensureNotConsumed();
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return this.incomingMessage;
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}
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/**
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* Get the raw IncomingMessage (for legacy compatibility)
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*/
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raw(): plugins.http.IncomingMessage {
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return this.incomingMessage;
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}
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} |