feat: initial commit

http/libraries/request.ts

@@ -0,0 +1,43 @@
+import { NEW_LINE, PROTOCOL } from "./common.ts";
+import { Response } from "./response.ts";
+
+export class Request {
+  constructor(readonly connection: Deno.Conn, readonly options: RequestOptions) {}
+
+  async send(): Promise<Response> {
+    const http = await this.encode(this.toHttp());
+    await this.connection.write(http);
+    return new Response(this.connection).resolve();
+  }
+
+  toHttp() {
+    const { method, path, headers = {}, body } = this.options;
+    const parts: string[] = [
+      `${method} ${path} ${PROTOCOL}`,
+    ];
+    for (const key in headers) {
+      parts.push(`${key}: ${(headers as any)[key]}`);
+    }
+    if (body !== undefined) {
+      parts.push(`Content-Length: ${body.length}`);
+    }
+    return `${parts.join(NEW_LINE)}${NEW_LINE}${NEW_LINE}${body ?? ""}`;
+  }
+
+  async encode(value: string): Promise<Uint8Array> {
+    return new TextEncoder().encode(value);
+  }
+
+  async decode(buffer: Uint8Array): Promise<string> {
+    return new TextDecoder().decode(buffer);
+  }
+}
+
+export type RequestOptions = {
+  method: RequestMethod;
+  path: string;
+  headers?: RequestInit["headers"];
+  body?: string;
+};
+
+export type RequestMethod = "HEAD" | "OPTIONS" | "POST" | "GET" | "PUT" | "DELETE";