chore: add authStrategy

src/auth_strategy/AuthStrategy.ts

@@ -0,0 +1,8 @@
+export default abstract class AuthStrategy {
+  private authType: string;
+  protected constructor(authType: string) {
+    this.authType = authType;
+  }
+  abstract getAuthString(): Promise<string>;
+  abstract requiresAuthentication(): boolean;
+}

src/auth_strategy/BasicAuthStrategy.ts

@@ -0,0 +1,23 @@
+import AuthStrategy from "./AuthStrategy";
+
+export default class BasicAuthStrategy extends AuthStrategy {
+  private username: string;
+  private password: string;
+
+  constructor(username: string, password: string) {
+    super("basic");
+    this.username = username;
+    this.password = password;
+  }
+
+  getAuthString(): Promise<string> {
+    const auth = Buffer.from(this.username + ":" + this.password).toString(
+      "base64"
+    );
+    return Promise.resolve(`Basic ${auth}`);
+  }
+
+  requiresAuthentication(): boolean {
+    return true;
+  }
+}

src/auth_strategy/NoAuthStrategy.ts

@@ -0,0 +1,15 @@
+import AuthStrategy from "./AuthStrategy";
+
+export default class NoAuthStrategy extends AuthStrategy {
+  constructor() {
+    super("noauth");
+  }
+
+  getAuthString(): Promise<string> {
+    return Promise.resolve("");
+  }
+
+  requiresAuthentication(): boolean {
+    return false;
+  }
+}