feat/api-prox: add index and health pages

api-prox/src/utils/info.ts

@@ -0,0 +1,27 @@
+//     ___          _                 __     ___    ____  ____   ____
+//    /   |  ____  (_)  ______ ______/ /_   /   |  / __ \/  _/  / __ \_________  _  ____  __
+//   / /| | / __ \/ / |/_/ __ `/ ___/ __/  / /| | / /_/ // /   / /_/ / ___/ __ \| |/_/ / / /
+//  / ___ |/ / / / />  </ /_/ / /  / /_   / ___ |/ ____// /   / ____/ /  / /_/ />  </ /_/ /
+// /_/  |_/_/ /_/_/_/|_|\__,_/_/   \__/  /_/  |_/_/   /___/  /_/   /_/   \____/_/|_|\__, /
+//                                                                                 /____/
+
+export function asciiHTML() {
+    const stringBuilder = [];
+    stringBuilder.push(`<pre>`);
+    stringBuilder.push("    ___          _                 __     ___    ____  ____   ____                       ")
+    stringBuilder.push("   /   |  ____  (_)  ______ ______/ /_   /   |  / __ \\/  _/  / __ \\_________  _  ____  __")
+    stringBuilder.push("  / /| | / __ \\/ / |/_/ __ `/ ___/ __/  / /| | / /_/ // /   / /_/ / ___/ __ \\| |/_/ / / /")
+    stringBuilder.push(" / ___ |/ / / / /&gt;  &lt;/ /_/ / /  / /_   / ___ |/ ____// /   / ____/ /  / /_/ /&gt;  &lt;/ /_/ /")
+    stringBuilder.push("/_/  |_/_/ /_/_/_/|_|\\__,_/_/   \\__/  /_/  |_/_/   /___/  /_/   /_/   \\____/_/|_|\\__, /")
+    stringBuilder.push("                                                                                /____/")
+    stringBuilder.push(`</pre>`);
+    return stringBuilder.join("\n");
+}
+
+export function separatorHTML() {
+    const stringBuilder = [];
+    stringBuilder.push(`<pre>`);
+    stringBuilder.push("-".repeat(92))
+    stringBuilder.push(`</pre>`);
+    return stringBuilder.join("\n");
+}

api-prox/src/utils/tryCatch.ts

@@ -0,0 +1,61 @@
+type Success<T> = {
+  data: T;
+  error: null;
+};
+
+type Failure<E> = {
+  data: null;
+  error: E;
+};
+
+type Result<T, E = Error> = Success<T> | Failure<E>;
+
+export async function tryCatch<T, E = Error>(
+  promise: Promise<T>
+): Promise<Result<T, E>> {
+  try {
+    const data = await promise;
+    return { data, error: null };
+  } catch (error) {
+    return { data: null, error: error as E };
+  }
+}
+
+function generateError(message: string, code: number) {
+    return {message: message, code: code}
+}
+
+export async function tryCatchAPI<T, E = Error>(
+  promise: Promise<any>
+): Promise<Result<object | null, object | null>> {
+    const { data, error }: Awaited<Result<Response | null, Error | null>> = await tryCatch(promise);
+    if (!data || error) return { data: null, error: error };
+
+    if (
+      data.headers.get("content-length") &&
+      Number(data.headers.get("content-length")) == 0
+    ) {
+      return {
+        data: null,
+        error: generateError("Not Found", 404),
+      };
+    }
+
+    try {
+        const body: Awaited<any> = await data.json();
+        if (body.code != 0) {
+            return {
+                data: null,
+                error: generateError("Anixart API Error", body.code),
+            };
+        }
+        return {
+            data: body,
+            error: null,
+        };
+    } catch {
+        return { data: null, error: generateError("failed to parse json", 500) }
+    }
+
+    return { data: null, error: generateError("tryCatch.ts: unreachable", 500) }
+}