1 files changed, 80 insertions, 0 deletions
diff --git a/web/pw-server/src/lib/api_client.ts b/web/pw-server/src/lib/api_client.ts
new file mode 100644
index 0000000..706d958
--- /dev/null
+++ b/web/pw-server/src/lib/api_client.ts
@@ -0,0 +1,80 @@
+import { browser } from "$app/env";
+import { get_session_token } from "./auth";
+
+export type FetchFn = (input: RequestInfo, init?: RequestInit) => Promise<Response>;
+
+export class ApiError extends Error {
+  constructor(public status: number, message?: string) {
+    super(message);
+  }
+}
+
+export class ApiClient {
+  private fetch_fn: FetchFn;
+  private sessionToken?: string;
+
+  constructor(fetch_fn?: FetchFn) {
+    if (fetch_fn) {
+      this.fetch_fn = fetch_fn;
+    } else if (browser) {
+      this.fetch_fn = fetch.bind(window);
+    }
+
+    // TODO: maybe it is cleaner to pass this as a parameter
+    this.sessionToken = get_session_token();
+  }
+
+  async get(url: string, params?: Record<string, string>): Promise<any> {
+    const response = await this.getRequest(url, params);
+    this.checkResponse(response);
+    return await response.json();
+  }
+
+  async getText(url: string, params?: Record<string, string>): Promise<any> {
+    const response = await this.getRequest(url, params);
+    this.checkResponse(response);
+    return await response.text();
+  }
+
+  async post(url: string, data: any): Promise<any> {
+    const headers = { "Content-Type": "application/json" };
+
+    const token = get_session_token();
+    if (token) {
+      headers["Authorization"] = `Bearer ${token}`;
+    }
+
+    const response = await this.fetch_fn(url, {
+      method: "POST",
+      headers,
+      body: JSON.stringify(data),
+    });
+
+    this.checkResponse(response);
+    return await response.json();
+  }
+
+  private async getRequest(url: string, params: Record<string, string>): Promise<Response> {
+    const headers = { "Content-Type": "application/json" };
+
+    if (this.sessionToken) {
+      headers["Authorization"] = `Bearer ${this.sessionToken}`;
+    }
+
+    if (params) {
+      let searchParams = new URLSearchParams(params);
+      url = `${url}?${searchParams}`;
+    }
+
+    return await this.fetch_fn(url, {
+      method: "GET",
+      headers,
+    });
+  }
+
+  private checkResponse(response: Response) {
+    if (!response.ok) {
+      throw new ApiError(response.status, response.statusText);
+    }
+  }
+}