feat(front): Service worker is coming!

1 files changed, 25 insertions, 0 deletions

diff --git a/Timeline/ClientApp/src/app/data/common.ts b/Timeline/ClientApp/src/app/data/common.ts
new file mode 100644
index 00000000..1cdf93f1
--- /dev/null
+++ b/Timeline/ClientApp/src/app/data/common.ts
@@ -0,0 +1,25 @@
+import { AxiosError } from 'axios';
+
+export function extractStatusCode(error: AxiosError): number | null {
+  const code = error.response && error.response.status;
+  if (typeof code === 'number') {
+    return code;
+  } else {
+    return null;
+  }
+}
+
+export interface CommonErrorResponse {
+  code: number;
+  message: string;
+}
+
+export function extractErrorCode(error: AxiosError): number | null {
+  const { response } = error as AxiosError<CommonErrorResponse>;
+  const code = response && response.data && response.data.code;
+  if (typeof code === 'number') {
+    return code;
+  } else {
+    return null;
+  }
+}