Update API codes (#336)

api/internal/genapi/templates.go

@@ -321,18 +321,19 @@ func (c *Client) Delete(ctx context.Context, {{ .ResourceFunctionArg }} string,
 		return false, nil, fmt.Errorf("error performing client request during Delete call: %w", err)
 	}
 
-	type deleteResponse struct {
-		Existed bool
-	}
-	target := &deleteResponse{}
-	apiErr, err := resp.Decode(target)
+	apiErr, err := resp.Decode(nil)
 	if err != nil {
 		return false, nil, fmt.Errorf("error decoding Delete response: %w", err)
 	}
 	if apiErr != nil {
+		// We don't treat a 404 in this case as failure, in order for deletes to
+		// be idempotent
+		if apiErr.Status == http.StatusNotFound {
+			return false, nil, nil
+		}
 		return false, apiErr, nil
 	}
-	return target.Existed, apiErr, nil
+	return true, nil, nil
 }
 `))