fix(dynamic-sampling): Loop over paginated results

static/app/views/settings/dynamicSampling/utils/useSamplingProjectRates.tsx

@@ -1,9 +1,11 @@
+import type {Client} from 'sentry/api';
 import type {Organization} from 'sentry/types/organization';
+import parseLinkHeader from 'sentry/utils/parseLinkHeader';
 import {
   type ApiQueryKey,
   setApiQueryData,
-  useApiQuery,
   useMutation,
+  useQuery,
   useQueryClient,
 } from 'sentry/utils/queryClient';
 import type RequestError from 'sentry/utils/requestError/requestError';
@@ -20,12 +22,50 @@ function getEndpoint(organization: Organization) {
 }
 
 function getQueryKey(organization: Organization): ApiQueryKey {
-  return [getEndpoint(organization), {query: {perPage: 10000}}];
+  return [getEndpoint(organization)];
 }
 
+/**
+ * Fetches all sampling rates for the organization by looping through
+ * the paginated results.
+ */
+const fetchAllSamplingRates = async (
+  api: Client,
+  organization: Organization
+): Promise<SamplingProjectRate[]> => {
+  const endpoint = getEndpoint(organization);
+  let cursor: string | null = '';
+  let result: SamplingProjectRate[] = [];
+
+  while (cursor !== null) {
+    const [data, _, response] = await api.requestPromise(endpoint, {
+      method: 'GET',
+      includeAllArgs: true,
+      query: {cursor},
+    });
+
+    result = result.concat(data);
+
+    cursor = null;
+    const linkHeader = response?.getResponseHeader('Link');
+
+    if (linkHeader) {
+      const links = parseLinkHeader(linkHeader);
+      cursor = (links.next.results && links.next.cursor) || null;
+    }
+  }
+
+  return result;
+};
+
 export function useGetSamplingProjectRates() {
+  const api = useApi();
   const organization = useOrganization();
-  return useApiQuery<SamplingProjectRate[]>(getQueryKey(organization), {staleTime: 0});
+  return useQuery<SamplingProjectRate[]>({
+    queryKey: getQueryKey(organization),
+    queryFn: () => fetchAllSamplingRates(api, organization),
+    staleTime: 0,
+  });
 }
 
 export function useUpdateSamplingProjectRates() {