fix(sdk): Fix for queries to older platforms (#570)

* Use the gRPC gateway variant for now; we will switch to connectRPC with a feature flag later

Author: dmihalcik-virtru

lib/src/access.ts

@@ -164,16 +164,11 @@ export async function fetchKeyAccessServers(
   const allServers = [];
   do {
     const req = await authProvider.withCreds({
-      url: `${platformUrl}/policy.kasregistry.KeyAccessServerRegistryService/ListKeyAccessServers`,
-      method: 'POST',
+      url: `${platformUrl}/key-access-servers?pagination.offset=${nextOffset}`,
+      method: 'GET',
       headers: {
         'Content-Type': 'application/json',
       },
-      body: JSON.stringify({
-        pagination: {
-          offset: nextOffset,
-        },
-      }),
     });
     let response: Response;
     try {

lib/tests/server.ts

@@ -374,7 +374,8 @@ const kas: RequestListener = async (req, res) => {
       res.statusCode = 200;
       res.end('Server stopped');
     } else if (
-      url.pathname === '/policy.kasregistry.KeyAccessServerRegistryService/ListKeyAccessServers'
+      url.pathname === '/policy.kasregistry.KeyAccessServerRegistryService/ListKeyAccessServers' ||
+      url.pathname === '/key-access-servers'
     ) {
       console.log('Listed Key Access Servers!');
       res.writeHead(200);