fix: update tokens after reading/creating client [#244] (#250)

* fix: update tokens after reading/creating client [#244]

* Update packages/clerk_auth/lib/src/clerk_api/api.dart

---------

Co-authored-by: Simon Lightfoot <[email protected]>

Author: shinyford

packages/clerk_auth/lib/src/clerk_api/api.dart

@@ -114,7 +114,9 @@ class Api with Logging {
     );
     if (resp.statusCode == HttpStatus.ok) {
       final body = json.decode(resp.body) as _JsonObject;
-      return Client.fromJson(body[_kResponseKey]);
+      final client = Client.fromJson(body[_kResponseKey]);
+      _tokenCache.updateFrom(resp, client);
+      return client;
     }
     return Client.empty;
   }
@@ -809,11 +811,10 @@ class Api with Logging {
       final resp = await _fetch(
         path: path,
         headers: _headers(),
-        params: {
+        nullableParams: {
           if (org case Organization org) //
             _kOrganizationId: org.externalId,
         },
-        nullableKeys: [_kOrganizationId],
       );
       if (resp.statusCode == HttpStatus.ok) {
         final body = json.decode(resp.body) as _JsonObject;
@@ -945,14 +946,20 @@ class Api with Logging {
     HttpMethod method = HttpMethod.post,
     Map<String, String>? headers,
     _JsonObject? params,
+    _JsonObject? nullableParams,
     bool withSession = false,
-    List<String>? nullableKeys,
   }) async {
-    final parsedParams = {...?params}..removeWhere(
-        (key, value) => value == null && nullableKeys?.contains(key) != true,
-      );
-    final queryParams =
-        _queryParams(method, withSession: withSession, params: parsedParams);
+    final parsedParams = {
+      for (final entry in (params ?? const {}).entries)
+        if (entry.value != null) //
+          entry.key: entry.value,
+      ...?nullableParams,
+    };
+    final queryParams = _queryParams(
+      method,
+      withSession: withSession,
+      params: parsedParams,
+    );
     final uri = _uri(path, params: queryParams);
 
     final resp = await config.httpService.send(