feat: make createDataProvider take an rqlClient as input

The rqlClient is used so often that we can expect it to be available
when creating the data provider.

packages/demo/src/App.tsx

@@ -18,6 +18,7 @@
   SimpleShowLayout,
   DataProvider,
 } from "react-admin";
+import { client } from "@logilab/cwclientlibjs";
 import { createDataProvider } from "ra-cubicweb/dist";
 
 import { schema } from "./schema";
@@ -81,7 +82,10 @@
   </Show>
 );
 
-const dataProvider = createDataProvider("http://localhost:8080", schema);
+const httpClient = new client.CwSimpleHttpClient("http://localhost:8080", true);
+const rqlClient = new client.CwRqlClient(httpClient);
+
+const dataProvider = createDataProvider(rqlClient, schema);
 dataProvider.getList("toto", {
   pagination: { page: 1, perPage: 10 },
   sort: { field: "id", order: "ASC" },

packages/ra-cubicweb/src/index.ts

@@ -16,6 +16,6 @@
 };
 
 export function createDataProvider<S extends Schema>(
-  endpoint: string,
+  rqlClient: client.CwRqlClient,
   schema: S
 ): DataProvider {
@@ -20,7 +20,5 @@
   schema: S
 ): DataProvider {
-  const httpClient = new client.CwSimpleHttpClient(endpoint, true);
-  const rqlClient = new client.CwRqlClient(httpClient);
   return {
     getList: async (resource: ETypesNames<S>, { pagination, sort }) => {
       const sortAttribute = sort.field === "id" ? "eid" : sort.field;