I am new to the new way of doing things in Redux and I am a little confused.
I want to call one API endpoint to get an account Id and a category Id. Once I grab those, I want to make another request to another API endpoint to get a list of transactions.
My createApi
function is like this:
export const accountApiSlice = createApi({
reducerPath: "api",
baseQuery: fetchBaseQuery({
prepareHeaders(headers) {
headers.set("authorization", token);
return headers;
},
}),
endpoints(builder) {
return {
fetchAccount: builder.query<AccountEndpointResponse, void>({
query() {
return `/accounts`;
},
}),
fetchTransactions: builder.query<
TransactionsEndpointResponse,
{ accountId: string; categoryId: string; changesSince: string }
>({
query({accountId, categoryId, changesSince}) {
return `feed/account/${accountId}/category/${categoryId}?changesSince=${changesSince}`;
},
}),
};
},
});
The changesSince
param is just an ISO DateTime that I generate myself.
In my App.tsx
I have:
function App() {
const { data, isSuccess } = useFetchAccountQuery();
let accountId = data?.accounts[0].accountUid;
let categoryId = data?.accounts[0].defaultCategory;
return (
<header className="App-header">
<p>Number of accounts fetched: {data?.accounts.length}</p>
<p>Account Id: {accountId}</p>
<p>Category Id: {categoryId}</p>
{ accountId && categoryId && <TransactionsTable accountId={accountId} categoryId={categoryId} /> }
</header>
);
}
export default App;
Finally, in my TransactionsTable
component, I have:
import { skipToken } from "@reduxjs/toolkit/dist/query";
import moment from "moment";
import { useFetchTransactionsQuery } from "./accountApiSlice";
interface TransactionsProps {
accountId: string;
categoryId: string;
}
const TransactionsTable = (props: TransactionsProps) => {
const changesSince: string = moment().subtract(7, "d").toISOString();
const { data, error, isSuccess } = useFetchTransactionsQuery({
accountId: props.accountId,
categoryId: props.categoryId,
changesSince,
}, skipToken);
return (
<>
{isSuccess && (
<div>
<h1>Number of transactions: {data?.feedItems.length}</h1>
</div>
)}
{error && <p>{error.toString()}</p>}
</>
);
};
export default TransactionsTable;
I am not 100% sure of my approach. I feel like I'm doing something wrong. I feel like I shouldn't be passing the account Id and category Id as props to the TransactionsTable
component. I feel like I should instead access those from the state directly, but I wasn't sure how.
Secondly, my fetching of the transactions should trigger and render on the page, but it isn't and again I'm not sure why.
I tried to use the skipToken
technique, like so:
const { data, error, isSuccess } = useFetchTransactionsQuery({
accountId: props.accountId,
categoryId: props.categoryId,
changesSince,
}, skipToken);
But TypeScript was not happy, I got the error:
Type 'unique symbol' has no properties in common with type 'UseQuerySubscriptionOptions & UseQueryStateOptions<QueryDefinition<{ accountId: string | undefined; categoryId: string | undefined; changesSince: string | undefined; }, BaseQueryFn<string | FetchArgs, unknown, FetchBaseQueryError, {}, FetchBaseQueryMeta>, never, TransactionsEndpointResponse, "api">, UseQueryStateDef...'.ts(2559)
However, nothing seems to have changed. I don't get Number of transactions: <some number>
. What am I missing?
skipToken
should be passed in instead of the first parameter, like:
useFetchTransactionsQuery(
someCondition ? realArgument : skipToken
)
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