how to do an optimistic update with injectEndpoints
Solution 1:
There is absolutely no difference between using createApi or injectEndpoints here, in both cases it is part of the builder.mutation call:
export const heartApi = api.injectEndpoints({
endpoints: (builder) => ({
createHeart: builder.mutation({
query: (id: string) => ({ url: '/hearts', method: 'POST', body: { id } }),
onQueryStarted(arg, {queryFulfilled}){
// it would go here
}
}),
}),
});