I Finally Understood How to Pass Multiple Values in Redux Toolkit (The Right Way)

Today was one of those small learning moments… but it completely changed how I write Redux logic. I used to think: 👉 “Redux actions can only take one value” 👉 “If I need more data, things will get messy” But today I learned a clean and scalable way to handle multiple values in Redux Toolkit using the prepare function. The Problem I Faced I was trying to dispatch an action like this: Loan amount Loan purpose At first, I didn’t know how to pass both values properly. I thought maybe I need: multiple actions or a complex payload structure But that would make things messy and hard to maintain. The Solution: prepare Function in Redux Toolkit Then I discovered something powerful inside createSlice: 👉 The prepare method Here’s the code I worked with: requestLoan: { prepare(amount, purpose) { return { payload: { amount, purpose }, }; }, reducer(state, action) { if (state.loan > 0) return; state.loan = action.payload.amount; state.loanPurpose = action.payload.purpose; state.balance += acti