我已经使用 Redux 一段时间了,但我正在努力寻找 Thunk 答案......
在我的切片中,我正在调用异步函数“handleBoxDeliveryAsync”
extraReducers: (builder) => {
builder
.addCase(handleBoxDeliveryAsync.fulfilled, (state, action) => {
if (state.scanMode === "remove") {
return;
}
const payload = action?.payload?.payload as Data;
const box = payload.data.resource;
//If box hasn't COLLECTED status
if (box.status !== "COLLECTED") {
toast.warn("Le bac de collecte n'est pas disponible à la livraison");
return;
}
//If box hasn't been scanned yet
if (!state.boxes.find((b) => b.external_id === box.external_id)) {
state.boxes.push({ external_id: box.external_id, weight: 0 });
toast.success("Le bac a été ajouté");
return;
}
//If box has already been scanned
toast.warn("Le bac a déjà été scanné");
})
...
这个Thunk负责根据“scanMode”(QRCode Reader)发挥不同的功能
export const handleBoxDeliveryAsync = createAppAsyncThunk(
"collectDelivery/handleBox",
async (code: string, store) => {
try {
if (store.getState().deliveryCollect.scanMode === "add") {
return store.dispatch(getDeliveryBoxAsync(code));
}
if (store.getState().deliveryCollect.scanMode === "remove") {
return store.dispatch(removeDeliveryBoxAsync(code));
}
} catch (e) {
return Promise.reject(e); // Explicitly reject the promise if an error occurs.
}
}
);
export const getDeliveryBoxAsync = createAppAsyncThunk(
"collectDelivery/getBox",
async (code: string) => {
try {
return await getBox(code);
} catch (e) {
return Promise.reject(e);
}
}
);
export const removeDeliveryBoxAsync = createAppAsyncThunk(
"collectDelivery/removeBox",
async (code: string, thunk) => {
if (
thunk
.getState()
.deliveryCollect.boxes.map((b) => b.external_id)
.includes(code)
) {
return Promise.resolve(code);
}
return Promise.reject(code);
}
);
我的问题是,当“getDeliveryBoxAsync”被拒绝时,“handleBoxDeliveryAsync”仍被视为“已完成”。知道为什么吗?
非常感谢
我尝试处理错误和承诺
我找到了解决办法!我将逻辑移至“getDeliveryBoxAsync”
.addCase(getDeliveryBoxAsync.fulfilled, (state, { payload }) => {
const box = payload.data.resource;
if (box.status !== "COLLECTED") {
toast.warn("Le bac de collecte n'est pas disponible à la livraison");
return;
}
//If box hasn't been scanned yet
if (!state.boxes.find((b) => b.external_id === box.external_id)) {
state.boxes.push({ external_id: box.external_id, weight: 0 });
toast.success("Le bac a été ajouté");
return;
}
//If box has already been scanned
toast.warn("Le bac a déjà été scanné");
})
.addCase(getDeliveryBoxAsync.rejected, (_, { error }) => {
if (error.code === "ERR_BAD_REQUEST") {
toast.warn("Le bac n'existe pas");
return;
}
toast.warn("une erreur est survenue");
})