使用Wrinfinite与分页和突变特征
我正在使用usewr来从NextJ中的客户端获取数据。
我正在做的事情并试图实现
我正在使用useswrinfinite进行分页功能,并尝试更新具有OpptisticData的绑定突变功能之类的评论,因为我想立即刷新数据。(客户端侧透视)
- > https://swr.vercel.app/docs/munt.unt.popt-poptimistic-umistic-updates 然后从Axios中获取新的更新评论,并将其替换为以前的评论,该评论应更新。
预期
usesingwrinfinite的数据应立即更新,因为我正在使用OpportisticData选项,直到完成API调用为止,并且我可以将RETAIRES OPTICE设置为True,但是在突变返回中的异步功能更新了,该函数带有带有带有的更新数据。 Axios的响应。我不需要。
实际行为
即使我将OpportisticData传递给突变,也不会立即更新数据。它一直在等待直到完成API调用,然后更新。
我尝试过的
我尝试过仅使用分页功能的普通使用WRWARD,并且按照我的预期运行良好。
const { data, error, isValidating, mutate, size, setSize } = useSWRInfinite<CommentType[]>(
(index) => `/api/comment?postId=${postId}¤tPage=${index + 1}`,
fetcher,
{ revalidateFirstPage: false }
);
const likeCommentHandler = async (commentId: string, dislike: boolean) => {
const optimisticData = data?.map((comments) => {
return comments.map((comment) => {
if (comment.id === commentId) {
if (dislike) {
--comment._count.likedBy;
comment.likedByIds = comment.likedByIds.filter(
(likeById) => likeById !== session!.user.id
);
} else {
comment.likedByIds.push(session!.user.id);
++comment._count.likedBy;
}
return { ...comment };
} else {
return { ...comment };
}
});
});
mutate(
async (data) => {
const { data: result } = await axios.post("/api/likeComment", {
commentId: commentId,
userId: session?.user.id,
dislike,
});
const newData = data?.map((comments) => {
return comments.map((comment) => {
if (comment.id === result.comment.id) {
return result.comment;
} else {
return comment;
}
});
});
return newData;
},
{ optimisticData, revalidate: false, populateCache: true }
);
};
I'm using useSWR to fetch data from client side in nextjs.
What I am doing and trying to achieve
I am using useSWRInfinite for the pagination feature and trying to update comments like state with bound mutate function with optimisticData option since I wanted to refresh the data immediately.(client-side perspective)
-> https://swr.vercel.app/docs/mutation#optimistic-updates and then get a new updated comment from axios and replace it with a previous comment that should be updated.
Expected
The data from useSWRInfinite should be updated right away since I am using optimisticData option until the API call is done and I could've set revalidate option to true but an async function in the mutate returns updated data with the response from axios. I didn't need it.
Actual behaviour
Even though I am passing optimisticData to the mutate, It doesn't update the data immediately. It keeps waiting until The API call is done and then gets updated.
What I've tried
I have tried using just normal useSWR function without the pagination feature and it worked well as I expected.
const { data, error, isValidating, mutate, size, setSize } = useSWRInfinite<CommentType[]>(
(index) => `/api/comment?postId=${postId}¤tPage=${index + 1}`,
fetcher,
{ revalidateFirstPage: false }
);
const likeCommentHandler = async (commentId: string, dislike: boolean) => {
const optimisticData = data?.map((comments) => {
return comments.map((comment) => {
if (comment.id === commentId) {
if (dislike) {
--comment._count.likedBy;
comment.likedByIds = comment.likedByIds.filter(
(likeById) => likeById !== session!.user.id
);
} else {
comment.likedByIds.push(session!.user.id);
++comment._count.likedBy;
}
return { ...comment };
} else {
return { ...comment };
}
});
});
mutate(
async (data) => {
const { data: result } = await axios.post("/api/likeComment", {
commentId: commentId,
userId: session?.user.id,
dislike,
});
const newData = data?.map((comments) => {
return comments.map((comment) => {
if (comment.id === result.comment.id) {
return result.comment;
} else {
return comment;
}
});
});
return newData;
},
{ optimisticData, revalidate: false, populateCache: true }
);
};
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