I'm trying to render data from props
in React
functional component that look like this:
interface TagsComponentProps {
tags: Tag[];
}
const TagsComponent: FC<TagsComponentProps> = (props: TagsComponentProps) => (
<>
{props.tags.length === 0 &&
<LoadingStateComponent />
}
{props.tags.map(tag => {
{ tag.tagId }
{ tag.tagName }
})
}
</>
)
export default TagsComponent;
Within Next.js
page that receiving data inside the getStaticProps
method. It looks like that:
const IndexPage = ({ tags }: InferGetStaticPropsType<typeof getStaticProps>) => (
<>
<LayoutComponent>
<TagsComponent tags={tags} />
</LayoutComponent>
</>
)
export default IndexPage;
export const getStaticProps = async () => {
const res = await fetch(`${process.env.HOST}/api/tags/read`)
const data = await res.json()
// if (error) {
// return <ErrorComponent errorMessage={'Ошибка загрузки тегов'} />
// }
return {
props: {
tags: data.Items as Tag[]
}
}
}
But nothing is getting rendered at all although I'm receiving data. Probably I'm missing some concept of data fetching for SSR in Next.js
.
I guess the issue is .map()
is not returning anything in your code here:
{props.tags.map(tag => {
{ tag.tagId }
{ tag.tagName }
})
}
Instead you should try as the following:
{
props.tags.map(tag => (
<>
{ tag.tagId }
{ tag.tagName }
</>
))
}
Also you can do a null
check before as props.tags && props.tags.map()
.
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