我正在用 TypeScript 在 Next.js 上做一個個人專案。我試圖獲取一個api，然后做一個專案的地圖，但我無法讓它作業。我做了一個console.log，它給出了未定義的。我確實將檔案放在 pages 檔案夾中。這是代碼：
import { InferGetStaticPropsType } from 'next'
type Data = {
id: string
films: string
people: string
planets: string
species: string
vehicles: string
}
export const getStaticProps = async () => {
const res = await fetch('https://www.swapi.tech/api/')
const swapis: Data[] = await res.json()
return {
props: {
swapis,
},
}
}
const FilmList = ({ swapis }: InferGetStaticPropsType<typeof getStaticProps>) => {
console.log('swapis', swapis)
return (
<>
<h2>List of Films</h2>
{swapis.map((swapi) => (
<ul key={swapi.id}>
<li>{swapi.films}</li>
</ul>
))}
</>
);
}
export default FilmList;
uj5u.com熱心網友回復：
你的Data型別不對。您正在呼叫https://www.swapi.tech/api/回傳
{
"message": "ok",
"result": {
"films": "https://www.swapi.tech/api/films",
"people": "https://www.swapi.tech/api/people",
"planets": "https://www.swapi.tech/api/planets",
"species": "https://www.swapi.tech/api/species",
"starships": "https://www.swapi.tech/api/starships",
"vehicles": "https://www.swapi.tech/api/vehicles"
}
}
完整的作業示例：
import { InferGetStaticPropsType } from 'next';
type Data = {
message: string;
result: {
id: string;
films: string;
people: string;
planets: string;
species: string;
vehicles: string;
};
};
export const getStaticProps = async () => {
const res = await fetch('https://www.swapi.tech/api/');
const swapis: Data = await res.json();
return {
props: {
swapis,
},
};
};
const FilmList = ({ swapis }: InferGetStaticPropsType<typeof getStaticProps>) => {
return (
<>
<h2>List of Films</h2>
{Object.entries(swapis.result).map(([key, value]) => (
<ul key={key}>
<li>{value}</li>
</ul>
))}
</>
);
};
export default FilmList;
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