我在部署我的应用程序时遇到了 CORS 错误,所以我决定尝试 Netlify Dev。
我遵循了书面教程的所有步骤,但我不断收到错误,但无法识别出什么是错误的。我什至还没有部署它,现在我遇到了 403 错误,之前是 500 内部服务器错误。
如果您发现我有任何明显的错误,请告诉我。
这是节点获取代码:
const fetch = require("node-fetch");
exports.handler = async function () {
const headers = {
"x-api-key": process.env.REACT_APP_MY_API_KEY,
"content-type": "application/json",
};
try {
const response = await fetch("https://api.crimeometer.com", { headers });
if (!response.ok) {
return { statusCode: response.status, body: response.statusText };
}
const data = await response.json();
return {
statusCode: 200,
body: JSON.stringify(data),
};
} catch (err) {
console.log(err);
return {
statusCode: 500,
body: JSON.stringify({ msg: err.message }),
};
}
};
这是我的应用程序的前端(带有相关代码):
const initializeApp = useCallback(() => {
async function fetchData() {
try {
let req = new Request(
`./.netlify/functions/node-fetch?lat=${lat}&lon=${lon}&distance=10km&datetime_ini=${newdateyear}&datetime_end=${newdatenow}&page=1`);
const res = await fetch(req);
const info = await res.json();
setCrimes(info.incidents);
} catch (err) {
console.log(err);
}
}
}, [submit, lat, lon]);
useEffect(() => {
initializeApp();
}, [initializeApp]);
这是我试图从中获取数据的地方:
https://api.crimeometer.com/v1/incidents/raw-data?lat=${lat}&lon=${lon}&distance=10km&datetime_ini=${newdateyear}&datetime_end=${newdatenow}&page=1
It requires two headers to be set on frontend, which I have done in the netlify function