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[英]How can I solve this 422 error when trying to send information to the database using an axios POST request?
[英]How can I send a POST request to display a message to an html file using axios?
我正在使用weatherstack API并希望使用 POST 方法将给定城市的当前温度发送到 html 中的简单表格(如果可能,则为 axios)。 我尝试使用 axios 中的 GET 方法来消费 API 和 express 中的 POST 方法,以便在用户在搜索栏中输入他们想要的城市后发送结果。 代码如下:
应用程序.js
const express = require('express');
const app = express();
const bodyParser = require('body-parser');
const axios = require('axios');
const access_key = '...'
app.use(bodyParser.urlencoded({extended: false}));
app.get('/', (req, res) => {
res.sendFile(__dirname + '/index.html');
});
// Successful GET in the console
// axios.get(`http://api.weatherstack.com/current?access_key=${access_key}&query=Dallas`)
// .then(response => {
// const apiResponse = response.data;
// console.log(`Current temperature in ${apiResponse.location.name} is ${apiResponse.current.temperature}℃`);
// }).catch(error => {
// console.log(error);
// });
// ----The problem-------
app.post('/', async function (req, res) {
const{response} = await axios(`http://api.weatherstack.com/current?access_key=${access_key}&query=${req.body.cityName}`)
res.send(`<p>Current temperature in ${req.body.cityName} is ${response.current.temperature} ℃</p>
<a href = '/'>Back</a>`)
});
//------------------------
app.listen({port: 4000}, () => {
console.log("Server running on localhost:4000");
});
网站
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Weatherstack</title>
</head>
<body>
<form action="/" method="post">
<p>Inform the city</p>
<input name="cityName">
<button type="submit">Send</button>
</form>
</body>
</html>
但是当我运行服务器时,我得到这个错误:
我该如何解决?
Axios 返回AxiosResponse
object。
export interface AxiosResponse<T = any, D = any> {
data: T;
status: number;
statusText: string;
headers: RawAxiosResponseHeaders | AxiosResponseHeaders;
config: AxiosRequestConfig<D>;
request?: any;
}
您回复的内容在data
object内。
const { data } = await axios(
`http://api.weatherstack.com/current?access_key=${access_key}&query=${req.body.cityName}`
);
res.send(
`<p>Current temperature in ${req.body.cityName} is ${data.current.temperature} ℃</p><a href = '/'>Back</a>`
)
要么
const response = await axios(
`http://api.weatherstack.com/current?access_key=${access_key}&query=${req.body.cityName}`
);
res.send(
`<p>Current temperature in ${req.body.cityName} is ${response.data.current.temperature} ℃</p><a href = '/'>Back</a>`
)
我测试了这段代码,它工作正常。
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