如何使用 Cloud Functions 获取数据

Question

我想在 Firebase Cloud Functions 中 onCall 时在内部执行 http.get 并返回相应的邮政编码。 我想从 Flutter 打电话。

const functions = require("firebase-functions");
const admin = require('firebase-admin');
let http = require('https');
admin.initializeApp();
exports.postalCode = functions.https.onCall(async (data, context) => {
    //const URL = "https://zipcloud.ibsnet.co.jp/api/searchzipcode="+data.text;
const URL = 'https://zipcloud.ibsnet.co.jp/api/search?zipcode=100-0002';
var data = [];
http.get(URL, (res) => {
    let body = '';
    res.setEncoding('utf8');

    res.on('data', (chunk) => {
        body += chunk;
        data.push(body);
    });

    res.on('end', (res) => {
        return data[0];
    });
    }).on('error', (e) => {
        console.log(e.message); //when Error
    });   
});

怎么了？ 感谢您的支持。

Answer 1

你能用node-fetch代替吗，会更容易

const functions = require("firebase-functions");
const admin = require('firebase-admin');
const fetch = require('node-fetch');

admin.initializeApp();
exports.postalCode = functions.https.onCall(async (data, context) => {
    const URL = 'https://zipcloud.ibsnet.co.jp/api/search?zipcode=100-0002';
    return (await fetch(URL)).json();

});