我正在尝试发送两个 json 但它不起作用。它打印TypeError: res.json is not a function但我不明白为什么会发生。有什么想法吗？谢谢 ！！
app.post('/danger', function response(req, res) {
let placeId = req.body.data;
let option = {
uri: 'https://maps.googleapis.com/maps/api/directions/json?',
qs: {
origin:`place_id:${placeId[0]}`, destination: `place_id:${placeId[1]}`,
language: 'en', mode: 'walking', alternatives: true, key: APIKey
}
};
rp(option)
.then(function(res) {
let dangerRate = dangerTest(JSON.parse(res), riskGrid);
res.json({ data: [res, dangerRate]});
})
.catch(function(err) {
console.error("Failed to get JSON from Google API", err);
})
});
因为你正在覆盖你的res变量在.then你的rp功能：
app.post('/danger', function response(req, res) { //see, "res" here was being overwritten
..
..
rp(option).then(function(response) { //change the variable name of "res" to "response" (or "turtles", who cares, just dont overwrite your up most "res")
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