[英]API json data to javascript variables
我有这个问题,我已经尝试了 2 天来解决它。 我的Javascript代码:
const request = require('request'); var req = { url: 'https://api.digitransit.fi/routing/v1/routers/hsl/index/graphql', method: 'POST', headers: { "Content-Type": "application/graphql" }, body: `{ stop(id: "HSL:1122441") { stoptimesWithoutPatterns(numberOfDepartures: 1) { realtimeArrival, scheduledArrival, realtime, serviceDay, headsign, } } }` }; request(req, function (error, response, body) { if (!error && response.statusCode == 200) { console.log(JSON.stringify(JSON.parse(body), null, 4)); }
我想将 api 发回的数据获取到变量或某种东西中,这样我就可以在脚本中的任何地方调用它们。 返回的 json 数据:
{
"data": {
"stop": {
"stoptimesWithoutPatterns": [
{
"realtimeArrival": 60065,
"scheduledArrival": 60000,
"realtime": true,
"serviceDay": 1547676000,
"headsign": "Olympiaterminaali via Kallio"
}
]
}
}
}
但是当我使用类似这样的东西时;
let stoptimesWithoutPatterns = body['stop'].stoptimesWithoutPatterns
它给了我错误
TypeError: Cannot read property 'stoptimesWithoutPatterns' of undefined
由于我对编码编码很陌生,我不知道非常技术性的东西。 如果有人可以帮助我,那就太酷了 :) 因为我想拥有自己的网站或基于此的应用程序,如果我可以让它工作! 谢谢!
通过使用它,我实现了我想要的,谢谢评论的人! :) 这给了我 realtimeArrival 的价值! :)
const request = require('request');
var req = {
url: 'https://api.digitransit.fi/routing/v1/routers/hsl/index/graphql',
method: 'POST',
headers: { "Content-Type": "application/graphql" },
body: `{
stop(id: "HSL:1122441") {
stoptimesWithoutPatterns(numberOfDepartures: 1) {
realtimeArrival,
scheduledArrival,
realtime,
serviceDay,
headsign,
}
}
}`
};
request(req, function (error, response, body) {
if (!error && response.statusCode == 200) {
//console.log(JSON.parse(body));
//console.log(JSON.stringify(JSON.parse(body), null, 4));
let Parsed = JSON.parse(body);
let stoptimesWithoutPatterns = Parsed.data.stop.stoptimesWithoutPatterns[0]['realtimeArrival'];
console.log(stoptimesWithoutPatterns)
}
});
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