无法从 API 获取值

Question

我对来自 polygon.io 的 API 呼叫有疑问。我正在使用他们的免费 API，它为我提供了有关股票代码的信息。

我正在使用一个 API，它会在我被调用时提供响应。从响应中，我需要得到响应>数据>结果>“c”值，在这种情况下，1014.97

到目前为止我能做的最好的是： console.log(response.data.results)

给出：

  Array [
  Object {
    "T": "TSLA",
    "c": 1014.97,
    "h": 1090.5753,
    "l": 1000.21,
    "n": 1043576,
    "o": 1084.79,
    "t": 1638565200000,
    "v": 30773995,
    "vw": 1028.7486,
  },

请告诉我如何获得“c”值？

这是完整的回复数据：

console.log(response)

这个，在 VS-Code>Terminal 中显示：

Object {
  "config": Object {
    "adapter": [Function xhrAdapter],
    "baseURL": "https://api.polygon.io/",
    "data": undefined,
    "headers": Object {
      "Accept": "application/json",
    },
    "maxBodyLength": -1,
    "maxContentLength": -1,
    "method": "get",
    "params": Object {
      "apiKey": "Gp5IgTvT4fPbfhINPpOk7iBIUDjOTRc9",
    },
    "timeout": 5000,
    "transformRequest": Array [
      [Function transformRequest],
    ],
    "transformResponse": Array [
      [Function transformResponse],
    ],
    "transitional": Object {
      "clarifyTimeoutError": false,
      "forcedJSONParsing": true,
      "silentJSONParsing": true,
    },
    "url": "v2/aggs/ticker/MSFT/prev",
    "validateStatus": [Function validateStatus],
    "xsrfCookieName": "XSRF-TOKEN",
    "xsrfHeaderName": "X-XSRF-TOKEN",
  },
  "data": Object {
    "adjusted": true,
    "count": 1,
    "queryCount": 1,
    "request_id": "6a2a6c28efc5fcf9e4b1f295f845bf91",
    "results": Array [
      Object {
         "T": "TSLA",
         "c": 1014.97,
         "h": 1090.5753,
         "l": 1000.21,
         "n": 1043576,
         "o": 1084.79,
         "t": 1638565200000,
         "v": 30773995,
        "vw": 1028.7486,
      },
    ],
    "resultsCount": 1,
    "status": "OK",
    "ticker": "MSFT",
  },
  "duration": 406,
  "headers": Object {
    "content-type": "application/json",
    "date": "Sat, 04 Dec 2021 21:37:55 GMT",
    "server": "nginx/1.19.2",
    "strict-transport-security": "max-age=15724800; includeSubDomains",
    "vary": "Accept-Encoding",
    "x-request-id": "6a2a6c28efc5fcf9e4b1f295f845bf91",
  },
  "ok": true,
  "originalError": null,
  "problem": null,
  "status": 200,
}

Answer 1

由于“results”是一个包含字典的数组，您可以使用 response.data.results['c'].

引用收盘值

Answer 2

结果是一个字典对象数组。包含“c”值的字典对象是数组的第一个元素。所以，你可以这样得到它

response.data.results[0].c

无法从 API 获取值

Cannot get a value from API

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