What is the method for defining field names in Highcharts?

Having experience with Kendo UI charts, I am new to highcharts. In Kendo, we could specify the fieldname for plotting the chart like this:

series: [{
    name: "steps",
    field: "steps",
    categoryField: "createddate"
}]

We could also define the dataSource as follows:

dataSource: dSource

where dSource is an AJAX URL.

I couldn't find a similar approach in the tutorial. The JSON data I have is shown below:

[{"ActivitySummaryKey":174000,
    "id":"kkse2",
    "activityscore":-,
    "activitycalories":456,
    "caloriesBMR":1017,
    "caloriesOut":1412,
    "distances":1.57828236,
    "elevation":0,
    "fairlyActiveminutes":34,
    "floors":0,
    "lightlyActiveMinutes":28,
    "marginalCalories":334,
    "sedentaryMinutes":827,
    "steps":5077,
    "veryActiveMinutes":26,
    "trackersteps":0,
    "trackerdistances":0,
    "trackerfloors":0,
    "trackerelevation":0,
    "trackerActivityCalories":0,
    "trackerCaloriesOut":0,
    "trackerMinutesSedentary":0,
    "trackerminutesLightlyActive":0,
    "trackerminutesFairlyActive":0,
    "trackerminutesVeryActive":0,
    "createddate":"9/17/2014 12:00:00 AM",
    "distanceunit":"Miles"
}]

I aim to plot steps on the y-axis and created date on the x-axis.

Any suggestions on how to achieve this with highcharts?

javascripthighcharts

Answer №1

Utilizing the high-charts data formats is recommended. Refer to series.data for more information.

In order for your points to be visible, ensure that x and y values are set using JSON data (steps and createddate). Additionally, date parsing is necessary (similar to using Date.UTC()).

The expected format for Highcharts is as follows:

[{
    "ActivitySummaryKey":174000,
    "id":"kkse2",
    "activityscore":-,
    "activitycalories":456,
    "caloriesBMR":1017,
    "caloriesOut":1412,
    "distances":1.57828236,
    "elevation":0,
    "fairlyActiveminutes":34,
    "floors":0,
    "lightlyActiveMinutes":28,
    "marginalCalories":334,
    "sedentaryMinutes":827,
    "steps":5077,
    "veryActiveMinutes":26,
    "trackersteps":0,
    "trackerdistances":0,
    "trackerfloors":0,
    "trackerelevation":0,
    "trackerActivityCalories":0,
    "trackerCaloriesOut":0,
    "trackerMinutesSedentary":0,
    "trackerminutesLightlyActive":0,
    "trackerminutesFairlyActive":0,
    "trackerminutesVeryActive":0,
    "createddate":"9/17/2014 12:00:00 AM",
    "distanceunit":"Miles",
    "x": 1410904800000,      // timestamp in ms for Highcharts, extracted from "createdate"
    "y": 5077                // y-value for Highcharts
}]

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