public ChartService(ILogger <ChartService> logger, PlotlyClient plotlyClient)
{
_logger = logger;
_plotlyClient = plotlyClient;
}
public ChartsModule(HttpClient client)
{
_plotlyClient = new PlotlyClient(client, _credProvider);
}
static async Task Main(string[] args)
{
/*
* Example 1
*
* Example of how to generate a chart using the built-in PlotlyChart type
* and save it to a PNG file
*/
// very basic example, hardcoding credentials is HIGHLY not recommended
PlotlyCredentials Func() => new PlotlyCredentials
{
Username = "******", Token = "plotly_token"
};
// create a plotly client that will communicate with Plotly API
PlotlyClient plotlyClient = new PlotlyClient(Client, Func);
// create a chart
PlotlyChart myChart = new PlotlyChart
{
Figure = new Figure
{
Data = new ArrayList {
new BarTrace
{
X = new ArrayList {
1, 2, 3
},
Y = new ArrayList {
1, 2, 3
},
}, new BarTrace
{
X = new ArrayList {
1, 2, 3
},
Y = new ArrayList {
1, 2, 3
},
}
},
},
Height = 1000,
Width = 1000
};
// send the chart to Plotly to compute an image and receive it as a PNG file as byte array
byte[] myImg = await plotlyClient.GetChartAsByteArray(myChart);
// save it to a file
var imgStream = new MemoryStream(myImg);
using (var fileStream = File.Create("example1.png"))
{
imgStream.CopyTo(fileStream);
}
Thread.Sleep(2000);
/*
* Example 2
*
* Example of how to generate a chart using a JSON object string
* and save it to a PNG file
*/
// must be escaped
var escapedJsonObjectString = "{\"figure\": {\"data\": [{\"y\": [10, 10, 2, 20]}], \"layout\": {\"width\": 700}}, \"width\": 1000, \"height\": 500, \"format\": \"png\", \"encoded\": false}";
byte[] myImg2 = await plotlyClient.GetChartAsByteArray(escapedJsonObjectString);
// save it to a file
MemoryStream imgStream2 = new MemoryStream(myImg2);
using (FileStream fileStream = File.Create("example2.png"))
{
imgStream2.CopyTo(fileStream);
}
}
