aw/go-chart
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testserver tweaks.

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This commit is contained in:
Will Charczuk 2016-07-09 09:11:47 -07:00
parent 80d6be9849
commit f22f247d3b
1 changed files with 58 additions and 41 deletions
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99
testserver/main.go
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@ -8,50 +8,67 @@ import (
"github.com/wcharczuk/go-web"
)
func chartHandler(rc *web.RequestContext) web.ControllerResult {
format, err := rc.RouteParameter("format")
if err != nil {
format = "png"
}
if format == "png" {
rc.Response.Header().Set("Content-Type", "image/png")
} else {
rc.Response.Header().Set("Content-Type", "image/svg+xml")
}
c := chart.Chart{
Title: "A Test Chart",
TitleStyle: chart.Style{
Show: true,
},
Width: 640,
Height: 480,
Axes: chart.Style{
Show: true,
StrokeWidth: 1.0,
},
YRange: chart.Range{
Min: 0.0,
Max: 7.0,
},
FinalValueLabel: chart.Style{
Show: true,
},
Series: []chart.Series{
chart.ContinuousSeries{
Name: "a",
XValues: []float64{1.0, 2.0, 3.0, 4.0},
YValues: []float64{2.5, 5.0, 2.0, 3.3},
},
chart.ContinuousSeries{
Name: "b",
XValues: []float64{3.0, 4.0, 5.0, 6.0},
YValues: []float64{6.0, 5.0, 4.0, 1.0},
},
},
}
if format == "png" {
err = c.Render(chart.PNG, rc.Response)
} else {
err = c.Render(chart.SVG, rc.Response)
}
if err != nil {
return rc.API().InternalError(err)
}
rc.Response.WriteHeader(http.StatusOK)
return nil
}
func main() {
app := web.New()
app.SetName("Chart Test Server")
app.SetLogger(web.NewStandardOutputLogger())
app.GET("/", func(rc *web.RequestContext) web.ControllerResult {
rc.Response.Header().Set("Content-Type", "image/png")
c := chart.Chart{
Title: "A Test Chart",
TitleStyle: chart.Style{
Show: true,
},
Width: 640,
Height: 480,
Axes: chart.Style{
Show: true,
StrokeWidth: 1.0,
},
YRange: chart.Range{
Min: 0.0,
Max: 7.0,
},
FinalValueLabel: chart.Style{
Show: true,
},
Series: []chart.Series{
chart.ContinuousSeries{
Name: "a",
XValues: []float64{1.0, 2.0, 3.0, 4.0},
YValues: []float64{2.5, 5.0, 2.0, 3.3},
},
chart.ContinuousSeries{
Name: "b",
XValues: []float64{3.0, 4.0, 5.0, 6.0},
YValues: []float64{6.0, 5.0, 4.0, 1.0},
},
},
}
err := c.Render(chart.PNG, rc.Response)
if err != nil {
return rc.API().InternalError(err)
}
rc.Response.WriteHeader(http.StatusOK)
return nil
})
app.GET("/", chartHandler)
app.GET("/:format", chartHandler)
log.Fatal(app.Start())
}