55 lines
1.3 KiB
Go
55 lines
1.3 KiB
Go
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package main
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import (
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"context"
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"io"
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"math/rand"
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"net/http"
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"github.com/a-h/templ"
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"github.com/go-echarts/go-echarts/v2/charts"
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"github.com/go-echarts/go-echarts/v2/opts"
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)
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func generateBarItems() []opts.BarData {
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items := make([]opts.BarData, 0)
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for i := 0; i < 7; i++ {
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items = append(items, opts.BarData{Value: rand.Intn(300)})
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}
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return items
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}
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func createBarChart() *charts.Bar {
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bar := charts.NewBar()
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bar.SetGlobalOptions(charts.WithTitleOpts(opts.Title{
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Title: "Bar chart",
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Subtitle: "That works well with templ",
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}))
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bar.SetXAxis([]string{"Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"}).
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AddSeries("Category A", generateBarItems()).
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AddSeries("Category B", generateBarItems())
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return bar
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}
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// The charts all have a `Render(w io.Writer) error` method on them.
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// That method is very similar to templ's Render method.
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type Renderable interface {
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Render(w io.Writer) error
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}
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// So lets adapt it.
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func ConvertChartToTemplComponent(chart Renderable) templ.Component {
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return templ.ComponentFunc(func(ctx context.Context, w io.Writer) error {
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return chart.Render(w)
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})
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}
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func main() {
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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chart := createBarChart()
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h := templ.Handler(Home(chart))
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h.ServeHTTP(w, r)
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})
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http.ListenAndServe("localhost:3000", nil)
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}
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