37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
package handler
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import (
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"github.com/fastenhealth/fasten-onprem/backend/pkg"
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"github.com/fastenhealth/fasten-onprem/backend/pkg/web/sse"
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"github.com/gin-gonic/gin"
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"io"
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)
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// SSEStream is a handler for the server sent event stream (notifications from background processes)
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// see: https://github.com/gin-gonic/examples/blob/master/server-sent-event/main.go
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// see: https://stackoverflow.com/questions/66327142/selectively-send-event-to-particular-clients
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//
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// test using:
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// curl -N -H "Authorization: Bearer xxxxx" http://localhost:9090/api/secure/sse/stream
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func SSEStream(c *gin.Context) {
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//logger := c.MustGet(pkg.ContextKeyTypeLogger).(*logrus.Entry)
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//databaseRepo := c.MustGet(pkg.ContextKeyTypeDatabase).(database.DatabaseRepository)
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v, ok := c.Get(pkg.ContextKeyTypeSSEClientChannel)
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if !ok {
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return
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}
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clientChan, ok := v.(sse.ClientChan)
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if !ok {
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return
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}
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c.Stream(func(w io.Writer) bool {
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// Stream message to client from message channel
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if msg, ok := <-clientChan; ok {
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c.SSEvent("message", msg)
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return true
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}
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return false
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})
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}
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