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Setup swagger and swagger UI properly

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This commit is contained in:
Kristoffer Dalby 2021-10-30 14:29:53 +00:00
parent 2b340e8fa4
commit 482a31b66b
2 changed files with 67 additions and 2 deletions
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4
app.go
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@ -381,8 +381,8 @@ func (h *Headscale) Serve() error {
r.POST("/machine/:id", h.RegistrationHandler)
r.GET("/apple", h.AppleMobileConfig)
r.GET("/apple/:platform", h.ApplePlatformConfig)
r.StaticFile("/swagger/swagger.json", "gen/openapiv2/v1/headscale.swagger.json")
r.GET("/swagger", SwaggerUI)
r.GET("/swagger/v1/openapiv2.json", SwaggerAPIv1)
api := r.Group("/api")
api.Use(h.httpAuthenticationMiddleware)

65
swagger.go Normal file
View file

@ -0,0 +1,65 @@
package headscale
import (
"bytes"
_ "embed"
"net/http"
"text/template"
"github.com/rs/zerolog/log"
"github.com/gin-gonic/gin"
)
//go:embed gen/openapiv2/headscale/v1/headscale.swagger.json
var apiV1JSON []byte
func SwaggerUI(c *gin.Context) {
t := template.Must(template.New("swagger").Parse(`
<html>
<head>
<link rel="stylesheet" type="text/css" href="https://unpkg.com/swagger-ui-dist@3/swagger-ui.css">
<script src="https://unpkg.com/swagger-ui-dist@3/swagger-ui-standalone-preset.js"></script>
<script src="https://unpkg.com/swagger-ui-dist@3/swagger-ui-bundle.js" charset="UTF-8"></script>
</head>
<body>
<div id="swagger-ui"></div>
<script>
window.addEventListener('load', (event) => {
const ui = SwaggerUIBundle({
url: "/swagger/v1/openapiv2.json",
dom_id: '#swagger-ui',
presets: [
SwaggerUIBundle.presets.apis,
SwaggerUIBundle.SwaggerUIStandalonePreset
],
plugins: [
SwaggerUIBundle.plugins.DownloadUrl
],
deepLinking: true,
// TODO(kradalby): Figure out why this does not work
// layout: "StandaloneLayout",
})
window.ui = ui
});
</script>
</body>
</html>`))
var payload bytes.Buffer
if err := t.Execute(&payload, struct{}{}); err != nil {
log.Error().
Caller().
Err(err).
Msg("Could not render Swagger")
c.Data(http.StatusInternalServerError, "text/html; charset=utf-8", []byte("Could not render Swagger"))
return
}
c.Data(http.StatusOK, "text/html; charset=utf-8", payload.Bytes())
}
func SwaggerAPIv1(c *gin.Context) {
c.Data(http.StatusOK, "application/json; charset=utf-8", apiV1JSON)
}