Add a new endpoint for listing slugs in a space (#401)

registry/finders.go

@@ -830,6 +830,34 @@ func GetAppsList(v *base.VirtualSpace, c *space.Space, opts *AppsListOptions) (i
 	return cursor, res, nil
 }
 
+func GetSlugs(c *space.Space) ([]string, error) {
+	db := c.AppsDB()
+	rows, err := db.AllDocs(context.Background(), map[string]interface{}{
+		"include_docs": true,
+		"limit":        10000,
+	})
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	slugs := make([]string, 0)
+	for rows.Next() {
+		if strings.HasPrefix(rows.ID(), "_design") {
+			continue
+		}
+
+		var app *App
+		if err := rows.ScanDoc(&app); err != nil {
+			return nil, err
+		}
+		slugs = append(slugs, app.Slug)
+	}
+
+	sort.Strings(slugs)
+	return slugs, nil
+}
+
 type appVersionEntry struct {
 	app            *App
 	cachedVersions *AppVersions

web/apps.go

@@ -372,3 +372,33 @@ func getAppsList(c echo.Context) error {
 
 	return writeJSON(c, j)
 }
+
+func getSlugsList(c echo.Context) error {
+	slugs, err := registry.GetSlugs(getSpace(c))
+	if err != nil {
+		return err
+	}
+	return writeJSON(c, slugs)
+}
+
+func filterGetSlugs(virtual base.VirtualSpace) echo.HandlerFunc {
+	if virtual.Filter == "select" {
+		return func(c echo.Context) error {
+			return writeJSON(c, virtual.Slugs)
+		}
+	}
+
+	return func(c echo.Context) error {
+		slugs, err := registry.GetSlugs(getSpace(c))
+		if err != nil {
+			return err
+		}
+		filtered := slugs[:0]
+		for _, slug := range slugs {
+			if virtual.AcceptApp(slug) {
+				filtered = append(filtered, slug)
+			}
+		}
+		return writeJSON(c, filtered)
+	}
+}

web/router.go

@@ -375,6 +375,7 @@ func Router() *echo.Echo {
 		g.POST("/:app", createVersion, jsonEndpoint, middleware.Gzip())
 
 		g.GET("", getAppsList, jsonEndpoint, middleware.Gzip())
+		g.GET("/slugs", getSlugsList, jsonEndpoint, middleware.Gzip())
 
 		g.HEAD("/pending", getPendingVersions, jsonEndpoint, middleware.Gzip())
 		g.GET("/pending", getPendingVersions, jsonEndpoint, middleware.Gzip())
@@ -425,6 +426,8 @@ func Router() *echo.Echo {
 
 		virtualGetAppsList := applyVirtualSpace(getAppsList, v, name)
 		g.GET("", virtualGetAppsList, jsonEndpoint, middleware.Gzip())
+		filteredGetSlugs := filterGetSlugs(v)
+		g.GET("/slugs", filteredGetSlugs, jsonEndpoint, middleware.Gzip())
 
 		filteredGetMaintenanceApps := filterGetMaintenanceApps(v)
 		g.GET("/maintenance", filteredGetMaintenanceApps, jsonEndpoint, middleware.Gzip())