ashisgreat22
8651183540
Creates internal/spa package that: - Embeds React build output from cmd/kafka/dist/ - Provides HTTP handler for static file serving - Falls back to index.html for SPA client-side routing Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
56 lines
No EOL
1.4 KiB
Go
56 lines
No EOL
1.4 KiB
Go
package spa
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import (
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"embed"
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"io/fs"
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"net/http"
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"path"
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)
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//go:embed all:dist
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var distFS embed.FS
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// DistFS returns the embedded dist directory as an fs.FS.
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func DistFS() (fs.FS, error) {
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return fs.Sub(distFS, "dist")
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}
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// NewHandler returns an HTTP handler that:
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// - Serves static files from the embedded dist/ directory
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// - Falls back to index.html for SPA routing (any non-API path)
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func NewHandler() http.Handler {
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dist, err := DistFS()
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if err != nil {
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panic("spa: embedded dist not found: " + err.Error())
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}
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return &spaHandler{dist: dist}
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}
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type spaHandler struct {
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dist fs.FS
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}
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func (h *spaHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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// API paths are handled by Go API handlers - this should never be reached
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// since Go mux dispatches to specific handlers first. But if reached,
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// pass through to FileServer which will return 404 for unknown paths.
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// Try to serve the requested file first
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filePath := path.Clean(r.URL.Path)
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f, err := h.dist.Open(filePath)
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if err == nil {
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f.Close()
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// File exists - serve it via FileServer
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http.FileServer(http.FS(h.dist)).ServeHTTP(w, r)
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return
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}
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// Fallback to index.html for SPA routing
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indexFile, err := h.dist.Open("index.html")
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if err != nil {
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http.Error(w, "index.html not found in embedded files", http.StatusInternalServerError)
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return
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}
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indexFile.Close()
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http.FileServer(http.FS(h.dist)).ServeHTTP(w, r)
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} |