🎉 Initial Commit

pkg/internal/server/api/expand_link_api.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"encoding/base64"
+	"sync"
+
+	"git.solsynth.dev/hypernet/reader/pkg/internal/services"
+	"github.com/gofiber/fiber/v2"
+)
+
+var expandInProgress sync.Map
+
+func getLinkMeta(c *fiber.Ctx) error {
+	targetEncoded := c.Params("*1")
+	targetRaw, _ := base64.StdEncoding.DecodeString(targetEncoded)
+
+	if ch, loaded := expandInProgress.LoadOrStore(targetEncoded, make(chan struct{})); loaded {
+		// If the request is already in progress, wait for it to complete
+		<-ch.(chan struct{})
+	} else {
+		// If this is the first request, process it and signal others
+		defer func() {
+			close(ch.(chan struct{}))
+			expandInProgress.Delete(targetEncoded)
+		}()
+	}
+
+	if meta, err := services.ScrapLink(string(targetRaw)); err != nil {
+		return fiber.NewError(fiber.StatusBadRequest, err.Error())
+	} else {
+		return c.JSON(meta)
+	}
+}

pkg/internal/server/api/index.go

@@ -0,0 +1,12 @@
+package api
+
+import (
+	"github.com/gofiber/fiber/v2"
+)
+
+func MapAPIs(app *fiber.App, baseURL string) {
+	api := app.Group(baseURL).Name("API")
+	{
+		api.Get("/link/*", getLinkMeta)
+	}
+}