initial commit

backend/middleware/param.go

@@ -0,0 +1,33 @@
+package middleware
+
+import (
+	"strconv"
+
+	"git.red-panda.pet/pandaware/house/backend/router"
+	"github.com/google/uuid"
+)
+
+func ValidateUUIDParam(ctx *router.Context, key string) error {
+	param := ctx.Parameter(key)
+	if err := uuid.Validate(param); err != nil {
+		return ctx.Error(err, 400, "Bad path parameter "+key)
+	}
+
+	return nil
+}
+
+func ValidateIDParam(ctx *router.Context, key string) error {
+	param := ctx.Parameter(key)
+	v, err := strconv.ParseInt(param, 10, 64)
+	if err != nil {
+		return ctx.Error(err, 400, "Bad path parameter "+key)
+	}
+
+	ctx.With(paramsKey, v)
+	return nil
+}
+
+// TODO: expand this kinda api for more than just one param, better validation, etc.
+func ParamID(r router.ValidatedParamRoute, ctx *router.Context) int64 {
+	return ctx.Value(paramsKey).(int64)
+}