diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a6ef824
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/bazel-*
diff --git a/BUILD.bazel b/BUILD.bazel
new file mode 100644
index 0000000..e777585
--- /dev/null
+++ b/BUILD.bazel
@@ -0,0 +1,24 @@
+load("@bazel_gazelle//:def.bzl", "gazelle")
+
+gazelle(name = "gazelle")
+
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["main.go"],
+    importpath = "git.eve.moe/jackyyf/navigator",
+    visibility = ["//visibility:private"],
+    deps = [
+        "//ipgeo:go_default_library",
+        "//mapping:go_default_library",
+        "@com_github_ipipdotnet_ipdb_go//:go_default_library",
+    ],
+)
+
+go_binary(
+    name = "navigator",
+	pure = "on",
+    embed = [":go_default_library"],
+    visibility = ["//visibility:public"],
+)
diff --git a/WORKSPACE b/WORKSPACE
new file mode 100644
index 0000000..e4abcc9
--- /dev/null
+++ b/WORKSPACE
@@ -0,0 +1,43 @@
+load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+http_archive(
+    name = "io_bazel_rules_go",
+    urls = [
+        "https://storage.googleapis.com/bazel-mirror/github.com/bazelbuild/rules_go/releases/download/v0.20.3/rules_go-v0.20.3.tar.gz",
+        "https://github.com/bazelbuild/rules_go/releases/download/v0.20.3/rules_go-v0.20.3.tar.gz",
+    ],
+    sha256 = "e88471aea3a3a4f19ec1310a55ba94772d087e9ce46e41ae38ecebe17935de7b",
+)
+
+http_archive(
+    name = "bazel_gazelle",
+    urls = [
+        "https://storage.googleapis.com/bazel-mirror/github.com/bazelbuild/bazel-gazelle/releases/download/v0.19.1/bazel-gazelle-v0.19.1.tar.gz",
+        "https://github.com/bazelbuild/bazel-gazelle/releases/download/v0.19.1/bazel-gazelle-v0.19.1.tar.gz",
+    ],
+    sha256 = "86c6d481b3f7aedc1d60c1c211c6f76da282ae197c3b3160f54bd3a8f847896f",
+)
+
+load("@io_bazel_rules_go//go:deps.bzl", "go_rules_dependencies", "go_register_toolchains")
+
+go_rules_dependencies()
+
+go_register_toolchains()
+
+load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies", "go_repository")
+
+gazelle_dependencies()
+
+go_repository(
+    name = "com_github_ipipdotnet_ipdb_go",
+    importpath = "github.com/ipipdotnet/ipdb-go",
+    sum = "h1:Afa0qx/SgRevzIK8Qg1TevuD5M28kFLWbzPvU+GQJ08=",
+    version = "v1.2.0",
+)
+
+go_repository(
+    name = "net_starlark_go",
+    importpath = "go.starlark.net",
+    sum = "h1:ZP11CRSzO9uOTTOVkH6yodtI3kSY69vUID8lx8B0M3s=",
+    version = "v0.0.0-20191113183327-aaf7be003892",
+)
diff --git a/ipgeo/BUILD.bazel b/ipgeo/BUILD.bazel
new file mode 100644
index 0000000..e23abe2
--- /dev/null
+++ b/ipgeo/BUILD.bazel
@@ -0,0 +1,14 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["ipdb.go"],
+    importpath = "git.eve.moe/jackyyf/navigator/ipgeo",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//mapping/elf:go_default_library",
+        "@com_github_ipipdotnet_ipdb_go//:go_default_library",
+        "@net_starlark_go//starlark:go_default_library",
+        "@net_starlark_go//starlarkstruct:go_default_library",
+    ],
+)
diff --git a/main.go b/main.go
index f076d3d..1bf14ff 100644
--- a/main.go
+++ b/main.go
@@ -151,6 +151,27 @@ func main() {
 		log.Printf("%s => %s\n", ip, server)
 		fmt.Fprint(resp, server)
 	})
+	http.HandleFunc("/getNodes", func(resp http.ResponseWriter, req *http.Request) {
+		ip := req.FormValue("ip")
+		if net.ParseIP(ip).To4() == nil {
+			responseWithError(resp, http.StatusBadRequest, errIPv4Only)
+			return
+		}
+		nodes := mapping.GetNodes()
+		if nodes == nil {
+			responseWithJsonError(resp, http.StatusInternalServerError, "Unable to get nodes")
+			return
+		}
+		suffix := mapping.GetSuffix(ip)
+		resp.Header().Set("Content-Type", "application/json")
+		resp.WriteHeader(http.StatusOK)
+		jsonEncoder := json.NewEncoder(resp)
+		ret := make([]string, 0, len(nodes))
+		for _, node := range nodes {
+			ret = append(ret, node+suffix)
+		}
+		jsonEncoder.Encode(ret)
+	})
 	clientApi := http.NewServeMux()
 	http.Handle("/client/", http.StripPrefix("/client", clientApi))
 	clientV1Api := http.NewServeMux()
diff --git a/mapping/BUILD.bazel b/mapping/BUILD.bazel
new file mode 100644
index 0000000..8a97cb5
--- /dev/null
+++ b/mapping/BUILD.bazel
@@ -0,0 +1,9 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["map.go"],
+    importpath = "git.eve.moe/jackyyf/navigator/mapping",
+    visibility = ["//visibility:public"],
+    deps = ["//mapping/elf:go_default_library"],
+)
diff --git a/mapping/elf/BUILD.bazel b/mapping/elf/BUILD.bazel
new file mode 100644
index 0000000..160a443
--- /dev/null
+++ b/mapping/elf/BUILD.bazel
@@ -0,0 +1,9 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["core.go"],
+    importpath = "git.eve.moe/jackyyf/navigator/mapping/elf",
+    visibility = ["//visibility:public"],
+    deps = ["@net_starlark_go//starlark:go_default_library"],
+)