diff --git a/.ijwb/.idea/sqldialects.xml b/.ijwb/.idea/sqldialects.xml
new file mode 100644
index 0000000..288481b
--- /dev/null
+++ b/.ijwb/.idea/sqldialects.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="file://$PROJECT_DIR$/../schema.sql" dialect="PostgreSQL" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/BUILD.bazel b/BUILD.bazel
index eb96ae4..11117c9 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -14,6 +14,7 @@ go_library(
         "//api/navigator:go_default_library",
         "//ipgeo:go_default_library",
         "//mapping:go_default_library",
+        "@com_github_sirupsen_logrus//:go_default_library",
     ],
 )
 
diff --git a/WORKSPACE b/WORKSPACE
index e4abcc9..c3b68ce 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -41,3 +41,332 @@ go_repository(
     sum = "h1:ZP11CRSzO9uOTTOVkH6yodtI3kSY69vUID8lx8B0M3s=",
     version = "v0.0.0-20191113183327-aaf7be003892",
 )
+
+go_repository(
+    name = "com_github_cockroachdb_apd",
+    importpath = "github.com/cockroachdb/apd",
+    sum = "h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=",
+    version = "v1.1.0",
+)
+
+go_repository(
+    name = "com_github_coreos_go_systemd",
+    importpath = "github.com/coreos/go-systemd",
+    sum = "h1:JOrtw2xFKzlg+cbHpyrpLDmnN1HqhBfnX7WDiW7eG2c=",
+    version = "v0.0.0-20190719114852-fd7a80b32e1f",
+)
+
+go_repository(
+    name = "com_github_creack_pty",
+    importpath = "github.com/creack/pty",
+    sum = "h1:6pwm8kMQKCmgUg0ZHTm5+/YvRK0s3THD/28+T6/kk4A=",
+    version = "v1.1.7",
+)
+
+go_repository(
+    name = "com_github_davecgh_go_spew",
+    importpath = "github.com/davecgh/go-spew",
+    sum = "h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=",
+    version = "v1.1.1",
+)
+
+go_repository(
+    name = "com_github_go_stack_stack",
+    importpath = "github.com/go-stack/stack",
+    sum = "h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=",
+    version = "v1.8.0",
+)
+
+go_repository(
+    name = "com_github_gofrs_uuid",
+    importpath = "github.com/gofrs/uuid",
+    sum = "h1:y12jRkkFxsd7GpqdSZ+/KCs/fJbqpEXSGd4+jfEaewE=",
+    version = "v3.2.0+incompatible",
+)
+
+go_repository(
+    name = "com_github_jackc_chunkreader",
+    importpath = "github.com/jackc/chunkreader",
+    sum = "h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=",
+    version = "v1.0.0",
+)
+
+go_repository(
+    name = "com_github_jackc_chunkreader_v2",
+    importpath = "github.com/jackc/chunkreader/v2",
+    sum = "h1:DUwgMQuuPnS0rhMXenUtZpqZqrR/30NWY+qQvTpSvEs=",
+    version = "v2.0.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgconn",
+    importpath = "github.com/jackc/pgconn",
+    sum = "h1:6Q01OMLPPkmcCZVB9oRT6ACgo6nTEaNFQ97O79A8NuA=",
+    version = "v1.2.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgio",
+    importpath = "github.com/jackc/pgio",
+    sum = "h1:g12B9UwVnzGhueNavwioyEEpAmqMe1E/BN9ES+8ovkE=",
+    version = "v1.0.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgmock",
+    importpath = "github.com/jackc/pgmock",
+    sum = "h1:JVX6jT/XfzNqIjye4717ITLaNwV9mWbJx0dLCpcRzdA=",
+    version = "v0.0.0-20190831213851-13a1b77aafa2",
+)
+
+go_repository(
+    name = "com_github_jackc_pgpassfile",
+    importpath = "github.com/jackc/pgpassfile",
+    sum = "h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=",
+    version = "v1.0.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgproto3",
+    importpath = "github.com/jackc/pgproto3",
+    sum = "h1:FYYE4yRw+AgI8wXIinMlNjBbp/UitDJwfj5LqqewP1A=",
+    version = "v1.1.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgproto3_v2",
+    importpath = "github.com/jackc/pgproto3/v2",
+    sum = "h1:FApgMJ/GtaXfI0s8Lvd0kaLaRwMOhs4VH92pwkwQQvU=",
+    version = "v2.0.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgtype",
+    importpath = "github.com/jackc/pgtype",
+    sum = "h1:aZwrtaSe314VgSGmKvggULa2TavoD1jWVsxj9Zdltek=",
+    version = "v1.1.0",
+)
+
+go_repository(
+    name = "com_github_jackc_pgx_v4",
+    importpath = "github.com/jackc/pgx/v4",
+    sum = "h1:vcUwfx7/L53CmX3UKANy34iHs69+11iVuwMO+jY68bY=",
+    version = "v4.2.0",
+)
+
+go_repository(
+    name = "com_github_jackc_puddle",
+    importpath = "github.com/jackc/puddle",
+    sum = "h1:rbjAshlgKscNa7j0jAM0uNQflis5o2XUogPMVAwtcsM=",
+    version = "v1.0.0",
+)
+
+go_repository(
+    name = "com_github_konsorten_go_windows_terminal_sequences",
+    importpath = "github.com/konsorten/go-windows-terminal-sequences",
+    sum = "h1:DB17ag19krx9CFsz4o3enTrPXyIXCl+2iCXH/aMAp9s=",
+    version = "v1.0.2",
+)
+
+go_repository(
+    name = "com_github_kr_pretty",
+    importpath = "github.com/kr/pretty",
+    sum = "h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=",
+    version = "v0.1.0",
+)
+
+go_repository(
+    name = "com_github_kr_pty",
+    importpath = "github.com/kr/pty",
+    sum = "h1:AkaSdXYQOWeaO3neb8EM634ahkXXe3jYbVh/F9lq+GI=",
+    version = "v1.1.8",
+)
+
+go_repository(
+    name = "com_github_kr_text",
+    importpath = "github.com/kr/text",
+    sum = "h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=",
+    version = "v0.1.0",
+)
+
+go_repository(
+    name = "com_github_lib_pq",
+    importpath = "github.com/lib/pq",
+    sum = "h1:LXpIM/LZ5xGFhOpXAQUIMM1HdyqzVYM13zNdjCEEcA0=",
+    version = "v1.2.0",
+)
+
+go_repository(
+    name = "com_github_mattn_go_colorable",
+    importpath = "github.com/mattn/go-colorable",
+    sum = "h1:/bC9yWikZXAL9uJdulbSfyVNIR3n3trXl+v8+1sx8mU=",
+    version = "v0.1.2",
+)
+
+go_repository(
+    name = "com_github_mattn_go_isatty",
+    importpath = "github.com/mattn/go-isatty",
+    sum = "h1:d5US/mDsogSGW37IV293h//ZFaeajb69h+EHFsv2xGg=",
+    version = "v0.0.9",
+)
+
+go_repository(
+    name = "com_github_pkg_errors",
+    importpath = "github.com/pkg/errors",
+    sum = "h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=",
+    version = "v0.8.1",
+)
+
+go_repository(
+    name = "com_github_pmezard_go_difflib",
+    importpath = "github.com/pmezard/go-difflib",
+    sum = "h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=",
+    version = "v1.0.0",
+)
+
+go_repository(
+    name = "com_github_rs_xid",
+    importpath = "github.com/rs/xid",
+    sum = "h1:mhH9Nq+C1fY2l1XIpgxIiUOfNpRBYH1kKcr+qfKgjRc=",
+    version = "v1.2.1",
+)
+
+go_repository(
+    name = "com_github_rs_zerolog",
+    importpath = "github.com/rs/zerolog",
+    sum = "h1:uPRuwkWF4J6fGsJ2R0Gn2jB1EQiav9k3S6CSdygQJXY=",
+    version = "v1.15.0",
+)
+
+go_repository(
+    name = "com_github_satori_go_uuid",
+    importpath = "github.com/satori/go.uuid",
+    sum = "h1:0uYX9dsZ2yD7q2RtLRtPSdGDWzjeM3TbMJP9utgA0ww=",
+    version = "v1.2.0",
+)
+
+go_repository(
+    name = "com_github_shopspring_decimal",
+    importpath = "github.com/shopspring/decimal",
+    sum = "h1:pntxY8Ary0t43dCZ5dqY4YTJCObLY1kIXl0uzMv+7DE=",
+    version = "v0.0.0-20180709203117-cd690d0c9e24",
+)
+
+go_repository(
+    name = "com_github_sirupsen_logrus",
+    importpath = "github.com/sirupsen/logrus",
+    sum = "h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=",
+    version = "v1.4.2",
+)
+
+go_repository(
+    name = "com_github_stretchr_objx",
+    importpath = "github.com/stretchr/objx",
+    sum = "h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=",
+    version = "v0.2.0",
+)
+
+go_repository(
+    name = "com_github_stretchr_testify",
+    importpath = "github.com/stretchr/testify",
+    sum = "h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=",
+    version = "v1.4.0",
+)
+
+go_repository(
+    name = "com_github_zenazn_goji",
+    importpath = "github.com/zenazn/goji",
+    sum = "h1:RSQQAbXGArQ0dIDEq+PI6WqN6if+5KHu6x2Cx/GXLTQ=",
+    version = "v0.9.0",
+)
+
+go_repository(
+    name = "in_gopkg_check_v1",
+    importpath = "gopkg.in/check.v1",
+    sum = "h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=",
+    version = "v1.0.0-20180628173108-788fd7840127",
+)
+
+go_repository(
+    name = "in_gopkg_inconshreveable_log15_v2",
+    importpath = "gopkg.in/inconshreveable/log15.v2",
+    sum = "h1:RlWgLqCMMIYYEVcAR5MDsuHlVkaIPDAF+5Dehzg8L5A=",
+    version = "v2.0.0-20180818164646-67afb5ed74ec",
+)
+
+go_repository(
+    name = "in_gopkg_yaml_v2",
+    importpath = "gopkg.in/yaml.v2",
+    sum = "h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=",
+    version = "v2.2.2",
+)
+
+go_repository(
+    name = "org_golang_x_crypto",
+    importpath = "golang.org/x/crypto",
+    sum = "h1:nVJ3guKA9qdkEQ3TUdXI9QSINo2CUPM/cySEvw2w8I0=",
+    version = "v0.0.0-20200109152110-61a87790db17",
+)
+
+go_repository(
+    name = "org_golang_x_net",
+    importpath = "golang.org/x/net",
+    sum = "h1:fHDIZ2oxGnUZRN6WgWFCbYBjH9uqVPRCUVUDhs0wnbA=",
+    version = "v0.0.0-20190813141303-74dc4d7220e7",
+)
+
+go_repository(
+    name = "org_golang_x_sync",
+    importpath = "golang.org/x/sync",
+    sum = "h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=",
+    version = "v0.0.0-20190423024810-112230192c58",
+)
+
+go_repository(
+    name = "org_golang_x_sys",
+    importpath = "golang.org/x/sys",
+    sum = "h1:ng0gs1AKnRRuEMZoTLLlbOd+C17zUDepwGQBb/n+JVg=",
+    version = "v0.0.0-20190826190057-c7b8b68b1456",
+)
+
+go_repository(
+    name = "org_golang_x_text",
+    importpath = "golang.org/x/text",
+    sum = "h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=",
+    version = "v0.3.2",
+)
+
+go_repository(
+    name = "org_golang_x_tools",
+    importpath = "golang.org/x/tools",
+    sum = "h1:ESK9Jb5JOE+y4u+ozMQeXfMHwEHm6zVbaDQkeaj6wI4=",
+    version = "v0.0.0-20190823170909-c4a336ef6a2f",
+)
+
+go_repository(
+    name = "org_golang_x_xerrors",
+    importpath = "golang.org/x/xerrors",
+    sum = "h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=",
+    version = "v0.0.0-20190717185122-a985d3407aa7",
+)
+
+go_repository(
+    name = "org_uber_go_atomic",
+    importpath = "go.uber.org/atomic",
+    sum = "h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=",
+    version = "v1.4.0",
+)
+
+go_repository(
+    name = "org_uber_go_multierr",
+    importpath = "go.uber.org/multierr",
+    sum = "h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=",
+    version = "v1.1.0",
+)
+
+go_repository(
+    name = "org_uber_go_zap",
+    importpath = "go.uber.org/zap",
+    sum = "h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=",
+    version = "v1.10.0",
+)
diff --git a/api/beacon/v1/BUILD.bazel b/api/beacon/v1/BUILD.bazel
index 5acba9f..2b7b49f 100644
--- a/api/beacon/v1/BUILD.bazel
+++ b/api/beacon/v1/BUILD.bazel
@@ -8,6 +8,7 @@ go_library(
     deps = [
         "//api/beacon:go_default_library",
         "//mapping:go_default_library",
+        "//mapping/firefly:go_default_library",
         "//utils:go_default_library",
     ],
 )
diff --git a/api/beacon/v1/api.go b/api/beacon/v1/api.go
index 9d914aa..b66677d 100644
--- a/api/beacon/v1/api.go
+++ b/api/beacon/v1/api.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"git.eve.moe/jackyyf/navigator/api/beacon"
 	"git.eve.moe/jackyyf/navigator/mapping"
+	"git.eve.moe/jackyyf/navigator/mapping/firefly"
 	"git.eve.moe/jackyyf/navigator/utils"
 	"net/http"
 )
@@ -23,11 +24,25 @@ func init() {
 		suffix := mapping.GetSuffix(host)
 		resp.Header().Set("Content-Type", "application/json")
 		resp.WriteHeader(http.StatusOK)
-		jsonEncoder := json.NewEncoder(resp)
-		jsonEncoder.Encode(map[string]interface{}{
+		json.NewEncoder(resp).Encode(map[string]interface{}{
 			"nodes":  nodes,
 			"suffix": suffix,
 		})
 	})
+	serveMux.HandleFunc("/submit", func(resp http.ResponseWriter, req *http.Request) {
+		if req.Method != "POST" {
+			utils.ResponseWithJsonError(resp, http.StatusMethodNotAllowed, "Method is not accepted with this method.")
+			return
+		}
+		request := make(map[string]float64)
+		decoder := json.NewDecoder(req.Body)
+		if err := decoder.Decode(&request); err != nil {
+			utils.ResponseWithJsonError(resp, http.StatusBadRequest, "Malformed JSON payload.")
+			return
+		}
+		remoteIp := utils.GetRemoteIP(req)
+		go firefly.AddSpeedTestResult(remoteIp, request)
+		resp.WriteHeader(http.StatusOK)
+	})
 	beacon.RegisterApi("v1", serveMux)
 }
diff --git a/go.mod b/go.mod
index 017f42c..a5cb8ea 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,8 @@ go 1.13
 
 require (
 	github.com/ipipdotnet/ipdb-go v1.2.0
+	github.com/jackc/pgx/v4 v4.2.0
+	github.com/sirupsen/logrus v1.4.2
 	go.starlark.net v0.0.0-20191113183327-aaf7be003892
+	golang.org/x/crypto v0.0.0-20200109152110-61a87790db17 // indirect
 )
diff --git a/go.sum b/go.sum
index 5923efc..82ac2f2 100644
--- a/go.sum
+++ b/go.sum
@@ -1,4 +1,133 @@
+github.com/cockroachdb/apd v1.1.0 h1:3LFP3629v+1aKXU5Q37mxmRxX/pIu1nijXydLShEq5I=
+github.com/cockroachdb/apd v1.1.0/go.mod h1:8Sl8LxpKi29FqWXR16WEFZRNSz3SoPzUzeMeY4+DwBQ=
+github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
+github.com/coreos/go-systemd v0.0.0-20190719114852-fd7a80b32e1f/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
+github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/gofrs/uuid v3.2.0+incompatible h1:y12jRkkFxsd7GpqdSZ+/KCs/fJbqpEXSGd4+jfEaewE=
+github.com/gofrs/uuid v3.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/ipipdotnet/ipdb-go v1.2.0 h1:Afa0qx/SgRevzIK8Qg1TevuD5M28kFLWbzPvU+GQJ08=
 github.com/ipipdotnet/ipdb-go v1.2.0/go.mod h1:6SFLNyXDBF6q99FQvbOZJQCc2rdPrB1V5DSy4S83RSw=
+github.com/jackc/chunkreader v1.0.0 h1:4s39bBR8ByfqH+DKm8rQA3E1LHZWB9XWcrz8fqaZbe0=
+github.com/jackc/chunkreader v1.0.0/go.mod h1:RT6O25fNZIuasFJRyZ4R/Y2BbhasbmZXF9QQ7T3kePo=
+github.com/jackc/chunkreader/v2 v2.0.0 h1:DUwgMQuuPnS0rhMXenUtZpqZqrR/30NWY+qQvTpSvEs=
+github.com/jackc/chunkreader/v2 v2.0.0/go.mod h1:odVSm741yZoC3dpHEUXIqA9tQRhFrgOHwnPIn9lDKlk=
+github.com/jackc/pgconn v0.0.0-20190420214824-7e0022ef6ba3/go.mod h1:jkELnwuX+w9qN5YIfX0fl88Ehu4XC3keFuOJJk9pcnA=
+github.com/jackc/pgconn v0.0.0-20190824142844-760dd75542eb/go.mod h1:lLjNuW/+OfW9/pnVKPazfWOgNfH2aPem8YQ7ilXGvJE=
+github.com/jackc/pgconn v0.0.0-20190831204454-2fabfa3c18b7/go.mod h1:ZJKsE/KZfsUgOEh9hBm+xYTstcNHg7UPMVJqRfQxq4s=
+github.com/jackc/pgconn v1.2.0 h1:6Q01OMLPPkmcCZVB9oRT6ACgo6nTEaNFQ97O79A8NuA=
+github.com/jackc/pgconn v1.2.0/go.mod h1:GgY/Lbj1VonNaVdNUHs9AwWom3yP2eymFQ1C8z9r/Lk=
+github.com/jackc/pgio v1.0.0 h1:g12B9UwVnzGhueNavwioyEEpAmqMe1E/BN9ES+8ovkE=
+github.com/jackc/pgio v1.0.0/go.mod h1:oP+2QK2wFfUWgr+gxjoBH9KGBb31Eio69xUb0w5bYf8=
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diff --git a/main.go b/main.go
index dce42c9..2acd9c6 100644
--- a/main.go
+++ b/main.go
@@ -6,9 +6,11 @@ import (
 	_ "git.eve.moe/jackyyf/navigator/api/navigator"
 	"git.eve.moe/jackyyf/navigator/ipgeo"
 	"git.eve.moe/jackyyf/navigator/mapping"
+	"github.com/sirupsen/logrus"
 	"log"
 	"net/http"
 	_ "net/http/pprof"
+	"os"
 )
 
 var (
@@ -17,6 +19,8 @@ var (
 
 func main() {
 	flag.Parse()
+	logrus.SetReportCaller(true)
+	logrus.SetOutput(os.Stderr)
 	ipgeo.Initialize()
 	mapping.Initialize()
 	log.Println("HTTP server is running on", *listen_spec)
diff --git a/mapping/BUILD.bazel b/mapping/BUILD.bazel
index 8a97cb5..63fa16a 100644
--- a/mapping/BUILD.bazel
+++ b/mapping/BUILD.bazel
@@ -5,5 +5,8 @@ go_library(
     srcs = ["map.go"],
     importpath = "git.eve.moe/jackyyf/navigator/mapping",
     visibility = ["//visibility:public"],
-    deps = ["//mapping/elf:go_default_library"],
+    deps = [
+        "//mapping/elf:go_default_library",
+        "//mapping/firefly:go_default_library",
+    ],
 )
diff --git a/mapping/firefly/BUILD.bazel b/mapping/firefly/BUILD.bazel
new file mode 100644
index 0000000..be64d53
--- /dev/null
+++ b/mapping/firefly/BUILD.bazel
@@ -0,0 +1,13 @@
+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/firefly",
+    visibility = ["//visibility:public"],
+    deps = [
+        "@com_github_jackc_pgx_v4//:go_default_library",
+        "@com_github_jackc_pgx_v4//pgxpool:go_default_library",
+        "@com_github_sirupsen_logrus//:go_default_library",
+    ],
+)
diff --git a/mapping/firefly/core.go b/mapping/firefly/core.go
new file mode 100644
index 0000000..e36d197
--- /dev/null
+++ b/mapping/firefly/core.go
@@ -0,0 +1,70 @@
+package firefly
+
+import (
+	"context"
+	"flag"
+	"github.com/jackc/pgx/v4"
+	"github.com/jackc/pgx/v4/pgxpool"
+	"github.com/sirupsen/logrus"
+)
+
+var (
+	pgsqlConn = flag.String("pgsql", "", "Connection spec for postgresql database")
+	pool      *pgxpool.Pool
+)
+
+func Initialize() {
+	var err error
+	config, err := pgxpool.ParseConfig(*pgsqlConn)
+	if err != nil {
+		panic(err)
+	}
+	if config.MaxConns == 0 {
+		config.MaxConns = 8
+	}
+	if pool, err = pgxpool.Connect(context.Background(), *pgsqlConn); err != nil {
+		panic(err)
+	}
+	if conn, err := pool.Acquire(context.Background()); err != nil {
+		panic(err)
+	} else {
+		conn.Release()
+	}
+}
+
+func AddSpeedTestResult(ip string, speed map[string]float64) {
+	conn, err := pool.Acquire(context.Background())
+	if err != nil {
+		logrus.WithError(err).Error("Unable to get database connection")
+		return
+	}
+	defer conn.Release()
+	tx, err := conn.Begin(context.Background())
+	if err != nil {
+		logrus.WithError(err).Error("Unable to start database transaction")
+		return
+	}
+	row := tx.QueryRow(context.Background(),
+		"INSERT INTO speedtest_entry (id, ip, timestamp) VALUES (DEFAULT, $1, now()) RETURNING id", ip)
+	var id int64
+	if err = row.Scan(&id); err != nil {
+		logrus.WithError(err).Error("Unable to insert new speedtest result entry")
+		_ = tx.Rollback(context.Background())
+		return
+	}
+	batch := &pgx.Batch{}
+	for name, value := range speed {
+		batch.Queue("INSERT INTO speedtest_result (entry_id, node, speed) VALUES ($1, $2, $3)",
+			id, name, value)
+	}
+	results := tx.SendBatch(context.Background(), batch)
+	if err = results.Close(); err != nil {
+		logrus.WithError(err).Error("Unable to insert speedtest results")
+		_ = tx.Rollback(context.Background())
+		return
+	}
+	if err = tx.Commit(context.Background()); err != nil {
+		logrus.WithError(err).Error("Unable to commit the database transaction")
+		_ = tx.Rollback(context.Background())
+	}
+}
diff --git a/mapping/map.go b/mapping/map.go
index 92c88d1..d2cafbf 100644
--- a/mapping/map.go
+++ b/mapping/map.go
@@ -3,6 +3,7 @@ package mapping
 import (
 	"flag"
 	"git.eve.moe/jackyyf/navigator/mapping/elf"
+	"git.eve.moe/jackyyf/navigator/mapping/firefly"
 )
 
 var (
@@ -15,6 +16,7 @@ var (
 
 func Initialize() {
 	elf.Initialize()
+	firefly.Initialize()
 }
 
 func Get(ip string) string {
diff --git a/schema.sql b/schema.sql
new file mode 100644
index 0000000..cb81f28
--- /dev/null
+++ b/schema.sql
@@ -0,0 +1,12 @@
+CREATE TABLE speedtest_entry (
+    id bigserial PRIMARY KEY,
+    ip inet,
+    timestamp timestamptz
+);
+
+CREATE TABLE speedtest_result (
+    id bigserial PRIMARY KEY,
+    entry_id bigint REFERENCES speedtest_entry (id),
+    node varchar(32),
+    speed float8
+);