feat: add healthcheck endpoint

ent/generate.go

@@ -1,3 +1,3 @@
 package ent
 
-//go:generate go run -mod=mod entgo.io/ent/cmd/ent generate --feature schema/snapshot --feature sql/upsert ./schema
+//go:generate go run -mod=mod entgo.io/ent/cmd/ent generate --feature schema/snapshot --feature sql/upsert --template ping.tmpl --template get_client.tmpl ./schema

ent/get_client.go

@@ -0,0 +1,9 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import "entgo.io/ent/dialect/sql"
+
+func (c *Client) GetClient() *sql.Driver {
+	return c.driver.(*sql.Driver)
+}

ent/get_client.tmpl

@@ -0,0 +1,12 @@
+{{/* gotype: entgo.io/ent/entc/gen.Graph */}}
+
+{{ define "get_client" }}
+
+{{ $pkg := base $.Config.Package }}
+{{ template "header" $ }}
+
+func (c *Client) GetClient() *sql.Driver {
+	return c.driver.(*sql.Driver)
+}
+
+{{ end }}

ent/ping.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package ent
+
+import "entgo.io/ent/dialect/sql"
+
+func (c *Client) Ping() error {
+	db := c.driver.(*sql.Driver).DB()
+	return db.Ping()
+}

ent/ping.tmpl

@@ -0,0 +1,13 @@
+{{/* gotype: entgo.io/ent/entc/gen.Graph */}}
+
+{{ define "ping" }}
+
+{{ $pkg := base $.Config.Package }}
+{{ template "header" $ }}
+
+func (c *Client) Ping() error {
+	db := c.driver.(*sql.Driver).DB()
+	return db.Ping()
+}
+
+{{ end }}