diff --git a/.gitignore b/.gitignore
index a919aef..81f9781 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+*.har
 # ---> Rust
 # Generated by Cargo
 # will have compiled files and executables
diff --git a/src/cmd_download.rs b/src/cmd_download.rs
new file mode 100644
index 0000000..aaea82d
--- /dev/null
+++ b/src/cmd_download.rs
@@ -0,0 +1,32 @@
+use std::fs;
+use clap::{ Arg, ArgMatches, SubCommand, App, };
+use crate::cmd::{ Command, CommandError, };
+use crate::har::*;
+
+pub struct CommandDownload;
+
+impl Command for CommandDownload {
+
+    fn subcommand<'a>(&self) -> App<'a, 'a> {
+        SubCommand::with_name(self.name()).about("Download subcommand")
+            .arg(Arg::with_name("FILE_NAME").required(true).help("Har file name"))
+    }
+
+    fn name(&self) -> &str {
+        "download"
+    }
+
+    fn run(&self, _arg_matches: &ArgMatches, sub_arg_matches: &ArgMatches) -> CommandError {
+        let file_name = sub_arg_matches.value_of("FILE_NAME").unwrap();
+        let har_str = fs::read_to_string(file_name)?;
+        let har: Har = serde_json::from_str(&har_str)?;
+
+        // println!("{:?}", har);
+
+        har.log.entries.iter().for_each(|e| {
+            println!("{:<100} {}", e.request.url, e.server_ip_address);
+        });
+
+        Ok(())
+    }
+}
diff --git a/src/cmd_sample.rs b/src/cmd_sample.rs
deleted file mode 100644
index b1bd812..0000000
--- a/src/cmd_sample.rs
+++ /dev/null
@@ -1,20 +0,0 @@
-use clap::{ ArgMatches, SubCommand, App, };
-use crate::cmd::{ Command, CommandError, };
-
-pub struct CommandSample;
-
-impl Command for CommandSample {
-
-    fn subcommand<'a>(&self) -> App<'a, 'a> {
-        SubCommand::with_name(self.name()).about("Sample subcommand")
-    }
-
-    fn name(&self) -> &str {
-        "sample"
-    }
-
-    fn run(&self, _arg_matches: &ArgMatches, _sub_arg_matches: &ArgMatches) -> CommandError {
-        println!("This is test command!");
-        Ok(())
-    }
-}
diff --git a/src/har.rs b/src/har.rs
index c9e0531..50fb9d9 100644
--- a/src/har.rs
+++ b/src/har.rs
@@ -2,48 +2,95 @@ use serde::{Serialize, Deserialize};
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct HarCreator {
-    name: String,
-    version: String,
+    pub name: String,
+    pub version: String,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct HarPageTimings {
     #[serde(rename = "onContentLoad")]
-    on_content_load: f64,
+    pub on_content_load: f64,
     #[serde(rename = "onLoad")]
-    on_load: f64,
+    pub on_load: f64,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct HarPage {
     #[serde(rename = "startedDateTime")]
-    started_date_time: String,
-    id: String,
-    title: String,
+    pub started_date_time: String,
+    pub id: String,
+    pub title: String,
     #[serde(rename = "pageTimings")]
-    page_timings: HarPageTimings,
+    pub page_timings: HarPageTimings,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct HarHeader {
+    pub name: String,
+    pub value: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct HarQueryParam {
+    pub name: String,
+    pub value: String,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct HarCookie {
+    pub name: String,
+    pub value: String,
+    pub expires: Option<String>,
+    #[serde(rename = "httpOnly")]
+    pub http_only: bool,
+    pub secure: bool,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct HarRequest {
+    pub method: String,
+    pub url: String,
+    #[serde(rename = "httpVersion")]
+    pub http_version: String,
+    pub headers: Vec<HarHeader>,
+    #[serde(rename = "queryString")]
+    pub query_string: Vec<HarQueryParam>,
+    pub cookies: Vec<HarCookie>,
+    #[serde(rename = "headersSize")]
+    pub headers_size: i64,
+    #[serde(rename = "bodySize")]
+    pub body_size: i64,
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct HarEntry {
-    // startedDateTime
-    time: f64,
-    // request
+    #[serde(rename = "startedDateTime")]
+    pub started_date_time: String,
+    pub time: f64,
+    pub request: HarRequest,
     // response
     // cache
     // timings
-    // serverIPAddress
+    #[serde(rename = "serverIPAddress")]
+    pub server_ip_address: String,
     // _initiator
-    // _priority
-    // _resourceType
-    // connection
-    pageref: String, // @see Harpage::id
+    #[serde(rename = "_priority")]
+    pub priority: String,
+    #[serde(rename = "_resourceType")]
+    pub resource_ype: String,
+    pub connection: Option<String>,
+    pub pageref: Option<String>, // @see Harpage::id
 }
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct HarLog {
-    version: String,
-    creator: HarCreator,
-    pages: Vec<HarPage>,
-    entries: Vec<HarEntry>,
+    pub version: String,
+    pub creator: HarCreator,
+    pub pages: Vec<HarPage>,
+    pub entries: Vec<HarEntry>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct Har {
+    pub log: HarLog,
 }
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 234931c..195936a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,17 +1,17 @@
 use clap::App;
 
 mod cmd;
-mod cmd_sample;
+mod cmd_download;
 mod cmd_default;
 mod har;
 
 use cmd::{ Command, CommandError, };
-use cmd_sample::CommandSample;
+use cmd_download::CommandDownload;
 use cmd_default::CommandDefault;
 
 fn main() -> CommandError {
-    let commands = vec![
-        CommandSample{},
+    let commands: Vec<Box<dyn Command>> = vec![
+        Box::new(CommandDownload{}),
     ];
     let mut app = App::new(env!("CARGO_PKG_NAME"))
                     .version(env!("CARGO_PKG_VERSION"))