1 files changed, 11 insertions, 3 deletions
diff --git a/src/main.rs b/src/main.rs
index fd02f82..81a5067 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,10 +9,13 @@ use clap::Parser;
 #[command(author, version, about, long_about = None)]
 struct Args {
    /// uri of the GTFS RT feed to fetch & display
-   #[arg(long)]
    url: String,
+   /// emit the feed as json
+   #[arg(long)]
+   json: bool
 }
 
+
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let args = Args::parse();
@@ -21,8 +24,13 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         .bytes().await?;
 
     let proto = FeedMessage::parse_from_bytes(&resp[..])?;
-        
-    println!("{}", protobuf::text_format::print_to_string_pretty(&proto));
+
+    match args.json {
+        true => 
+            println!("{}", protobuf_json_mapping::print_to_string(&proto)?),
+        false => 
+            println!("{}", protobuf::text_format::print_to_string_pretty(&proto))
+    }
     Ok(())
 }