Started querying public transporatation

client/bin/Cargo.toml

@@ -14,3 +14,6 @@ chrono = { version = "0.4.23", default-features = false , features = ["iana-time
 chrono-tz = "0.8.0"
 colored = "2.0.0"
 datetime = "0.5.2"
+# Necessary for web crawler
+openssl = { version = "0.10", features = ["vendored"] }
+reqwest = { version = "0.11", features = ["blocking", "json"] }

client/bin/src/main.rs

@@ -19,6 +19,9 @@ use std::{net::UdpSocket, time::{Instant, Duration}};
 use std::{env, thread};
 
 use openweathermap::forecast::Forecast;
+// This declaration will look for a file named `straba.rs` and will
+// insert its contents inside a module named `straba` under this scope
+mod straba;
 
 const IMAGE_SIZE_BYTE: usize = (IMAGE_WIDTH_BYTE * IMAGE_HEIGHT) as usize; /* one byte contains 8 LEDs, one in each bit */
 const IMAGE_WIDTH: u32 = 5 * 32;
@@ -237,8 +240,8 @@ fn send_package(ipaddress: String, data: &Option<Result<Forecast, String>>) {
 
 
     package[1..PACKAGE_LENGTH].copy_from_slice(&display.image);
-
-    let socket = UdpSocket::bind("0.0.0.0:4242").expect("couldn't bind to address");
+    // client need to bind to client port (1 before 4242)
+    let socket = UdpSocket::bind("0.0.0.0:14242").expect("couldn't bind to address");
     socket
         .send_to(&package, ipaddress + ":4242")
         .expect("couldn't send data");
@@ -274,7 +277,8 @@ fn main() {
 
             let mut last_data = Option::None;
             
-
+            // Test Webcrawler for public transportataion
+            straba::fetchData();
 
             loop {
                 let delay = time::Duration::from_millis(10000);

client/bin/src/straba.rs

@@ -0,0 +1,13 @@
+/* @file straba.rs
+ * @brief fetch next depature of light rail vehicle
+ */
+use std::error::Error;
+
+const stationURL:&str = "https://www.rnv-online.de/rest/departure/2494/1";
+
+pub fn fetchData() -> Result<(), Box<dyn Error>> {
+    println!("Test RNV API");
+    let resp = reqwest::blocking::get(stationURL)?.text()?;
+    println!("{:#?}", resp);
+    Ok(())
+}