sender: receiver: server: add basic direct file transfer

src/sender/client.rs

@@ -0,0 +1,56 @@
+use crate::transfer_info::transfer_info::TransferInfoRequest;
+use log::{debug, error};
+use reqwest::{Client, StatusCode};
+use std::collections::HashMap;
+use std::error::Error;
+use std::fmt;
+
+type Result<T> = std::result::Result<T, Box<dyn std::error::Error + Send + Sync>>;
+
+#[derive(Debug)]
+struct TransferNotCreatedError {
+    message: String,
+}
+
+impl TransferNotCreatedError {
+    fn new(msg: &str) -> Self {
+        Self {
+            message: msg.to_string(),
+        }
+    }
+}
+
+impl fmt::Display for TransferNotCreatedError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self.message)
+    }
+}
+
+impl Error for TransferNotCreatedError {
+    fn description(&self) -> &str {
+        &self.message
+    }
+}
+
+pub async fn send_info(relay: &str, file: &str) -> Result<String> {
+    debug!("Send Request to: {:?}", relay.to_string());
+    let mut map = HashMap::new();
+    map.insert("keyword", "test");
+    map.insert("files", file);
+
+    let client = Client::new();
+    let res = client
+        .post(relay.to_string() + "/upload")
+        .json(&map)
+        .send()
+        .await?;
+    if res.status() == StatusCode::CREATED {
+        let transfer_info: TransferInfoRequest = res.json().await?;
+        debug!("Json Response: {:#?}", transfer_info);
+        Ok(transfer_info.name)
+    } else {
+        Err(Box::new(TransferNotCreatedError::new(
+            "Transfer could not be created.",
+        )))
+    }
+}