templates: Add a template for web applications

templates/webapp/api/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "api"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+serde = { version = "1.0.163", features = ["derive"] }

templates/webapp/api/src/lib.rs

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+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize)]
+pub struct LoginRequest {
+    pub username: String,
+    pub password: String,
+}
+
+#[derive(Serialize, Deserialize)]
+pub struct LoginResponse {
+    pub token: String,
+}