Lots of refactoring, mostly to figure out how Axum works, tbh

src/discord/mod.rs

@@ -0,0 +1,26 @@
+use serde::Deserialize;
+use twilight_http::Client;
+
+pub mod commands;
+pub mod interactions;
+
+#[derive(Deserialize)]
+struct ClientCredentialsResponse {
+    access_token: String,
+}
+
+fn client_credentials_grant(authorization: String) -> anyhow::Result<ClientCredentialsResponse> {
+    Ok(ureq::post("https://discord.com/api/v10/oauth2/token")
+        .set("Authorization", &format!("Basic {}", authorization))
+        .send_form(&[
+            ("grant_type", "client_credentials"),
+            ("scope", "applications.commands.update"),
+        ])
+        .unwrap()
+        .into_json()?)
+}
+
+pub fn discord_client(authorization: String) -> anyhow::Result<Client> {
+    let token = client_credentials_grant(authorization)?.access_token;
+    Ok(Client::new(format!("Bearer {token}")))
+}