initial working version of web server flow

examples/sfdx_url_json.rs

@@ -1,4 +1,4 @@
-//! RustSF Authentication library - SFDX Auth URL Example
+//! RustSF Authentication library - OAuth2.0 SFDX Auth URL Example
 //!
 //! In this example, we demonstrate how to use the RustSF Authentication library to authenticate
 //! with Salesforce using an SFDX auth URL.
@@ -20,7 +20,6 @@
 use oauth2::http::header::AUTHORIZATION;
 use oauth2::http::{HeaderMap, HeaderValue};
 use rustsf_auth::{SalesforceCredentials, SfdxAuthJson};
-use serde::Deserialize;
 use std::fs;
 
 pub const CONNECT_TIMEOUT: u64 = 15;