Add authorization for http and websocket

ethers-providers/src/transports/common.rs

@@ -2,7 +2,7 @@
 use ethers_core::types::U256;
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
-use std::fmt;
+use std::{fmt, string::ToString};
 use thiserror::Error;
 
 #[derive(Serialize, Deserialize, Debug, Clone, Error)]
@@ -103,6 +103,16 @@ pub enum Authorization {
     Bearer(String),
 }
 
+impl Authorization {
+    pub fn basic(username: impl ToString, password: impl ToString) -> Self {
+        Self::Basic(username.to_string(), password.to_string())
+    }
+
+    pub fn bearer(token: impl ToString) -> Self {
+        Self::Bearer(token.to_string())
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

ethers-providers/src/transports/http.rs

@@ -116,7 +116,7 @@ impl Provider {
     /// use url::Url;
     ///
     /// let url = Url::parse("http://localhost:8545").unwrap();
-    /// let provider = Http::new_with_auth(url, Authorization::Basic("admin".into(), "good_password".into()));
+    /// let provider = Http::new_with_auth(url, Authorization::basic("admin", "good_password"));
     /// ```
     pub fn new_with_auth(url: impl Into<Url>, auth: Authorization) -> Self {
         let mut provider = Self::new(url);