diff --git a/index.js b/index.js
index 102444a..f7960df 100644
--- a/index.js
+++ b/index.js
@@ -1,10 +1,15 @@
 const { ScreepsAPI } = require('screeps-api');
 const core = require("@actions/core");
-
 const fs = require('fs');
 const glob = require('glob');
 const path = require('path');
 
+/**
+ * Reads files matching a glob pattern into a dictionary.
+ * @param {string} pattern - Glob pattern to match files.
+ * @param {string} prefix - Directory prefix for file paths.
+ * @returns {Promise<Object>} - Promise resolving to a dictionary of file contents keyed by filenames.
+ */
 function readFilesIntoDict(pattern, prefix) {
     // Prepend the prefix to the glob pattern
     const globPattern = prefix ? path.join(prefix, pattern) : pattern;
@@ -37,7 +42,35 @@ function readFilesIntoDict(pattern, prefix) {
     });
 }
 
+/**
+ * Validates the provided authentication credentials.
+ * @param {string} token - The authentication token.
+ * @param {string} username - The username.
+ * @param {string} password - The password.
+ * @returns {string|null} - Returns an error message if validation fails, otherwise null.
+ */
+function validateAuthentication(token, username, password) {
+    if (token) {
+        if (username || password) {
+            return "Token is defined along with username and/or password.";
+        }
+    } else {
+        if (!username && !password) {
+            return "Neither token nor password and username are defined.";
+        }
+        if (username && !password) {
+            return "Username is defined but no password is provided.";
+        }
+        if (!username && password) {
+            return "Password is defined but no username is provided.";
+        }
+    }
+    return null; // No errors found
+}
 
+/**
+ * Posts code to Screeps server.
+ */
 async function postCode() {
     const protocol = core.getInput("protocol") || "https";
     const hostname = core.getInput("hostname") || "screeps.com";
@@ -47,42 +80,34 @@ async function postCode() {
     const token = core.getInput("token") || undefined;
     const username = core.getInput("username") || undefined;
     const password = core.getInput("password") || undefined;
-
-    const prefix = core.getInput("prefix");
-
+    const prefix = core.getInput("source-prefix");
     const pattern = core.getInput("pattern") || "*.js";
     const branch = core.getInput("branch") || "default";
     
-    const files_to_push = readFilesIntoDict(pattern, prefix);
+    const files_to_push = await readFilesIntoDict(pattern, prefix);
 
-    const login_arguemnts = {
+    const login_arguments = {
         "token": token,
         "username": username,
-        "passowrd": password,
+        "password": password,
         "protocol": protocol,
         "hostname": hostname,
         "port": port,
         "path": path,
     };
-    if (!token) {
-        if (!username && !password) {
-            core.error("Neither token nor password and username are defined.")
-        } else if (username && !password) {
-            core.error("It seems like you would like to login via username but no username seems to be defined.");
-        } else if (!username && password) {
-            core.error("It seems like you would like to login via username but no password seems to be defined.");
-        }
-    } else if (username && password) {
-        core.error("In addition to a token both username and password are defined.");
-    } else if (username) {
-        core.error("In addition to a token the username is defined.");
-    } else if (password) {
-        core.error("In addition to a token the passwrd is defined.")
+
+    // TODO: Refactor error handling for cleaner code
+    const errorMessage = validateAuthentication(token, username, password);
+    if (errorMessage) {
+        core.error(errorMessage);
+        return;
     }
-    core.log(JSON.stringify(login_arguemnts, null, 2));
-    const api = new ScreepsAPI(login_arguemnts);
-    api.code.set(branch, files_to_push)
-    
+
+    // TODO: Consider moving log statement after error checks
+    core.log(JSON.stringify(login_arguments, null, 2));
+
+    const api = new ScreepsAPI(login_arguments);
+    await api.code.set(branch, files_to_push);
 }
 
 postCode();