diff --git a/esv.d b/esv.d
index c173feb..30642fa 100644
--- a/esv.d
+++ b/esv.d
@@ -131,7 +131,7 @@ key = %s
 	enforceDie(apiKey != null,
 		"API key not present in configuration file; cannot proceed");
 
-	esv = new ESVApi(apiKey);
+	esv = ESVApi(apiKey);
 
 	if (aFlag) {
 		string tmpf, player;
diff --git a/esvapi.d b/esvapi.d
index b4764fc..3809273 100644
--- a/esvapi.d
+++ b/esvapi.d
@@ -171,73 +171,24 @@ verseValid(in char[] verse)
 }
 
 /++
- + ESV API object containing the authentication key,
- + the API URL, any parameters to use when contacting the
- + API as well as the temporary directory to use when
- + fetching audio passages.
+ + Structure containing the authentication key, API URL,
+ + any parameters to use when making a request as well as the
+ + temporary directory to use when fetching audio passages.
  +/
-class ESVApi
+struct ESVApi
 {
-	protected {
-		string _key;
-		string _tmp;
-		string _url;
-	}
-
 	ESVApiOptions opts;
+	string key; /++ API key +/
+	string tmp; /++ Tempfile directory +/
+	string url; /++ API URL +/
+	string extraParameters; /++ Additional request parameters +/
 
-	/++ Additional request parameters +/
-	string extraParameters;
-	/++ Called whenever progress is made on a request. +/
-	int delegate(size_t, size_t, size_t, size_t) onProgress;
-
-	/++
-	 + Constructs an ESVApi object using the given authentication key.
-	 +/
-	this(string key, string tmpName = "esv")
+	this(string apiKey)
 	{
-		_key = key;
-		_tmp = tempDir() ~ tmpName;
-		_url = "https://api.esv.org/v3/passage";
+		key = apiKey;
+		tmp = tempDir() ~ "esv";
+		url = "https://api.esv.org/v3/passage";
 		opts = ESVApiOptions(true);
-		extraParameters = "";
-		onProgress = delegate int (size_t dlTotal, size_t dlNow,
-			size_t ulTotal, size_t ulNow)
-        {
-			return 0;
-		};
-	}
-
-	/++
-	 + Returns the API authentication key that was given when the object
-	 + was constructed. This authentication key cannot be changed.
-	 +/
-	final @property string
-	key() const nothrow pure @nogc
-		=> _key;
-
-	/++
-	 + Returns the subdirectory used to store temporary audio passages.
-	 +/
-	final @property string
-	tmpDir() const nothrow pure @nogc
-		=> _tmp;
-
-	/++
-	 + Returns the API URL currently in use.
-	 +/
-	final @property string
-	url() const nothrow pure @nogc
-		=> _url;
-
-	/++
-	 + Sets the API URL currently in use to the given url argument.
-	 +/
-	final @property void
-	url(immutable(string) url)
-	in (!url.matchAll(`^https?://.+\\..+(/.+)?`).empty, "Invalid URL format")
-	{
-		_url = url;
 	}
 
 	/++
@@ -308,11 +259,11 @@ class ESVApi
 	{
 		File tmpFile;
 
-		tmpFile = File(_tmp, "w");
+		tmpFile = File(tmp, "w");
 		tmpFile.write(makeRequest(format!"audio/?q=%s+%s"(
 			book.capitalize().tr(" ", "+"), verse)));
 
-		return _tmp;
+		return tmp;
 	}
 
 	/++
@@ -397,15 +348,14 @@ class ESVApi
 		HTTP request;
 
 		response = [];
-		request = HTTP(_url ~ "/" ~ query);
-		request.onProgress = onProgress;
+		request = HTTP(url ~ "/" ~ query);
 		request.onReceive =
 			(ubyte[] data)
 			{
 				response ~= data;
 				return data.length;
 			};
-		request.addRequestHeader("Authorization", "Token " ~ _key);
+		request.addRequestHeader("Authorization", "Token " ~ key);
 		request.perform();
 
 		return response;
diff --git a/esvsearch.d b/esvsearch.d
index 72ffba0..056a346 100644
--- a/esvsearch.d
+++ b/esvsearch.d
@@ -97,7 +97,7 @@ main(string[] args)
 	enforceDie(apiKey != null,
 		"API key not present in configuration file; cannot proceed");
 
-	esv = new ESVApi(apiKey);
+	esv = ESVApi(apiKey);
 
 	try
 		writeln(esv.searchFormat(args[1]));