diff --git a/src/Network/HTTPClient.php b/src/Network/HTTPClient.php
index eabd5d4507..e982d19afc 100644
--- a/src/Network/HTTPClient.php
+++ b/src/Network/HTTPClient.php
@@ -57,7 +57,7 @@ class HTTPClient implements IHTTPClient
 	}
 
 	/**
-	 * @throws HTTPException\InternalServerErrorException
+	 * {@inheritDoc}
 	 */
 	public function request(string $method, string $url, array $opts = []): IHTTPResult
 	{
@@ -95,35 +95,39 @@ class HTTPClient implements IHTTPClient
 
 		$conf = [];
 
-		if (!empty($opts['cookiejar'])) {
-			$jar                           = new FileCookieJar($opts['cookiejar']);
+		if (!empty($opts[HTTPRequestOptions::COOKIEJAR])) {
+			$jar                           = new FileCookieJar($opts[HTTPRequestOptions::COOKIEJAR]);
 			$conf[RequestOptions::COOKIES] = $jar;
 		}
 
-		$header = [];
+		$headers = [];
 
-		if (!empty($opts['accept_content'])) {
-			$header['Accept'] = $opts['accept_content'];
+		if (!empty($opts[HTTPRequestOptions::ACCEPT_CONTENT])) {
+			$headers['Accept'] = $opts[HTTPRequestOptions::ACCEPT_CONTENT];
 		}
 
-		if (!empty($opts['header'])) {
-			$header = array_merge($opts['header'], $header);
-		}
-
-		if (!empty($opts['headers'])) {
+		if (!empty($opts[HTTPRequestOptions::LEGACY_HEADER])) {
 			$this->logger->notice('Wrong option \'headers\' used.');
-			$header = array_merge($opts['headers'], $header);
+			$headers = array_merge($opts[HTTPRequestOptions::LEGACY_HEADER], $headers);
 		}
 
-		$conf[RequestOptions::HEADERS] = array_merge($this->client->getConfig(RequestOptions::HEADERS), $header);
+		if (!empty($opts[HTTPRequestOptions::HEADERS])) {
+			$headers = array_merge($opts[HTTPRequestOptions::HEADERS], $headers);
+		}
 
-		if (!empty($opts['timeout'])) {
-			$conf[RequestOptions::TIMEOUT] = $opts['timeout'];
+		$conf[RequestOptions::HEADERS] = array_merge($this->client->getConfig(RequestOptions::HEADERS), $headers);
+
+		if (!empty($opts[HTTPRequestOptions::TIMEOUT])) {
+			$conf[RequestOptions::TIMEOUT] = $opts[HTTPRequestOptions::TIMEOUT];
+		}
+
+		if (!empty($opts[HTTPRequestOptions::BODY])) {
+			$conf[RequestOptions::BODY] = $opts[HTTPRequestOptions::BODY];
 		}
 
 		$conf[RequestOptions::ON_HEADERS] = function (ResponseInterface $response) use ($opts) {
-			if (!empty($opts['content_length']) &&
-				$response->getHeaderLine('Content-Length') > $opts['content_length']) {
+			if (!empty($opts[HTTPRequestOptions::CONTENT_LENGTH]) &&
+				(int)$response->getHeaderLine('Content-Length') > $opts[HTTPRequestOptions::CONTENT_LENGTH]) {
 				throw new TransferException('The file is too big!');
 			}
 		};
@@ -160,8 +164,6 @@ class HTTPClient implements IHTTPClient
 	}
 
 	/** {@inheritDoc}
-	 *
-	 * @throws HTTPException\InternalServerErrorException
 	 */
 	public function head(string $url, array $opts = []): IHTTPResult
 	{
@@ -183,10 +185,10 @@ class HTTPClient implements IHTTPClient
 	{
 		$opts = [];
 
-		$opts[RequestOptions::JSON] = $params;
+		$opts[RequestOptions::BODY] = $params;
 
 		if (!empty($headers)) {
-			$opts['headers'] = $headers;
+			$opts[RequestOptions::HEADERS] = $headers;
 		}
 
 		if (!empty($timeout)) {
diff --git a/src/Network/HTTPRequestOptions.php b/src/Network/HTTPRequestOptions.php
new file mode 100644
index 0000000000..7cfee892a8
--- /dev/null
+++ b/src/Network/HTTPRequestOptions.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Friendica\Network;
+
+use GuzzleHttp\RequestOptions;
+
+/**
+ * This class contains a list of possible HTTPClient request options.
+ */
+class HTTPRequestOptions
+{
+	/**
+	 * accept_content: (array) supply Accept: header with 'accept_content' as the value
+	 */
+	const ACCEPT_CONTENT = 'accept_content';
+	/**
+	 * timeout: (int) out in seconds, default system config value or 60 seconds
+	 */
+	const TIMEOUT = RequestOptions::TIMEOUT;
+	/**
+	 * cookiejar: (string) path to cookie jar file
+	 */
+	const COOKIEJAR = 'cookiejar';
+	/**
+	 * headers: (array) header array
+	 */
+	const HEADERS = RequestOptions::HEADERS;
+	/**
+	 * header: (array) header array (legacy version)
+	 */
+	const LEGACY_HEADER = 'header';
+	/**
+	 * content_length: (int) maximum File content length
+	 */
+	const CONTENT_LENGTH = 'content_length';
+	/**
+	 * body: (mixed) Setting the body for sending data
+	 */
+	const BODY = RequestOptions::BODY;
+}
diff --git a/src/Network/IHTTPClient.php b/src/Network/IHTTPClient.php
index c7d122c8f1..2f8bab46fc 100644
--- a/src/Network/IHTTPClient.php
+++ b/src/Network/IHTTPClient.php
@@ -88,9 +88,15 @@ interface IHTTPClient
 	/**
 	 * Sends a HTTP request to a given url
 	 *
-	 * @param string $method A HTTP request ()
+	 * @param string $method A HTTP request
 	 * @param string $url    Url to send to
-	 * @param array  $opts   parameters
+	 * @param array  $opts   (optional parameters) associative array with:
+	 *                       	 'body' => (mixed) setting the body for sending data
+	 *                           'accept_content' => (string array) supply Accept: header with 'accept_content' as the value
+	 *                           'timeout' => int Timeout in seconds, default system config value or 60 seconds
+	 *                           'cookiejar' => path to cookie jar file
+	 *                           'header' => header array
+	 *                           'content_length' => int maximum File content length
 	 *
 	 * @return IHTTPResult
 	 */