---
url: /statelake/scripting-reference/http-scripting/anatomy-of-an-http-response.md
---

# Anatomy Of An HTTP Response

## Status-Line

The **Status-Line** is the single line that identifies and lists the highest **HTTP** version that the server supports, followed by the **Status-Code** and the **Reason-Phrase**, as illustrated by these examples.

The **Status-Line Response Code** tells you the type of response - a successful response returns a status code of 200, while a failure returns 400, an access refusal would return 401, and a permanent move would return code 301. Please refer to [HTTP Status Codes](/statelake/scripting-reference/http-scripting/http-status-codes) for more information.

## Message Headers

**Message Headers** are optional. They contain information about the response, such as the **Date** the message was sent, information about the **Server**, and what the body contains (the **Content-Type**).

*Example of a Response Message Header*

There are many different headers that can appear in a response. Always just a single line, they consist of a header string followed by a colon, and then a value.

## Blank Line

A **Blank Line** is always included between the headers and **Message Body**, and will be included even if the headers and/or body are omitted.

The **Blank Line** is a CR/LF, as are all end-of-line markers in HTTP 1.1.

## Message Body

The **Message Body** is also optional, although in most cases it contains the bulk of the response from the server.

This is where the html and image response for a web browser’s request goes, and the XML or JSON response for a REST client’s request.

While the **Message Headers** will always be text, the **Message Body** can contain either text or binary data.

The headers are read until the double end-of-line marker (CR/LF,CR/LF) one from the last header line, and the 2nd from the **Blank Line**. At this stage, the body can be read, based on the **Content-Type** and **Content-Encoding** headers received.

For **REST** connections, the body will probably be in text format.