HTTP request and response reference

Response properties

The response object holds the information about a received HTTP Response (response content, headers, status, and so on) and provides access to the headers and contentType nested objects.

Property	Description
`body` (string \| TextStreamResponse \| object)	Response content, which can be a string, a TextStreamResponse object, or a JSON object.
`headers` (ResponseHeaders)	The response headers storage object.
`status` (int)	Response status, for example, 200 or 404.
`contentType` (ContentType)	The contentType object, which holds the data on the Content-Type response header value.

Headers object

The ResponseHeaders object is used for retrieving the data about response headers' values.

Methods

Method	Parameters	Description
valueOf	`headerName` (string)	Retrieves the first value of the `headerName` response header or `null` if the `headerName` response header does not exist.
valuesOf	`headerName` (string)	Retrieves the array containing all values of the `headerName` response header. Returns an empty array if the `headerName` response header does not exist.

ContentType object

The ContentType data object contains information from the Content-Type response header.

Properties

Property	Description
`mimeType` (string)	The MIME type of the response, for example, text/plain, text/xml, application/json.
`charset` (string)	The string representation of the response charset, for example, utf-8.

TextStreamResponse object

The TextStreamResponse interface is used to process a response as a text stream. It lets you implement two methods:

onEachLine(subscriber, onFinish), which loops through each line in the stream.
onEachMessage(subscriber, onFinish), which subscribes to each message sent by the server. This can be used for WebSocket, GRPC, and GraphQL over WebSocket.

Arguments

Argument	Usage in onEachLine	Usage in onEachMessage
`subscriber`	Function to process the streamlines. It takes two arguments: `line`: a string or a JSON object received as part of the stream. `unsubscribe`: a function that terminates execution of the current `onEachLine` block. It can be used to stop stream processing when a certain condition is met.	Function to process the stream messages. It takes three arguments: `message`: a string or a JSON object received as part of the stream. `unsubscribe`: a function that terminates execution of the current `onEachMessage` block. It can be used to stop stream processing when a certain condition is met. `output` (optional): a function that takes a string (message) and sends its argument back to the server.
`onFinish`	Function to be executed after the end of the stream.

Argument

Usage in onEachLine

Usage in onEachMessage

subscriber

Function to process the streamlines. It takes two arguments:

line: a string or a JSON object received as part of the stream.
unsubscribe: a function that terminates execution of the current onEachLine block. It can be used to stop stream processing when a certain condition is met.

Function to process the stream messages. It takes three arguments:

message: a string or a JSON object received as part of the stream.
unsubscribe: a function that terminates execution of the current onEachMessage block. It can be used to stop stream processing when a certain condition is met.
output (optional): a function that takes a string (message) and sends its argument back to the server.

onFinish

Function to be executed after the end of the stream.

For examples on how to use it, refer to Response handling examples or click Examples in an .http file and select WebSocket Requests or GraphQL Requests.

Request properties

The request object holds the information about the HTTP request and can be used both in pre-request scripts and in response handler scripts.

Property	When used in pre-request scripts	When used in response handler scripts
`body`	The request body obtained using one of two methods: `getRaw()`: returns the request body in the raw format: If the request body contains variables, their names are displayed instead of their values. `tryGetSubstituted()`: returns the request body with all known variables replaced with their values.	The request body as a string, for example `client.log(request.body())`.
`environment`	Has the `get(name)` method, which retrieves a value of the environment variable identified by its `name` or returns `null` if it does not exist.
`headers`	Has two methods: `all`: returns the array containing the values of all headers of the current request. `findByName(name)`: retrieves the value of the header identified by the `name` parameter.
`headers`	Each of the elements of the array is a request header with the following methods: `name`: the header name, such as `Content-Type`. `getRawValue`: returns the header value in the raw format: If the header contains variables, their names are displayed instead of their values. `tryGetSubstitutedValue()`: returns the header with all known variables replaced with their values.	Each of the elements of the array is a request header with the following methods: `name`: the header name, such as `Content-Type`. `value()`: the header value, such as `application/json`.
`url`	The request URL obtained using one of two methods: `getRaw()`: returns the request URL in the raw format: If the URL contains variables, their names are displayed instead of their values. `tryGetSubstituted()`: returns the request URL with all known variables replaced with their values.	The request URL as a string.
`variables`	Has the `get(name)` method, which retrieves a value of the per-request variable identified by its `name` or returns `null` if it does not exist.

Last modified: 11 February 2024