HTTP Client

Overview

The HTTP Client Node allows the user to send HTTP requests to a selected HTTP server. All configurations are made in the Node or in the Attributes section. There are several methods that the user can select from to perform different HTTP requests. These are: GET, POST, PUT, HEAD, and DELETE.

Scope: Project, Scene.

HTTP Client Methods.

Common Attributes, Inputs, and Outputs

Depending on the Method selected, the Attributes and Inputs might change. However, there are several common Attributes, Inputs, and Outputs between the many HTTP Methods.

Common Attributes

HTTP Shared Attributes.

Attribute	Type	Description
Remote IP	User Input	The HTTP endpoint (either a URL or IP address).
Remote Port	Int	The port value. For HTTP, the standard is 80 and for HTTPS, the standard is 443.
Method	Drop-down	Either GET, POST, PUT, HEAD, or DELETE.
Path	User Input	A specific path from the call being referenced in Remote IP. Usually, this is the text after the main root URL but before the ? character.
Authentication	Drop-down	The user selects Basic when a username and password are required to access the information, otherwise None is chosen.
Default Headers	Add Elements	HTTP headers in the form of key/value pairs.
Request Query	Add Elements	Parameters of the call in the form of key/value pairs.
Is Response Body Binary	Bool	The user chooses true or false depending on whether they wish for the Response Body output to remain a String or be converted into binary. Currently, the Node only supports Strings.

Common Inputs

Input	Type	Description
Pulse Input (►)	Pulse	A standard Input Pulse, to trigger the execution of the Node.
Remote IP	String	The HTTP endpoint (either a URL or IP address).
Remote Port	Int	The port value. For HTTP, the standard is 80 and for HTTPS, the standard is 443.
Path	String	A specific path from the call being referenced in Remote IP. Usually, this is the text after the main root URL but before the ? character.
Headers	Dictionary	HTTP headers in the form of key/value pairs.
Query	Dictionary	Parameters of the call in the form of key/value pairs.

Common Outputs

Output	Type	Description
Pulse Output (►)	Pulse	A standard Output Pulse, to move onto the next Node along the Logic Branch, once this Node has finished its execution.
OnResponse (►)	Pulse	Flows to additional actions when there is a response.
Status Code	Int	A standard status code within the HTTP protocol. For example, 404 is when a page is not found.
Headers	Dictionary	HTTP headers in the form of key/value pairs.
Body	String	The body of the response, usually including HTML text.

Methods

GET

The HTTP Client Node using Method GET.

GET creates a request and returns the response as per the HTTP protocol. This is very useful when dealing with web APIs. A more detailed explanation involving web APIs can be found in the See Also section. Additional information on the different HTTP methods can be found in the External Links section.

POST

The HTTP Client Node using Method POST.

POST sends data, in this case the information from the Request Body, to the desired server as per the HTTP protocol. More information on the different HTTP methods can be found in the External Links section. All Attributes and Inputs are the same as the common Attributes, except for the addition of the following:

Attributes

The HTTP Client Node Attributes using Method POST.

Attribute	Type	Description
Default Body	String	The body of the HTTP request, if none is provided in the Input Socket.

Inputs

Input	Type	Description
Body	String	The body of the HTTP request.

PUT

The HTTP Client Node using Method PUT.

PUT updates already existing data on the desired server per the HTTP protocol. More information on the different HTTP methods can be found in the External Links section. All Attributes and Inputs are the same as the common Attributes, except for the addition of the following:

Attributes

The HTTP Client Node Attributes using Method PUT.

Attribute	Type	Description
Default Body	String	The body of the HTTP request, if none is provided in the Input Socket.

Inputs

Input	Type	Description
Body	String	The body of the HTTP request.

HEAD

The HTTP Client Node using Method HEAD.

HEAD requests the headers on the desired server in order to gather information about the data, but not the content of the data itself. More information on the different HTTP methods can be found in the External Links section. All Attributes and Inputs are the same as the common Attributes.

DELETE

The HTTP Client Node using Method DELETE.

DELETE deletes data on the desired server per the HTTP protocol. More information on the different HTTP methods can be found in the External Links section. All Attributes and Inputs are the same as the common Attributes, except for the addition of the following:

Attributes

The HTTP Client Node Attributes using Method DELETE.

Attribute	Type	Description
Default Body	String	The body of the HTTP request, if none is provided in the Input Socket.

Inputs

Input	Type	Description
Body	String	The body of the HTTP request.

See Also

• Using APIs to Pull Dynamic Data

External Links

• Different HTTP Methods on W3Schools.