HTTP Request

The HTTP Request external action receives messages and posts HTTP requests to the specified URL.

The HTTP Request external action has two output ports. The success port (✔) can send a message if the request posts successfully. The failure port (x) can send a message if the request post fails.

Parameters

• Request Type: The type of HTTP request: GET, DELETE, PUT, or POST.
• Target URL: The URL to which messages are delivered.
• HTTP Authentication User Name: The user name, if the target URL requires HTTP authentication.
• HTTP Authentication Password: The user password, if the target URL requires HTTP authentication.
• Accept Header: Format of the Accept request HTTP header: JSON (application/json), XML (applicaton/xml), or Text Text (text/plain). Alternatively, enter your own media type.
• Content Type: Format in which to deliver content: JSON (application/json), XML (applicaton/xml), or Text (text/plain). Alternatively, enter your own media type.
• Post to Topics(s) on Success/Failure: These fields apply only to a HTTP Request external action that is auto-created when an FME Workbench workspace is published to FME Flow, registered to the Notification Service, and Topics are specified to which the workspace publishes notification content when a transformation succeeds or fails. In FME Workbench, these topics are specified on the Edit Service Properties dialog of the Publish to FME Flow wizard, and also appear here.
• Verify SSL Certificate: If Yes, the connection to the specified Target URL is verified with a valid, signed SSL certificate. If No, the connection is not verified with an SSL certificate. This option is not secure and not recommended unless absolutely necessary, such as when using a self-signed certificate.
• Note  To use a certification authority (CA) certificate for SSL authentication, see Importing a CA Certificate for SSL Connections.
• HTTP  Body: The message body content. If specified, this message replaces the incoming message body.

Output Attributes

See Also

• Working with Output Attributes in Automations Workflows.

Attribute	Description
time	Event time
source	Event type
error.type	(Failure port only) Error type: InvalidMessage: An error occurred while configuring this component, such as missing or malformed values. DeadLetter: An error occured while connecting to an external resource. Examples may include connection issues, invalid credentials, or generic external resource exceptions.
error.message	(Failure port only) Error message
http.status	Satus code
http.headers	Response headers
http.body	Response body

Retry

• Retry on failure: If checked, the automation attempts to run the action again if the initial attempt results in a failure to connect to the specified external resource for message delivery. The manner in which these retries are conducted is based on the remaining settings.
• Use custom retry settings: If checked, the remaining retry settings are configurable. If not checked, they are set to the FME Flow default values.
• Number of attempts: Maximum number of retries, if the action continues to fail.
• Wait between attempts: Time to wait between retries. In conjunction with Backoff multiplier (below), the specified value is the wait time for the first retry.
• Backoff multiplier: Factor by which to increase Wait between attempts on successive retries. For example, a value of 2.0 doubles the wait time for the next retry.
• Randomization factor: Percentage by which to introduce randomness to Wait between attempts. For example, if Wait between attempts is 100 Seconds, and Randomization factor is 25, the wait time for each retry is randomly selected between 75 and 125 seconds.
• Maximum wait between attempts: Maximum wait time between retries. In conjunction with Backoff multiplier, the specified value is the upper limit for wait time.