Outgoing Webhooks

Outgoing webhooks are a simple way to send HTTP POST requests to external applications. They are like notifications, but the recipient is an external application URL instead of an email address, and the message is a JSON payload instead of a text or HTML body.

To create outgoing webhooks, use the SENDHTTPPOST workflow application, which you can use as a system action in your workflows.

Integrating webhooks with WorkflowGen

SENDHTTPPOST workflow application

WorkflowGen uses the SENDHTTPPOST workflow application (available as of version 6.6.0) to send HTTP POST requests to external applications using JSON or URLENCODED payloads. The SENDHTTPPOST application will then receive and process the response from the external API.

For more information on how the application works, see SENDHTTPPOST workflow application in the WorkflowGen Administration Guide.

For samples of APIs that use SENDHTTPPOST, see the SENDHTTPPOST workflow application repository on GitHub.

For an example of how you can use SENDHTTPPOST to send messages to Slack channels from WorkflowGen, see Workflow Application: Using SENDHTTPPOST to send messages to Slack on the WorkflowGen Forum & Knowledge Base.

Performance optimization

The value of the nodeProcessCountPerApplication setting is set to 0 by default for the best performance in Node.js applications. This creates one node process based on the number of virtual processors that are configured. You can change this value at any time to a custom number of node processes; for example, nodeProcessCountPerApplication=2 will create two node processes independently of the number of virtual processors.

For more information, see https://docs.microsoft.com/en-us/azure/app-service/app-service-web-nodejs-best-practices-and-troubleshoot-guide#nodeprocesscountperapplication.

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