Start Node and Webhooks
Every Nash workflow begins with a start node. The start node is essentially a placeholder, clearly pointing out to the user where the workflow will begin. But its most important function is that it allows for the use webhooks. These webhooks let you kick off a workflow based on data changes. So, rather than scheduling Nash to run at some interval, it will run the workflow whenever your data is updated.
There are 4 different ways that webhooks can be used in Nash:
1. As a POST, with workflow id in the POST body:
URL: https://yourdomain:8081/nash/startWorkflow
Body:
{
workflow: "633b14fa4c617b3704dd6d23",
params: {
wonum: "123456",
assetnum: "654321"
}
}This method is commonly used with an automation script launch point in Maximo where we need to send Maximo data to another system on a record save.
2. As a POST, with Workflow ID in the URL
URL: https://yourdomain:8081/nash/startWorkflow/633b14fa4c617b3704dd6d23
Body:
{
wonum: "123456",
assetnum: "654321"
}This is commonly used by ArcGIS webhooks. With AGOL webhooks we ignore a large amount of the data in the post and then follow the launch of the workflow with an input to query the latest changes.
3. As a GET, with Workflow ID in Query Parameters
URL: http://yourdomain:8081/nash/startWorkflow?workflow=633b14fa4c617b3704dd6d23
No additional parameters are currently allowed
4. As a GET with Workflow ID in URL Path
URL: http://yourdomain:8081/nash/startWorkflow/633b14fa4c617b3704dd6d23
No additional parameters are currently allowed