¶ Dynamically assemble data for nodes

This document introduces the expressions used in data assembly, and these out of the box expressions are often very useful when performing some simple processing on data.

The Authoring process orchestration engine uses open-source jsonpath (opens new window) As a parsing engine for assembly data, if you are very familiar with this library, you can directly query its documentation.

¶ Create a sample workflow

If you have just started working on identity automation with Authing, it is recommended to read [Write First Workflow] (/workflow/Quick Start/Boolean/Write First Workflow. hl).

Here we use a Mock data:

{
    "store": {
        "book": [
            {
                "category": "reference",
                "author": "Nigel Rees",
                "title": "Sayings of the Century",
                "price": 8.95
            },
            {
                "category": "fiction",
                "author": "Evelyn Waugh",
                "title": "Sword of Honour",
                "price": 12.99
            },
            {
                "category": "fiction",
                "author": "Herman Melville",
                "title": "Moby Dick",
                "isbn": "0-553-21311-3",
                "price": 8.99
            },
            {
                "category": "fiction",
                "author": "J. R. R. Tolkien",
                "title": "The Lord of the Rings",
                "isbn": "0-395-19395-8",
                "price": 22.99
            }
        ],
        "bicycle": {
            "color": "red",
            "price": 19.95
        }
    },
    "expensive": 10
}

Here we create a simple workflow: use JSON nodes to pull data, and then use data synthesisnodes to test the use of data assembly:

1. Pull an incoming JSON data node and edit this node

2. Use JSON nodes to pull data, then fill in the parameter configuration with the JSON data above, and click save

3. First, click on the confirm execution button in the test execution, and let the workflow execute first

4. Next, we can see the execution results of the HTTP node in the data synthesis node and assemble its data.

By executing the workflow, you can see the output of the data synthesis node, which is the assembly result we tested. For example, in the simplest scenario, it is a direct reference to the value. The following will introduce other more advanced data assembly expressions.

¶ Common parsing expressions