JPath Read

JPath Read extracts a value from a JSON document using a JPath expression.

It supports selecting:

• Scalar values (string/number/boolean/null)
• Objects
• Arrays

If the selected token is an object or array, it is written as compact JSON.

---

Parameters

JPATH

JPath expression used to select a token from the input JSON.

Examples:

$.customer.name
$.items[0].sku
$.addresses[?(@.type == 'home')]

Required

---

INPUT_PARAM

Message parameter name that contains the JSON input string.

Default: INPUT

---

OUTPUT_PARAM

Message parameter name that receives the extracted value.

Direction: Out
Default: OUTPUT

---

Execution Context Behavior

1. Reads JSON text from INPUT_PARAM.
2. Parses the text as a JSON object.
3. Selects a token using the JPATH expression.
4. Converts the selected token to output:
   • Scalar value → string value
   • Object/Array → compact JSON string
   • Not found → null
5. Writes the result to OUTPUT_PARAM.

---

Example Configuration

Parameter	Value
JPATH	$.customer.name
INPUT_PARAM	INPUT
OUTPUT_PARAM	CUSTOMER_NAME

Example Result

CUSTOMER_NAME = John