USE:
JSONPath expressions are used to operate on JSON messages.
| Info |
|---|
For testing JSONPath expressions see Int4 IFTT Expression Test Tool |
Int4 IFTT supports JSONPath expressions in dot-notation.
Here is a list of supported syntax elements and their XPath equivalents.
XPath | JSONPath | Description |
|---|---|---|
/ | $ | root element/object |
// | .. | recursive descent |
* | * | wildcard (all objects) |
[] | [] | collection/array operator |
Examples:
JSON file:
| Code Block | ||
|---|---|---|
| ||
{
"order": {
"item": [{
"category": "Monitors",
"itemText": "LCD Monitor 22 inch",
"price": 128.95
}, {
"category": "Printers",
"itemText": "Label Printer",
"price": 56.99
}, {
"category": "Monitors",
"itemText": "LCD Monitor 24 inch Full HD",
"price": 211.99
}, {
"category": "Printers",
"itemText": "Laser Printer",
"price": 77.99
}
],
"paymentTerms": {
"code": "N30",
"description": "Payment 30 days after invoice date"
}
}
} |
All item texts
JSONPath: $.order.item[*].itemText
Result:
LCD Monitor 22 inchLabel Printer
LCD Monitor 24 inch Full HD
Laser Printer
Price of 3rd item
JSONPath: $.order.item[2].price
Result:
211.99All categories
JSONPath: $..categoryResult:
MonitorsPrinters
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Int4 IFTT converts JSON files to JSON-XML - SAP-specific representation of JSON data in XML format. It is possible to use Xpath expressions for JSON files based on this representation. Such expressions have to be preceded with '$' sign. |
JSON-XML representation of above file:
| Code Block | ||
|---|---|---|
| ||
<?xml version="1.0"?>
<object>
<object name="order">
<array name="item">
<object>
<str name="category">Monitors</str>
<str name="itemText">LCD Monitor 22 inch</str>
<num name="price">128.95</num>
</object>
<object>
<str name="category">Printers</str>
<str name="itemText">Label Printer</str>
<num name="price">56.99</num>
</object>
<object>
<str name="category">Monitors</str>
<str name="itemText">LCD Monitor 24 inch Full HD</str>
<num name="price">211.99</num>
</object>
<object>
<str name="category">Printers</str>
<str name="itemText">Laser Printer</str>
<num name="price">77.99</num>
</object>
</array>
<object name="paymentTerms">
<str name="code">N30</str>
<str name="description">Payment 30 days after invoice date</str>
</object>
</object>
</object> |
Select prices of items in Printer category
Expression: $//array[@name="item"]/object[str[@name = 'category']/text() = 'Printers' ]/num[@name="price"]/text()
Result:
56.9977.99