...
Allows for adding of cookie parameters for the request. These should be entered in the <name>=<value> format with each pair on a separate line.
Response Variables
Allows for extracting values from JSON or XML responses and placing them into variables the configuration has access to. To extact values from the JSON and XML responses, JSONpath and XPath can be used. Each has their own syntax for extracting values for nodes within the objects they represent. Below is a list of some of the syntax allowed by each.
| XPath | JSONPath | Description |
| / | $ | The base node in the object. |
| . | @ | The current object in the node path. |
| / | . or [] | Accessing a child node, or specific child node |
| .. | n/a | Accessing the parent of the current node. |
| // | .. | Recursive child decent. |
| * | * | Wildcard operator to access any node. |
| @ | n/a | Accessing an attribute. |
| [] | [] | Accessing an element within a list of nodes. |
| | | [,] | Union of two sets of nodes. |
| n/a | [start:end:step] | Accessing elements as a slice of a set of elements. |
| [] | ?() | Accessing nodes with a filter applied. |
Let's practice JSONPath expressions by some more examples. We start with a simple JSON structure built after an XML example representing a bookstore (original XML file).
| Code Block | ||||
|---|---|---|---|---|
| ||||
{
"messages": {
"staging": [
{
"category": "information",
"message" : "Building..."
},
{
"category": "information",
"message" : "Testing..."
},
{
"category": "information",
"message" : "Completed!"
}
],
"production": [
{
"category": "information",
"message" : "Building..."
},
{
"category": "error",
"message" : "Build Failed!"
}
]
}
} |
| XPath | JSONPath | Result |
/store/book/author | $.store.book[*].author | the authors of all books in the store |
//author | $..author | all authors |
/store/* | $.store.* | all things in store, which are some books and a red bicycle. |
/store//price | $.store..price | the price of everything in the store. |
//book[3] | $..book[2] | the third book |
//book[last()] | $..book[(@.length-1)]$..book[-1:] | the last book in order. |
//book[position()<3] | $..book[0,1]$..book[:2] | the first two books |
//book[isbn] | $..book[?(@.isbn)] | filter all books with isbn number |
//book[price<10] | $..book[?(@.price<10)] | filter all books cheapier than 10 |
//* | $..* | all Elements in XML document. All members of JSON structure. |
Successful Response Statues