Using a variable key to retrieve response value in Postman

Question

Using a variable key to retrieve response value in Postman

After setting up a GET request in Postman that retrieves JSON data, I'm looking to extract the values for keys containing a specific substring.

Here's the code snippet I've been testing:

var jsonData = pm.response.json();
var keys = Object.keys(jsonData);

for(var i = 0; i < keys.length; i++) 
{
    if(keys[i].includes("_number"))
    { 
       console.log(jsonData[keys[i]]);
    }
}

Edit: It seems that the issue lies not in identifying the specified substrings, but in retrieving the corresponding values. Accessing a value directly by key (e.g., jsonData.Id) works without issues, yet using a variable seems to be causing trouble.

javascript json postman postman-testcase

Answer 1

Answer №1

To verify, follow these steps:

let responseData = pm.response.json();
let dataKeys = Object.keys(responseData);

for(let j = 0; j < dataKeys.length; j++) 
{
    if(dataKeys[j].includes('_num'))
    { 
       console.log(responseData[dataKeys[j]]);
    }
}

Answer 2

To verify, follow these steps:

let responseData = pm.response.json();
let dataKeys = Object.keys(responseData);

for(let j = 0; j < dataKeys.length; j++) 
{
    if(dataKeys[j].includes('_num'))
    { 
       console.log(responseData[dataKeys[j]]);
    }
}

Answer 3

Answer №2

Utilizing the has() method is specifically designed to locate an exact key within a map. To search for a substring, consider this alternative approach:

if(keys[i].indexOf("_number") !== -1)
{ 
   console.log(jsonData.keys[i]);
}

An additional option is to use the includes() function:

if(keys[i].includes("_number"))
{ 
   console.log(jsonData.keys[i]);
}

Answer 4

Utilizing the has() method is specifically designed to locate an exact key within a map. To search for a substring, consider this alternative approach:

if(keys[i].indexOf("_number") !== -1)
{ 
   console.log(jsonData.keys[i]);
}

An additional option is to use the includes() function:

if(keys[i].includes("_number"))
{ 
   console.log(jsonData.keys[i]);
}

Answer 5

Answer №3

Another approach can be used to achieve similar results when checking data in the Postman Console:

For a slightly modified technique, you could iterate through jsonData using _.each and examine each item as follows:
    
_.each(Object.entries(jsonData), (item) => {
    if(item[0].includes('_number')) {
        console.log(item[1])
    }
})

Answer 6

Another approach can be used to achieve similar results when checking data in the Postman Console:

For a slightly modified technique, you could iterate through jsonData using _.each and examine each item as follows:
    
_.each(Object.entries(jsonData), (item) => {
    if(item[0].includes('_number')) {
        console.log(item[1])
    }
})

Using a variable key to retrieve response value in Postman

Answer №1

Answer №2

Answer №3

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