How can I check if array has an objects in Postman

Question

I have a response the array with objects like this:

[
    {
        "id": 1,
        "name": "project one"
    },
    {
        "id": 2,
        "name": "project two"
    },
    {
        "id": 3,
        "name": "project three"
    }
]

Have can I check if my responsed array have an object { "id": 3, "name": "project three" } for example? I am trying to check by this way but it didn't work:

pm.test('The array have object', () => {
    pm.expect(jsonData).to.include(myObject)
})

PDHide · Accepted Answer · 2021-02-03 18:51:31Z

2

you can validate this also using includes after converting it to string using JSON.stringify

pm.expect(JSON.stringify(data)).to.include(JSON.stringify({
    "id": 3,
    "name": "project three"
}))

Also you can use lodash function some/any:

pm.expect(_.some(data,{
    "id": 3,
    "name": "project three"
})).to.be.true

https://lodash.com/docs/3.10.1#some

Note: Postman works in a sandbox and only below libraries are suported:

https://learning.postman.com/docs/writing-scripts/script-references/postman-sandbox-api-reference/#using-external-libraries

answered Feb 3, 2021 at 18:51

PDHide

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1 Comment

Dillon Over a year ago

If you need a higher version of lodash than the provided global _ object (which at the time of writing uses 3.10.1) you must require it manually: var latestLodashVersion = require('lodash');

fiveobjects · Accepted Answer · 2021-02-03 10:02:58Z

pm.expect(jsonData).to.include(myObject) works for String but not for Object. You should use one of the following functions and compare each property of the object:

Array.filter()
Array.find()
Array.some()

Examples:

data = [
    {
        "id": 1,
        "name": "project one"
    },
    {
        "id": 2,
        "name": "project two"
    },
    {
        "id": 3,
        "name": "project three"
    }
];
let object_to_find = { id: 3, name: 'project three' }

// Returns the first match
let result1 = data.find(function (value) {
    return value.id == object_to_find.id && value.name == object_to_find.name;
});

// Get filtered array
let result2 = data.filter(function (value) {
    return value.id == object_to_find.id && value.name == object_to_find.name;
});

// Returns true if some values pass the test
let result3 = data.some(function (value) {
    return value.id == object_to_find.id && value.name == object_to_find.name;
});

console.log("result1: " + result1.id + ", " + result1.name);
console.log("result2 size: " + result2.length);
console.log("result3: " + result3);

Use one of the ways while asserting in Postman.

JrmDel · Accepted Answer · 2023-11-29 10:18:19Z

1

You can also use the to.deep.include syntax. In your case, it would look like this:

pm.test('The array have object', () => {
    pm.expect(jsonData).to.deep.include({ id: 2, name: "project two" })
    pm.expect(jsonData).to.deep.include({ id: 3, name: "project three" })
    pm.expect(jsonData).to.deep.include({ id: 1, name: "project one" })
})

answered Nov 29, 2023 at 10:18

JrmDel

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How can I check if array has an objects in Postman

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Also you can use lodash function some/any:

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Also you can use lodash function some/any:

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