How to: Submit one or more sets of JSON data dependent on scenario?

Ask the Experts and Postman Tips
1

Not sure if my title has explained this properly so I will use an example.

Say you have an endpoint where you have the option of submitting one or multiple classes such as:

[
  {
    "courseNbr": 1234,
    "isDeleted": false,
    "prefOrder": 1
  },
  {
    "courseNbr": 345,
    "isDeleted": false,
    "prefOrder": 2
  }
]

However, I’m using data files to pass the course information. Sometimes I want to submit one course and other times I want to submit more then that.

Does anyone know of a way I could perhaps use a pre-request script to check the amount of items inside the JSON data file and then submit that as part of the Body?

2

Why do you need to check how many items there are?

If the property is an array, it is totally acceptable to pass in a single item.

Are there other properties that need to be set accordingly?

3

Hi Allen,

Because the way I submit the data is like this:

[
{
“courseNbr”: {{courseNbr}},
“isDeleted”: {{isDeleted}},
“prefOrder”: {{prefOrder}}
}
]

{{}} being the variables for the data file. But if I want to add two or more items, it will only detect the first course.

I did figure out a way to send the data from a pre request script to the body, however I am having trouble formatting the data.