Multiple Bodies in a POST operation

Question

I have the following question, I want to make a request for a POST, I have 13 different Body's in environment variables, how can I put all 13 at the same time in Postman to execute? Is there any way?

This is my code: Some Bodies:

{ "et": "conta", "na": "List", "T": "list", "OPT": [ "TL-1", "TL-2" ], "DBY": "names user", "iM": false }

{ "et": "conta", "na": "Integer", "T": "integer", "DBY": "namesUser", "iM": false }

{ "et": "conta", "na": "MultiSelectList", "T": "multiSelect", "opt": [ "L1", "L2", "L3" ], "DBY": "names user", "iM": true }

What I am doing but I get error 400:

[
    {{List}},
    {{Integer}}
]

So I would like to know if there is any way to be able to execute the 13 Body's placing them all at the same time

What did you already try? Please share your code/ requests. Thanks for considering [How do I ask a good question](https://stackoverflow.com/help/how-to-ask)? and [How to create a Minimal, Reproducible Example](https://stackoverflow.com/help/minimal-reproducible-example). — Christian Baumann, Oct 27 '20 at 06:35
No, @Christian Baumann, they are different variables, one for each Body. — DastanAli, Oct 27 '20 at 14:20
Do you want to send 13 requests at the very same time, each using different bodies? Or you want to send 1 request with the data from all 13 variables as one body? — Christian Baumann, Oct 27 '20 at 16:31
I would like to send all 13 at the same time, as if it were a JSON, if possible, if it is not, I will continue to do it as I have done so far, one variable at a time — DastanAli, Oct 27 '20 at 17:07
What is the API your working against? Any documentation available? — Christian Baumann, Oct 27 '20 at 18:58

Casper Dijkstra · Accepted Answer · 2020-10-28T07:38:46.223

1

Json arrays (https://restfulapi.net/json-array/) should be used for this

    [
        { 
             "et": "conta", 
             "na": "List", 
             "T": "list", 
             "OPT": [ 
                 "TL-1", 
                 "TL-2" 
             ], 
             "DBY": "names user", 
             "iM": false 
        },
        {
             (second array)
        },
        .
        .
        .
        {
             (thirteenth array)
        }
    ]

Good to know: you can use this tool to verify your json; https://jsonlint.com/

Whether or not this results in a status 400 error depends on the implementation of the web api's post method (and you mentioned this happens). In .NET, the received json should be converted to a List<T> instead of type T.

If you posting to your own api, try changing it according to: https://forums.asp.net/t/2098779.aspx?How+to+change+WEB+API+to+accept+a+JSON+Array+for+multiple+entries+
If it's an external api, sending an array won't work. You have to send the data sequentially, but there are some tips and tricks preventing you from doing this manually in Postman: How to Send multiple request concurrently/Sequentially in postman with different set of values for each request?

edited Oct 28 '20 at 07:38

answered Oct 27 '20 at 13:55

Casper Dijkstra

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I already tried something like this, but I still have Status Code: 400 Bad Request, I think rather that the EndPoint does not allow me to do this type of action. – DastanAli Oct 27 '20 at 14:24
Can you send simpler json `{ "et": "conta", "na": "List", "T": "list", "OPT": [ "TL-1", "TL-2" ], "DBY": "names user", "iM": false }` to this endpoint? Or does it also result in status 400? – Casper Dijkstra Oct 27 '20 at 14:27
With only one it works, but when I put 2 or more, it gives me the error 400 – DastanAli Oct 27 '20 at 17:26
Hmm weird. And you verified it's valid json? – Casper Dijkstra Oct 27 '20 at 19:39
Sure, I validated them and if they are valid, however I don't know if it has to do with the POST, maybe it doesn't allow it, I don't know ... – DastanAli Oct 27 '20 at 20:04
Error 400 tells that the server was unable to process your request. Where are you sending the json to, and are you sure it can de deserialized properly? – Casper Dijkstra Oct 27 '20 at 20:44
That's the part that I don't know, that's why I say it has to be the POST method that I have. – DastanAli Oct 27 '20 at 21:04
Yes the post method doesn't support this syntax. I've sent some links with ways to implement that. – Casper Dijkstra Oct 29 '20 at 15:32
I appreciate it @Casper Dijkstra, I will review them. – DastanAli Oct 29 '20 at 15:37

Multiple Bodies in a POST operation

1 Answers1