How to send list of values from postman query params c#

Question

Hi i need to post multiple values to the database at a single request .

Here i need to pass multiple storage address and read those values as json in c# . I had tried following code

var request = HttpContext.Current.Request;

string[] StorageAddress = request.Params["StorageAddress"];

but i am not getting response as i required how to pass multiple values through postman url params and read it in code.

UPDATE

What framework are you using to handle this request? e.g. API controller. You might want to look at setting up the action on the controller to take the query parameters into part of the route as an input to the action. — Joe_DM, Sep 05 '20 at 08:07
If your are Web API, decorate your method parameter like this [FromQuery] string[] StorageAddress, this will do the trick. — Purushothaman, Sep 05 '20 at 08:26

tontonsevilla · Accepted Answer · 2020-09-06T12:41:00.180

Article/Reference: Arrays in query params

Retrieve Option 1

var request = HttpContext.Current.Request;
string[] StorageAddress = request.Params["StorageAddress"].Split(',');

Retrieve Option 2

public IHttpActionResult Get([FromUri] string[] StorageAddress )
{
    ....
}

UPDATE with PostMan passing JSON

You can use Retrieve Option 3

public IHttpActionResult Get(string[] StorageAddress )
{
    ....
}

Retrieve Option 4 with Newtonsoft

var json = await Request.Content.ReadAsStringAsync();
var storageAddress = JsonConvert.DeserializeObject<string[]>(json);

Retrieve Option 5 for mix of json data and files. For postman passing you refer to this How to upload a file and JSON data in Postman?.

public async Task<IHttpActionResult> Post()
{
    var atorageAddress = HttpContext.Current.Request.Form["StorageAddress"].Split(',');
    var files = HttpContext.Current.Request.Files;
    List<HttpPostedFile> fileList = new List<HttpPostedFile>();
    foreach (var key in files.AllKeys)
    {
        // Do your logic here for manipulation of the files
        fileList.Add(files[key]);
    }

    return Json("OK");
}

UPDATE: Retrieve JSON

Set your JSON like this.

[{"Address":"Test Store 1"},{"Address":"Test Store 2"}]
Retrieve it like this.

var storageAddress = JsonConvert.DeserializeObject<List<Dictionary<string, string>>>(HttpContext.Current.Request.Form["StorageAddress"]);

but i need to read it as json format and i cannot user second option because i need to pass image also using second option i cant pass image — chethu, Sep 05 '20 at 08:40
@ tontonsevilla yes i know this method but i can't pass it from raw data because i also need to pass images from formdata in that both will not work when i send request — chethu, Sep 05 '20 at 09:36
i am passing value as `{"Address":"Test Store 1"},{"Address":"Test Store 2"}` in postman how to read Address value of each in c# — chethu, Sep 06 '20 at 06:29
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/221033/discussion-between-tontonsevilla-and-chethu). — tontonsevilla, Sep 06 '20 at 07:06

Arai680 · Answer 2 · 2020-09-05T16:27:09.537

-1

You can add a parameters in your controller which handled a csv param like a StorageAddresses (ex http://localhost:30601/api/licence/seeds/application/finalsubmit?StorageAddresses=test%20score%201,test%20score%202)

You can follow this tutorial to implement it in your site https://www.strathweb.com/2017/07/customizing-query-string-parameter-binding-in-asp-net-core-mvc/

edited Sep 05 '20 at 16:27

answered Sep 05 '20 at 08:29

Arai680

9
3

Consider rephrasing your Answer to make it sound less like a question. Please also show how the code in the link answer the Question. At present you're forcing a click-through and your Answer isn't self-contained. See ["Provide context for links"](https://stackoverflow.com/help/how-to-answer). – Scratte Sep 05 '20 at 11:48

How to send list of values from postman query params c#

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