CODEWITHSUNDEEP
jsonasp.net-web-apipostman
Noufal
Noufal

Reputation: 115

How to pass json array as a string to web api from postman

My Json [Body] structure in postman is given below

[{
  "SerialNumber": "dev1",

  "CustomerId": "cust1",

  "Seed": "c393d900-2f25-819f-cc83-0721357bcf10",

  "BitLockerKey": null,

  "bitLockerRecoveryKey": null

   },

 {

  "SerialNumber": "dev2",

  "CustomerId": "cust2",

  "Seed": "c393d900-2f25-819f-cc83-0721357bcf22",

  "BitLockerKey": null,

  "bitLockerRecoveryKey": null

}]

My web api function is given below,

    [HttpPost]
    public ActionResult<string> SaveData([FromBody] string Data)
    {
        int result = _seedService.SeedGeneration(Data);
        return result > 0 ? Ok(result) : (ActionResult<string>)UnprocessableEntity("Seed generation 
        Failed");
    }

My question is, how to pass data as string with json array structure in postman. i got the error "JSON value could not be converted to System.string

Upvotes: 0

Views: 1173

Answers (2)

Noufal
Noufal

Reputation: 115

I have installed Microsoft.AspNetCore.Mvc.NewtonsoftJson package & modified the function. removed string as parameter & included JsonElement in parameter.

[HttpPost]

public ActionResult<string> SaveData([FromBody] JsonElement Data)
{
    string json = System.Text.Json.JsonSerializer.Serialize(Data);
    int result = _seedService.SeedGeneration(json);
    return result > 0 ? Ok(result) : (ActionResult<string>)UnprocessableEntity("Seed 
    generation Failed");
}

Upvotes: 1

Lucas SIlva
Lucas SIlva

Reputation: 96

Using JSON.stringify(jsonValue) you can convert a JSON object to string via javascript.

The result is the following:

"[{"SerialNumber":"dev1","CustomerId":"cust1","Seed":"c393d900-2f25-819f-cc83-0721357bcf10","BitLockerKey":null,"bitLockerRecoveryKey":null},{"SerialNumber":"dev2","CustomerId":"cust2","Seed":"c393d900-2f25-819f-cc83-0721357bcf22","BitLockerKey":null,"bitLockerRecoveryKey":null}]"

You can also declare the action parameter as an array of an object with the structure of your Json and the Asp.Net mechanism you handle it for you.

Upvotes: 0

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