Return a dynamic list of json objects in Web Api

Question

I have an action in controller which performs a logic to return a list of json objects. In postman, I want to get this list in json format.

    [HttpPost("display")]
    [Produces("application/json")]
    public async Task<IActionResult> DisplayPersons([FromBody] Person person)
    {
           var generatedFile = JsonConvert.DeserializeObject<List<dynamic>>(await 
                      httpResponse.Content.ReadAsStringAsync());
            
            return Ok(generatedFile);
    }

When I put a breakpoint on the generatedFile, I get the values. But on postman, it does not display anything. How can I display the nested list of json objects on postman?

Yiyi You · Accepted Answer · 2020-10-21 03:22:08Z

1

Here is a demo to pass List to postman,you need to make sure generatedFile is a list<object>,and in postman response you need to make sure status is 200 and you are watching body rather than Cookies,Headers or Test Results:

Controller:

        [HttpPost("display")]
        [Produces("application/json")]
        public async Task<IActionResult> DisplayPersons([FromBody]List<dynamic> list)
        {
            return Ok(list);
        }

Testjson:

[
    {
    "Id":1,
    "Name":"sss",
    "Class":"c1"
    },
    {
    "Id":2,
    "Name":"www",
    "Class":"c2"
    }
]

result:

answered Oct 21, 2020 at 3:22

Yiyi You

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