API not accepting List of objects as a parameter .Net Core webAPI

Question

I am working on an API that accepts a list of Objects as a parameter. This is the Api I am working with:

[HttpPost("PharmacySupply")]
        public async Task<List<PharmacyMedicineSupply>> GetPharmacySupply(List<MedicineDemand> medDemand)
        {
            SupplyRepo sr = new SupplyRepo();
            return await sr.GetPharmacySupply(medDemand);
        }

This is my model :

public class MedicineDemand
    {
        public string Medicine { get; set; }
        public int DemandCount { get; set; }
    }

I am passing this in swagger as parameter:

[
{Dolo,7},
{Cholecalciferol,9},
{Orthoherb,5},
{Gaviscon,2},
{Hilact,3}
{Cyclopam,1}
]

but the parameter is empty . It is showing a count of 0 while debugging. What am I doing wrong?

Martin · Accepted Answer · 2021-05-25 23:26:11Z

3

Try to add [FromBody] if you are testing using postman. (See [FromBody] documentation here)

 public async Task<List<PharmacyMedicineSupply>> GetPharmacySupply([FromBody] List<MedicineDemand> medDemand)

for test in postman you have to use

[
   { "Medicine": "Dolo", "DemandCount" : 7},
   { "Medicine": "Cholecalciferol", "DemandCount" : 9},
   ...
]

and if maybe you try for testing in swagger with this

[
   { "Dolo" , 7 },
   { "Cholecalciferol" , 9 },
   ...
]

edited May 25, 2021 at 23:26

Martin

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answered May 25, 2021 at 17:49

Serge

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1 Comment

Andy Over a year ago

@sapter -- you asked this question 6 hours ago and I told you in comments to put [FromBody] in the parameters. Please don't ask the same question multiple times.

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