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I have an API that receives a string token. This API has a Post method, and is expecting the string in the body:

[HttpPost("refreshToken")]
[Produces(MediaTypeNames.Application.Json)]
public async Task<ActionResult<JwtTokenDTO>> RefreshToken([FromBody] string token)
{
    // ...
}

But I cannot figure out how to send this string to the API.

I have tried using

  • AddStringBody
  • AddParameter
  • AddJsonBody

My code:

private async Task<(bool Success, JwtTokenDTO? Token)> RefreshToken(string? refreshToken)
{
    RestRequest request = new RestRequest("api/refreshToken");
    //request.AddStringBody(refreshToken, DataFormat.Json);
    //request.AddParameter("token", refreshToken, ParameterType.RequestBody);
    //request.AddParameter("token", refreshToken, ParameterType.GetOrPost);
    //request.AddJsonBody(new { Token = refreshToken }); // This works with complex object in the Api request.

    request.AddQueryParameter("token", refreshToken, true); // This works removing the [FromBody] in the Api.

    var response = await _client.ExecutePostAsync<ApiResponse<JwtTokenDTO>>(request);
    // ...
}

The only thing it seems to work is

  • Removing [FromBody] from the API method and send the value in the query string (AddQueryParameter)
  • Or using a complex object in the API and send the value with AddJsonBody

In Postman, I can easily send the string as shown here:

How can I send the string using in API and a [FromBody] string token?

Thanks

I have an API that receives a string token. This API has a Post method, and is expecting the string in the body:

[HttpPost("refreshToken")]
[Produces(MediaTypeNames.Application.Json)]
public async Task<ActionResult<JwtTokenDTO>> RefreshToken([FromBody] string token)
{
    // ...
}

But I cannot figure out how to send this string to the API.

I have tried using

  • AddStringBody
  • AddParameter
  • AddJsonBody

My code:

private async Task<(bool Success, JwtTokenDTO? Token)> RefreshToken(string? refreshToken)
{
    RestRequest request = new RestRequest("api/refreshToken");
    //request.AddStringBody(refreshToken, DataFormat.Json);
    //request.AddParameter("token", refreshToken, ParameterType.RequestBody);
    //request.AddParameter("token", refreshToken, ParameterType.GetOrPost);
    //request.AddJsonBody(new { Token = refreshToken }); // This works with complex object in the Api request.

    request.AddQueryParameter("token", refreshToken, true); // This works removing the [FromBody] in the Api.

    var response = await _client.ExecutePostAsync<ApiResponse<JwtTokenDTO>>(request);
    // ...
}

The only thing it seems to work is

  • Removing [FromBody] from the API method and send the value in the query string (AddQueryParameter)
  • Or using a complex object in the API and send the value with AddJsonBody

In Postman, I can easily send the string as shown here:

How can I send the string using in API and a [FromBody] string token?

Thanks

  • c#
  • restsharp
Share Improve this question edited Mar 30 at 12:46 marc_s 756k184 gold badges1.4k silver badges1.5k bronze badges asked Mar 30 at 12:30 Marlon FezMarlon Fez 514 bronze badges
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2 Answers 2

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According to the comments #1270802845 and #1271225067 on RestRequest post fails when using AddBody with string. This worked fine in 107.3.0. #1886,

it should be worked to send the string as request body with:

request.AddJsonBody(refreshToken);

or

request.AddParameter(new JsonParameter("", refreshToken));

When you want to send a string in the request body, such as an token, you can use the AddBody or AddStringBody method and set the content type to text/plain. The following alternatives are possible:

request.AddBody("Example token", ContentType.Plain);

or

request.AddHeader("Content-Type", "text/plain");
request.AddBody("Example token");

or

request.AddStringBody("Example token", ContentType.Plain);

The AddStringBody method also has an overload with a DataFormat enum as parameter type (as you tried), which supports Xml, Json and Binary format, but does not have an explicit value for plain text, it works when set to None however.

request.AddStringBody("Example token", DataFormat.None);

When the content type has not been set correctly it will result in a response returning status code 415, stating the request failed because of an unsupported media type.

本文标签： cHow to send a simple string in a body of a Post request in RestSharpStack Overflow

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