ASP.Core Uploading image with Axios

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I am trying to upload an image to a server with Axios, but having Error 400 "Bad Request". I have tried many different ways to implement it: explicitly specifying a "Content-Type", changing controller, trying $.ajax, etc. from Google.

A brief description of what I am expecting: I choose an image as suggested by <input/> and once I submit my choice it is sent to the server.

Currently, in my controller, I set a breakpoint, however, I've never seen request entering it.

My stack is Asp.Core WebAPI + React.js + Axios. I have stopped on the following code:

Controller:

[Route("api/char")]
[ApiController]
public class CharacterController : ControllerBase
{
    [HttpPost]
    [Route("[action]")]
    public async Task<IActionResult> SetProfilePhoto(IFormFile file)
    {
        return Ok();
    }
}

React Component:

export default class BioEdit extends React.Component {
        ...
        changePhoto = event => {
             event.preventDefault();

             const file = event.target.files[0];

             const formData = new FormData();
             formData.append("File", file);

             Axios.post("api/char/SetProfilePhoto", formData, {
                  headers: { 'Content-Type': 'multipart/form-data' }
             })
                  .catch(error => console.log(error));
         }
         render(){
             return (
                 <label >
                     <img src={this.state.char.image} width="30%" height="30%" className="border border-secondary" />
                     <input type="file" style={{ display: "none" }} accept="image/*" onChange={this.changePhoto} />
                 </label>
            );
        }
    }

Here is what I have in the browser (Yandex browser it is to be specific, based on Chrome):


But React Native didn't make it. React Native function uploadPhoto = async response => { const data = new FormData(); data.append("image",  Dismiss Join GitHub today. GitHub is home to over 50 million developers working together to host and review code, manage projects, and build software together.


add undefined content type. it should work then

         Axios.post("api/char/SetProfilePhoto", formData, {
              headers: { 'Content-Type': undefined }
         })

In this article, see how to upload files using ASP. we will learn how to upload files, images or videos using ASP. npm install --save axios. ASP.NET Core FileUpload with Vue.JS & Axios. This repository has package.json with installed Babel loader, webpack & npm. A simple file upload that supports multiple file upload.


In this article, you will learn about file upload using ASP. this tutorial, we will learn how to upload files, Images or Videos using Asp.net Web API and ReactJS. Now Install the Axios library by using the following command. Post Data From VueJs To ASP.NET CORE Using Axios Published on July 28, 2017 July 28, 2017 • 30 Likes • 9 Comments


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