C#•14mo ago

❔ Unable to process post request with asp.net core

I am making use of a document processing component (https://ej2.syncfusion.com/react/documentation/document-editor/web-services/core), where i need to use asp.net core for some server dependencies such as importing a docx file into the documenteditor. My problem is that I don't know wheter my fetch method is not working (and maybe wrong usage of my endpoints) or that the asp.net core application is not even running correctly

5 Replies

paulman176•14mo ago

when i typed dotnet run it said:

      Now listening on: http://localhost:5179
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Development
info: Microsoft.Hosting.Lifetime[0]
      Content root path: /Users/paulvanmierlo/Projects/Contractmanagement/Contractmanagement
warn: Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]
      Failed to determine the https port for redirect.

      Now listening on: http://localhost:5179
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Development
info: Microsoft.Hosting.Lifetime[0]
      Content root path: /Users/paulvanmierlo/Projects/Contractmanagement/Contractmanagement
warn: Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]
      Failed to determine the https port for redirect.

Unknown User•14mo ago

Message Not Public

paulman176•14mo ago

i succesfully figured out that the http responses are working because i created a simple get request to make sure i am able to get some response from my server ( a simple OK message) Tried it with swagger and postman and both responded with OK so maybe there is something wrong with how i am fetching the data? also this is my console log from within the browser:

OK response received

OK response received

for the sample get request i am using the same port as URL for the get request as for the post request i am still not able to perform this is the controller code:

using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Syncfusion.EJ2.DocumentEditor;
using System.IO;

[ApiController]
[Route("[controller]")]
public class ImportController : ControllerBase
{

    [AcceptVerbs("Post")]
    [HttpPost]
    [EnableCors("AllowAllOrigins")]
    [Route("Import")]
    public string Import(IFormCollection data)
    {
        if (data.Files.Count == 0)
            return null;
        Stream stream = new MemoryStream();
        IFormFile file = data.Files[0];
        int index = file.FileName.LastIndexOf('.');
        string type = index > -1 && index < file.FileName.Length - 1 ?
            file.FileName.Substring(index) : ".docx";
        file.CopyTo(stream);
        stream.Position = 0;

        WordDocument document = WordDocument.Load(stream, GetFormatType(type.ToLower()));
        string json = Newtonsoft.Json.JsonConvert.SerializeObject(document);
        document.Dispose();
        return json;
    }

    private FormatType GetFormatType(string fileExtension)
    {
        if (string.IsNullOrEmpty(fileExtension))
            throw new NotSupportedException("EJ2 DocumentEditor does not support this file format.");
        switch (fileExtension)
        {
            case ".docx":
                return FormatType.Docx;
            case ".doc":
                return FormatType.Doc;
            case ".rtf":
                return FormatType.Rtf;
            case ".txt":
                return FormatType.Txt;
            // Add more cases for other supported file extensions if needed
            default:
                return FormatType.Docx; // Default to a specific format if the extension is not recognized
        }
    }
}

using Microsoft.AspNetCore.Cors;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Syncfusion.EJ2.DocumentEditor;
using System.IO;

[ApiController]
[Route("[controller]")]
public class ImportController : ControllerBase
{

    [AcceptVerbs("Post")]
    [HttpPost]
    [EnableCors("AllowAllOrigins")]
    [Route("Import")]
    public string Import(IFormCollection data)
    {
        if (data.Files.Count == 0)
            return null;
        Stream stream = new MemoryStream();
        IFormFile file = data.Files[0];
        int index = file.FileName.LastIndexOf('.');
        string type = index > -1 && index < file.FileName.Length - 1 ?
            file.FileName.Substring(index) : ".docx";
        file.CopyTo(stream);
        stream.Position = 0;

        WordDocument document = WordDocument.Load(stream, GetFormatType(type.ToLower()));
        string json = Newtonsoft.Json.JsonConvert.SerializeObject(document);
        document.Dispose();
        return json;
    }

    private FormatType GetFormatType(string fileExtension)
    {
        if (string.IsNullOrEmpty(fileExtension))
            throw new NotSupportedException("EJ2 DocumentEditor does not support this file format.");
        switch (fileExtension)
        {
            case ".docx":
                return FormatType.Docx;
            case ".doc":
                return FormatType.Doc;
            case ".rtf":
                return FormatType.Rtf;
            case ".txt":
                return FormatType.Txt;
            // Add more cases for other supported file extensions if needed
            default:
                return FormatType.Docx; // Default to a specific format if the extension is not recognized
        }
    }
}

and this is how i am fetching the data

DocumentEditorComponent.Inject(Toolbar);
export default function Documenteditor() {
 // Function to handle the document import
 const importDocument = (file) => {
    const formData = new FormData();
    formData.append('file', file); // Assuming you have a file object from an input field

    fetch('https://localhost:7166/Import/Import', {
      method: 'POST',
      body: formData,
    })
      .then((response) => {
        if (response.ok) {
          return response.json();
        } else {
          throw new Error('Error importing document');
        }
      })
      .then((document) => {
        console.log(document); // Handle the imported document data
      })
      .catch((error) => {
        console.error('Error importing document:', error);
      });
  };

  // Event handler for file input change
  const fileInputOnChange = (event) => {
    const file = event.target.files[0];
    importDocument(file);
  };
  
    return (
        <>
        <input type="file" onChange={fileInputOnChange} />
        <DocumentEditorContainerComponent id="container" height={'1000px'} enableToolbar={true}>
          <Inject services={[Toolbar]} />
        </DocumentEditorContainerComponent>
      </>
    );
}

DocumentEditorComponent.Inject(Toolbar);
export default function Documenteditor() {
 // Function to handle the document import
 const importDocument = (file) => {
    const formData = new FormData();
    formData.append('file', file); // Assuming you have a file object from an input field

    fetch('https://localhost:7166/Import/Import', {
      method: 'POST',
      body: formData,
    })
      .then((response) => {
        if (response.ok) {
          return response.json();
        } else {
          throw new Error('Error importing document');
        }
      })
      .then((document) => {
        console.log(document); // Handle the imported document data
      })
      .catch((error) => {
        console.error('Error importing document:', error);
      });
  };

  // Event handler for file input change
  const fileInputOnChange = (event) => {
    const file = event.target.files[0];
    importDocument(file);
  };
  
    return (
        <>
        <input type="file" onChange={fileInputOnChange} />
        <DocumentEditorContainerComponent id="container" height={'1000px'} enableToolbar={true}>
          <Inject services={[Toolbar]} />
        </DocumentEditorContainerComponent>
      </>
    );
}

Unknown User•14mo ago

Message Not Public

Accord•14mo ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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❔ Unable to process post request with asp.net core