web
You’re offline. This is a read only version of the page.
close
Skip to main content
Community site session details

Community site session details

Session Id :
Small and medium business | Business Central, N...
Suggested answer

Update attachment content via API call

(0) ShareShare
ReportReport
Posted on by 30

I am creating an attachment in Business Central and trying to update attachment content in my application by calling PATCH API "">api.businesscentral.dynamics.com/.../attachmentContent"  in my application.

I am reading the attachment file content from blob storage as BinaryData. And, using below code snippet to call PATCH API. The data is updated in attachment in Business Central. However, when we download the attachment file from Business Central, the file is corrupted and unable to open. I am supposed to upload any file formats (like PDF, xlsx, docx, txt, etc).

public HttpResponseMessage UpdatePurchaseInvoiceAttachmentContent(string mediaEditApi, BinaryData binaryData)
{
Console.WriteLine("Method - UpdatePurchaseInvoiceAttachmentContent");
HttpRequestMessage httpRequestMessage = null;
HttpResponseMessage httpResponseMessage = null;
HttpClient httpClient = null;
try
{
httpRequestMessage = new HttpRequestMessage(HttpMethod.Patch, mediaEditApi);
httpClient = GetHttpClientWithAuthHeader();
string contentJson = JsonSerializer.Serialize(binaryData.ToString());
httpRequestMessage.Content = new StringContent(contentJson);
httpRequestMessage.Headers.TryAddWithoutValidation("Content-Type","application/json");
httpRequestMessage.Headers.TryAddWithoutValidation("If-Match", "*");
Task<HttpResponseMessage> response = httpClient.SendAsync(httpRequestMessage);
httpResponseMessage = response.Result;
httpResponseMessage.EnsureSuccessStatusCode();
}
catch(Exception ex)
{
Console.WriteLine(ex);
}
return httpResponseMessage;
}

Any pointers to update attachment content code snippet will be much appreciated.

I have the same question (0)
  • dynamicsdevman Profile Picture
    30 on at
    RE: Update attachment content via API call

    Finally I made it.. I converted the binary data into stream and assigned StreamContent to HttpRequestMessage.Content. And, it worked fine, able to download and open the file.

    public HttpResponseMessage UpdatePurchaseInvoiceAttachmentContent(string mediaEditApi, BinaryData binaryData)
    {
    Console.WriteLine("Method - UpdatePurchaseInvoiceAttachmentContent");
    HttpRequestMessage httpRequestMessage = null;
    HttpResponseMessage httpResponseMessage = null;
    HttpClient httpClient = null;
    try
    {
    httpRequestMessage = new HttpRequestMessage(HttpMethod.Patch, mediaEditApi);
    httpClient = GetHttpClientWithAuthHeader();
    httpRequestMessage.Content = new StreamContent(binaryData.ToStream());
    httpRequestMessage.Headers.TryAddWithoutValidation("Content-Type","application/json");
    httpRequestMessage.Headers.TryAddWithoutValidation("If-Match", "*");
    Task<HttpResponseMessage> response = httpClient.SendAsync(httpRequestMessage);
    httpResponseMessage = response.Result;
    httpResponseMessage.EnsureSuccessStatusCode();
    }
    catch(Exception ex)
    {
    Console.WriteLine(ex);
    }
    return httpResponseMessage;
    }

  • Suggested answer
    Marco Mels Profile Picture
    on at
    RE: Update attachment content via API call

    Thank you for sharing final solution.

    Thanks.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Abhilash Warrier – Community Spotlight

We are honored to recognize Abhilash Warrier as our Community Spotlight honoree for…

Leaderboard > Small and medium business | Business Central, NAV, RMS

#1
Rishabh Kanaskar Profile Picture

Rishabh Kanaskar 4,232

#2
Nimsara Jayathilaka. Profile Picture

Nimsara Jayathilaka. 2,863

#3
Sumit Singh Profile Picture

Sumit Singh 2,819

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans