i'm trying to return a blob from my nextjs v12 api with res.send(blob), and trying to access the blob in my frontend with await res.blob(). but i'm getting a blob of type application/json when it should be application/x-tar. i have my content-type header set to application/x-tar in my api.
#res.send returning incorrect blob type
pine swallow
minor bayBOT
Hi @pine swallow. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
Based on the information provided in the extracts, it seems like you're correctly setting the Content-Type header in your API response. However, there might be some other factors causing the issue.
In Next.js, the res.send() method can handle various types of data, including Buffer, string, and object. If you're sending a Buffer, it should be correctly interpreted by the client if the Content-Type is set correctly.
Here's a simplified example of how you might be using res.send() in your API route:
res.setHeader('Content-Type', 'application/x-tar');
res.send(blob);
If you're still facing issues, it might be due to some other part of your code or a bug in Next.js or your client-side code. Unfortunately, the provided extracts do not contain enough information to diagnose the issue further.
For more information on handling responses in Next.js API routes, you can refer to the Next.js API Routes documentation (https://nextjs.org/docs/api-routes/introduction).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
pine swallow
@minor bay when my content-type is application/x-tar, should i send a blob or buffer thru the api?
minor bayBOT
Let me check the knowledge base for you. One moment! :books:
In a Next.js API route, when you're dealing with binary data like a tar file, you should send it as a Buffer. The res.send() method in Next.js can handle Buffer data. Here's an example:
res.setHeader('Content-Type', 'application/x-tar');
res.send(yourBuffer);
In this example, yourBuffer should be a Buffer containing your tar file data.
Remember, the client will need to interpret the response as a blob if it's expecting a blob. This can usually be done with the blob() method on the response object in the fetch API.
For more information on handling responses in Next.js API routes, you can refer to the Next.js API Routes documentation (https://nextjs.org/docs/api-routes/introduction).
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
minor bayBOT
Let me check the knowledge base for you. One moment! :books:
pine swallow
oh shoot
minor bayBOT
As an AI, I don't have feelings, but I'm here to help you with your questions about Next.js! If you have any more questions or need further assistance, feel free to ask.
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
pine swallow
ma fault