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Home Backend Development Golang I can't add header to specific multipart in golang

I can't add header to specific multipart in golang

Feb 10, 2024 pm 06:18 PM

我无法将标头添加到 golang 中的特定多部分

In this article, php editor Xinyi will introduce you to the solution on how to add specific multi-part headers in golang. Headers are key components in HTTP requests and responses, used to convey various metadata information. However, sometimes we may encounter an issue that specific multipart headers cannot be added to the request in golang. In what follows, we’ll provide a simple and effective solution to help you overcome this problem. let's start!

Question content

The api I use requires the content-type of the multipart form to be content-type: audio/wav but if you add a file part, _ := writer.createformfile("audio_file", "test2.wav") It makes the content type application/octet-stream

I have tried before: part.header.set("content-type", "audio/wav") But the header is not defined.

This is the curl request data minus the valid binary:

content-disposition: form-data; name="audio_file"; filename="test2.wav"
content-type: audio/wav
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Here is my request minus the rejected binary data:

Content-Disposition: form-data; name="audio_file"; filename="test2.wav"
Content-Type: application/octet-stream
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Solution

Call createpart directly instead of the createformfile convenience method. Set the content type in the header used to create the widget.

h := make(textproto.MIMEHeader)
h.Set("Content-Disposition",
    fmt.Sprintf(`form-data; name="%s"; filename="%s"`, "audio_file", "test2.wav"))
h.Set("Content-Type", "audio/wav")
part, err := writer.CreatePart(h)
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