Question

I am trying to upload a file in my GAE app. How do I the upload of a file in Google App Engine using Go and using the r.FormValue()?

Answer 1

I managed to solve my problem by using the middle return param, “other”. These code below are inside the upload handler

blobs, other, err := blobstore.ParseUpload(r)

Then assign corresponding formkey

file := blobs["file"]
**name := other["name"]** //name is a form field
**description := other["description"]** //descriptionis a form field

And use it like this in my struct value assignment

newData := data{
  Name: **string(name[0])**,
  Description: **string(description[0])**,
  Image: string(file[0].BlobKey),          
}

datastore.Put(c, datastore.NewIncompleteKey(c, "data", nil), &newData )

Not 100% sure this is the right thing but this solves my problem and it is now uploading the image to blobstore and saving other data and blobkey to datastore.

Hope this could help others too.