[英]Upload file to Django with Javascript
I have simple fetch function and I want to upload an base64 image. 我有简单的提取功能,我想上传base64图像。 The function is as follows: 功能如下:
function upload_to_server(canvasData){
console.log(canvasData); // that is data:image/png;base64,iVBORw0KGgoAAAANSUh.......
return fetch(api_url, {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: {photo: canvasData}
}).then(function (value) {
if(value.ok){
return value.json().then(function (response) {
debugger;
})
}
}).catch(function (reason) {
debugger;
})
}
And I have simple django view: 我有简单的Django视图:
def upload_image(request):
print(request.POST)
pdb.set_trace()
It goes successful to that view when function upload_to_server
gets called, but request.POST
is empty. 当调用函数upload_to_server
时,该视图成功执行,但是request.POST
为空。 It shouldn't be empty, it should have key photo
with that base64 value. 它不能为空,它应该具有具有该base64值的关键photo
。
Any idea what I do wrong? 知道我做错了什么吗?
If someone else has the same problem. 如果别人有同样的问题。 I solved it as follows. 我如下解决。
I changed the body of fetch request to: 我将提取请求的主体更改为:
body: JSON.stringify({photo: canvasData})
and I changed django
view, because data is in request.body
and not in request.POST
并且我更改了django
视图,因为数据在request.body
,而不在request.POST
import json
def upload_image(request):
body = json.loads(request.body)
photo = body['photo']
// Rest of the code
EXTRA 额外
The photo is base64 encoded but I needed it as media file. 照片是base64编码的,但我需要将其作为媒体文件。 I converted it to media file and saved it to database as follows: 我将其转换为媒体文件并将其保存到数据库,如下所示:
def upload_image(request):
body = json.loads(request.body)
photo = body['photo']
img_format, img_str = photo.split(';base64,')
ext = img_format.split('/')[-1]
data = ContentFile(base64.b64decode(img_str), name='temp.' + ext) # You can save this as file instance.
try:
n_file = Files()
n_file.file = data
n_file.save()
return JsonResponse({'status': 'success'})
except Exception as err:
return JsonResponse({'status': 'failed'})
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