I am getting a photo from my server. I know that the server send a blob
, and that the blob is correct . (server show the bytes).
On client i try to get that blob
:
function createFiles(url){
fetch('https://....jpg', {
method: 'POST',
headers: { Accept: 'application/json'}
})
.then(response => response.body)
.then(body => {
console.log(body); //** print a streamable object
const reader = body.getReader();
return new ReadableStream({
start(controller) {
return pump();
function pump() {
return reader.read().then(({ done, value }) => {
// When no more data needs to be consumed, close the stream
if (done) {
controller.close();
return;
}
// Enqueue the next data chunk into our target stream
controller.enqueue(value);
return pump();
});
}
}
})
})
.then(stream => new Response(stream))
.then(response => response.blob())
.then(blob => console.log(blob)) // ** print an empty blob size of 2 .
.catch(err => console.error(err));
}
If i print the body
right away i see an object which is ReadableStream
. (locked:false)
When i print the blob
at the end, i get an empty blob
which is of type = ""
, and size
= 2
.
But it suppose to be a photo.
How can i get this blob from the fetch
?
The server responses is a ReadableStream already.
you can try this.
fetch(url) // and you know it is a file you.then(response => response.blob()) // this will give you the blob you wanted.then(blob => console.log(blob.size)).catch(err => {console.log(err})
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