is there any possible way to convert base64 image, which I receive in the JSON response body to an image inside postman?
The JSON response with the base64 that I Receive
Related
I'm using fetch to retrieve a URL. This is in code that is acting as a proxy and if it gets a response with content-encoding: gzip, I want to get the raw data so I can send it back to the consumer without decoding it.
But I see no way to do this. Response.blob, Response.arrayBuffer, Response.body.getReader(), .... these all seem to decode the content.
So, for example, in my test case, I end up with a 15K array of bytes instead of the actual response body which was only 4k.
Is there a way to get the raw contents of the response without it being decoded?
The browser automatically decodes compressed, gzip-encoded HTTP responses in its low-level networking layer before surfacing response data to the programatic Javascript layer. Given that the compressed bytes are already transmitted over the network and available in users' browsers, that data has already been "sent to the customer".
The Compression Streams API can performantly create a Gzip-encoded, ArrayBuffer, Blob, etc:
const [ab, abGzip] = await Promise.all((await fetch(url)).body.tee().map(
(stream, i) => new Response(i === 0
? stream
: stream.pipeThrough(new CompressionStream('gzip'))
).arrayBuffer()
))
Full example
https://batman.dev/static/74634392/
A gzip-encoded SVG image is provided to users as a downloadable file link. The original SVG image is retrived using fetch() from a gzip-encoded response.
I'm using axios server side with Nuxt.js and I console.log(data) immediately after app.$axios.get('...') and all of the urls in json response are converted to absoulte urls. For example the url in the original json is like /storage/products/img.jpg but in the console.log we get https://example.com/storage/products/img.jpg
I have an ajax response receiving as Content-Encoding as gzip.
I would like to convert it into base64 encoded string.
In firefox/firebug Net tab I can open response and see in base64 encoded text.
As you can see below, firebug can convert response into base64 string.
I can save this file as abc.zip and unzip successfully.
How can I achieve it in JavaScript? (Converting ajax response into base64 string)
You need to decompress the gzip-encoded string first to get the string in uncompressed form, then you can base64 encode the uncompressed string.
See JavaScript implementation of Gzip for info on how to decompress gzip-encoded strings.
I have encoded all the images in my css to base64 encoded data to reduce the number of http requests in the website. However, it appears that there is still an http request for the data encoded images as you can see below.
I tried checking for a solution on the web but everywhere it says that there should be no http request for images which are encoded to base64. What am I doing wrong ?
It is not another request however it will show up in your assets.
I am able to successfully retrieve metadata using the Dropbox API using the following URL:
https://api.dropbox.com/1/metadata/dropbox/mse
When I try to retrieve a thumbnail for a listed asset, I get a 401:
https://api-content.dropbox.com/1/thumbnails/dropbox/mse/modem_status.png?size=l
In both cases I am providing the access token in the header:
Authorization: Bearer 4JSL1tGWoVEAAAAAAAAAAUxNYpLbiYw-D8l3vqTKRKNBuGnezhps8j.....
I can't see what is missing here.
It turns out that an image is being returned - I was using POSTMAN to test the url and two urls show up in the log - the first returns a 200 with an image buffer containing JPEG data, and a subsequent url that fails with a 401. (the second GET does not contain the authorization header). However, I am at a loss as to how to make use of JPEG data returned from an XHR request - how am I supposed to create an <img> element this way? Isn't there something equivalent to /media which returns a public url that is valid for 4 hours?