I have an app I am working on that has to upload a file to a server for server side processing
Zach ᐧ On Wed, Jan 11, 2017 at 10:49 AM, Simon <[email protected]> wrote: > Hi all, > thought it might be worth updating this thread on my progress with S3, > which I have now solved by adding one small hack to the Filereader > <https://github.com/simonh1000/file-reader> library (github only because > of the native code). I have documented this at > https://simonh1000.github.io/2016/12/elm-s3-uploads/ > > Meanwhile, I have a new use to register. I was looking at MessagePack > <http://msgpack.org/> and noted that Elm is not included in the long list > of supported languages. I suspect that it currently could not be because of > the lack of ArrayBuffer support? > > Simon > > > On Wednesday, 24 August 2016 18:06:40 UTC+2, Erik Lott wrote: >> >> Our primary application allows photographers to upload hundreds/thousands >> of images for portfolio display. image delivery, etc. I guess you could say >> that our app is generally driven by image uploads. I would love to see this >> functionality provided by Elm, rather than having to use ports... >> >> On Thursday, July 28, 2016 at 5:17:51 PM UTC-4, Daniel Bachler wrote: >>> >>> I'd love to see support for the File and ArrayBuffer Apis, and maybe >>> TypedArrays/DataViews as well. IMHO they are an important piece of the Web >>> Platform that is still missing in Elm. >>> >>> Evan suggested collecting concrete use cases to guide the design. I >>> would like this thread to be the starting point of this effort. I would >>> like to ask anyone who would also like this feature or who has substantial >>> experience using either Api to add use cases or comment here so that we can >>> try to define the user story for both apis. From there, we could decide >>> what we would like to see supported and what, if anything, we don't need >>> for now and suggest Elm Apis. >>> >>> I have two stories from a side project of mine. It is a slideshow editor >>> that allows the user to select photos and audio files from the local >>> system, uploads them to a web service, let's the user arrange and >>> manipulate photos and music and then share the result with others. For >>> this, I have two immediate use cases plus some more ideas: >>> >>> *Upload local files as binary blob to AWS S3* >>> >>> In my current, (hacky) version, I use the FileReader api (via >>> simonH1000's filereader library) to read the content of a file into an >>> ArrayBuffer, (represented as Json.Value in Elm) then use a modified version >>> of elm-http to upload the content of the ArrayBuffer to an S3 storage >>> bucket. >>> >>> *Download mp3 files, decode them and play them back via the AudioApi* >>> >>> Currently I do this with my modified http library to download the mp3 >>> file into an arraybuffer, then pass the resulting arraybuffer through a >>> port to some native javascript that then uses the Audio Api to decode the >>> mp3 file into a playable audiobuffer. >>> >>> *Parsing or otherwise processing local text files. * >>> >>> For another project I would be interested in reading and parsing >>> Swagger/OpenAPI definition files and then providing a UI to compare rest >>> apis. Since the processing will be done on simple Strings, this would only >>> require FileReader support (specifically the readAsText method). This would >>> already work with the FileReader library as is (though that one is not >>> available on package.elm-lang.org because it contains native code and >>> is not whitelisted). >>> >>> *TypedArrays and DataViews* >>> >>> I haven't worked with these yet, but I can anticipate some cases that >>> would be interesting: >>> >>> *Parsing/manipulating of binary data via the ArrayBuffer api.* >>> >>> One case I personally would like to do with this, is to parse the Exif >>> header of the jpeg files the user loaded from the local file system. My >>> slideshow could then display metadata information without roundtripping to >>> the server. >>> >>> *Create geometry for WebGL in the form of Vertex Buffers* >>> >>> *Generating sound/music by writing raw audio samples* >>> >>> These could then be played back via the Web audio apis. >>> >>> >>> Please add your own ideas to this thread. Once we have compiled a list >>> of use cases, we can look at the JS Apis available under the Web Platform >>> for Files, ArrayBuffers, Typed Arrays etc. and think how these could be >>> exposed to Elm. >>> >> -- > You received this message because you are subscribed to the Google Groups > "Elm Discuss" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- Zach Kessin SquareTarget <http://squaretarget.rocks?utm_source=email-sig> Twitter: @zkessin <https://twitter.com/zkessin> Skype: zachkessin -- You received this message because you are subscribed to the Google Groups "Elm Discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
