Add Data Save Functionality #14

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1. kylemath

   added

   enhancementNew feature or requestNew feature or request

   on Nov 30, 2019
2. korymath commented on Dec 2, 2019

   

   korymath

   on Dec 2, 2019

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   Here is the easy way to do it:
   https://github.com/urish/eeg-explorer/blob/master/src/app/recorder/recorder.component.ts#L41

   https://github.com/urish/eeg-explorer/blob/90d5b730a4331dcf40438959a23c7ece99551f04/src/app/recorder/recorder.component.ts#L41

   This requires the whole data set to be stored in the browser.

   The other option, and the one that might reduce latency, is to publish the data to a Pub/Sub service, or a server that is running to store the data asynchronously from the client code.

   Store to bigtable: https://cloud.google.com/bigtable/docs/samples-nodejs-hello
3. kylemath commented on Dec 3, 2019

   

   kylemath

   on Dec 3, 2019

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   question becomes, what to record,
   then the question becomes, let the user decide,
   so have a chart of raw data
   then a toggle for filter with input points for cutoffs
   they can record at any time and record what is currently being plotted through the pipes

   then we have spectra, that is probably a scroll down, but it is useful to watch the spectra and raw data coincidentally and view the changes as filters are introduced,

   then the spectra has options to modify the parameters of the fft, and whatever is being shown can be recorded

   Then we divide into 5 bins of frequency and show the bar graphs, those can be recorded

   lets start with the first one, raw data
4. korymath

   self-assigned this

   on Dec 5, 2019
5. korymath commented on Dec 5, 2019

   

   korymath

   on Dec 5, 2019

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   I will work on the minimum viable product of a client saving their data in the front end. We do not want to store THIER data on our servers, so we can keep it all client side for now.
6. korymath

   changed the title [-]Data recording options[/-] [+]Data Recording and Saving[/+] on Dec 6, 2019
7. korymath

   changed the title [-]Data Recording and Saving[/-] [+]Add Data Save Functionality[/+] on Dec 6, 2019
8. korymath commented on Dec 6, 2019

   

   korymath

   on Dec 6, 2019

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   Building a csv data array and then downloading with: https://www.npmjs.com/package/react-csv
9. korymath commented on Dec 12, 2019

   

   korymath

   on Dec 12, 2019

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   StreamSaver: https://www.npmjs.com/package/streamsaver

   window.onunload = () => {
     writableStream.abort()
     // also possible to call abort on the writer you got from `getWriter()`
     writer.abort()
   }
    
   window.onbeforeunload = evt => {
     if (!done) {
       evt.returnValue = `Are you sure you want to leave?`;
     }
   }
   
10. korymath commented on Dec 24, 2019

    

    korymath

    on Dec 24, 2019

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    This can be closed with the merging of #77
11. kylemath

    closed this as completedon Dec 24, 2019