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Posted to user@arrow.apache.org by DC <da...@protonmail.com> on 2021/07/29 20:32:18 UTC

[Javascript] Flight support

Hello,

I'm not a JS pro by any stretch but I was able successfully build the JS modules from the proto file and call a Python Flight Server implementation that I put together (which works great). Working with the JS client I can retrieve a Flight and I get back a JS Readable object, but I'm not sure how to deserialize that into the RecordBatches that were sent. Any pointers/help would be much appreciated. Thank you.

-D

Re: [Javascript] Flight support

Posted by DC <da...@protonmail.com>.

Thanks for the link John. Yes, a real bummer. I'm trying to do something similar.

Regards,
-D

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, August 10th, 2021 at 1:03 PM, John E. Conlon <jc...@verticon.com> wrote:

> Hello David,
>
> Look over this jira: https://issues.apache.org/jira/browse/ARROW-13515 which is one I opened to ask a similiar JS Arrow Flight question.
>
> The answer was no - ArrowFlight is not now implemented in the Arrow JS package :-(
>
> cheers,
> John
>
> On 8/10/21 12:14 AM, Micah Kornfield wrote:
>
>> Hi David,
>> I'm not sure how many JS contributors are monitoring the user@ list. You might try sending this to dev@ to get more visibility. I didn't think much work had gone into supporting flight in JS but I could be wrong.
>>
>> Cheers,
>> Micah
>>
>> On Thu, Jul 29, 2021 at 1:32 PM DC <da...@protonmail.com> wrote:
>>
>>> Hello,
>>>
>>> I'm not a JS pro by any stretch but I was able successfully build the JS modules from the proto file and call a Python Flight Server implementation that I put together (which works great). Working with the JS client I can retrieve a Flight and I get back a JS Readable object, but I'm not sure how to deserialize that into the RecordBatches that were sent. Any pointers/help would be much appreciated. Thank you.
>>>
>>> -D

Re: [Javascript] Flight support

Posted by "John E. Conlon" <jc...@verticon.com>.

Hello David,

Look over this jira: https://issues.apache.org/jira/browse/ARROW-13515 
which is one I opened to ask a similiar JS Arrow Flight question.

The answer was no - ArrowFlight is not now implemented in the Arrow JS 
package :-(

cheers,
John


On 8/10/21 12:14 AM, Micah Kornfield wrote:
> Hi David,
> I'm not sure how many JS contributors are monitoring the user@ list.  
> You might try sending this to dev@ to get more visibility.  I didn't 
> think much work had gone into supporting flight in JS but I could be 
> wrong.
>
> Cheers,
> Micah
>
> On Thu, Jul 29, 2021 at 1:32 PM DC <david.car.dev@protonmail.com 
> <ma...@protonmail.com>> wrote:
>
>     Hello,
>
>     I'm not a JS pro by any stretch but I was able successfully build
>     the JS modules from the proto file and call a Python Flight Server
>     implementation that I put together (which works great).  Working
>     with the JS client I can retrieve a Flight and I get back a JS
>     Readable object, but I'm not sure how to deserialize that into the
>     RecordBatches that were sent.  Any pointers/help would be much
>     appreciated.  Thank you.
>
>     -D
>

Re: [Javascript] Flight support

Posted by DC <da...@protonmail.com>.

Thanks Micah. Will do.

In the meantime I've been able to figure out the different pieces of the FlightData stream by studying the C++ and Python implementations. Think I have most of the JS pieces to clobber together an implementation, but it would be great if there is something in the works. I'll head over to the dev list.

Best,
-D

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, August 10th, 2021 at 12:14 AM, Micah Kornfield <em...@gmail.com> wrote:

> Hi David,
> I'm not sure how many JS contributors are monitoring the user@ list. You might try sending this to dev@ to get more visibility. I didn't think much work had gone into supporting flight in JS but I could be wrong.
>
> Cheers,
> Micah
>
> On Thu, Jul 29, 2021 at 1:32 PM DC <da...@protonmail.com> wrote:
>
>> Hello,
>>
>> I'm not a JS pro by any stretch but I was able successfully build the JS modules from the proto file and call a Python Flight Server implementation that I put together (which works great). Working with the JS client I can retrieve a Flight and I get back a JS Readable object, but I'm not sure how to deserialize that into the RecordBatches that were sent. Any pointers/help would be much appreciated. Thank you.
>>
>> -D

Re: [Javascript] Flight support

Posted by Micah Kornfield <em...@gmail.com>.

Hi David,
I'm not sure how many JS contributors are monitoring the user@ list.  You
might try sending this to dev@ to get more visibility.  I didn't think much
work had gone into supporting flight in JS but I could be wrong.

Cheers,
Micah

On Thu, Jul 29, 2021 at 1:32 PM DC <da...@protonmail.com> wrote:

> Hello,
>
> I'm not a JS pro by any stretch but I was able successfully build the JS
> modules from the proto file and call a Python Flight Server implementation
> that I put together (which works great).  Working with the JS client I can
> retrieve a Flight and I get back a JS Readable object, but I'm not sure how
> to deserialize that into the RecordBatches that were sent.  Any
> pointers/help would be much appreciated.  Thank you.
>
> -D
>