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Posted to user@flink.apache.org by vino yang <ya...@gmail.com> on 2018/08/01 03:02:46 UTC

Re: Rest API calls

Hi yuvraj,

The documentation of Flink REST API is here :
https://ci.apache.org/projects/flink/flink-docs-release-1.5/monitoring/rest_api.html#monitoring-rest-api

Thanks, vino.

2018-08-01 3:29 GMT+08:00 yuvraj singh <19...@gmail.com>:

> Hi I have a use case where I need to call rest apis from a flink . I am
> not getting much context form internet , please help me on this .
>
> Thanks
>
>

Re: Rest API calls

Posted by Rong Rong <wa...@gmail.com>.

Hi Yuvraj,

Vino is right, having a customized function is probably the easiest at this
moment.

Alternatively, I think what you are looking for is very much similar to
side-input feature of data stream[2].

Thanks,
Rong

[2] FLIP-17:
https://cwiki.apache.org/confluence/display/FLINK/FLIP-17+Side+Inputs+for+DataStream+API

On Wed, Aug 1, 2018 at 5:10 AM vino yang <ya...@gmail.com> wrote:

> Hi yuvraj,
>
> Sorry, I didn't see it clearly. I think in many UDF contexts, such as
> MapFunction, ProcessFunction, etc., you can access the Rest API as a
> client.
> Also if you want to improve performance, maybe async I/O will help you[1].
>
> [1]:
> https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/stream/operators/asyncio.html
>
> Thanks, vino.
>
> 2018-08-01 11:55 GMT+08:00 yuvraj singh <19...@gmail.com>:
>
>> Hi vino , thanks for the information .
>> But I was looking for the use case where I need to call a web service on
>> the stream .
>>
>> Thanks
>> Yubraj Singh
>>
>> On Wed, Aug 1, 2018, 8:32 AM vino yang <ya...@gmail.com> wrote:
>>
>>> Hi yuvraj,
>>>
>>> The documentation of Flink REST API is here :
>>> https://ci.apache.org/projects/flink/flink-docs-release-1.5/monitoring/rest_api.html#monitoring-rest-api
>>>
>>> Thanks, vino.
>>>
>>> 2018-08-01 3:29 GMT+08:00 yuvraj singh <19...@gmail.com>:
>>>
>>>> Hi I have a use case where I need to call rest apis from a flink . I am
>>>> not getting much context form internet , please help me on this .
>>>>
>>>> Thanks
>>>>
>>>>
>>>
>

Re: Rest API calls

Posted by vino yang <ya...@gmail.com>.

Hi yuvraj,

Sorry, I didn't see it clearly. I think in many UDF contexts, such as
MapFunction, ProcessFunction, etc., you can access the Rest API as a
client.
Also if you want to improve performance, maybe async I/O will help you[1].

[1]:
https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/stream/operators/asyncio.html

Thanks, vino.

2018-08-01 11:55 GMT+08:00 yuvraj singh <19...@gmail.com>:

> Hi vino , thanks for the information .
> But I was looking for the use case where I need to call a web service on
> the stream .
>
> Thanks
> Yubraj Singh
>
> On Wed, Aug 1, 2018, 8:32 AM vino yang <ya...@gmail.com> wrote:
>
>> Hi yuvraj,
>>
>> The documentation of Flink REST API is here : https://ci.apache.org/
>> projects/flink/flink-docs-release-1.5/monitoring/rest_
>> api.html#monitoring-rest-api
>>
>> Thanks, vino.
>>
>> 2018-08-01 3:29 GMT+08:00 yuvraj singh <19...@gmail.com>:
>>
>>> Hi I have a use case where I need to call rest apis from a flink . I am
>>> not getting much context form internet , please help me on this .
>>>
>>> Thanks
>>>
>>>
>>

Re: Rest API calls

Posted by yuvraj singh <19...@gmail.com>.

Hi vino , thanks for the information .
But I was looking for the use case where I need to call a web service on
the stream .

Thanks
Yubraj Singh

On Wed, Aug 1, 2018, 8:32 AM vino yang <ya...@gmail.com> wrote:

> Hi yuvraj,
>
> The documentation of Flink REST API is here :
> https://ci.apache.org/projects/flink/flink-docs-release-1.5/monitoring/rest_api.html#monitoring-rest-api
>
> Thanks, vino.
>
> 2018-08-01 3:29 GMT+08:00 yuvraj singh <19...@gmail.com>:
>
>> Hi I have a use case where I need to call rest apis from a flink . I am
>> not getting much context form internet , please help me on this .
>>
>> Thanks
>>
>>
>