Worked like a charm! Thank you for your quick response, Daryl and Mark.

The content of the downloaded file is stored in the file generated FlowFile
with a random filename, how would I rename the output file to actual
downloaded filename?

By the way, the ticket is a good enhancement.

Thanks,

Indus

On Wed, Sep 23, 2015 at 8:27 PM, Mark Payne <marka...@hotmail.com> wrote:

> Indus,
>
> As Daryl mentioned, InvokeHTTP will allow you to use the Expression
> Language to do an HTTP GET.
> It works a bit differently, though, because GetHTTP is a "Source
> Processor" whereas InvokeHTTP needs to
> be fed a FlowFile to do anything. So you can use GenerateFlowFile as a
> source and have it generate a
> 0 byte FlowFile (set the File Size property to "0 B"). Then just connect
> GenerateFlowFile to InvokeHTTP.
>
> Having said that, it is a bit awkward to have to use a GenerateFlowFile to
> trigger InvokeHTTP to run, so
> I went ahead and created a ticket [1] to allow GetHTTP to evaluate the
> Expression Language for the URL
> property. In the meantime, though, GenerateFlowFile -> InvokeHTTP should
> provide you with
> the capability you're looking for.
>
> Thanks
> -Mark
>
> [1] https://issues.apache.org/jira/browse/NIFI-993
>
> On Sep 23, 2015, at 9:14 PM, Daryl Teo <daryl....@listcorp.com> wrote:
>
> Indus - use InvokeHTTP
>
> Daryl
>
> On Thu, Sep 24, 2015 at 11:07 AM, indus well <indusw...@gmail.com> wrote:
>
>> Hello NiFi Experts:
>>
>> The GetHTTP processor works fine with static filename when getting files
>> from a website. However, I have a use case where I need to download a file
>> daily and the filename is the date of today, ie: 09222015.zip. Since the
>> URL property of the GetHTTP does not support expression language, I cannot
>> do something like http://example.com/${now():format('MMddyyyy')}.zip. Is
>> there a way I can specify the filename dynamically? Or using other
>> processor to make this work. Please advise.
>>
>> Thanks,
>>
>> Indus
>>
>
>
>
> --
> *Daryl Teo*
>
> Tech Lead
>
>
> <logo2.jpg>
>
> 122 Cremorne Street
> Richmond VIC 3121
> Australia
>
> *T   *+61 (3)8669 1821
> *M * +61 (0)432 413 752
>
> www.listcorp.com
>
> <stroke.png>
>
> This email (including any attachments) is confidential and may be
> privileged. It may be read, copied and used only by the intended recipient.
> If you have received it in error, please contact the sender immediately by
> return email. Please then delete both emails and do not disclose their
> contents to any person. We believe, but do not warrant, that this email and
> any attachments are virus free. You should take full responsibility for
> virus checking. Listcorp. reserves the right to monitor all email
> communications. If the content of this email is personal or unconnected
> with our business, we accept no liability or responsibility for it.
>
>
>

Reply via email to