topic Re: Custom Print Service in ArcGIS JavaScript Maps SDK Questions

Custom Print Service

AshleyPeters — Thu, 18 Feb 2016 17:18:33 GMT

All,

I have a project that is working beautifully, except for my print widget. At this point, it is the one thing that is keeping me from releasing my project.

I created a custom print service, following this tutorial: Tutorial: Publishing additional services for printing—Documentation | ArcGIS for Server . The folder holding my custom templates is registered and is validated.

Within my code, I can replace the call to my custom print service with someone else's and their service works, but mine doesn't. All settings are the same between the two. The one obvious difference is that his is http, vs. mine being https. When my code is set to look to my print service, the print widget when clicked goes from Print, to Printing, but I never get Printout.

Firefox's Developer Tools are not throwing any errors when I run the tool, so I'm not sure where to go next.

Has anyone else run into this? Or have any ideas on how to solve it?

Thanks in advance!

Ashley

Re: Custom Print Service

YueWu1 — Thu, 18 Feb 2016 18:22:38 GMT

Hi Ashley,

Is your print service is public facing or just localhost?

Why don't you try this print sample to see if you can print using your service:

Print templates with esri.request | ArcGIS API for JavaScript

Then using the developer tool from browser to compare the difference behavior from the sample print service versus yours.

Re: Custom Print Service

AshleyPeters — Thu, 18 Feb 2016 18:42:15 GMT

Hi Yue,

I tried the print sample and exchanged my custom print service for the service provided. My print service did not work.

Ashley

Re: Custom Print Service

AshleyPeters — Thu, 18 Feb 2016 18:56:11 GMT

Also, when I try to use my print service, I am receiving a CORS error, but I do not receive that error on my own projects. When I add in CORS to my config file, the print widget doesn't even try to run.

Re: Custom Print Service

YueWu1 — Thu, 18 Feb 2016 21:12:03 GMT

Would you please share with us about your print service url so that I can test with it?

Re: Custom Print Service

AshleyPeters — Thu, 18 Feb 2016 21:23:09 GMT

https://conservationgis.alabama.gov/adcnrweb/rest/services/DCNRExportWebMap

Re: Custom Print Service

YueWu1 — Sat, 11 Dec 2021 06:31:21 GMT

Hi Ashley,

I found the reason is because your print gp service is setup as Asynchronous

You can find in this parameter in your url

Execution Type: esriExecutionTypeAsynchronous

I am not really sure do you need asyn or not, but nevertheless, if you prefer to use asyn Execution, you need to add this line of code in print widget, based on the documentation: Print | API Reference | ArcGIS API for JavaScript (search "async" you will find it)

Therefore, in the print template sample, if you add your print service url you also need to add line 03:

app.printer = new Print({
            "map": app.map,
            "async": true,
            "templates": templates,

Hope this can help.

Roll Tide!

Re: Custom Print Service

AshleyPeters — Mon, 22 Feb 2016 15:15:46 GMT

Hi Yue,

I've been out of the office for a few days, I'm sorry I'm just getting back to you. I do have "async" set to true in the print option of my code. I'm looking into whether or not I need to define templates. This is a screenshot of my log file from last week. I've got to look into these, as this may be the overall issue:

Re: Custom Print Service

YueWu1 — Mon, 22 Feb 2016 18:26:40 GMT

Hi Ashley,

The easiest way to test with your GP Service is editing this sample in this sandbox. I remember last week I tested with your Print service with this sample and it works fine. And I think you do need define your template.

Re: Custom Print Service

AshleyPeters — Wed, 24 Feb 2016 20:19:58 GMT

Yue,

I've testing in the sandbox with my print service. It's registering my templates, but I still do not get a printout.

Re: Custom Print Service

YueWu1 — Sat, 11 Dec 2021 06:31:24 GMT

Hi Ashley,

Two thing you need to change from this sample: Print templates with esri.request | ArcGIS API for JavaScript

1. Enable CORS or add proxy:

        //esriConfig.defaults.io.proxyUrl = "http://yourproxy/proxy.ashx";
        esriConfig.defaults.io.corsEnabledServers.push("conservationgis.alabama.gov");

2. Like I mentioned, or you may already did it:

 app.printer = new Print({
            "map": app.map,
            "async": true,

And it should work.

Here is the screenshot that using your print service.

Re: Custom Print Service

AshleyPeters — Wed, 24 Feb 2016 21:55:38 GMT

I have a single machine setup. As soon as I enable CORS, I get errors galore that I wasn't getting. And my understanding has been I do not need a proxy since I have the single machine setup. Is that incorrect?

Re: Custom Print Service

YueWu1 — Wed, 24 Feb 2016 23:08:04 GMT

If your machine is same domain with your print service then you don't need to. The reason I need is because my domain is out of your print service domain.

Re: Custom Print Service

AshleyPeters — Thu, 25 Feb 2016 13:40:59 GMT

So what else do I need to try? I need to get this working. I'm still getting the same errors on my server logs like I posted above. And, if it makes a difference, the internal and external IP addresses on the server are different.

Re: Custom Print Service

YueWu1 — Thu, 25 Feb 2016 17:45:44 GMT

Hi Ashley,

Try to follow this documentation to setup a proxy Setting up a Proxy | Support Services Blog

If you still encounter any issues you can try to contact Esri Technical Support and we would definitely love to help you resolve this problem.

Re: Custom Print Service

AshleyPeters — Thu, 25 Feb 2016 18:48:46 GMT

Hi Yue,

I actually contacted Tech Support yesterday. We haven't been able to get this resolved yet, but I hope we can soon. I really need this to work!

Thanks for your help so far!

Ashley

Re: Custom Print Service

YueWu1 — Thu, 25 Feb 2016 19:38:34 GMT

It's my pleasure.

I wish I can help you in person and this should be fixed easily.

Feel free to share this information to the analyst that you work with and it will definitely helps.

Best Regards,

Re: Custom Print Service

AshleyPeters — Thu, 10 Mar 2016 15:45:18 GMT

I finally got this resolved this morning. I have recently undergone an upgrade to 10.3.1. My SOC account could not hit my FQDN (fully qualified domain name). Phillip, the Esri tech analyst, had me sign on to my server as the SOC account and try to hit my REST services. I was unable to do that. That narrowed it down to one of two options. In Phillip's words:

"Depending on your network configuration this could be a example of network hairpinning. "Because an origin endpoint and its router in a subnetwork may not recognize that a message is intended for a destination endpoint in the same subnetwork because it only knows its public IP address, the Internet Network Address Translation (NAT) server must be able to recognize the situation and hairpin the message back to the subnetwork so that it can reach its destination."

It could also be a result of permissions given to the local user on the server. If this is the case your IT could potentially change those permissions or set up a domain account to run the ArcGIS Server service. "

I forwarded his message on to my IT folks, and they made a change in the host file. Problem solved! Hopefully this will help someone in the future.