That is what i was told too but it seems if the proxy is configured right you have a web map and web app 'not shared' and still have it appear. After talking to the SDK people for a while yesterday, they concluded I could not use the proxy with a webapp builder app from AGOL. Yet as we see there are help pages for AGOL WAB that say use of a proxy is possible. After trial and error by myself, here is what I think works. I say 'think' because I have so many test maps and apps it is hard to keep them all straight!
My steps are as follows- using a web map that is not shared and a web app that is not shared (created with WAB on AGOL)
1. after cresting the web app, I downloaded that code and saved it to my web server to host the app there. The app now has a URL from my server nistead of having to use the AGOL URL.
2. Create an AGOL content item using the URL from my hosted app. created as a web mapping app, with app type = browser. I then registered it to get the appID
3. I added the appID to the config.json from the downloaded app. I had to change the text encoding to make it look nicer in notepad++
4. I added the proxy code at the end of the web app. I dont enough about javascript to know where you can/cannot add the code, but I do know you have to be mindful of the , and } and ] that each of the code elements use. So my copied code here will show how I added it after the last item in the original config.json
,"httpProxy": {
"useProxy": true,
"url": "", *** i did not need to add anything here although i have tried the proxy URL (below) as well as http://www.arcgis.com/sharing/rest, simply because that was an example i was given by support at some point
"alwaysUseProxy": false,
"rules": [{
"urlPrefix": "http://www.arcgis.com",
"proxyUrl": "http://mysite.com/dotnet/proxy.ashx"
}]
}}}}}}
I then go to my custom URL and am able to see the map, no log in required! I should mention that this is with map services that are secure, yet have the credentials saved. If I use the regular REST endpoint for my services, I still get a log in screen. So I would recommend saving credentials w/secure services (as an AGOL item) as not sharing the web map still requires credentials for map content and does not seem to be handled by the proxy (unless you put in the reference to your services in your proxy.config)
Anyway, I hope this helps someone else. After being told by support that this is, and then is not possible, I wound up figuring it out on my own. I really wish there was consistency in what support analysts told us. To do my job, I need to know how to use all products to produce a end result-- a web app that uses services, Server, MXDs, AGOL content, etc-- I need someone who can tell me how it work it all together. (OK rant over.... )
