Prebid : Programmatic Advertising

@bleen, Was hoping to get your thoughts on this.

I have to move forward with this either way so I'll probably just build it into the DFP module (7.x-2.x) and provide a patch here.

I did come across https://github.com/heshanlk/prebidjs so maybe I'll reach out and see if this plays well with DFP, namely this branch.

So I went ahead and added a wrapper for prebid when the ads are rendered. It assumes if the pbjs library is installed then we should use it. I really wanted to create a module that I could contrib back but after having to deal with some of the Bidder Adapters...cough...ix - wtf?? there is apparently no standard on params. I did create a custom module to handle the logic for each of the "bidders" but it's one of those you just slap together to make it work. I decided to create a custom ctools plugin that allows a dev to create a plugin for each of the bidders that will handle setting all the params necessary for each of the slots. Some bidder adapters use a single set of params for each ad and then some change the value of every param. It's freakin' nuts!!!

Anyway, here's a patch that takes care of what needs to happen on DFP's end to allow "easy" integration if someone needs to tackle it.

We were originally loading dfp_googletag.js as a JS_LIBRARY but should probably just be JS_DEFAULT. This makes it easier for other modules to inject their js before, such as prebid. I'm actively using this configuration and it works.

I've made some other modifications to dfp_googletag_cmd.js and cleaned it up a bit. I've re-rolled the other patches into this patch. This should be the only patch needed.

Found a bug so re-rolling the patch with a fix.

TESTING:

This is a "test" patch that includes a submodule for Prebid.

I'm fighting getting the prebid requests to work every time with lazy loading the ads so removing the lazy loading scroll for now to get some feedback from Ad ops on a live staging site to confirm that are seeing the bids placed properly. I can then go back in and work this back into the original dfp_googltag.cmd.js file and the prebid-request.js file.

I stripped out all of the functionality that sets the "page level settings" and AdOps wasn't seeing the correct parameters. This patch adds most of those back it but leaves out those that could cause issues with Prebid for now. Once again, this patch is a modified version of the dfp_googletag.cmd.js file and an additional sub-module (prebid).

This patch is a re-roll of the patch in #10. Updating the version of the prebid.js library to "v1.17.0-pre". This is what we are testing on.

Adding some configuration to prebid via pbjs.setConfig(). The UserSync config might not apply to everyone so I need to find a better way to add config. Possibly a hook that allows modules to add it to the prebid settings array.

This was necessary to continue testing this setup in a production environment.

Once again...this is a patch we are using to get a working setup for Prebid. Once we get a baseline using this mangled patch I will begin to work backwards ensuring that I add the lazy load functionality back in.

Modifying the configuration added in the last patch for pbjs.setConfig() and adding the slots back to the global googletag.slots object.

Here's a fully working patch. This is currently being tested on a Live production site that can get between 2-3 million users during peak time!!!

• This provides a new sub-module -- prebid.
• This module is responsible for providing a plugin system that allows other modules to define bidders and any custom parameters that are required. While there is room for some clean-up and better documentation, this implementation seemed the only way for developers to customize each bidder. Take a look at the documentation and you'll see just how different each bidder can be.
• DFP: dfp_googletag.cmd.js
• This was modified as well to leverage the logic provided by the prebid module, or rather the prebid.dfp.js methods.
• This only comes into play if the prebid module is enabled.
• Lazy Loading
• Lazy loading works! This was a bit of trial and error to get this working.

@bleen, Once I get full sign off that this is solid maybe I can take what I've learned in this implementation and port this to our D8 version as well. If you're interested...

Got some feedback from OAO and it appears there are some issues with some of the ads being lazy loaded. Looking into this issue and will report back with a re-rolled patch to fix this.

Updated patch that should fix the issues with lazy loading ads and prebid.

Re-rolling the patch:

Fixed a few bugs, added more comments, etc.

Added three drush commands for the prebid module:
1. 'drush prebid-clone 1.23.0' => 'Clone the Prebid.js library from Github at tag 1.23.0'
2. 'drush prebid-build ixBidAdapter,openxBidAdapter,rubiconBidAdapter' => 'Build a bundle with these bid adapters.'
3. drush prebid-add-library' => 'Move the generated prebid.js file to libraries.'

Full patch included

Are you using the 7.x-2.x-dev version of the module? This patch only applies to this branch

@jamaral86

Thanks will you please open up a new issue and include your patch there.

This has been tested on a Production site for the last 4 months. Going to call this RTBC