Code Generators and Extensions for VanillaRTB framework in Node.js, Go, Java , PHP, Python.

Recommended build environment and dependencies:

Linux or MacOS, Go >= 1.9 , CMake >= 3.8, GCC >= 7.0 or Clang >= 4.0, npm >= 5.7.1

npm --version

Output:5.7.1

npm installation(Linux):

sudo apt-get remove nodejs ^node-* nodejs-*
sudo apt-get autoremove
sudo apt-get clean
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install nodejs

Then :

curl https://raw.githubusercontent.com/creationix/nvm/v0.33.2/install.sh | sh

After this, open a new terminal and check the npm version:

npm --version

npm installation(MacOS HomeBrew):

brew update
brew install node

Go 1.9 ( Linux )

$ sudo add-apt-repository ppa:gophers/archive
$ sudo apt-get update
$ sudo apt-get install golang-1.9-go
$ sudo ln -s -f /usr/lib/go-1.9/bin/go /usr/bin/go
$ sudo ln -s -f /usr/lib/go-1.9/bin/gofmt /usr/bin/gofmt

Go 1.9 ( MacOS )

brew update
brew install go

rm -rf $GOPATH/src/github.com/vanilla-rtb/
rm -rf $GOPATH/src/stubs
go get github.com/jessevdk/go-flags
go get -d github.com/vanilla-rtb/extensions
mv $GOPATH/src/github.com/vanilla-rtb/extensions/stubs $GOPATH/src/stubs
go install github.com/vanilla-rtb/extensions
go install stubs

Make sure you pass -d flag to go get command when installing vanilla-rtb/extensions it will clone our project without actually installing in the $GOPATH\pkg folder .

The main reason behind such installation is import "stubs" directive in our bidder_generator.go uses relative path allowing you to import your own stubs and generate your own targeting cache not just what we provide with our examples

git clone --recursive  https://github.com/vanilla-rtb/extensions 

s

cd extensions
go run  bidder_generator.go --output-dir . --input-template templates/matcher.tmpl -g matchers
go run  bidder_generator.go --output-dir . --input-template templates/biddergo.tmpl -g app -T ico -B APP

go run  bidder_generator.go --output-dir . --input-template templates/matcher.tmpl -g matchers
go run  ../bidder_generator.go --output-dir . --input-template ../templates/biddergo.tmpl -g app -T ico -B LIB

For more information HELP in generator itself

go run bidder_generator.go --help

Our generator is referencing import "stubs" without full path to github repo , it's treated as your local package where you will store all of your future stubs.

The code you place in the stubs package needs to register your stub classes it's done with TypeRegistry exported package variable. Just add more Objects to the registry and codegen will automatically regenerate all your stubs.

var TypeRegistry = []reflect.Type{
    reflect.ValueOf(Domain{}).Type(),
    reflect.ValueOf(ICOCampaign{}).Type(),
    reflect.ValueOf(Geo{}).Type(),
    reflect.ValueOf(GeoCampaign{}).Type(),
}

It also needs to group stubs types by targeting model as shown below , the order in array coresponds to order executed by bidder in real time

//agregate  targetings based on the bidder model the execution in the bidder will preserve as order of declaration
var Targetings = map[string][]reflect.Type{
    "ico": []reflect.Type{
        reflect.ValueOf(Domain{}).Type(),
        reflect.ValueOf(ICOCampaign{}).Type(),
    },
    "geo": []reflect.Type{
        reflect.ValueOf(Geo{}).Type(),
        reflect.ValueOf(GeoCampaign{}).Type(),
    },
}

The type passed to registry must be annotated with golang tags for ability to wire in-proc and shared memory correctly For types that allocate on the heap there needs to be a conversion cpp:"std::string" ipc:"shared_string"

The Domain struct tags implicetely tells generator that the lookup is done by single key domain name , the sorage structure generated for shared memory acess can be expressed as Map<string, Domain> where string type is a key and Domain type is a value. VanillaRTB relies on those structures when matching campaigns and it uses these set of implicitly chained structures where output from first becomes input for the next step in matching rule, if any matcher in the chain fails before it reaches the last matcher aka campaign-collector no bid is returned by vanilla-rtb stack. The terminal function selectingthe Ads is not included in the stubs it's implicit it comes as library by default accepting collection of Campaigns. When looking at "ico" or "geo" examples in both cases collection of ICOCampaign or GeoCampaign is automatically fed into terminal AdSelector which matches based on the campaign ids and size of ad.

type Domain struct {
    name      string `cpp:"std::string"  ipc:"shared_string" is_key:"yes"`
    domain_id uint32 `cpp:"uint32_t" ipc:"uint32_t"`
}

type ICOCampaign struct {
    domain_id   uint32 `cpp:"uint32_t" ipc:"uint32_t" is_key:"yes"`
    campaign_id uint32 `cpp:"uint32_t" ipc:"uint32_t"`
}

type Geo struct {
 city string `cpp:"std::string"  ipc:"shared_string" is_key:"yes"`
 country string `cpp:"std::string"  ipc:"shared_string" is_key:"yes"`
 geo_id uint32 `cpp:"uint32_t" ipc:"uint32_t" is_value:"yes"`
}

type GeoCampaign struct {
    geo_id      uint32 `cpp:"uint32_t" ipc:"uint32_t" is_key:"yes"`
    campaign_id uint32 `cpp:"uint32_t" ipc:"uint32_t" is_value:"yes"`
}

Currently we generate C++ bidder code based on vanilla-rtb library API and manually code other languages bindings. Ideally we should generate both the C++ layer and the bindings.

5. Experimental generator for vanilla-rtb stand alone C++ project

go run  bidder_generator.go --output-dir . --input-template templates/cmake.tmpl -g cmake

VIDEO: