Create Creative Template

post https://api.kevel.co/v2/creative-templates

Why Create a Creative Template?

When you want to create multiple creatives for your network, a creative template is a quick and easy way for you to create a standard format and style for all of your creatives while maintaining a consistent "look and feel"

This creates a new creative template for your network. The body of the request is a JSON object with the below fields. Do not specify an Id when creating a template. An Id will be assigned and returned with the response.

❗️
Warning
All string keys and values are case sensitive. For example Name is accepted but name is not, and the value String is accepted but string is not.

API Syntax

When using the Create Creative Template API endpoint, it is important to understand the syntax required to make the request. Because the Kevel API is a RESTful API, there is a specific request format that must be followed to ensure the endpoint can process the request. The format is:

POST [https://api.kevel.co/v2/creative-templates

Where:

POST - the type of API request being made.
https://api.kevel.co - the URL for the request.
v2 - the API version.
creative-templates - the API endpoint being called.

Object Fields

The table below lists the various fields you can include in your POST request when creating a new creative template.

The Fields of a creative template set which fields a UI user should enter for a creative. Each Field has its own object:

Key	Type
`Name` (string)	Required. The name of the field. Must be 255 characters or less. Example: "Caption"
`Variable` (string)	Required. The macro name of the field to be used in the `Contents` and/or accessed via a Decision API response. The macro name must begin with "ct". Example: "ctCaption"
`Type` (string)	Required. The data type of the field. See the table below. Example: "String"
`Required` (boolean)	If true, the field will be validated as required when the creative is saved. A required field cannot also be `Hidden`. Defaults to `false`
`Description` (string)	A description of the field for the UI. Example: "This is the caption for the ad."
`Hidden` (string)	If true, sets whether the field is hidden in the UI. Defaults to `false`.
`Default` (string (if `Type` is string) or array (if `Type` is array))	Required only if `Hidden` is true, otherwise not allowed. It sets a default value for the field. Example: "a" (if string) ["a" "b" "c"] (if array)
`AdQuery` (boolean)	If true, the field can be queried via the AdQuery feature.
`MaxBytes` (integer)	The size limit, in bytes, of a file uploaded for this field. Cannot exceed 2 MB (2097152 bytes), and will default to 2 MB if omitted. `MaxBytes` is only evaluated when the field `Type` is `File`.

🚧
Caution
You cannot provide a Default if a Field is not Hidden.
If a creative API request sets a value for a Hidden field that uses a Default, the creative will be saved with that overridden value. Otherwise, the value of the field will be the Default.

📘
Note
There is a maximum of 100 fields per creative template.

Field Types

The table below lists the different types of fields that may be used as part of the POST API call when creating a new creative template.

Value	Description	Example
`String`	A string. Max length of `String` values is 20,000 characters	"This is some text"
`File`	A file uploaded directly via the Kevel UI or API. The file name itself uses the Variable name `{{ctImage}}`.	"http://static.adzerk.net/ad.gif"
`ExternalFile`	An external URL of an image	"http://domain.com/ad.gif"
`Array`	An array of strings. For example, a list of tracking pixels to be served with the ad	["http://domain.com/pixel1.gif","http://domain2.com/pixel2.gif"]
`Number`	A float	`0.5` `1744819`
`Object`	An object. Max size of `Object` values is 1 KB	`{ "SKU": "ZG011AQA", "Name": "Coca-Cola with Coffee Dark Blend - 12 fl oz", "AdvertiserId": 1, "image": "https://example.s3.amazonaws.com/Coca+Cola+with+Coffee.jpg", "price": "2.39", "description": "Great Coca-Cola taste infused with Brazilian coffee in Coca-Cola with Coffee Dark Blend." }`

If your template creative requires uploading multiple images, you will need a file Field for uploading the image and a string Field for the image's path. The sum of all files uploaded to a single Creative cannot exceed 10 MB—for example, 5 file fields each with a 2 MB image. See the example Fields below:

{
        "Field": {
          "Name": "Image1 Full URL",
          "Required": false,
          "Variable": "ctImage1",
          "Type": "String",
          "Hidden": true,
          "Default": "{{contentUrl}}/{{ctImage1}}"
        }
      },
      {
        "Field": {
          "Name": "Image2 Full URL",
          "Required": false,
          "Variable": "ctImage2",
          "Type": "String",
          "Hidden": true,
          "Default": "{{contentUrl}}/{{ctImage2}}"
        }
      },
      {
        "Field": {
          "Name": "Image1",
          "Required": true,
          "Variable": "ctBaseImage1",
          "Type": "File"
        }
      },
      {
        "Field": {
          "Name": "Image2",
          "Required": true,
          "Variable": "ctBaseImage2",
          "Type": "File"
        }
      }

Contents Object

A creative template can have 0 or more Contents that determine how the data set in the Fields should be outputted into the creative.

Each Contents field has a Type that corresponds to the data type ados.js , which should be used to render the creative, and the Body of the Content will be written to contents of the creative.

📘
Note
There is a maximum of 10KB (or 10000 characters) of Contents data per template.

Key	Type
`Type` (string)	Required. The data type ados.js should use to render the creative. Ex: "HTML"
`Body` (string)	The data that should be written to the body of the creative. Max 10000 characters. Can use macros. Ex: " Check out my cool caption: {{ctCaption}} "

Content Types

Value	Description	Example(s)
`HTML`	If served via ados.js, executes the HTML on a page. Can also use macros for displaying uploaded images, etc. This does not wrap the data in any tags, so it can also be used for non-HTML data types such as XML or JSON.	` This is the name: {{ctName}} {{contentUrl}}/{{ctImage}} {"foo":"bar"} bar`
`JavaScript`	If served via ados.js, executes JavaScript code in a `<script>` tag. You can define new functions, integrate with code currently running on the page, etc.	No example available
`JavaScriptExternal`	If served via ados.js, executes an externally hosted JavaScript file, written into `<script src="...">` tags. Use the full path to the file.	`http://domain.com/script.js`
`CSS`	If served via ados.js, adds CSS into a page's stylesheet.	`#azk12345 { width: auto; } # azk{{placement.div.id}} { width: auto; }`
`Raw`	If served via ados.js, wraps the data in a friendly Kevel iframe. If served via the Decision API, can be used for any data type.	`{{contentUrl}}/{{ctImage}} {"JSON":true} `

🚧
Caution
Since Decision API responses do not render creatives on a page, the value of a Type will instead be rendered as the type in response, and the Body as body.