How to use sync modifiers

Overview

Modifiers is a powerful tool that allows you to change the product data after the sync without the need to get a developer to make changes in the data-feed. As it is currently an exprerimental tool, only the internal clerk staff can use it for now. So please contact support if you need this functionality.

It supports the following commands.

All commands also supports the if clause. The if clause can be added to anything with a statement, and the command will only be run on the attribute if the statement evaluates to true.

Commands

Here are each of the commands with an example, with variables as needed. All commands take a type that specifies what command to run, and an attribute that indicates what attribute to run the command on.

Set

Takes a new_value that shows what value to set the attribute to, can be used both as a new attribute, or on top of an existing one to replace it.

{
  "type":"set",
  "attribute": ATTRIBUTE,
  "new_value": NEW_VALUE
}

Example In this example I will overwrite the ‘shown’ attribute if the product is out of stock.

{
    "type": "set",
    "attribute": "shown",
    "new_value": "false",
    "if": "stock < 1"
}

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "stock" : 0,
  "shown" : true,
  "price": 200.00,
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "stock" : 0,
  "shown" : false,
  "price": 200.00,
}

Delete

Deletes the given attribute from all products.

{
  "type":"delete",
  "attribute": ATTRIBUTE
}

Example Here I will remove the shown attribute for all products.

{
  "type":"delete",
  "attribute": "shown"
}

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "shown": true,
  "price": 200.00,
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "price": 200.00,
}

Update

If you are non-technical and you are reading this. Strap in because we are using regex with the python library.

Update takes the attribute regexp that is a regex expression that matches on some parts of the attribute and replaces each matched group with the content of replace_by. Here’s a helpfull tool for you to craft your regex.

An example regex could be [/]+ with a replace_by of ’/’, this would take all places in the attribute that has multiple /’s in a row and replace them with singular /. So https://test//tests would become https:/test/tests.

{
  "type":"update",
  "attribute": "ATTRIBUTE",
  "regexp": "MATCH_REGEX",
  "replace_by": "STRING",
}

Example Here I will remove a part of the url, with a regex that maches the last part of the url, making sure to escape the /.

{
  "type":"update",
  "attribute": "url",
  "regexp": "\/\/__example",
  "replace_by": ""
}

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "url": "https://example.domain/product/153//__example",
  "price": 200.00
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "url": "https://example.domain/product/153",
  "price": 200.00
}

Type

Allow for changing of types in an attribute. So if the data is a number and you need it to be a string, you can use this to typecast it.

{
  "type":"type",
  "attribute": "ATTRIBUTE",
  "new_type": any of ["string", "int", "float", "boolean"]
}

Example Here we are changing the type of the price, from a string into a float.

{
  "type":"type",
  "attribute": "price",
  "new_type": "float"
}

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "price": "200",
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "price": 200.00,
}

Split

Allows for splitting a string with commas, into a list of strings.

{
  "type":"split",
  "attribute": "ATTRIBUTE"
}

Example Here we are splitting an attribute with categories.

{
  "type":"split",
  "attribute": "string_categories"
}

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "string_categories": "lineman, chute"
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "string_categories":["lineman","chute"]
}

Format

Allows for creation of a formatted string.

This could be making a new value valled {price} {currency}.

If the needed data is not an attribute on the product, you can also add the extra attribute to the command.

{
  "type":"format",
  "attribute": ATTRIBUTE,
  "new_value": VALUE_TO_SET,
  ... : ... #(can include more attributes that are needed for formating)
}

Example Here I will add a currency to the end of the price, first I’ll need to change the type to a string, then inject the formatted syntax, and then I’ll get it to format. The update command adds the value in replace_by to the end of price.

[
{
  "type":"format",
  "attribute": "price_with_currency",
  "new_value": "{price} {currency}"
}
]

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "currency": "DKK",
  "price": 200.00,
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "currency": "DKK",
  "price": 200.00,
  "price_with_currency": "200.00 DKK"
}

Expression

Evaluates an expression that is in the given attribute. For instance, if there’s the string ‘price * 0.8’ inside an attribute and we run expression on it, the result will be 80% of what is in the price attribute.

{
  "type":"expression",
  "new_value": NEW_VALUE,
  "attribute": ATTRIBUTE
}

Example Evaluates an expression that is in the given attribute. For instance, if there’s the string ‘price * 0.8’ inside an attribute and we run expression on it, the result will be 80% of what is in the price attribute.

[
    {
        "type": "expression",
        "attribute": "price_alt",
        "new_value": "price * 0.65"
    }
]

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "price": 200.00,
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "price": 200.00,
  "price_alt": "130.0",
}

If

If if is added to any of the above commands with a statement, the command will only run on attributes where the given statement evaluates to true.

Available operators are:

When comparing an attribute to a specific value, the syntax is:

{
  "type":"delete"
  "attribute": ATTRIBUTE,
  "if":"ATTRIBUTE OPERATOR VALUE"
}

When evaluating a substring in a string or an element in a list the syntax is:

{
  "type":"delete"
  "attribute": ATTRIBUTE,
  "if":"VALUE in ATTRIBUTE"
}

Example Comparing to a specific value

{
    "type": "set",
    "attribute": "shown",
    "new_value": "false",
    "if": "stock < 1"
}

Example Checking a substring

{
    "type": "set",
    "attribute": "shown",
    "new_value": "false",
    "if": "'withdrawn' in name"
}

if statements can be also grouped using ‘and’/‘or’ in statements:

{
    "type": "set",
    "attribute": "shown",
    "new_value": "false",
    "if": "(stock < 1 and 'withdrawn' in name) or brand = 'Nike'"
}

Multi modification example

Here’s an example of multiple modifications chained together. Here I’m making a new attribute called price_alt for a specific product. It takes both the price and currency and make a new field with them.

[{
  "type":"set",
  "attribute":"price_alt",
  "new_value":"{price}{currency}",
  "if":"id == 153"
},{
  "type":"update",
  "attribute":"price_alt",
  "regexp":"o",
  "replace_by":"i",
  "if":"id == 153"
},{
  "type":"format",
  "attribute":"price_alt",
  "currency":"DKK",
  "if":"id == 153"
}]

This would make a new field called price_alt with the price and DKK at the end.

Before

{
  "id": 153,
  "name": "Lineman Chute",
  "price": 200.00,
}

After

{
  "id": 153,
  "name": "Lineman Chute",
  "price": 200.00,
  "price_alt": "200.00DKK"
}