Hello guys!
I’m trying to build a workflow that get’s data from newsletters from Gmail, it must collect important data (such as starting and ending date, location, event title and description). With JSON module I can extract them (sometime I have multiple events in a single email): I want to save them in a database and both publish them in calendar.
Currently it should be working, but I would like to iterate that process in case I have multiple events. I think I need some iterators/aggregators, but I still miss how to use them. Can you please help me?
Welcome to the Make community!
Combining Bundles Using Aggregators
Every result (item/record) from trigger/iterator/list/search/match modules will output a bundle. This can result in multiple bundles, which then trigger multiple operations in future modules (one operation per bundle). To “combine” multiple bundles into a single variable, you’ll need to use an aggregator of some sort.
Aggregators are modules that accumulate multiple bundles into one single bundle. An example of a commonly-used aggregator module is the Array aggregator module. The next popular aggregator is the Text Aggregator which is very flexible and can apply to many use-cases like building of JSON, CSV, HTML.
You can find out more about the other types of aggregator modules here:
Mapping a Specific Structure Into a Complex Field
The Array Aggregator module is very powerful because it allows you to build a complex array of collections for a later module’s field to map multiple items (collections) to it.
This is done using the “Target structure type” field in an Array Aggregator module.
Here is an example:
As you can see, the “Map” toggle on complex fields are used when you have an array. You can easily build an array variable to map to a future module’s field, by using an Array Aggregator module and select the “Target Structure Type” as the future module’s field you have mapped the array into.
Example
Here is an example of how your scenario could look:
This is just an example. Your final solution may or may not look like this depending on your requirements.
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Investing some effort into the Make Academy will save you lots of time and frustration using Make.
