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Does the Module Require You to Map File Data?
Did you forget to download the file using the fileās link/URL? If itās not downloaded to the scenario, the next module āConvert a Fileā canāt access the file binary data (contents).
To do this, you can use the HTTP āGet a Fileā module with the file URL that you need to download. Your file has to be publicly accessible on the internet (doesnāt require authentication).
For more information, see the HTTP page in the Make Help Centre, which covers the following:
- Overview of the HTTP modules
- Make a request
- Make a Basic Auth request
- Make an API key Auth request
- Make an OAuth 2.0 request
- Make a client certificate authentication request
- Get a file
- Resolve a target URL
- Retrieve Headers
- How to generate JSON Web Tokens (JWT)
More Than One File?
If you have an Array of multiple file URLs, you can use an Iterator module, and map the resulting bundle value/URL to the āGet a fileā module.
To download multiple files before proceeding to the next module, you can use an Array Aggregator.
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 ācombineā multiple bundles into a single variable, youāll 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:
Question: Which is the best aggregator do you think youāll need for your use-case?
Mapping a Specific Structure Into a Complex Field
If you have an array of collections, in programming terms, this is called an array of objects, or an array with non-primitive data types (ācomplexā).
The Array Aggregator module is very powerful because it allows you to build a new complex array of collections that matches a later moduleās field to map multiple items (collections) to it. Such fields initially would allow you to manually add items, but you can toggle the āMapā switch to the āonā state and map a whole array into a single field.
This is done by selecting the āTarget structure typeā in an Array Aggregator module.
As you can see from the above example, the āMapā toggle on complex fields are used when you have an array variable (like from an array aggregator). Other combinations of modules may also allow you to generate an array that matches a future fieldās array structure, like āAggregate to JSON + Parse JSONā, or āCreate JSON + Parse JSONā, but this is an advanced topic.
Question: Are you mapping your array into a field that accepts more than one item/collection?
For more information, see āMapping with arraysā in the Help Centre. You should also do the Make Academy, which also covers the use of Iterators & Aggregators.
Hope this helps! If you are still having trouble, please provide more details.
ā @samliew
What is your goal?
What is the problem?
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