Filtering Airtable Records with Linked Record Lookup in API Request

I’m working on retrieving specific records from an Airtable base using the public API, but I’m struggling to filter rows based on a linked record column. My goal is to fetch only rows that contain a particular linked record object ID.

My Current Attempts

I’ve tried two different approaches to filter the records:

// Attempted filter methods
filter = {columnName} = "<target_object_id>"
filter = FIND("<target_object_id>", ARRAYJOIN({columnName}, ' ')) > 0

However, neither method successfully returns the desired rows. Since the linked record column returns an array of object IDs, I expected these filters to work.

Help Needed

Can someone provide guidance on constructing the correct filter formula to match a specific linked record in the API request? I’m using the Airtable.Net client and want a reliable way to filter records based on linked entity presence.

Appreciate any insights!

Interesting challenge with Airtable filtering. I've encountered similar issues when working with linked records. Instead of struggling with complex filter formulas, I recommend a pragmatic approach: use the API to retrieve records and then apply client-side filtering.

In your C# code, you can leverage LINQ to filter records efficiently. Create a method that fetches all records and then uses a `.Where()` clause to match linked record IDs. This approach gives you more control and allows for complex filtering logic that Airtable's formula syntax might not support directly.

Pro tip: If performance becomes an issue with large datasets, consider creating a custom formula field in Airtable that pre-checks the condition, which you can then use as a more efficient filtering mechanism. The key is being flexible with your filtering strategy.

Hey! try usin .Contains() method in ur c# code. Fetch all records n filter w/ linq. Rly simple solution that shud work for linked record filtering. Worked 4 me b4 :+1:

Been there with Airtable API filtering! The tricky part with linked records is that their filter formulas aren't always straightforward. From my experience, the most reliable method is client-side filtering using .NET's LINQ capabilities.

What I typically do is retrieve all records and then use `.Where()` to match linked record IDs precisely. This gives you more granular control compared to Airtable's sometimes limited formula syntax. Just fetch your records, then apply a condition like `record.LinkedRecordField.Contains(targetId)` - clean and effective.

Pro developer tip: If you're dealing with massive datasets, consider creating a boolean formula field in Airtable that pre-checks your condition. It'll make your API requests more efficient and reduce client-side processing overhead.