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FFQL (Flatfile Query Language) is Flatfile’s custom query language used for filtering data in Sheets. It’s logical, composable, and human-readable. For example, to find records where the first name is “Bender”: 
first_name eq Bender

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Syntax

The basic syntax of FFQL is: 
[field name] <operator> <value>

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Field Name

field name is optional and excluding a field name will search across all fields. For example: eq "Planet Express" will search across all fields for that value. field name can be the field key or the field label. Labels or values with spaces should be wrapped in quotes. For example: name eq "Bender Rodriguez", or "First Name" eq Bender.

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Operators

FFQL operators are:
  • eq - Equals (exact match)
  • ne - Not Equal
  • lt - Less Than
  • gt - Greater Than
  • lte - Less Than or Equal To
  • gte - Greater Than or Equal To
  • like - (Case Sensitive) Like
  • ilike - (Case Insensitive) Like
  • contains - Contains (for columns of type string-list and enum-list)
Both like and ilike support the following wildcards:
  • % - Matches any number of characters
  • _ - Matches a single character
So, for instance, like "Bender%" would match “Bender Rodriguez” and “Bender Bending Rodriguez”.

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Logical Operators

FFQL supports two logical operators:
  • and - Returns rows meeting both conditions
  • or - Returns rows meeting either conditions (inclusive)

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The is Operator

You can query for message statuses by using the is operator. For example: is error returns all the rows in an error state. is valid returns all the rows in a valid state. first_name is error returns the rows where First Name is in an error state.

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Escaping Quotes and Backslashes

When you need to include quotes or backslashes within quoted values, you can escape them using a backslash (\). Here are examples of how escaping works:
QueryValue
"hello \" world"hello " world
'hello \' world'hello ' world
"hello world \\"hello world \
"hello \ world"hello \ world
"hello \\ world"hello \ world
For example, to search for a field containing a quote: 
first_name eq "John \"Johnny\" Doe"
This would match a first name value of: John "Johnny" Doe

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Constructing Queries

Complex queries are possible using a combination of operators: 
(
    email like "@gmail.com"
    and (
        "Subscription Status" eq "On-Hold"
        or "Subscription Status" eq "Pending"
    )
    and login_attempts gte 5
)
or is warning
This query would return all the rows that:
  1. Have a Gmail email address,
  2. Have a Subscription Status of “On-Hold” or “Pending”,
  3. And have more than 5 login attempts.
It will also include any rows that have a “Warning” message status.

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Usage

From the search bar in a Workbook, prepend filter: to your FFQL query. type in search bar 
filter: first_name eq Bender and last_name eq Rodriguez

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Via API

FFQL queries can be passed to any REST API endpoint that supports the q parameter. Here’s an example cURL request using the sheets/<sheetId>/records endpoint: Shell / cURL 
curl --location 'https://platform.flatfile.com/api/sheets/us_sh_12345678/records?q="Subscription Status" eq "On-Hold" or "Subscription Status" eq "Pending"' \
    --header 'Accept: */*' \
    --header 'Authorization: Bearer <bearer token>'
Make sure to encode percent characters if you use them.