Enables tasks filtering by a condition. Format for filter query parameter:

filter=({Condition Type}[AND/OR {Condition Type}]*)

The Condition types are:

• equals(property, value): exact match condition ignoring case.
• not equals(property, value): not equals condition ignoring case.
• equalsCaseSensitive(property, value): exact match condition ignoring case.
• containsWordStartingWith(property, tokenized value): prefix condition; returns entities that have condition property starting with condition value.
• startsWith(property, stricted value): prefix condition; returns tasks that have condition property starting with condition value.
• fullText(property, value): full text search; returns tasks that have condition property with condition value (any place).
• missing(property): returns tasks with fields that have no values for property or property value is empty.

• exists(property): returns tasks having some not empty value for property.