Crate dynamodb_expression
source ·Expand description
A package to help build DynamoDB filter and condition expressions in a type safe way.
use aws_sdk_dynamodb::{
operation::scan::ScanInput,
types::{AttributeValue, Put},
};
use dynamodb_expression::{attribute_not_exists, begins_with, cmp, size, Comparator::*};
ScanInput::builder()
.filter_expression(begins_with("#name", ":prefix").and(cmp("#age", GE, ":min_age")))
.expression_attribute_names("#name", "name")
.expression_attribute_values(":prefix", AttributeValue::S("Wil".into()))
.expression_attribute_names("#age", "age")
.expression_attribute_values(":min_age", AttributeValue::N("25".into()))
.build()
.unwrap();
Put::builder()
.condition_expression(attribute_not_exists("#name").or(cmp(size("#name"), EQ, ":zero")))
.expression_attribute_names("#name", "name")
.expression_attribute_values(":zero", AttributeValue::N(0.to_string()))
.build();Re-exports
pub use attribute_type::AttributeType;pub use comparator::Comparator;pub use expression::between;pub use expression::cmp;pub use expression::in_;pub use function::attribute_exists;pub use function::attribute_not_exists;pub use function::attribute_type;pub use function::begins_with;pub use function::contains;pub use function::size;