Mammoth
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Mammoth
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Mammoth
A type-safe query builder pur sang
    Type-safe query builder—sticking as close to SQL as possible
    BYOCP (bring your own connection pool)
    Supports Postgres only
    Excellent autocomplete
    Train_case to camelCase and vice versa conversion
    Auto-migration generation based on your schema changes
    ​Awesome CLI to run your migrations​
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db.with(
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`regionalSales`,
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() =>
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db
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.select(db.orderLog.region, sum(db.orderLog.amount).as(`totalSales`))
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.from(db.orderLog)
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.groupBy(db.orderLog.region),
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`topRegions`,
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({ regionalSales }) =>
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db
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.select(regionalSales.region)
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.from(regionalSales)
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.where(
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regionalSales.totalSales.gt(
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db.select(sum(regionalSales.totalSales).divide(10)).from(regionalSales),
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),
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),
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({ topRegions }) =>
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db
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.select(
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db.orderLog.region,
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db.orderLog.product,
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sum(db.orderLog.quantity).as(`productUnits`),
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sum(db.orderLog.amount).as(`productSales`),
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)
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.from(db.orderLog)
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.where(db.orderLog.region.in(db.select(topRegions.region).from(topRegions)))
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.groupBy(db.orderLog.region, db.orderLog.product),
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);
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The above is a crazy example what Mammoth can do. The best part is that the return type is automatically inferred. No worries you're making a mistake there. And all of this works without a build step. No need to have a file watcher running.
Mammoth consists of a couple of repositories:
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Getting started
Last modified 11mo ago
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