Querydsl
kysely
Querydsl | kysely | |
---|---|---|
6 | 42 | |
4,575 | 4,444 | |
0.5% | - | |
4.1 | 9.5 | |
4 days ago | about 1 year ago | |
Java | TypeScript | |
Apache License 2.0 | MIT License |
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Querydsl
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PostgreSQL Is Enough
There is a bit of tooling needed but is already around. For Java for example I had very good experience with a combination of flyway [1] for migrations, testcontainers [2] for making integration tests as easy as unit tests and querydsl [3] for a query and mapping layer.
[1] https://github.com/flyway/flyway
[2] https://java.testcontainers.org/modules/databases/postgres/
[3] https://github.com/querydsl/querydsl
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Apache Empire-Db: Full SQL Freedom for Java
http://querydsl.com/ also seems similar
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Useful & Unknown Java Libraries - Piotr's TechBlog
As for JPA: I cannot miss the QueryDSL library for building typesafe queries. Another interesting alternative is Jinq, that provides a java stream api to query entities.
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You might not need an ORM
> all I really want is a nice API for building queries (that actually supports all underlying database features) and automatic mapping of the results to whatever objects/structs and primitives the language supports.
For Java based solutions, check out https://www.jooq.org/ or http://querydsl.com/
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How do access sql through java in the real world?
QueryDsl -- http://querydsl.com
- How to build SQL query strings?
kysely
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I made a Twitter clone using Deno and Fresh
Did you check https://github.com/koskimas/kysely ? It was great when I used it. It has great TS support.
- Full-Stack TypeScript with tRPC and React
- Kysely
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Type-safe S3 Select queries with Kysely
That’s where Kysely comes to the rescue: Kysely is a type-safe and devX-friendly typescript SQL query builder. It was designed to work with PostgreSQL and MySQL, but it exposes a few classes that can let us write queries without being connected to an actual relational database.
- Vue and trpc?
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Announcing a new TypeScript ORM
prisma (mentioned in the article), zapatos, pgtyped and kysely are the most popular currently I think.
switch between a limited interface and a query builder (MikroORM, TypeORM). This feels like using two different libraries, switching between two different sets of limitations. Kysely is a nice query builder with good TS support, but MikroORM is using Knex instead so you're losing TS, and TypeORM has a custom query builder, less user-friendly than Knex.
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Which ORM do you prefer with nodejs/Typescript project and why ?
I'd love to see Kysely as an option.
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You might not need an ORM
Kysely[1] and zapatos[2] are excellent solutions for type-safe typescript query builders. It’s hard to go back to the days of spending 20-30% of your time in the object mapping layer.
[1] https://github.com/koskimas/kysely
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Simple CQRS in NodeJS with Typescript
Querying the database (PostgreSQL) should not be ground breaking. Personally I like to have full type-safety so we can easily catch bugs during the development time without introducing any tests that are just testing the data type from our datastore to match the data type our API expects. I like to go database schema first, which means that we generate types from the database schema and work with those. Any change to the schema of the database is made with SQL migrations and after that, the typescript types are regenerated. Another approach is to use a code-first tool like TypeORM or Prisma. However in my experience such tools often produce not efficient SQL queries and are less easy to extend. In my projects I use library kysely (https://github.com/koskimas/kysely) with kysely-codegen (https://github.com/RobinBlomberg/kysely-codegen) to have a full type-safe SQL builder.
What are some alternatives?
jOOQ - jOOQ is the best way to write SQL in Java
Knex - A query builder for PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3 and Oracle, designed to be flexible, portable, and fun to use.
JDBI - The Jdbi library provides convenient, idiomatic access to relational databases in Java and other JVM technologies such as Kotlin, Clojure or Scala.
pgtyped - pgTyped - Typesafe SQL in TypeScript
Jinq - LINQ-style queries for Java 8
TypeORM - ORM for TypeScript and JavaScript. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, SAP Hana, WebSQL databases. Works in NodeJS, Browser, Ionic, Cordova and Electron platforms.
Apache Hive - Apache Hive
Sequelize - Feature-rich ORM for modern Node.js and TypeScript, it supports PostgreSQL (with JSON and JSONB support), MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB (v6), DB2 and DB2 for IBM i.
Spring Data JPA - Simplifies the development of creating a JPA-based data access layer.
typetta - Node.js ORM written in TypeScript for type lovers.
Presto - The official home of the Presto distributed SQL query engine for big data
express-ts-base - used for my small projects as base