postgres-schema-ts
postgres-schema-ts coverts Postgres schemas into typescript interfaces
Last updated 10 months ago by nettofarah .
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postgres-schema-ts

postgres-schema-ts is a simple npm module you can use to convert a postgres schema into typescript interfaces

Usage

# to infer an entire schema
$ npx postgres-schema-ts postgresql://postgres@localhost:5433/db?currentSchema=public

# to infer a specific table
$ npx postgres-schema-ts postgresql://postgres@localhost:5433/db?currentSchema=public table_name

tip: You can pipe the output of postgres-schema-ts into a file with npx postgres-schema-ts <args> > schema.ts

Demo

For the following SQL schema:

CREATE TABLE account (
  username VARCHAR (50) UNIQUE NOT NULL,
  password VARCHAR (50) NOT NULL,
  email VARCHAR (355) UNIQUE NOT NULL,
  created_on TIMESTAMP NOT NULL,
  last_login TIMESTAMP
)

run:

$ npx postgres-schema-ts postgresql://postgres@localhost:5433/db?currentSchema=public
export interface account {
  username: string
  password: string
  email: string
  created_on: Date
  last_login: Date | null
}

Using postgres-schema-ts programatically

import { inferSchema, inferTable } from 'postgres-schema-ts'

await inferSchema(connectionString)
await inferTable(connectionString, tableName)

Design

postgres-schema-ts is inpired by the awesome schemats library. But takes a simpler, more blunt, and configuration free approach:

  • Simpler defaults
  • Postgres support only
  • Inline enums
  • No support for namespaces

License (MIT)

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Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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  • 0.1.1                                ...           latest (10 months ago)

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