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pg-formatter-ts npm Coverage Status

pg-formatter-ts logo

pg-formatter-ts is a TypeScript library that wraps the pgFormatter CLI tool for formatting PostgreSQL SQL code.
With a simple and easy-to-use API, it provides the ability to format SQL code programmatically with various formatting options.

Compared to the existing pg-formatter library, pg-formatter-ts offers improved TypeScript support and better integration with modern TypeScript/JavaScript projects. This library utilizes the same underlying CLI tool, but provides a more streamlined and developer-friendly API. Additionally, pg-formatter-ts supports all available CLI options of pgFormatter, allowing for greater customization and control over the formatting process.

Installation

yarn install pg-formatter-ts

Prerequisites

Ensure that perl is installed on your system, as pgFormatter relies on it. You can check if Perl is installed by running perl -v in your command line. If it's not installed, please visit the Perl official website for installation instructions.

Usage

import { format, PgFormatOptions } from "pg-formatter-ts";

const sqlCode = "SELECT id, name, age FROM users WHERE age >= 18;";
const options: PgFormatOptions = {
    keywordCase: 2,
    spaces: 2,
};

format(sqlCode, options).then((formattedCode) => {
    console.log(formattedCode);
});

Options

pg-formatter-ts accepts an optional PgFormatOptions object as a parameter for the format function. The options available are:

interface PgFormatOptions {
    anonymize?: boolean;
    commaStart?: boolean;
    commaBreak?: boolean;
    config?: string;
    wrapComment?: boolean;
    debug?: boolean;
    commaEnd?: boolean;
    functionCase?: number;
    format?: string;
    nogrouping?: boolean;
    help?: boolean;
    inplace?: boolean;
    keepNewline?: boolean;
    noExtraLine?: boolean;
    maxlength?: number;
    multiline?: boolean;
    nocomment?: boolean;
    numbering?: boolean;
    output?: string;
    placeholder?: string;
    redshift?: boolean;
    spaces?: number;
    separator?: string;
    formatType?: boolean;
    tabs?: boolean;
    keywordCase?: number;
    typeCase?: number;
    version?: boolean;
    wrapLimit?: number;
    wrapAfter?: number;
    noRcfile?: boolean;
    extraFunction?: string;
    extraKeyword?: string;
    noSpaceFunction?: boolean;
}

For a detailed explanation of each option, refer to the pgFormatter documentation.

Disclaimer

The code for this library and this README were generated by an AI called GPT-4, developed by OpenAI. While GPT-4 strives for accuracy, it is possible that the code and documentation may contain errors or inconsistencies. Please feel free to report any issues or submit pull requests with improvements, as your contributions are welcome and appreciated.

License

This project is licensed under the MIT License.