@techniker-me/csv

Usage

Parse from string

import { CsvParser } from "@techniker-me/csv";

const parser = new CsvParser();
const csv = "name,age\nAlice,30\nBob,40";
const result = await parser.parseFromString(csv, {
  hasHeader: true,
  output: "object", // "object" or "array"
});

// result.headers -> ["name", "age"]
// result.rows -> [{ name: "Alice", age: "30" }, { name: "Bob", age: "40" }]

Parse from file

import { CsvParser, FileChunkSource } from "@techniker-me/csv";

const parser = new CsvParser();
const source = new FileChunkSource("/path/to/file.csv");
const result = await parser.parseFromSource(source, {
  hasHeader: true,
  output: "array",
});

Dialect options

import { CsvParser, CsvDialect } from "@techniker-me/csv";

const parser = new CsvParser();
const result = await parser.parseFromString("a;b\n1;2", {
  hasHeader: true,
  dialect: { delimiter: ";", quote: '"', trimWhitespace: true },
});

API

• CsvParser.parseFromString(input: string, options?: ParseOptions)
• CsvParser.parseFromSource(source: IChunkSource, options?: ParseOptions)
• FileChunkSource(path: string, chunkSize?: number)
• StringChunkSource(content: string, chunkSize?: number)

ParseOptions:

• dialect (partial): { delimiter, quote, trimWhitespace }
• hasHeader: treat first row as headers (default true for object mode, optional for array mode)
• output: "object" | "array" (default "array")
• validateRowLength: pads/truncates rows to uniform length (default true)
• skipEmptyLines: ignore empty lines (default true)