![]() ![]() fields ) Defaults to toplevel JSON attributes.Only effective when using the streaming API and not in object mode. ndjson indicates that the data is in NDJSON format.error ( err ) ) // You can also listen for events on the conversion and see how the header or the lines are coming out. Import const parser = new StreamParser ( opts, asyncOpts ) let csv = '' parser. You can install json2csv as a dependency using NPM. Formatters convert JSON data types into CSV-compatible strings. Formatters: Includes the built-in formatters for json2csv (one for each data type, an excel-specific one, etc.).Transforms: Includes the built-in transforms for json2csv (unwind and flatten) allowing the using to transform data before is parsed.WHATWG: Includes the WHATWG Transform Stream and WHATWG Async Parser APIs for users of WHATWG streams (browser, Node or Deno).Īnd a couple of libraries that enable additional configurations:.Node: Includes the Node Transform and Node Async Parser APIs for Node users.Plainjs: Includes the Parser API and a new StreamParser API which doesn't the conversion in a streaming fashion in pure js.Pretty printing in table format to stdout.Automatic escaping (preserving new lines, quotes, etc.).Highly customizable (supportting custom quotation marks, delimiters, eol values, etc.).Support for custom csv cell formatting.Support for custom input data transformation.Advanced data selection (automatic field discovery, underscore-like selectors, custom data getters, default values for missing fields.Scalable to infinitely large datasets (using stream processing).Support for standard JSON as well as NDJSON.Stream Parser: An asynchronous JSON to CSV converter written in plain js.So it's not advisable for big dataset or the browser. It's fast and simple, but it loads the entire dataset in memory and block the event loop. ![]() Parser: A synchronous JSON to CSV converter written in plain js.It fully support conversion following the RFC4180 specification as well as other similar text delimited formats as exposes plain JavasScript modules of json2csv which can be used in Node.js, the browser or Deno. And highly configurable JSON to CSV converter. ![]()
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