flatterer
json2csv
flatterer | json2csv | |
---|---|---|
14 | 1 | |
165 | 799 | |
- | - | |
6.6 | 2.6 | |
3 months ago | 12 months ago | |
Rust | Go | |
MIT License | MIT License |
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flatterer
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How to convert a massive JSON into CSV
This tool was built for this purpose https://github.com/kindly/flatterer
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Show HN: Flatterer Lite, A Rust WASM JSON to tabular converter, for nested data
I have been working on this Rust based JSON flattener (https://github.com/kindly/flatterer) to XLSX/CSV/SQLITE/PARQUET/POSTGRES for about 2 years. I finally made a WASM based one for CSV/XLSX which is really easy to play with. You can use it via a url (if the data has CORS headers), for example https://lite.flatterer.dev?url=https%3A%2F%2Fdummyjson.com%2....
The main difference with other converters/flatteners is that for one-to-many relationships (lists of objects in JSON) it produces a multi table output with keys to help join the tables together. Essentially produces a relational schema, along with some type information, of the JSON provided. For simple non-nested JSON it works too, but is a bit overkill.
Its all opensource and free, and I think that it will become more and more useful as JSON/Graphql APIs proliferate.
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Create table from JSON
flatterer is the easiest option and will do this for you. It will also load the data into a sqlite or postgres database for you.
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Robust Rust Library for Converting JSON Objects into CSV Rows
I have also written something similar but higher level flatterer which is python but is a binding to libflatterer. Its main difference is when there is a list of objects it treats it a one to many and creates a separate CSV file.
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Flatten a massive json file
flatterer (github) is designed for this.
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Simple GUI tool to query JSON or CSV databases [I have no coding skills]
This looks great and using duckdb as a backend us a great choice. For JSON I suggest using flatterer https://flatterer.opendata.coop/ . Which will convert most JSON into CSV/Parquet with very little technical knowledge.
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Rust for Data Engineering
My project flatterer (used for flattening JSON into tables) also is mainly a python cli/libarary but is written in Rust for speed/memory efficiency and better concurrency.
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JSON Processing
I have been working on a similar tool for the last while called flatterer (github). It has a similar aim and works with most kinds of JSON well (but not very well with top level objects like yours).
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Stream processing - Nested JSON to Parquet
You could try Option B with flatterer https://flatterer.opendata.coop/ which purpose is to convert nested JSON into other formats without a schema upfront including parquet.
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Turning JSON arrays into tables - Data flattening
flatterer docs (github)
json2csv
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Select, put and delete data from JSON, TOML, YAML, XML and CSV files
In addition to the already mentioned jq, there's https://github.com/jehiah/json2csv
What are some alternatives?
libflatterer - Lib flatterer: A lib to make JSON flatterer
yj - CLI - Convert between YAML, TOML, JSON, and HCL. Preserves map order.
miller - Miller is like awk, sed, cut, join, and sort for name-indexed data such as CSV, TSV, and tabular JSON
flatten-tool - Tools for generating CSV and other flat versions of the structured data
dasel - Select, put and delete data from JSON, TOML, YAML, XML and CSV files with a single tool. Supports conversion between formats and can be used as a Go package.
jq - Command-line JSON processor [Moved to: https://github.com/jqlang/jq]
json-roller - Command line tool for converting json data structures to tables
adventofcode - https://adventofcode.com/
jellex - TUI to filter JSON and JSON Lines data with Python syntax
adventofcode2021