https://github.com/ecshreve/jcgo

json to csv converter written in golang
https://github.com/ecshreve/jcgo

csv github-actions golang json makefile prs-welcome

Last synced: 2 days ago
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json to csv converter written in golang

• Host: GitHub
• URL: https://github.com/ecshreve/jcgo
• Owner: ecshreve
• License: mit
• Created: 2020-06-08T03:09:57.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-07-25T02:03:09.000Z (about 4 years ago)
• Last Synced: 2024-09-25T09:22:45.539Z (8 days ago)
• Topics: csv, github-actions, golang, json, makefile, prs-welcome
• Language: Go
• Homepage:
• Size: 11.5 MB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# jcgo

[![Go](https://github.com/ecshreve/jcgo/workflows/Go/badge.svg?branch=master)](https://github.com/ecshreve/jcgo/actions)

[![GoDoc](https://godoc.org/github.com/ecshreve/jcgo?status.svg)](https://godoc.org/github.com/ecshreve/jcgo)

[![Go Report Card](https://goreportcard.com/badge/github.com/ecshreve/jcgo)](https://goreportcard.com/report/github.com/ecshreve/jcgo)

[![Go Version](https://img.shields.io/github/go-mod/go-version/ecshreve/jcgo)](https://golang.org/doc/go1.14)

[![codecov](https://codecov.io/gh/ecshreve/jcgo/branch/master/graph/badge.svg)](https://codecov.io/gh/ecshreve/jcgo)

## Description

JSON to CSV converter in Golang.

**Note: at this time, this converter doesn't implement the full JSON spec.** (it doesn't currently handle arrays of scalar values, only arrays of `map[string]interface{}`)

## Usage

`jcgo` reads JSON from the file specified as a command line argument, parses the JSON, and writes the data to a CSV file.

```{bash}

> git clone https://github.com/ecshreve/jcgo.git

> cd jcgo

> make build

> bin/jcgo jsontestlocal.json jsontestlocal.output.csv

2020/07/24 18:39:22 generated csv file: jsontestlocal.output.csv

> cat jsontestlocal.output.csv | column -t -s ,

afterState_arrivedAt  afterState_departureTimeMs  afterState_destinationName  afterState_id  afterState_jobState  beforeState_arrivedAt  beforeState_departureTimeMs  beforeState_destinationName  beforeState_id  beforeState_jobState  changedAtMs    events_eventAt  events_eventType  id

0                     0                           CARI307                     4337769816     4                    0                      0                            CARI307                      4337769816      4                     1591056576414  1591056576414   0                 4333023554

1591034132029         1591034209011               JASON077                    4337769817     3                    1591034132029          1591034209011                JASON077                     4337769817      3                     1591056576414  1591056576414   0                 4333023554

```

## reference

- [Effective Go](https://golang.org/doc/effective_go.html)

- [Tour of Go](https://tour.golang.org/list)

- [Go by Example](https://gobyexample.com/)

- [Using Go Modules](https://blog.golang.org/using-go-modules)

- [encoding/json](https://golang.org/pkg/encoding/json/)

- [encoding/csv](https://golang.org/pkg/encoding/csv/)

- [JSON specification](https://www.json.org/json-en.html)

## Googling

Here's an abbreviated list of the things I googled while making this (in no particular order).

- json to csv

- arbitrary json to csv

- parse json golang

- parse nested json

- json to csv golang github

- json spec

- graphql json results

- write to csv golang

- golang parse command line args

- golang flag package

- golang use flags in test

- longest common prefix

- golang module

- golang project organization

- golang remove dependencies from module

- go install vs go build

- godoc json

- godoc csv

- golang stringer

- golang interface inheritance

- golang init function

- golang sort custom type

- golang embedded struct

  ...

  and many, many more