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ohmyzsh/plugins/jsontools/README.md
2024-10-27 15:13:58 +01:00

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# jsontools
Handy command line tools for dealing with json data.
To use it, add `jsontools` to the plugins array in your zshrc file:
```zsh
plugins=(... jsontools)
```
## Requirements
The plugin uses one of these tools to process JSON data, in the following order:
- `node`
- `python3`
- `ruby`
Any of these must be in `$PATH` before the plugin is loaded, otherwise the plugin exits
prematurely and the functions will not be available.
## Usage
Usage is simple... just take your json data and pipe it into the appropriate jsontool:
- `pp_json`: pretty prints json.
- `is_json`: returns true if valid json; false otherwise.
- `urlencode_json`: returns a url encoded string for the given json.
- `urldecode_json`: returns decoded json for the given url encoded string.
### Supports NDJSON (Newline Delimited JSON)
The plugin also supports [NDJSON](https://github.com/ndjson/ndjson-spec) input, which means all functions
have an alternative function that reads and processes the input line by line. These
functions have the same name except using `ndjson` instead of `json`:
> `pp_ndjson`, `is_ndjson`, `urlencode_ndjson`, `urldecode_ndjson`.
### Examples
- **pp_json**:
```console
# curl json data and pretty print the results
curl https://coderwall.com/bobwilliams.json | pp_json
```
- **is_json**:
```console
# validate if file's content conforms to a valid JSON schema
$ is_json < data.json
true
# shows true / false and returns the proper exit code
$ echo $?
0
```
- **urlencode_json**:
```console
# json data directly from the command line
$ echo '{"b":2, "a":1}' | urlencode_json
%7B%22b%22:2,%20%22a%22:1%7D
```
- **urldecode_json**:
```console
# url encoded string to decode
$ echo '%7B%22b%22:2,%20%22a%22:1%7D' | urldecode_json
{"b":2, "a":1}
```
- **pp_ndjson**:
```console
# echo two separate json objects and pretty print both
$ echo '{"a": "b"}\n{"c": [1,2,3]}' | pp_ndjson
{
"a": "b"
}
{
"c": [
1,
2,
3
]
}
```