OpenAPI Commander

- Overview
- Features
- Setup
- Examples
* Commands grouped by tag
* Basic GET example
* Global options
+ Custom server
+ Set Authorization header
+ Print request without sending
+ Print a curl command of the request
* Print example request bodies
- Build standalone binaries
- A very incomplete TODO list...
- Contributing

Overview

Generate a Node.js command line tool from an OpenAPI definition using the
commander library.

It can be used as a starter for writing command line tools that talk to APIs,
or as an alternative to using curl to work with APIs.

Features

- Generate clean code from your spec.
- Supports Swagger 2, OpenAPI 3.0 and 3.1.
- Show examples of request bodies, using examples from the spec or generated with openapi-sampler.
- Verbose mode to see response headers.
- Print a curl command of the request.

Setup

1. Create an npm project with npm init or use an existing one. Your Node.js version must be 16+

2. Install dependencies

``
npm install commander@9
npm install --save-dev openapi-commander
`

3. Generate the CLI code

`
npx openapi-commander generate

`

e.g.

`
npx openapi-commander generate https://raw.githubusercontent.com/OAI/OpenAPI-Specification/main/examples/v3.0/petstore.yaml petstore.js
`

4. Run

`
node petstore.js ...
`


Examples

Subcommands

The commands are grouped by their first tag in the OpenAPI spec (the same logic
that Swagger UI uses). Operations

`
~/petstore$ node petstore.js

Usage: petstore [options] [command]

Options:
-p, --print Print the HTTP request instead of sending it. (choices: "curl", "plain")
-s, --server Server to use
-a, --auth Authorization header to send
-h, --help display help for command

Commands:
pet Everything about your Pets
store
user Operations about user
help [command] display help for command
`

`
~/petstore$ node petstore.js pet
Usage: petstore pet [options] [command]

Everything about your Pets

Options:
-h, --help display help for command

Commands:
updatePet [options] Update an existing pet
addPet [options] Add a new pet to the store
findPetsByStatus [options] Finds Pets by status
findPetsByTags [options] DEPRECATED Finds Pets by tags
getPetById Find pet by ID
updatePetWithForm [options] Updates a pet in the store with form data
deletePet [options] Deletes a pet
uploadFile [options] uploads an image
help [command] display help for command
`

Basic GET example

`
~/petstore$ node petstore.js pet getPetById 1
Status: 200
{
"id": 1,
"category": {
"id": 1,
"name": "Hola"
},
"name": "Perrito",
"photoUrls": [
"/tmp/inflector995596007222725944.tmp"
],
"tags": [
{
"id": 1,
"name": "Bizcocho"
}
],
"status": "available"
}
`

You can also add the -v flag to show response headers.

Global options

$3

`
~/petstore$ node petstore.js -s https://mypetstore.example pet getPetById 1
`

Alternatively you can override it by setting the environment variable {COMMANDNAME}_SERVER, e.g. PETSTORE_SERVER.

$3

`
~/petstore$ node petstore.js -a 'Bearer mytoken' getPetById 1
`

Alternatively you can override it by setting the environment variable {COMMANDNAME}_AUTH, e.g. PETSTORE_AUTH.

$3

`
~/petstore$ node petstore.js pet -a 'Bearer mytoken' -s https://mypetstore.example getPetById 1 --print plain
GET https://mypetstore.example/pet/1
Authorization: Bearer mytoken
Accept: application/json
`

$3

`
~/petstore$ node petstore.js pet -a 'Bearer mytoken' -s https://mypetstore.example getPetById 1 --print curl
curl -X GET -H 'Authorization: Bearer mytoken' -H 'Accept: application/json' 'https://mypetstore.example/pet/1'
`

Print example request bodies

`
~/petstore$ node petstore.js pet updatePet examples
Example for application/json:
{
"id": 10,
"name": "doggie",
"category": {
"id": 1,
"name": "Dogs"
},
"photoUrls": [
"string"
],
"tags": [
{
"id": 0,
"name": "string"
}
],
"status": "available"
}
``

Build standalone binaries

To build multi-platform standalone binaries platform I recommend vercel/pkg.

A very incomplete TODO list...

The top priority is to beef up the test suite.

- Syntax highlighting of examples
- Implement different security/auth types.
- Auto-detect request body type from file.
- Show JSON & YAML examples with comments for field descriptions.
-> Strip comments from JSON when passing in
- Strip html/markdown from description
- More serialization options https://swagger.io/docs/specification/serialization/
- application/x-www-form-urlencoded content types.
- Server templating.
- Autocomplete.

Contributing

This is a hobby side project so I have limited time to work on issues but I will
do my best to discuss issues, review PRs and keep the project maintained. Please
open an issue for discussion before opening any significant PRs to avoid any
disappointment about project scope.