This is a fork of cebe/php-openapi. I created it as library because the pull request of the openapi3.1 was taking years and a lot of developers want to use it.
Read and write OpenAPI 3.x YAML and JSON files and make the content accessible in PHP objects.
It also provides a CLI tool for validating and converting OpenAPI 3.x Description files.
Supported OpenAPI versions:
- 3.0.x
- 3.1.x
composer require devizzent/cebe-php-openapi
- PHP 7.1 or higher (works fine with PHP 8)
This library provides a low level API for reading and writing OpenAPI files. It is used by higher level tools to do awesome work:
- ... (add yours)
$ vendor/bin/php-openapi help
PHP OpenAPI 3 tool
------------------
by Carsten Brandt <[email protected]>
Usage:
php-openapi <command> [<options>] [input.yml|input.json] [output.yml|output.json]
The following commands are available:
validate Validate the API Description in the specified input file against the OpenAPI v3.0 schema.
Note: the validation is performed in two steps. The results are composed of
(1) structural errors found while reading the API Description file, and
(2) violations of the OpenAPI v3.0 schema.
If no input file is specified input will be read from STDIN.
The tool will try to auto-detect the content type of the input, but may fail
to do so. You may specify --read-yaml or --read-json to force the file type.
Exits with code 2 on validation errors, 1 on other errors and 0 on success.
convert Convert a JSON or YAML input file to JSON or YAML output file.
If no input file is specified input will be read from STDIN.
If no output file is specified output will be written to STDOUT.
The tool will try to auto-detect the content type of the input and output file, but may fail
to do so. You may specify --read-yaml or --read-json to force the input file type.
and --write-yaml or --write-json to force the output file type.
By default all references are resolved (replaced with the object referred to). You can control
handling of references with the following arguments:
--resolve-none Do not resolve references.
--resolve-external Only resolve references that point to external files.
This process is often referred to as "inlining".
--resolve-all Resolve all references (default).
Recursive pointers will stay references.
inline Convert a JSON or YAML input file to JSON or YAML output file and
resolve all external references. The output will be a single API Description file.
This is a shortcut for calling convert --resolve-external.
help Shows this usage information.
Options:
--read-json force reading input as JSON. Auto-detect if not specified.
--read-yaml force reading input as YAML. Auto-detect if not specified.
--write-json force writing output as JSON. Auto-detect if not specified.
--write-yaml force writing output as YAML. Auto-detect if not specified.
-s, --silent silent mode. Will hide all success/information messages and only print errors.
Read OpenAPI Description from JSON file:
use cebe\openapi\Reader;
// realpath is needed for resolving references with relative Paths or URLs
$openapi = Reader::readFromJsonFile(realpath('openapi.json'));Read OpenAPI Description from YAML:
use cebe\openapi\Reader;
// realpath is needed for resolving references with relative Paths or URLs
$openapi = Reader::readFromYamlFile(realpath('openapi.yaml'));
// you may also specify the URL to your API Description file
$openapi = Reader::readFromYamlFile('https://raw.githubusercontent.com/OAI/OpenAPI-Specification/3.0.2/examples/v3.0/petstore-expanded.yaml');Access API Description data:
echo $openapi->openapi; // openAPI version, e.g. 3.0.0
echo $openapi->info->title; // API title
foreach($openapi->paths as $path => $definition) {
// iterate path definitions
}Object properties are exactly like in the OpenAPI Specification. You may also access additional properties added by specification extensions.
use cebe\openapi\spec\OpenApi;
use cebe\openapi\spec\PathItem;
// create base API Description
$openapi = new OpenApi([
'openapi' => '3.0.2',
'info' => [
'title' => 'Test API',
'version' => '1.0.0',
],
'paths' => [],
]);
// manipulate description as needed
$openapi->paths['/test'] = new PathItem([
'description' => 'something'
]);
// ...
$json = \cebe\openapi\Writer::writeToJson($openapi);results in the following JSON data:
{
"openapi": "3.0.0",
"info": {
"title": "Test API",
"version": "1.0.0"
},
"paths": {
"/test": {
"description": "something"
}
}
}Since version 1.2.0, the above example can also be written like this (passing objects instead of arrays):
use cebe\openapi\spec\OpenApi;
use cebe\openapi\spec\PathItem;
use cebe\openapi\spec\Info;
// create base API Description
$openapi = new OpenApi([
'openapi' => '3.0.2',
'info' => new Info([
'title' => 'Test API',
'version' => '1.0.0',
]),
'paths' => [
'/test' => new PathItem([
'description' => 'something'
]),
],
]);
$json = \cebe\openapi\Writer::writeToJson($openapi);In the above we have passed the raw JSON or YAML data to the Reader. In order to be able to resolve references to structures in external files, we must provide the full context.
use cebe\openapi\Reader;
use cebe\openapi\spec\OpenAPI;
use cebe\openapi\ReferenceContext;
// there are two different modes for resolving references:
// ALL: resolve all references, which will result in a large description with a lot of repetition
// but no references (except if there are recursive references, these will stop at some level)
$mode = ReferenceContext::RESOLVE_MODE_ALL;
// INLINE: only references to external files are resolved, references to places in the current file
// are still Reference objects.
$mode = ReferenceContext::RESOLVE_MODE_INLINE;
// an absolute URL or file path is needed to allow resolving external references
$openapi = Reader::readFromJsonFile('https://www.example.com/api/openapi.json', OpenAPI::class, $mode);
$openapi = Reader::readFromYamlFile('https://www.example.com/api/openapi.yaml', OpenAPI::class, $mode);If data has been loaded in a different way you can manually resolve references like this by giving a context:
$openapi->resolveReferences(
new \cebe\openapi\ReferenceContext($openapi, 'https://www.example.com/api/openapi.yaml')
);The library provides simple validation operations, that check basic OpenAPI spec requirements. This is the same as "structural errors found while reading the API Description file" from the CLI tool. This validation does not include checking against the OpenAPI v3.0/v3.1 JSON schemas, this is only implemented in the CLI.
// return `true` in case no errors have been found, `false` in case of errors.
$specValid = $openapi->validate();
// after validation getErrors() can be used to retrieve the list of errors found.
$errors = $openapi->getErrors();
Note: Validation is done on a very basic level and is not complete. So a failing validation will show some errors, but the list of errors given may not be complete. Also a passing validation does not necessarily indicate a completely valid spec.
You may use the docker environment for local development:
docker-compose build
make IN_DOCKER=1 install
make IN_DOCKER=1 test
...
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