openapi-doc-parser
v0.16.6
Published
Transform an API documentation (Hydra, OpenAPI, GraphQL) in an intermediate representation that can be used for various tasks such as creating smart API clients, scaffolding code or building administration interfaces.
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API Doc Parser
api-doc-parser
is a standalone TypeScript library to parse Hydra, Swagger, OpenAPI and GraphQL documentations
and transform them in an intermediate representation.
This data structure can then be used for various tasks such as creating smart API clients,
scaffolding code or building administration interfaces.
It plays well with the API Platform framework.
Install
With Yarn:
yarn add @api-platform/api-doc-parser
Using NPM:
npm install @api-platform/api-doc-parser
If you plan to use the library with Node, you also need a polyfill for the fetch
function:
yarn add isomorphic-fetch
Usage
Hydra
import { parseHydraDocumentation } from '@api-platform/api-doc-parser';
parseHydraDocumentation('https://demo.api-platform.com').then(({api}) => console.log(api));
OpenAPI v2 (formerly known as Swagger)
import { parseSwaggerDocumentation } from '@api-platform/api-doc-parser';
parseSwaggerDocumentation('https://demo.api-platform.com/docs.json').then(({api}) => console.log(api));
OpenAPI v3
import { parseOpenApi3Documentation } from '@api-platform/api-doc-parser';
parseOpenApi3Documentation('https://demo.api-platform.com/docs.json?spec_version=3').then(({api}) => console.log(api));
GraphQL
import { parseGraphQl } from '@api-platform/api-doc-parser';
parseGraphQl('https://demo.api-platform.com/graphql').then(({api}) => console.log(api));
OpenAPI Support
In order to support OpenAPI, the library makes some assumptions about how the documentation relates to a corresponding ressource:
- The path to get (
GET
) or edit (PUT
) one resource looks like/books/{id}
(regular expression used:^[^{}]+/{[^{}]+}/?$
). Note thatbooks
may be a singular noun (book
). If there is no path like this, the library skips the resource. - The corresponding path schema is retrieved for
get
either in the [response
/200
/content
/application/json
] path section or in thecomponents
section of the documentation. If retrieved from thecomponents
section, the component name needs to look likeBook
(singular noun). Forput
, the schema is only retrieved in the [requestBody
/content
/application/json
] path section. If no schema is found, the resource is skipped. - If there are two schemas (one for
get
and one forput
), resource fields are merged. - The library looks for a creation (
POST
) and list (GET
) path. They need to look like/books
(plural noun). - The deletion (
DELETE
) path needs to be inside the get / edit path. - In order to reference the resources between themselves (embeddeds or relations), the library guesses embeddeds or references from property names.
For instance if a book schema has a
reviews
property, the library tries to find aReview
resource. If there is, a relation or an embedded betweenBook
andReview
resources is made for thereviews
field. The property name can also be likereview_id
,reviewId
,review_ids
orreviewIds
for references. - Parameters are only retrieved in the list path.
Support for other formats (JSON:API...)
API Doc Parser is designed to parse any API documentation format and convert it in the same intermediate representation. If you develop a parser for another format, please open a Pull Request to include it in the library.
Run tests
yarn test
yarn lint
Credits
Created by Kévin Dunglas. Sponsored by Les-Tilleuls.coop.