openapi-static-validator

CLI to compile an OpenAPI specification as JavaScript validation file, optimized for performances.

Installation

npm install openapi-static-validator -g

Usage

Compilation of the OpenAPI spec to JavaScript

openapi-static-validator spec.json > validate.js

Use of the validation code

Then the validation can be imported in your code:

import { validateRequest, RequestError } from './validate';

const result = validateRequest({
    path: 'say/hello',
    method: 'post',
    headers: {},
    query: {},
    body: {
        message: 'Hello world',
    },
});

if (result instanceof RequestError) {
    // Do something with the error
} else {
    console.log(result);
}

Custom string format

When using format for data of type: string, you need to define validators for them:

import { validateRequest, ValidationError } from './validate';

const result = validateRequest(
    {
        path: 'say/hello',
        method: 'post',
        headers: {},
        query: {},
        body: {
            message: 'Hello world',
        },
    },
    {
        stringFormats: {
            uri: (value, path) =>
                value.startsWith('https://') ? null : new ValidationError(path, 'Invalid url'),
        },
    },
);

TODOs

• in: header and in: cookie parameters
• validation of type: integer, not just as number
• validation of response using a validateResponse function

Development

To publish the package:

• Change version in package.json
• Commit the change and tag it
• Run npm run build and npm publish