Function validateAjv

Creates a middleware, that validates the data of the 'body' property inside the 'request' object with the help of a Ajv/JSON schema.

See

https://www.npmjs.com/package/ajv

Example

import assert from 'assert'
import createServer, { IHttpRequest, IHttpResponse, json, JSONSchema7, validateAjv } from '@egomobile/http-server'

interface IMySchema {
  email: string;
  name?: string;
}

// by default, following settings will be auto-set, if not defined:
//
// - `mySchema.additionalProperties` === `false`
const mySchema: JSONSchema7 = {
  type: "object",
  required: ["email"],
  properties: {
    email: {
      type: "string",
      pattern: "^(([^<>()[\\].,;:\\s@\"]+(\\.[^<>()[\\].,;:\\s@\"]+)*)|(\".+\"))@(([^<>()[\\].,;:\\s@\"]+\\.)+[^<>()[\\].,;:\\s@\"]{2,})$"
    },
    name: {
      type: "string",
      minLength: 1,
      pattern: "^(\\S+)(.*)(\\S*)$"
    }
  }
};

const app = createServer()

app.post('/', [json(), validateAjv(mySchema)], (request, response) => {
  const body: IMySchema = request.body

  assert.strictEqual(typeof body, 'object')
  assert.strictEqual(typeof body.email, 'string')

  if (typeof body.name !== 'undefined') {
    assert.strictEqual(typeof body.name, 'string')
    assert.strictEqual(body.name.length > 0, true)
  }
})

// ...
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