Guide on verifying API response structure in Playwright with TypeScript

As a newcomer to Playwright, my focus is on writing API tests in TypeScript with an API response structured like this:

{
  "id" : "abc123",
  "appCode" : "09000007",
  "applicationReference" : "ABCDEF",
  "datetimeSubmitted" : "2023-03-09T17:56:28.912876Z",
  "firstName" : "ABC",
  "surname" : "DEF",
  "lastAddress" : {
    "street" : "9779 Pat Loaf",
    "property": "2"
  }
}

I am seeking guidance on how to validate the JSON schema within the response JSON using TypeScript in the Playwright framework.

Specifically, I wish to verify if the response JSON includes:

id, appCode, applicationReference, datetimeSubmitted, firstname, surname, lastAddress.street, lastAddress.property

Could you suggest any methods or third-party plugins that can assist in conducting such tests with Playwright?

Your assistance would be greatly appreciated.

typescriptplaywright

Answer №1

Consider utilizing JSON Schema in your workflow. This tool is designed to assist with annotating and validating JSON documents, offering a range of implementations to suit various needs. It could prove invaluable for achieving your objectives.

Answer №2

Although this response may be coming in late, one way to validate the schema is by utilizing the "chai-json-schema" npm package. Simply import it into your test file:

const { chai } = require('chai')
import { expect as expectChai } from 'chai'
chai.use(require('chai-json-schema'))

Within your test block, you can then use the following code:

expectChai(response).to.be.jsonSchema(uploadResponseSchema);

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