appsync-template-tester

appsync-template-tester

Use

Example

yarn add appsync-template-tester --dev

import Parser from 'appsync-template-tester';
import { readFileSync } from 'fs';
import { join } from 'path';

// Load from a file (if not in a string already)
const templateFilePath = join(__dirname, './pathToFile.vtl');
const template = readFileSync(templateFilePath);

// Create the resolver
const parser = new Parser(template);

test('Test the resolver', () => {
  // The Appsync Context (ctx) object
  const context = {
    // For example with a dynamoDB response resolver:
    result: {
      id: 'testId',
      // ...
    },
  };

  const response = parser.resolve(context);

  // For convenience, the response is returned as a JS object rather than JSON
  expect(response.id).toBe('testId');
});

Util helpers supported

This module supports all the provided $util methods, which can be seen in the Resolver Mapping Template Utility Reference docs.

Note: The errors list is not exported (and cannot be without modifying the velocityjs compiler).

Skyhook CD Checklist

CD Feature	Provided
✅	Typescript
✅	Linting (AirBnB + Prettier)
✅	Unit tests (Jest)
✅	Coverage check (ideally 100% with Jest)
✅	Github Continuous Deployment

Built by Skyhook

This module is contributed by the team at Skyhook.