Insomnia API Helper

A library for using an Insomnia API design document's requests within JavaScript, e.g. for testing

Using The Library

Create An API Instance

1. Export your Insomnia API design document as an Insomnia v4 JSON file
2. Import/parse the JSON file into your project as an object
3. Construct an instance of the API using:

const myApi = new InsomniaApi(jsonApiObject, optionalNameOfEnvironmentToUse);

An instance will be created with all environment variables instantiated as per your selected environment.

Environment Variables

When making requests, environment variable placeholders in the request will automatically be populated, as per your selected environment. Environment variables can be accessed (and changed) via the myApi.envVars object.

You can also call myApi.setEnvironment(environmentName) to refresh all environment variables as per the specified environment.

Auth

If required, set an OAuth2 token on the API, which will be used in all requests:

myApi.setAuthToken(myAuthToken);

Requests

Create an instance of a request that is defined in your design document by its name, and modify it as required:

const updateRequest = myApi.getRequestByName("Update User By ID");

Set Path Parameters

updateRequest.pathParameters["id"] = "101";

Set Query Parameters

updateRequest.queryParameters["someQueryParameter"] = "value";

Set Body

updateRequest.body = {
  firstName: "John",
  lastName: "Smith",
  email: "[email protected]"
};

Send Request

const response = await updateRequest.send();

Note. This makes and returns a fetch request/response.

Example Usage

import { InsomniaApi } from "@aqovia/insomnia-api-helper";
import usersApiDesignDocument from "./users-api.json" assert { type: "json" }; // an exported Insomnia v4 JSON design document
import { expect } from "chai";

describe("Users API", function () {
  const environment = process.env.SELECTED_ENVIRONMENT || "Test";
  const usersApi = new InsomniaApi(usersApiDesignDocument, environment);

  before(async function () {
    const authToken = await getAuthToken( // your own custom logic to retrieve an auth token
      usersApi.envVars["tokenUrl"],
      usersApi.envVars["clientId"],
      usersApi.envVars["clientSecret"]
    );

    usersApi.setAuthToken(authToken);
  });

  let newUser;

  it("should create a user", async function () {
    newUser = {
      email: "[email protected]",
      firstName: "John",
      lastName: "Smith",
      phone: "12345",
    };

    const createUserRequest = usersApi.getRequestByName("Create A User");
    createUserRequest.body = { ...createUserRequest.body, ...newUser };
    
    const createUserResponse = await createUserRequest.send();
    expect(createUserResponse.status).to.equal(201);

    const createUserResponseBody = await createUserResponse.json();
    expect(createUserResponseBody).to.have.property("id");
    
    newUser.id = createUserResponseBody.id;
  });

  it("should retrieve a user by ID", async function () {
    const getUserRequest = usersApi.getRequestByName("Get User By ID");
    getUserRequest.pathParameters.id = newUser.id;
    
    const getUserResponse = await getUserRequest.send();
    expect(getUserResponse.status).to.equal(200);

    const getUserResponseBody = await getUserResponse.json();
    expect(getUserResponseBody.email).to.equal(newUser.email);
  });
});