API TESTING

1.0 Application Programming Interface is used as an interface between software components to communicate with each other. API lets your application communicate with other applications without exposing the working of API to any operator. This simplifies the development of any application and saves time. Business needs often change and in order to stay competitive, it is important to support rapid development.

For example, Consider yourself ordering from a menu while seated at a table in a restaurant. The component of the "system" that will prepare your order is the kitchen. The vital link that would connect your order to the kitchen and return your meal to your table is absent. The waiter or API can help with it.

API, which takes your order or request and instructs the system's kitchen. The waiter then brings the response—in this case, the food—back to you. API helps us to have open access to your resources.?

API GROWING BUSINESS:

APIs are now so useful that many businesses rely heavily on them for revenue. Several well-known companies, including Google, eBay, Salesforce.com, Amazon, and Expedia, profit from their APIs. This API market is referred to as the "API economy.”

2.0 Types of API

1. Private APIs?

These application software interfaces are created to enhance products and services offered by an organization.

2. Partner APIs.

Business partners who have entered into a contract with the publisher are given access to partner APIs.

3. Public APIs.

These APIs, often known as developer-facing or external, are accessible to all outside developers. Two categories of public APIs exist.

• Open (free of charge)-

The use of API is open to the public and is not subject to any limitations.

• Commercial ones-?

Users can pay as they go to use APIs or pay membership fees.

3.0 How to Pick an API Testing Tool?

3.1 API Testing Tools: How can you choose a tool that will meet your needs? Here are a few things to be on the lookout for.

• The tool's compatibility with a continuous integration pipeline
• Ability to run tests in asynchronous mode to speed up execution
• Ability to bundle API requests or arrange them into collections, as well as an intuitive user interface
• Direct API testing tool API documentation generation capability

There are a number of API Testing tools like katalon studio, postman, apigee, jmeter, Rest-Assured, Assertible, Soap UI, Karate and many more.

3.2 Commonly used tool for API Testing:

Postman- Postman is an API Tool which helps developers to create, share, test and document APIs. It is used to make various types of HTTP requests?

Like GET, POST, PUT, PATCH.

Benefit of testing API using Postman Tool:?

• Available both for automated and exploratory testing
• Able to run on various platforms like windows, Mac, Linux
• Run Collection and Monitoring feature.
• With a user friendly and rich interface.

4.0 Testing of MuleSoft and Salesforce API?

4.1 MULESOFT - MuleSoft offers solutions that unlock the potential of every person in an organization so they can deliver business outcomes faster. MuleSoft has been part of the Salesforce family since 2018. Mule project is the development of an extensive set of automated tests: you get the security of a safety net catching any regression and incompatible modification in your apps before they ever leave your workstation.

We examine API testing from four perspectives:

1. ?Unit testing: It involves testing a single endpoint with a request.
2. Performance testing: Involves testing how the API is loading.
3. Security testing: Including attempts to penetrate the API's security layer.
4. Integration testing: Includes testing that connectivity between the API and other integration or third-party services is working. These are typically slow to run and not included in regular builds.

4.1.1 How do we run API tests in Mulesoft?

Mulesoft Anypoint is used for API Testing. Mulesoft Anypoint is an IDE used for designing and testing the application. Mulesoft is like the plumbing which includes MUnit, a unit and integration testing tool. This allows teams to perform in-depth automated testing of APIs and integrations. These tests can be run in a test environment or as part of your team's continuous integration and continuous delivery (CI/CD) process.

4.2 Salesforce is the top customer relationship management (CRM) platform in the world. Salesforce makes software that gives companies a complete view of their customer, so that they can build dipper relationship. Salesforce focuses on marketing, sales, commerce, and customer care, among other things. An innovation for managing all of your company's relationships and contacts with current and potential prospects is customer relationship management (CRM).

4.2.1 How do we run API tests in Salesforce?

We use Postman to test the Salesforce Rest API. Salesforce has many standard APIs available. You can also develop your own custom API. But what if you need to provide a demo for a third party to use your API? To do this, you can test the Salesforce Rest API with Postman. Postman is a general utility that is easy to configure.

5.0 CONCLUSION

APIs add new revenue channels to your business. It expands the reach of your business brand. By adding the external collaboration into your business using APIs your business can see skyrocketing growth.

Any application can benefit from API testing. If it is not thoroughly tested, invoking the application may result in issues. It is an essential and required test in the lifetime of software.