Automating REST & SOAP APIs in Tosca

 Automating REST and SOAP APIs in Tricentis Tosca involves using Tosca's API testing module, which supports both API types out of the box. Below is a step-by-step guide to help you automate REST and SOAP APIs in Tosca.


🔧 General Setup

Before starting:


Ensure the Tosca API Scan module is installed.


Have access to the API specifications (WSDL for SOAP or Swagger/OpenAPI/URL for REST).


🧪 Automating REST API in Tosca

Step 1: Use API Scan Tool

Open Tosca Commander.


Go to Modules → API Testing → Launch API Scan.


Enter the REST endpoint URL (e.g., https://api.example.com/v1/users).


Select the HTTP method (GET, POST, PUT, DELETE, etc.).


Add headers, query parameters, and body as needed.


Click Send to test.


Step 2: Generate Tosca Module

Once the request is working in API Scan, click “Save as Module”.


This creates a Tosca Module that can be reused in TestCases.


Step 3: Create Test Case

Right-click on the newly created module → Create TestCase.


Fill in required inputs like parameters or JSON body values in the TestStep.


Add verifications (e.g., check status code 200, specific JSON values, etc.).


🌐 Automating SOAP API in Tosca

Step 1: Import WSDL

Open Tosca → API Scan.


Choose “Import from URL or File”, then select or enter the WSDL location.


Tosca will parse the WSDL and display all available services/operations.


Step 2: Send Request

Select the desired SOAP operation.


Fill in the required SOAP envelope details.


Click Send to test the request.


Step 3: Save as Module

Just like REST, save the request as a Tosca Module.


Step 4: Create Test Case

Create a TestCase from the SOAP module.


Modify the input parameters in the TestStepValues.


Add verifications to the response (e.g., check XML tags/values).


✅ Verification and Assertions

Tosca allows you to drag response fields (JSON or XML) into the Verification section.


You can verify:


HTTP Status code


Response values (e.g., name = John)


JSON/XML structure


🔄 Dynamic Data & Chaining

You can chain API calls using buffering:


Example: Save userID from the response of one API and use it in the next.


Use ={BufferName} syntax to refer to stored values.


🧩 Best Practices

Use TestSheet and TestCaseDesign for data-driven API tests.


Parameterize headers (e.g., Auth token).


Reuse common modules for maintainability.


Enable logging in API Scan for easier debugging.

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