API Automation using POSTMAN and running tests using Newman

How to run Postman Collection using Postman tool?

1. Open Runner
2. Drag and Drop your collection
3. Select the tests
4. Hit Run button

How to run Postman Collection using Newman CLI tool?

1. Open Terminal/CMD
2. Install newman npm install -g newman
3. Go to root path of the project
4. Enter command newman run TheCatAPI.postman_collection.json --environment TheCatAPI_Env.postman_environment.json
5. CLI will show below results

How to generate HTML report using npm newman-reporter-htmlextra with Newman?

1. Open Terminal/CMD
2. Install reporters npm install -g newman-reporter-htmlextra
3. Go to root path of the project
4. Enter command newman run TheCatAPI.postman_collection.json --environment TheCatAPI_Env.postman_environment.json -r htmlextra --reporter-htmlextra-export .\TestResults\TestResult.html

How to generate CSV report using npm newman-reporter-csv with Newman?

1. Open Terminal/CMD
2. Install reporters npm install -g newman-reporter-csv
3. Go to root path of project
4. Enter command newman run TheCatAPI.postman_collection.json -r csv --reporter-csv-export .\testResults\TestResult.csv

Troubleshooting

Issue #1: When you run Postman collection using newman you may see error:

File C:\Users\admin\AppData\Roaming\npm\newman.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.

Solution: Follow step 1 to 3 given on https://www.c-sharpcorner.com/article/how-to-fix-ps1-can-not-be-loaded-because-running-scripts-is-disabled-on-this-sys/