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To execute a collection of requests in Postman, you can follow these steps:. 1. Create a Collection. - Open Postman: Launch the Postman application. - Create a New Collection: Click on the "Collections" tab in the left sidebar, then click the "New Collection" button. - Name Your Collection: Give your collection a meaningful name and add a description if necessary. 2. Add Requests to the Collection. - Create Requests: For each API request you want to include, create a new request by clicking the "New" button and selecting "Request". - Save Requests: After configuring each request (method, URL, headers, body, etc.), save it to the collection you created. 3. Execute the Collection. - Open the Collection Runner: Click on the "Runner" button (usually found at the top left of the Postman interface). - Select Your Collection: In the Collection Runner window, select the collection you want to run. - Configure Options: You can set options such as the number of iterations, delay between requests, and whether to run with a specific environment. - Run the Collection: Click the "Run" button to execute all requests in the collection sequentially. 4. View Results. - Check Results: After the execution, you can view the results for each request, including status codes, response times, and response bodies. 5. (Optional) Use Newman for Command Line Execution. If you want to run your collection from the command line, you can use Newman, Postman's command-line companion. # Installation of Newman. ```bash. npm install -g newman. ```. # Running a Collection with Newman. ```bash. newman run . ```. - Replace `` with the path to your exported collection file. Example Command. ```bash. newman run my_collection.json -e my_environment.json. ```. - This command runs the collection `my_collection.json` with the specified environment `my_environment.json`. Conclusion. Using Postman’s built-in Collection Runner or Newman allows you to efficiently execute multiple API requests in a structured manner. This is particularly useful for testing APIs and automating workflows. ---.

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