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Postman test scripts

Postman test scripts are JavaScript code snippets executed after a request receives a response, allowing users to automate the validation of API behavior and manage dynamic data.^[600-developer-tools-vscode-restclient-postman.md]

Data Extraction

Scripts typically begin by parsing the raw response body into a JavaScript object to facilitate data inspection.^[600-developer-tools-vscode-restclient-postman.md]

var responseData = JSON.parse(responseBody);

Once parsed, specific fields can be accessed directly for validation or logging purposes.^[600-developer-tools-vscode-restclient-postman.md]

Variable Management

A primary function of these scripts is to extract values from the response and store them as environment variables, making them available for subsequent requests.^[600-developer-tools-vscode-restclient-postman.md]

This is achieved using the pm.environment.set method:^[600-developer-tools-vscode-restclient-postman.md]

pm.environment.set("variableKey", value);

Common variables stored include authentication tokens (e.g., id, token) and user-specific identifiers like clientUuid or customerId.^[600-developer-tools-vscode-restclient-postman.md]

Debugging

The console.log function is frequently used within these scripts to output extracted values to the console, aiding in debugging and verifying that the correct data was captured.^[600-developer-tools-vscode-restclient-postman.md]

  • [[Postman]]
  • [[API Testing]]
  • [[Environment Variables]]

Sources

^[600-developer-tools-vscode-restclient-postman.md]