Scripting

In Thunder Client, you can write custom scripts for advanced use cases like setting environment variables, extracting data from responses, test assertions, and more.

Inline Scripting

• JavaScript code can be written directly within Thunder Client views.
• You have the flexibility to write scripts in the following contexts:
  • Request Level
  • Folder Level
  • Collection Level
• Additionally, scripts can be authored in Pre-Request and Post-Request scripts.

Pre-Request Script

• Run the pre-request script from the Pre Run -> Scripting tab. This is useful for setting env variables.

Post-Request Script

• Run the post-request script from the Tests -> Scripting tab.
• Useful for clean-up tasks, setting environment variables from the response, and assertions.

Logs

• You can log messages to the Output Window using console.log in the script.
• For more details, please refer to the Logs section.

Convert Postman Script

• We provide a guide to convert Postman scripts to Thunder Client scripts.
• For more details, please refer to the Convert Postman Script section.