Postman Scripts Reference

// Define a string containing a dynamic variable
let stringWithVariable = "Hello, {{username}}";

// Use the replaceIn method to replace the {{username}} placeholder
let realValueString = pm.variables.replaceIn(stringWithVariable);

// Output the replaced value
console.log(realValueString); // Output: "Hello, john_doe"

// Define a string containing a dynamic value expression
let stringWithVariable = "Hello, {{$person.fullName}}";

// Use the replaceInAsync method to replace the {{$person.fullName}}
let realValueString = await pm.variables.replaceInAsync(stringWithVariable);