How can we use Custom Javascript libraries in our scripts with an exam

1.	How can we use Custom Javascript libraries in our scripts with an example?
Answer» Postman provides a lot of built-in tools and libraries that we can USE to add in our pre-request or POST-request scripts or test CASES. Let us take the example of using the moment.js library. It provides a lot of useful functions to format data around time. Consider that we have a POST request that needs to specify the created date to the user which expects the format “DD/MM/YYYY”. We can use the moment library to perform this using a single line of code. In our pre-request script, we need to add the below lines of code to get the correctly formatted data and then store that in an environment variable: var moment = require('moment');pm.environment.set('createdDate',moment().format('DD/MM/YYYY')); There are a lot of other useful libraries LIKE crypto.js that are useful for converting text to encrypted values which can further be used ANYWHERE in the request body.

How can we use Custom Javascript libraries in our scripts with an example?

Answer»

Postman provides a lot of built-in tools and libraries that we can USE to add in our pre-request or POST-request scripts or test CASES. Let us take the example of using the moment.js library. It provides a lot of useful functions to format data around time. Consider that we have a POST request that needs to specify the created date to the user which expects the format “DD/MM/YYYY”. We can use the moment library to perform this using a single line of code. In our pre-request script, we need to add the below lines of code to get the correctly formatted data and then store that in an environment variable:

var moment = require('moment');pm.environment.set('createdDate',moment().format('DD/MM/YYYY'));

There are a lot of other useful libraries LIKE crypto.js that are useful for converting text to encrypted values which can further be used ANYWHERE in the request body.

How can we use Custom Javascript libraries in our scripts with an example?

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