Postman - 指导

Question

As part of my API call I need to pass in random ids in the body, currently I am creating the IDs using GUID in C# but its proving to be really time consuming as I need to test APIs in large batches. I am trying to figure out if it's possible to create a GUID in Postman on the fly and save them into a variable and pass it into require parameters through the API call.

I came across few resources like

1. What is {{$guid}} used for in Postman?

2. https://www.toolsqa.com/postman/guid-in-postman/

First issue I am having is that I want to create the ID without the dash, so instead of b3d27f9b-d21d-327c-164e-7fb6776f87b0 I want b3d27f9bd21d327c164e7fb6776f87b0 .

Secondly, I want to save these into a environment variable and pass it where it's required eg

In body as raw text I need to pass:

{
    "clientID":{{id}},
    "clientpassword":{{password}},
}

In the 'Tests', I currently have this script but I can't manage to get it working.

let id = {{$guid}};
let password = {{$guid}};

I have created 2 global variables called id and password

Also, currently I have these in the 'Tests' section of the postman, I see there is also a pre-request script. In which should I put this?

EDIT Also, another thing I am trying to do is, sometimes I need to search for a user by providing a client id in different places. Is it possible to put the id and password in one place where I can either update it manually or by running the guid, so that I don't need to update it in each API test I do but rather it should grab it from one place where I updated it.

Answer 1

You do something like this in the Pre-request Script sandbox:

let idGuid = pm.variables.replaceIn('{{$guid}}')
let passwordGuid = pm.variables.replaceIn('{{$guid}}')

pm.variables.set("id" , idGuid.replace(/-/g, ''))
pm.variables.set("password" , passwordGuid.replace(/-/g, ''))

These would then resolve the variables that you have placed within the request body .

Not the most efficient solution but it would create the values you would like.

There are also a number of other fake data variables available for you to use in the application:

https://learning.getpostman.com/docs/postman/scripts/postman_sandbox_api_reference/#dynamic-variables