Using variables in a nested loop in Postman Flow

[amitaman001]

Hello,

I have found Postman flow to be quite interesting and am using it to test a workflow.

The problem is as below(added labels in screenshot):

1. At Level 1, I have a list of projects, each having unique project_id. I am looping each of the project_id using Loop 1 to the users within that project

2. At level 2, I have the list of user_id for the respective project. I am looping through each of the users using Loop 2 to reach Level 3.

3. At Level 3, I would need both - the project_id and the user_id to send an API request.

However, I am not able to get the corresponding project_id at Level 3. Could you please suggest a solution ?

Thanks in advance!

[flows-daniel (Daniel Kimmelmann)]

Hi @amitaman001

Welcome to the forums!

I recreated your flow with some mock servers.

You can do the following:

The evaluate block (using TypeScript, which you can enable by selecting it from the drop down that says “FQL” in the top right of the block) can map the projectId to the userIds. They can be accumulated in a collect block which can then be flattened so you have a single list to iterate through with a for block for level 3 which will have a userId and projectId pair.

Let me know if you run into any issues.

[amitaman001]

Thanks @flows-daniel for the prompt response. It worked perfectly !