How to call Invoke-RestMethod in powershell for each JSON entry - powershell

Question

$person = #{
"Username"="Test3";
"Password"="Test3";
}
$json = $person | ConvertTo-Json
Invoke-RestMethod -Method POST -Header $Header -ContentType "application/json" -uri "http://testa.katest.com/CreateUsers/api/v1.0/Users" -Body $json
Above powershell script works perfect and also creates the username Test3 in the system:
But If I would like to call this Invoke-RestMethod for creating multiple users at the same time - What command should I use?

Answer 1

Since I can only assume information about your API, I can offer two potential ways to do this.
If the POST supports a JSON array, you can do the following:
$persons = #{
"Username"="Test3";
"Password"="Test3";
},#{
"Username"="Test4";
"Password"="Test4";
}
$json = $persons | ConvertTo-Json
Invoke-RestMethod -Method POST -Header $Header -ContentType "application/json" -uri "http://testa.katest.com/CreateUsers/api/v1.0/Users" -Body $json
If POST only supports one json with one user, you can do the following:
$persons = #{
"Username"="Test3";
"Password"="Test3";
},#{
"Username"="Test4";
"Password"="Test4";
}
foreach ($person in $persons) {
$json = $person | ConvertTo-Json
Invoke-RestMethod -Method POST -Header $Header -ContentType "application/json" -uri "http://testa.katest.com/CreateUsers/api/v1.0/Users" -Body $json
}
Each method centers around creating an array of hash tables. Each hash table has a key-value pair for Username and Password. Then you can choose to either iterate or not before converting to JSON.