PowerShell Invoke-WebRequest | API Call - json

Question

I'm using Gitea and I try to create a user using an API call in PowerShell:
Testing Plateforme : https://try.gitea.io/
API URL : https://try.gitea.io/api/swagger
API Token : 3bb81a498393f4af3d278164b5755fc23b74b785
Username : Will-stackoverflow
Password : willwill
Here it's what I have tried so far :
# Filling my var with some data
$username="myuser"
$email="myuser#mydomain.com"
$full_name="My User"
$password="P#$$w0rd"
# Building a hash with my data
$hash = #{
Email = $($email);
full_name = $($full_name);
login_name = $($username);
Password = $($password);
send_notify = "false";
source_id = 0;
Username = $($username)
}
# Converting my hash to json format
$JSON = $hash | convertto-json
# Displaying my JSON var
$JSON
Invoke-WebRequest -uri "http://try.gitea.io/api/v1/admin/users?access_token=3bb81a498393f4af3d278164b5755fc23b74b785" -Method POST -Body $JSON
My $JSON var is fed properly :
{
"Password": "P#w0rd",
"full_name": "My User",
"Username": "myuser",
"Email": "myuser#mydomain.com",
"source_id": 0,
"login_name": "myuser",
"send_notify": "false"
}
But there is the result (from my prod environement as I can't get it to work at all using the online plateforme) :
To me it sounds like the fields "Username", "Email" and "Password" are required, but they are filled in my displayed JSON. What am I missing or doing wrong ?
EDIT :
Adding the -ContentType 'application/json' parameter to the Invoke-WebRequest command as suggested by Theo :

Answer 1

Looking at the Swagger UI site, it seems to me the json must contain properties in lower-caps only
{
"email": "myuser#mydomain.com",
"full_name": "My User",
"login_name": "myuser",
"password": "P#w0rd",
"send_notify": $true,
"source_id": 0,
"username": "myuser"
}
Also, according to the Swagger site, you need to state the -ContentType.
Your code would look like this:
# Filling my var with some data
$username="myuser"
$email="myuser#mydomain.com"
$full_name="My User"
$password="P#$$w0rd"
# Building a hash with my data
$hash = #{
email = $($email); # string
full_name = $($full_name); # string
login_name = $($username); # string
password = $($password); # string
send_notify = $false; # boolean
source_id = 0; # int
username = $($username) # string
}
# Converting my hash to json format
$JSON = $hash | ConvertTo-Json
# Displaying my JSON var
$JSON
# just to make it somewhat easier on the eyes
$token = "3bb81a498393f4af3d278164b5755fc23b74b785"
$url = "http://try.gitea.io/api/v1/admin/users?access_token=$token"
Invoke-WebRequest -uri $url -Method POST -Body $JSON -ContentType 'application/json'