Bad Request Error encountered with GraphQL DotNet - asp.net-core

Question

I'm using GraphQL.Net and getting the following when trying to use the API.
{
"version": {
"major": 1,
"minor": 1,
"build": -1,
"revision": -1,
"majorRevision": -1,
"minorRevision": -1
},
"content": {
"headers": [
{
"key": "Content-Type",
"value": [
"application\/json; charset=utf-8"
]
}
]
},
"statusCode": 400,
"reasonPhrase": "Bad Request",
"headers": [
],
"requestMessage": {
"version": {
"major": 2,
"minor": 0,
"build": -1,
"revision": -1,
"majorRevision": -1,
"minorRevision": -1
},
"content": null,
"method": {
"method": "GET"
},
"requestUri": null,
"headers": [
],
"properties": {
}
},
"isSuccessStatusCode": false
}
It is quite vague as to what the cause of the error is. Is there something wrong with the setup of my queries / types? Or is it in my request? Is it about authentication?
I'm not sure which code to share, so I uploaded my API library at: https://github.com/jonasarcangel/GraphQLIssue
Request payload is as follows (using Apollo Angular):
{
"operationName": "configsQuery",
"variables": {
"id": "",
"module": "admin\/configs",
"name": "canActivate"
},
"query": "query configsQuery($id: String, $module: String, $name: String) {\n configs(id: $id, module: $module, name: $name) {\n id\n createdBy\n createdDate\n updatedBy\n updatedDate\n name\n module\n value\n __typename\n }\n}\n"
}