Through postman, I'm trying to send a post request to create a post, but I get an error that is described in the question itself (error code - 405).

On top of all that, I've issued ALL permissions. What is the problem?

grade collection -

and schema.json from grade -

{
  "kind": "collectionType",
  "collectionName": "grades",
  "info": {
    "singularName": "grade",
    "pluralName": "grades",
    "displayName": "grade"
  },
  "options": {
    "draftAndPublish": true
  },
  "pluginOptions": {},
  "attributes": {
    "id_post": {
      "type": "biginteger"
    },
    "grade": {
      "type": "integer"
    }
  }
}

CodePudding user response：

from comments, it seems the problem is two extra invisible characters after the url:

this line makes them visible: [2022-12-21 14:38:39.382] http: POST /api/grades/ (4 ms) 40

notice the

remove them or copy paste clean url:

http://localhost:1337/api/grades