curl --request POST \
  --url https://{region}.affinda.com/v3/mapping_data_sources \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "My supplier list",
  "organization": "mewlkWEKL",
  "workspace": "mewlkWEKL",
  "keyProperty": "value",
  "displayProperty": "label",
  "values": [
    {}
  ],
  "schema": {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "label"
    ],
    "properties": {
      "label": {
        "type": "string"
      },
      "description": {
        "type": "string"
      }
    }
  }
}
'

import requests

url = "https://{region}.affinda.com/v3/mapping_data_sources"

payload = {
    "name": "My supplier list",
    "organization": "mewlkWEKL",
    "workspace": "mewlkWEKL",
    "keyProperty": "value",
    "displayProperty": "label",
    "values": [{}],
    "schema": {
        "type": "object",
        "$schema": "http://json-schema.org/draft-07/schema#",
        "required": ["label"],
        "properties": {
            "label": { "type": "string" },
            "description": { "type": "string" }
        }
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'My supplier list',
    organization: 'mewlkWEKL',
    workspace: 'mewlkWEKL',
    keyProperty: 'value',
    displayProperty: 'label',
    values: [{}],
    schema: {
      type: 'object',
      $schema: 'http://json-schema.org/draft-07/schema#',
      required: ['label'],
      properties: {label: {type: 'string'}, description: {type: 'string'}}
    }
  })
};

fetch('https://{region}.affinda.com/v3/mapping_data_sources', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "identifier": "mEFayXdO",
  "keyProperty": "value",
  "displayProperty": "value",
  "organization": "mewlkWEKL",
  "workspace": "mewlkWEKL",
  "name": "My supplier list",
  "schema": {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "label"
    ],
    "properties": {
      "label": {
        "type": "string"
      },
      "description": {
        "type": "string"
      }
    }
  }
}

{
  "type": "validation_error",
  "errors": [
    {
      "attr": "non_field_errors",
      "code": "unique",
      "detail": "This index name has already been used"
    }
  ]
}

{
  "type": "validation_error",
  "errors": [
    {
      "attr": "non_field_errors",
      "code": "unique",
      "detail": "This index name has already been used"
    }
  ]
}

{
  "type": "validation_error",
  "errors": [
    {
      "attr": "non_field_errors",
      "code": "unique",
      "detail": "This index name has already been used"
    }
  ]
}