---
title: List extensions
slug: topic-api/list-extensions
docTags: 
createdAt: 2024-06-10T16:49:07.008Z
---

{
  "id": "tgNPERgJp78CAZWXSy0mR",
  "type": "api-oas-v2",
  "data": {
    "method": "GET",
    "url": "https://api.catenda.com/opencde/bcf/3.0/projects/{topic-board-id}/extensions",
    "servers": [
      {
        "url": "https://api.catenda.com/opencde/bcf/3.0/projects/{topic-board-id}/extensions"
      }
    ],
    "name": "List extensions",
    "description": "List all the topic board extensions.",
    "contentType": "application/json",
    "request": {
      "pathParameters": [
        {
          "kind": "required",
          "name": "topic-board-id",
          "type": "string",
          "example": "e18a2d10-1595-4e52-a941-22d43bf8d7ad",
          "description": "Id of the topic board"
        }
      ],
      "headerParameters": [],
      "queryParameters": [],
      "bodyDataParameters": [],
      "formDataParameters": [],
      "oAuthParameters": [
        {
          "id": "Bearer",
          "name": "Bearer",
          "kind": "optional",
          "type": "http",
          "scheme": "bearer"
        }
      ]
    },
    "responses": [
      {
        "statusCode": "200",
        "description": "OK",
        "jsonExample": "",
        "isExpanded": true,
        "schema": [
          {
            "kind": "optional",
            "type": "object",
            "description": "",
            "customType": "topic-board-extensions",
            "schema": [
              {
                "name": "topic_type",
                "kind": "optional",
                "type": "array",
                "description": "List of topic types",
                "example": "[\"Info\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "Info",
                "itemDefault": ""
              },
              {
                "name": "topic_status",
                "kind": "optional",
                "type": "array",
                "description": "List of topic statuses",
                "example": "[\"Open\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "Open",
                "itemDefault": ""
              },
              {
                "name": "topic_label",
                "kind": "optional",
                "type": "array",
                "description": "List of topic labels",
                "example": "[\"Electrical\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "Electrical",
                "itemDefault": ""
              },
              {
                "name": "priority",
                "kind": "optional",
                "type": "array",
                "description": "List of topic priorities",
                "example": "[\"High\",\"Normal\",\"Low\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "",
                "itemDefault": ""
              },
              {
                "name": "users",
                "kind": "optional",
                "type": "array",
                "description": "List of BCF users with access to the topic board",
                "example": "[\"john@doe.com\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "john@doe.com",
                "itemDefault": ""
              },
              {
                "name": "stage",
                "kind": "optional",
                "type": "array",
                "description": "List of topic milestones",
                "example": "Phase one",
                "itemType": "object",
                "customType": "object[]",
                "itemExample": "",
                "itemDefault": ""
              },
              {
                "name": "project_actions",
                "kind": "optional",
                "type": "array",
                "description": "List of topic board actions",
                "example": "[\"createTopic\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "createTopic",
                "itemDefault": ""
              },
              {
                "name": "topic_actions",
                "kind": "optional",
                "type": "array",
                "description": "List of topic actions",
                "example": "[\"update\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "update",
                "itemDefault": ""
              },
              {
                "name": "comment_actions",
                "kind": "optional",
                "type": "array",
                "description": "List of topic comment actions",
                "example": "[\"update\"]",
                "itemType": "string",
                "customType": "string[]",
                "itemExample": "update",
                "itemDefault": ""
              },
              {
                "name": "bimsync_milestones",
                "kind": "optional",
                "type": "array",
                "description": "List of topic milestones",
                "example": "",
                "itemType": "object",
                "customType": "object[]",
                "schema": [
                  {
                    "name": "id",
                    "kind": "optional",
                    "type": "string",
                    "description": "Id of the milestone",
                    "example": "1da81d1409ec43ecbe4f9e55a79236d9"
                  },
                  {
                    "name": "name",
                    "kind": "optional",
                    "type": "string",
                    "description": "Name of the milestone",
                    "example": "Phase one"
                  }
                ]
              }
            ],
            "modelRef": "#/components/schemas/topic-board-extensions",
            "isExpanded": true
          }
        ]
      }
    ],
    "hasXCodeSamples": false,
    "examples": {
      "languages": [
        {
          "id": "Xt74scLsJRfw5f6Hl6kt4",
          "language": "curl",
          "label": "cURL",
          "code": "curl --request GET \\\n     --url https://api.catenda.com/opencde/bcf/3.0/projects/{topic-board-id}/extensions \\\n     --header 'accept: application/json'"
        },
        {
          "id": "H4yDpsN3QlET9PlJ1NqzS",
          "language": "javascript",
          "label": "javascript",
          "code": "var myHeaders = new Headers();\nmyHeaders.append(\"accept\", \"application/json\");\nmyHeaders.append(\"content-type\", \"application/json\");\n\nvar requestOptions = {\n   method: 'GET',\n   headers: myHeaders,\n   redirect: 'follow'\n};\n\nfetch(\"https://api.catenda.com/opencde/bcf/3.0/projects/{topic-board-id}/extensions\", requestOptions)\n   .then(response => response.text())\n   .then(result => console.log(result))\n   .catch(error => console.log('error', error));"
        },
        {
          "id": "EECDtyNZvtrm7wd81MasW",
          "language": "ruby",
          "label": "Ruby",
          "code": "require \"uri\"\nrequire \"json\"\nrequire \"net/http\"\n\nurl = URI(\"https://api.catenda.com/opencde/bcf/3.0/projects/{topic-board-id}/extensions\")\n\nhttps = Net::HTTP.new(url.host, url.port)\nhttps.use_ssl = true\n\nrequest = Net::HTTP::Get.new(url)\nrequest[\"accept\"] = \"application/json\"\nrequest[\"content-type\"] = \"application/json\"\n\nresponse = https.request(request)\nputs response.read_body\n"
        },
        {
          "id": "s-Cp4C9xG7qQlPU5ln-5i",
          "language": "python",
          "label": "Python",
          "code": "import requests\nimport json\n\nurl = \"https://api.catenda.com/opencde/bcf/3.0/projects/{topic-board-id}/extensions\"\n\npayload = {}\nheaders = {\n   'accept': 'application/json',\n   'content-type': 'application/json'\n}\n\nresponse = requests.request(\"GET\", url, headers=headers, data=payload)\n\nprint(response.text)\n"
        }
      ],
      "selectedLanguageId": "Xt74scLsJRfw5f6Hl6kt4"
    },
    "results": {
      "languages": [
        {
          "id": "P5EB9_FvZuvcMWsXnbjAb",
          "language": "200",
          "code": "// OK\n{\n  \"topic_type\": [\n    \"Info\"\n  ],\n  \"topic_status\": [\n    \"Open\"\n  ],\n  \"topic_label\": [\n    \"Electrical\"\n  ],\n  \"priority\": [\n    \"\"\n  ],\n  \"users\": [\n    \"john@doe.com\"\n  ],\n  \"stage\": [\n    {}\n  ],\n  \"project_actions\": [\n    \"createTopic\"\n  ],\n  \"topic_actions\": [\n    \"update\"\n  ],\n  \"comment_actions\": [\n    \"update\"\n  ],\n  \"bimsync_milestones\": [\n    {\n      \"id\": \"1da81d1409ec43ecbe4f9e55a79236d9\",\n      \"name\": \"Phase one\"\n    }\n  ]\n}"
        }
      ],
      "selectedLanguageId": "P5EB9_FvZuvcMWsXnbjAb"
    }
  },
  "children": [
    {
      "text": ""
    }
  ]
}