Quick Start¶

Getting started with using Building Geometry API involves the following steps:

1. Create an account and a machine user
2. Create a JSON Web Token (JWT) by using the machine user credentials
3. Make API requests using the JWT

Create an account and a machine user¶

The Getting Started page documents the required steps to get a hold of the clientId, clientSecret and partitionId.

Create a token¶

Use the values described in the Authorization section to construct the Create Token request.

Example request¶

export CLIENT_ID=<YOUR_CLIENT_ID>
export CLIENT_SECRET=<YOUR_CLIENT_SECRET>

curl https://siemens-bt-015.eu.auth0.com/oauth/token \
  -H 'content-type: application/json' \
  -d "{
            \"client_id\":\"$CLIENT_ID\",
            \"client_secret\":\"$CLIENT_SECRET\",
            \"audience\":\"https://horizon.siemens.com\",
            \"grant_type\":\"client_credentials\"
      }"

To run this example yourself, set the CLIENT_ID and CLIENT_SECRET first.

Example response¶

{
  "access_token": "eyJ0eXAiOiUSJ9.eyJpc3MiOiJdGlhbHMifQ.MJpcxLfyOt",
  "token_type": "Bearer",
  "expires_in": 86400
}

The token, or JWT (JSON Web Token), is the value of the access_token property in the response. You can now use it by passing it in the Authorization header of any subsequent API requests. The expires_in property represents the number of seconds your token is valid, usually, the value corresponds to 24 hours. When this time has elapsed you will need to create a new token.

Now you have all you need to start using the API. As a last step of preparation set the token and partitionId as environmental variables. As an option, you can find your partitionId by using the Accounts API.

export PARTITION=<YOUR_PARTITION_ID>
export TOKEN=<YOUR_TOKEN>

Make API requests¶

This guide will take you through the steps you need to perform to retrieve the 2D geometry of a floor. As a prerequisite, it is recommended to lookup a floorId either in the Data Setup application or using the Structure API. In the rest of this document we assume that the floorId is 20cfac0b-d3ae-415e-af95-861d46e5fdda.

Find Floorplan¶

The first step to perform is to list the floorplans in your partition and specifying a filter for your floor. This you can do by performing the List Floorplans operation and a filter for the the representsFloor.data.id property.

curl -H "Authorization: Bearer $TOKEN" \
    "https://api.bpcloud.siemens.com/geometry/partitions/$PARTITION/floorplans?filter[representsFloor.data.id]=20cfac0b-d3ae-415e-af95-861d46e5fdda"

The response contains all floorplans for the specified floor (floorId). If you have a large number of buildings you may need to retrieve multiple pages, see Pagination.

Select the id property of one of the floorplans in the response and set it in an environmental variable. E.g. if the id is 8db4216d-61c5-4e79-8558-164aa179bfe9 then set it using the following command:

export FLOORPLAN_ID=8db4216d-61c5-4e79-8558-164aa179bfe9

Get Geometry¶

The next step is to fetch the geometry available in your floorplan. This is achieved by using the List Geometry operation.

curl -H "Authorization: Bearer $TOKEN" \
    "https://api.bpcloud.siemens.com/geometry/partitions/$PARTITION/floorplans/$FLOORPLAN_ID/geometry"

The response contains a GeoJSON-document that can be processed by your application or rendered by multiple commercial and open source components or online tools.

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