External Label Service
You can use an external web service to generate asset and location labels in homebox. This is useful if you have custom requirements for your labels and are happy to spin up a web service that can accept incoming requests and return an image file for homebox to use.
"Note"
This service is not called to generate sheets of labels accessed via the label generator function. It is used when creating labels from an item or location.
Configuration
The extenal service is configured using the HBOX_LABEL_MAKER_LABEL_SERVICE_URL enviroment variable.
Request
The service is called using an HTTP GET request. All parameters are passed as part of the query string.
Headers
User-Agent: Homebox-LabelMaker/1.0
Accept: image/*
Parameters
| Parameter | Type | Description | Value |
|---|---|---|---|
| AdditionalInformation | string | Extra free text to include on the label. | HBOX_LABEL_MAKER_ADDITIONAL_INFORMATION |
| ComponentPadding | int | Padding around label components (pixels). | HBOX_LABEL_MAKER_PADDING |
| DescriptionFontSize | float | Font size for the description text. | |
| DescriptionText | string | Descriptive text, can be multi-line. | Item name or "Homebox Location" |
| Dpi | float | Rendering resolution (dots per inch). | |
| DynamicLength | bool | Whether the label length should auto-adjust. | HBOX_LABEL_MAKER_DYNAMIC_LENGTH |
| Height | int | Label height in pixels. | HBOX_LABEL_MAKER_HEIGHT |
| Margin | int | Margin around the label in pixels. | HBOX_LABEL_MAKER_MARGIN |
| QrSize | int | Size of the QR code element in pixels. | |
| TitleFontSize | float | Font size for the title text. | |
| TitleText | string | Main label title (e.g. product code). | Asset ID or Location Name |
| URL | string | URL to be encoded into the QR code. | Generated based on the configured homebox URL and Asset / Location ID |
| Width | int | Label width in pixels. | HBOX_LABEL_MAKER_WIDTH |
Response
The external service should respond with the following specifications;
Size: Less than or equal to
HBOX_WEB_MAX_UPLOAD_SIZE(Default: 10Mb)Content-Type: Specified in the response header should be of the type image/*
Time: Within the time specified in
HBOX_LABEL_MAKER_LABEL_SERVICE_TIMEOUT(Default 30s)