DHL API labels with ZPL
DHL's shipping APIs can return labels as ZPL encoded in Base64. Decode them, preview the label and catch problems before they reach the printer.
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Free, with no daily limit. A free account also saves your designs and gives you an API key.
How it fits
Ask for ZPL in your request's output settings, then decode the Base64 and open the label.
Example
const zpl = Buffer.from(document.content, "base64").toString("utf8");
Setting it up
Design the label in the designer with {{variables}}, save it, and copy its ID from the dashboard. Create an API key, then send your data to POST /v1/templates/{id}. The API docs have the details.
Questions
Which dpi should I render at?
The one the label was generated for, usually 203 or 300 dpi. A mismatch makes it the wrong size.
Do I need to install anything?
Not to render labels: it's an HTTP API. To send them to a printer on your network, run the [print agent](/print-agent/) next to it.
What does it cost?
A free key allows 20 labels a day. Pro is $29 a month for 100,000 labels, and Business $99 for 1,000,000. See [pricing](/pricing/).
Related
Need something we don't have yet?
A connector for your system, a label format or a new tool: tell us what you use and we'll look at building it.