> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blnkfinance.com/llms.txt
> Use this file to discover all available pages before exploring further.
# Tokenize field
> Tokenize a single identity field with the Python SDK.
export const CtaCallout = props => {
const {title, buttonLabel, href, trackingEvent, buttonTarget, rel = "noopener noreferrer", children} = props;
const handleCtaClick = () => {
if (typeof window === "undefined" || !trackingEvent) {
return;
}
try {
window.dispatchEvent(new CustomEvent("blnk:docs-cta", {
detail: {
name: trackingEvent,
href
}
}));
} catch {}
try {
window.posthog?.capture?.(trackingEvent, {
href
});
} catch {}
const gaPayload = {
cta_href: href
};
try {
window.gtag?.("event", trackingEvent, gaPayload);
} catch {}
try {
window.dataLayer = window.dataLayer || [];
window.dataLayer.push({
event: trackingEvent,
...gaPayload
});
} catch {}
};
const isExternal = typeof href === "string" && (/^https?:\/\//i).test(href);
const target = buttonTarget ?? (isExternal ? "_blank" : undefined);
const linkRel = isExternal ? rel : undefined;
return ;
};
Use `blnk.identity.tokenize_field` to tokenize one identity field.
```python blnk.identity.tokenize_field wrap theme={"system"}
response = blnk.identity.tokenize_field(
"idt_3b63c8da-af29-4cc3-ad38-df17d87456e6",
"EmailAddress",
)
```
| Field | Type | Description |
| :------ | :---- | :--------------------------------- |
| `id` | `str` | Identity ID. |
| `field` | `str` | PascalCase field name to tokenize. |
Check the response message, then use [get tokenized fields](/sdks/python/identities/get-tokenized-fields) to verify the field is protected.
```json 201 Created wrap theme={"system"}
{
"message": "Field tokenized successfully"
}
```
| Field | Type | Description |
| :-------- | :---- | :----------------------------------------- |
| `message` | `str` | Confirmation that the field was tokenized. |
***
## Related docs
Setup, secrets, and how tokenization works.
HTTP request and response schema.
***
## Need help?
We are very happy to help you make the most of Blnk, regardless of whether it is your first time or you are switching from another tool.
To ask questions or discuss issues, please [contact us](mailto:support@blnkfinance.com) or [join our Discord community](https://discord.gg/7WNv94zPpx).
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