Files
medusa-store/www/apps/book/app/advanced-development/admin/constraints/page.mdx
Shahed Nasser e9b5f76f9a docs: add Query documentation (#9079)
- Replace remote query documentation with new Query documentation
- Add redirect from old remote query to new query documentation
- Update remote query usages across docs to use new query usage.
2024-09-10 12:31:47 +00:00

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export const metadata = {
title: `${pageNumber} Admin Development Constraints`,
}
# {metadata.title}
This chapter lists some constraints of admin widgets and UI routes.
## Arrow Functions
Widget and UI route components must be created as arrow functions.
export const arrowHighlights = [
["2", "function", "Don't declare the widget / UI route as a function."],
["7", "() => ", "Use arrow functions when creating a widget / UI route."]
]
```ts highlights={arrowHighlights}
// Don't
function ProductWidget() {
// ...
}
// Do
const ProductWidget = () => {
// ...
}
```
---
## Widget Zone
A widget zone's value must be wrapped in double or single quotes. It can't be a template literal or a variable.
export const zoneHighlights = [
["3", "`product.details.before`", "Don't specify the value of `zone` as a template literal."],
["9", "ZONE", "Don't specify a variable as the value of `zone`."],
["14", `"product.details.before"`, "Wrap the value of `zone` in double or single quotes."]
]
```ts highlights={zoneHighlights}
// Don't
export const config = defineWidgetConfig({
zone: `product.details.before`,
})
// Don't
const ZONE = "product.details.after"
export const config = defineWidgetConfig({
zone: ZONE,
})
// Do
export const config = defineWidgetConfig({
zone: "product.details.before",
})
```