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Anything integration rules

This page is the detailed rule set referenced by the Anything starter prompt. It exists so the prompt you paste into the builder can stay short — the agent fetches this page and follows the rules below. It is intentionally kept out of the sidebar.

Anything builds React apps, so use the @ideal-postcodes/react component. It renders its own <input>, attaches the widget, and hands the selected address back through onAddressRetrieved — no <script> tags, useEffect loaders, CSS selectors, or controlled/uncontrolled juggling. The one thing left to get right is delivering the API key from a Saved Secret to the browser. The rules below cover both.

Install the package​

  • Install @ideal-postcodes/react and import the component: import { AddressFinder } from "@ideal-postcodes/react";. It pulls in @ideal-postcodes/address-finder automatically. Do not inject a <script> tag in JSX — React does not execute script tags rendered that way, and you don't need one: import the component from npm.

Wiring the widget​

  • Render the component and read the resolved address from onAddressRetrieved:

    import { AddressFinder } from "@ideal-postcodes/react";

    <AddressFinder
      apiKey={apiKey}
      onAddressRetrieved={(address) => {
        setForm({
          line_1: address.line_1,
          line_2: address.line_2,
          line_3: address.line_3,
          post_town: address.post_town,
          postcode: address.postcode,
          country: address.country,
        });
      }}
    />

  • The component draws its own search <input>. To reuse a styled input, pass it as a single child instead (wrap mode): <AddressFinder apiKey={apiKey} ...><input className="..." /></AddressFinder>.

  • Populate every other field from the onAddressRetrieved callback into React state. Those fields are controlled (value + onChange) as normal — the component never writes to them directly.

  • The stylesheet is auto-injected by default (injectStyle defaults to true), so the dropdown is styled out of the box. No separate CSS import is required.

API key​

  • Add a backend function at web/api/idpc-config/route.ts that reads the IDEAL_POSTCODES_API_KEY Saved Secret and returns it to the frontend. Fetch it on mount into state and pass it as the apiKey prop. Render <AddressFinder> only once the key has arrived. Do not hardcode the key.

Errors​

  • Pass onSearchError and onSuggestionError props. If the Ideal Postcodes API returns a 4xx error, surface the error's message to the user — do not swallow it.

Reference docs​