update

Author: kien-ngo

apps/portal/src/app/react/v5/sidebar.tsx

@@ -358,6 +358,20 @@ export const sidebar: SideBar = {
                 icon: <CodeIcon />,
               })),
             },
+            {
+              name: "Token",
+              isCollapsible: true,
+              links: [
+                "TokenProvider",
+                "TokenName",
+                "TokenSymbol",
+                "TokenIcon",
+              ].map((name) => ({
+                name,
+                href: `${slug}/${name}`,
+                icon: <CodeIcon />,
+              })),
+            },
           ],
         },
         {

packages/thirdweb/src/exports/react.ts

@@ -235,3 +235,21 @@ export {
   AccountAvatar,
   type AccountAvatarProps,
 } from "../react/web/ui/prebuilt/Account/avatar.js";
+
+// Token
+export {
+  TokenProvider,
+  type TokenProviderProps,
+} from "../react/web/ui/prebuilt/Token/provider.js";
+export {
+  TokenName,
+  type TokenNameProps,
+} from "../react/web/ui/prebuilt/Token/name.js";
+export {
+  TokenSymbol,
+  type TokenSymbolProps,
+} from "../react/web/ui/prebuilt/Token/symbol.js";
+export {
+  TokenIcon,
+  type TokenIconProps,
+} from "../react/web/ui/prebuilt/Token/icon.js";

packages/thirdweb/src/react/web/ui/prebuilt/Token/icon.tsx

@@ -0,0 +1,161 @@
+import { type UseQueryOptions, useQuery } from "@tanstack/react-query";
+import type { JSX } from "react";
+import { getChainMetadata } from "../../../../../chains/utils.js";
+import { NATIVE_TOKEN_ADDRESS } from "../../../../../constants/addresses.js";
+import { getContract } from "../../../../../contract/contract.js";
+import { getContractMetadata } from "../../../../../extensions/common/read/getContractMetadata.js";
+import { resolveScheme } from "../../../../../utils/ipfs.js";
+import { useTokenContext } from "./provider.js";
+
+export interface TokenIconProps
+  extends Omit<React.ImgHTMLAttributes<HTMLImageElement>, "src"> {
+  /**
+   * This prop can be a string or a (async) function that resolves to a string, representing the icon url of the token
+   * This is particularly useful if you already have a way to fetch the token icon.
+   */
+  iconResolver?: string | (() => string) | (() => Promise<string>);
+  /**
+   * This component will be shown while the avatar of the icon is being fetched
+   * If not passed, the component will return `null`.
+   *
+   * You can pass a loading sign or spinner to this prop.
+   * @example
+   * ```tsx
+   * <TokenIcon loadingComponent={<Spinner />} />
+   * ```
+   */
+  loadingComponent?: JSX.Element;
+  /**
+   * This component will be shown if the request for fetching the avatar is done
+   * but could not retreive any result.
+   * You can pass a dummy avatar/image to this prop.
+   *
+   * If not passed, the component will return `null`
+   *
+   * @example
+   * ```tsx
+   * <TokenIcon fallbackComponent={<DummyImage />} />
+   * ```
+   */
+  fallbackComponent?: JSX.Element;
+
+  /**
+   * Optional query options for `useQuery`
+   */
+  queryOptions?: Omit<UseQueryOptions<string>, "queryFn" | "queryKey">;
+}
+
+/**
+ * This component tries to resolve the icon of a given token, then return an image.
+ * @returns an <img /> with the src of the token icon
+ *
+ * @example
+ *
+ * ### Basic usage
+ * ```tsx
+ * import { TokenProvider, TokenIcon } from "thirdweb/react";
+ *
+ * <TokenProvider address="0x-token-address" chain={chain} client={client}>
+ *   <TokenIcon />
+ * </TokenProvider>
+ * ```
+ *
+ * Result: An <img /> component with the src of the icon
+ * ```html
+ * <img src="token-icon.png" />
+ * ```
+ *
+ * ### Override the icon with the `iconResolver` prop
+ * If you already have the icon url, you can skip the network requests and pass it directly to the TokenIcon
+ * ```tsx
+ * <TokenIcon iconResolver="/usdc.png" />
+ * ```
+ *
+ * You can also pass in your own custom (async) function that retrieves the icon url
+ * ```tsx
+ * const getIcon = async () => {
+ *   const icon = getIconFromCoinMarketCap(tokenAddress, etc);
+ *   return icon;
+ * };
+ *
+ * <TokenIcon iconResolver={getIcon} />
+ * ```
+ *
+ * ### Show a loading sign while the icon is being loaded
+ * ```tsx
+ * <TokenIcon loadingComponent={<Spinner />} />
+ * ```
+ *
+ * ### Fallback to a dummy image if the token icon fails to resolve
+ * ```tsx
+ * <TokenIcon fallbackComponent={<img src="blank-image.png" />} />
+ * ```
+ *
+ * ### Usage with queryOptions
+ * TokenIcon uses useQuery() from tanstack query internally.
+ * It allows you to pass a custom queryOptions of your choice for more control of the internal fetching logic
+ * ```tsx
+ * <TokenIcon queryOptions={{ enabled: someLogic, retry: 3, }} />
+ * ```
+ */
+export function TokenIcon({
+  iconResolver,
+  loadingComponent,
+  fallbackComponent,
+  queryOptions,
+  ...restProps
+}: TokenIconProps) {
+  const { address, client, chain } = useTokenContext();
+  const iconQuery = useQuery({
+    queryKey: ["_internal_token_icon_", chain.id, address] as const,
+    queryFn: async () => {
+      if (typeof iconResolver === "string") {
+        return iconResolver;
+      }
+      if (typeof iconResolver === "function") {
+        return iconResolver();
+      }
+      if (address.toLowerCase() === NATIVE_TOKEN_ADDRESS.toLowerCase()) {
+        const possibleUrl = await getChainMetadata(chain).then(
+          (data) => data.icon?.url,
+        );
+        if (!possibleUrl) {
+          throw new Error("Failed to resolve icon for native token");
+        }
+        return resolveScheme({ uri: possibleUrl, client });
+      }
+
+      // Try to get the icon from the contractURI
+      const contractMetadata = await getContractMetadata({
+        contract: getContract({
+          address,
+          chain,
+          client,
+        }),
+      });
+
+      if (
+        !contractMetadata.image ||
+        typeof contractMetadata.image !== "string"
+      ) {
+        throw new Error("Failed to resolve token icon from contract metadata");
+      }
+
+      return resolveScheme({
+        uri: contractMetadata.image,
+        client,
+      });
+    },
+    ...queryOptions,
+  });
+
+  if (iconQuery.isLoading) {
+    return loadingComponent || null;
+  }
+
+  if (!iconQuery.data) {
+    return fallbackComponent || null;
+  }
+
+  return <img src={iconQuery.data} alt={restProps.alt} />;
+}