hydrogen-sanity/dist/vite/index.js

Sanity.io toolkit for Hydrogen

function sanity() {
  return {
    name: "sanity",
    enforce: "pre",
    // Run before other plugins to intercept @sanity/react-loader resolution
    async config() {
      return {
        envPrefix: ["SANITY_STUDIO_"],
        ssr: {
          optimizeDeps: {
            // Pre-bundle Sanity dependencies for better SSR performance
            include: ["@sanity/client"]
          },
          // Prevent externalization of Sanity dependencies to ensure proper ESM resolution
          noExternal: ["@sanity/client"]
        }
      };
    },
    configResolved(resolvedConfig) {
      const ssrConditions = [
        "es2015",
        ...(resolvedConfig.ssr?.resolve?.conditions || []).filter(
          (condition) => condition !== "es2015" && condition !== "node" && condition !== "require"
        )
      ];
      if (resolvedConfig.ssr?.resolve) {
        resolvedConfig.ssr.resolve.conditions = ssrConditions;
      }
      if (resolvedConfig.environments?.ssr?.resolve?.conditions) {
        const envConditions = [
          "es2015",
          ...resolvedConfig.environments.ssr.resolve.conditions.filter(
            (condition) => condition !== "es2015" && condition !== "node" && condition !== "require"
          )
        ];
        resolvedConfig.environments.ssr.resolve.conditions = envConditions;
      }
    },
    // Surgically redirect @sanity/react-loader to its server bundle during SSR
    // The browser bundle doesn't export server-only functions like setServerClient/loadQuery
    // Without this, Hydrogen/Oxygen's 'browser' condition causes the wrong bundle to load
    async resolveId(id, importer, options) {
      if (id === "@sanity/react-loader" && options.ssr) {
        const pkgResolved = await this.resolve("@sanity/react-loader/package.json", importer, {
          ...options,
          skipSelf: true
        });
        if (pkgResolved) {
          const serverBundle = pkgResolved.id.replace("/package.json", "/dist/index.js");
          return { id: serverBundle };
        }
      }
      return null;
    }
  };
}

export { sanity };
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