Function findNodePath

packages/query/src/graphql/plugins/GetMetadataPlugin.ts:171–187

(nodes: readonly SelectionNode[], path: string[])

/* Recursively work down the AST to find a node with a matching path */
function findNodePath(nodes: readonly SelectionNode[], path: string[]): FieldNode | undefined {
  if (!path.length) {
    throw new Error('Path must have a length');
  }

  const currentPath = path[0];
  const found = nodes.find((node) => isFieldNode(node) && node.name.value === currentPath);

  if (found && isFieldNode(found)) {
    const newPath = path.slice(1);

    if (!newPath.length) return found;

    if (!found.selectionSet) return;
    return findNodePath(found.selectionSet.selections, newPath);
  }
}

export const GetMetadataPlugin = makeExtendSchemaPlugin((build: Build, options) => {
  const [schemaName] = options.pgSchemas;