Get Recipe Schema from Website

get-recipe-schema.js

function getRecipeSchema(schema) {
    if(!schema) {
        const nodes = document.querySelectorAll('script[type="application/ld+json"]');
        let returnData;
        nodes.forEach(n => {
            const childSchema = JSON.parse(n.innerText);
            const data = getRecipeSchema(childSchema);
            if(data) returnData = data;
        });
        return returnData;
    }

    if(schema['@type'] && schema['@type'] === 'Recipe') return schema;

    if(schema['@graph']) {
      const recipeSchema = schema['@graph'].find(s => s['@type'] === 'Recipe');
      if(recipeSchema) return getRecipeSchema(recipeSchema);
    }

    return null;
}