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\n Fetch Example
\n \n Download Excel\n \n \n\n\n\n\n```\n\n## Using callbacks\n\nwhen using callback functions in the fields description, you have three option to retrieve data:\n\n- **field: 'path.to.nested.property'** you can retrieve a specific value using the nested property notation.\n\n```js\n json_fields: {\n 'Complete name': 'name',\n 'City': 'city',\n 'Telephone': 'phone.mobile',\n 'Telephone 2' : {\n field: 'phone.landline',\n callback: (value) => {\n return `Landline Phone - ${value}`;\n }\n },\n },\n```\n\n- **field: 'define.nested.object'** you can retrieve a nested object too.\n\n```js\n json_fields: {s\n 'Complete name': 'name',\n 'City': 'city',\n 'Telephone': 'phone.mobile',\n 'Telephone 2' : {\n field: 'phone',\n callback: (value) => {\n return `Landline Phone - ${value.landline}`;\n }\n },\n },\n```\n\n- Or **get the whole row** if field is undefined.\n\n```js\n json_fields: {\n 'Complete name': 'name',\n 'City': 'city',\n 'Telephone': 'phone.mobile',\n 'Telephone 2' : {\n callback: (value) => {\n return `Landline Phone - ${value.phone.landline}`;\n }\n },\n },\n```\n\n# Support\n\nIf this helped you in any way, you can contribute to this project for long term survival by supporting me:\n\n### [💜 Support my open-source work on GitHub](https://github.com/sponsors/pratik227)\n\nBe sure to check out my sponsor page.\n\nThank you so much!!!\n\n![](\"download_icon.png\"){kind=icon}
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