<\/figure>\n\n\n\nIn FlutterFlow, navigate to the API call tab located on the left side of the interface. Here, you’ll add the URL along with the Anon keys to configure the API call.<\/p>\n\n\n\n
First, ensure you have the URL endpoint of your Supabase table API. Then, incorporate the Anon keys in the headers section as follows:<\/p>\n\n\n\n
1. URL: Paste the URL endpoint of your Supabase table API.<\/p>\n\n\n\n
2. Headers: Add the following headers to authenticate the API call:<\/p>\n\n\n\n
– Key: `apikey`<\/p>\n\n\n\n
Value: Your Supabase client anon key<\/p>\n\n\n\n
– Key: `Authorization`<\/p>\n\n\n\n
Value: `Bearer` followed by your Supabase client anon key<\/p>\n\n\n\n <\/figure>\n\n\n\nAfter adding all the necessary details in FlutterFlow, proceed to the “Response” section and initiate a test of the API call.<\/p>\n\n\n\n
Here’s how to do it:<\/strong><\/p>\n\n\n\n1. Response Tab: Locate the “Response” tab within FlutterFlow.<\/p>\n\n\n\n
2. Test API Call: Click on the option to test the API call. This action will trigger the API request to the specified endpoint with the provided headers and parameters.<\/p>\n\n\n\n <\/figure>\n\n\n\nIn the provided illustration, the results were as anticipated: 10 records were returned from a dataset exceeding 1000 entries. <\/p>\n\n\n\n
This outcome was achieved by setting the LIMIT parameter in the query to 10. Additionally, the records commenced from number 11 due to the offset being set to 10. <\/p>\n\n\n\n
Consequently, this API result effectively skipped over record number 10, assuming it had been previously called. As a result, the retrieval process initiated from record number 11 onwards.<\/p>\n\n\n\n <\/figure>\n\n\n\nBefore proceeding to the next step, let’s make the limit and offset parameters dynamic. This will enable us to pass any values we desire to make the pagination feature flexible. To achieve this, follow these steps:<\/p>\n\n\n\n
1. Navigate to the query parameters section in FlutterFlow.<\/p>\n\n\n\n
2. Add the limit and offset variables as options.<\/p>\n\n\n\n
3. For the “select variable” option, click on “Create new variable.”<\/p>\n\n\n\n <\/figure>\n\n\n\nTo set the variable types to string and save the changes to the API call, follow these steps:<\/p>\n\n\n\n
1. Navigate to the query parameters section in FlutterFlow.<\/p>\n\n\n\n
2. Set the variable types for both limit and offset parameters to string.<\/p>\n\n\n\n
3. Save the changes to the API call settings.<\/p>\n\n\n\n
Once you’ve saved the changes, proceed to the response and test section. Here, you can experiment by inputting different numbers in the offset and limit parameters. <\/p>\n\n\n\n
This simulation allows you to observe how dynamic data affects the pagination process, enabling you to fine-tune and optimize the pagination feature accordingly. <\/p>\n\n\n\n <\/figure>\n\n\n\nStep Three: Connect your Api call to a ui flow<\/strong><\/h3>\n\n\n\nIn this step, we’ll explore a bonus form of pagination known as infinite scrolling with Supabase. We’ll learn how to apply this pagination technique to a page and then proceed to implement our API call pagination in FlutterFlow.<\/p>\n\n\n\n
Let’s get started!<\/p>\n\n\n\n
Pagination with infinite scrolling <\/strong><\/h4>\n\n\n\n <\/figure>\n\n\n\n Firstly, define the JSON paths that you want to represent in your app from the API call, specify the fields you wish to extract from the response JSON. In this example, we want to retrieve the “id” and “name” fields from the paginate Data table.<\/p>\n\n\n\n <\/figure>\n\n\n\nNext on a blank page add a listview and because our data from the api is just a string we added text inside the listview. <\/p>\n\n\n\n
Then you can go to the top right corner on the database section and add the api call we just added and make sure you check the infinite scroll option. <\/p>\n\n\n\n <\/figure>\n\n\n\n
<\/figure><\/div>\n\n\nTake note that out of the box when you enable pagination flutterflow gives you default information like Nextpage number, number of loaded items etc. <\/p>\n\n\n\n <\/figure>\n\n\n\nTo complete the API call, we need to pass the limit and offset parameters. For the limit, we’ll set it to 10 to retrieve 10 records at a time. <\/p>\n\n\n\n
As for the offset parameter, when implementing infinite scroll in FlutterFlow, the platform provides a “next page index” parameter that automatically tracks the specific page the user is on when scrolling, based on a set of x values.<\/p>\n\n\n\n
To address this, we’ve devised a custom function (which was created with ai) that takes an integer (the next page index) and multiplies it by the number of expected results (in this example 10) to determine the value for the offset parameter. <\/p>\n\n\n\n
This approach ensures that the API call fetches the correct subset of data corresponding to the user’s scroll position.<\/p>\n\n\n\n
Note: Infinite scroll functionality allows users to scroll infinitely within a list or page. However, rows of data are only retrieved and displayed to the user as they scroll past the already returned rows, refreshing the listview dynamically. <\/p>\n\n\n\n
This approach ensures that users receive new rows of data gradually as they scroll, rather than loading all the data at once, thereby enhancing the user experience and optimizing performance.<\/p>\n\n\n\n <\/figure>\n\n\n\n <\/figure>\n\n\n\nClick on the listview and then on the top right head over to the \u201cGenerate Children from Variable Section\u201d and we will need to connect the api response to the variable and then give the variable a name. (essentially this is an important step when working with api calls )<\/p>\n\n\n\n <\/figure>\n\n\n\n <\/figure>\n\n\n\nOnce you’ve completed the implementation, you can connect the text on your page to the API results that we defined earlier. <\/p>\n\n\n\n
This connection enables your app to dynamically display data fetched from the API as users scroll through the page. Preview your app to witness the infinite scroll and pagination feature in action.<\/p>\n\n\n\n
If you’re a beginner and find certain sections challenging to understand, consider referring to FlutterFlow’s guide on API calls. <\/p>\n\n\n\n
This resource can provide additional clarity and insights into the process, helping you better grasp the concepts involved in integrating API functionality into your FlutterFlow project.<\/p>\n\n\n\n <\/figure>\n\n\n\n <\/figure>\n\n\n\nPage by page pagination<\/strong><\/h4>\n\n\n\n <\/figure>\n\n\n\nFollowing the UI design provided, we’ll incorporate a row containing “Back” and “Previous” buttons. <\/p>\n\n\n\n
Utilizing the same API call and ListView with text inside, the desired functionality entails that when the “Next” button is clicked, a new set of 10 records will be displayed above the previously viewed items. <\/p>\n\n\n\n
Conversely, clicking on the “Previous” button should return a set of 10 rows that were previously viewed. <\/p>\n\n\n\n <\/figure>\n\n\n\n To manage this feature we will remove the infinite scroll check on the listview to disable it and with that we will need a new way to track the page number the user is currently on instead of the Next page index that the infinite scroll provided us so we will create a page state (integer) to substitute and manage the current page number> Here’s a rundown of the logic, Next button increments the \u201cpageNumber\u201d page state to increase the page number <\/p>\n\n\n\n <\/figure>\n\n\n\nand the previous button decrements the PageNumber. <\/p>\n\n\n\n <\/figure>\n\n\n\nNext, we will utilize the same custom function for the offset, replacing the NextpageIndex with the pageNumber page state. To recap, the custom function multiplies the page number by the limit number (which is 10 in this example). <\/p>\n\n\n\n
For instance, if the pageNumber is 0 and the limit number is 10, the function will return 0 as the offset value. <\/p>\n\n\n\n
This signifies that the API call should return rows less than 0, indicating that we are on the first page. Subsequently, we can increment the page number until we exhaust all records.<\/p>\n\n\n\n
This approach ensures dynamic pagination by adjusting the offset based on the current page number and limit, allowing seamless navigation through the dataset. <\/p>\n\n\n\n <\/figure>\n\n\n\nTip:<\/strong> Create error handling scenarios like disabling your previous button when the pageNumber is equal to o or showing an error message on screen when there are no rows returned. <\/p>\n\n\n\nFinally, you can preview the application in test mode to thoroughly test out the page-by-page pagination functionality. <\/p>\n\n\n\n
This allows you to validate that the pagination features work as intended and provides an opportunity to identify and address any potential issues or improvements.<\/p>\n\n\n\n
Congratulations! You have now learned how to apply pagination to your FlutterFlow x Supabase applications. <\/p>\n\n\n\n
Happy coding and enjoy building your dynamic and interactive applications with FlutterFlow and Supabase!<\/p>\n","protected":false},"excerpt":{"rendered":"
Pagination, in simple terms, involves breaking down a large dataset into smaller, more manageable pages. This process offers several advantages, including cost savings when handling numerous users accessing your application and preventing overwhelming users with excessive data. As of the time of writing, while there are abundant resources covering pagination with Firebase, information regarding pagination…<\/p>\n","protected":false},"author":1,"featured_media":616,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[38],"tags":[],"_links":{"self":[{"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/posts\/574"}],"collection":[{"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/comments?post=574"}],"version-history":[{"count":7,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/posts\/574\/revisions"}],"predecessor-version":[{"id":630,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/posts\/574\/revisions\/630"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/media\/616"}],"wp:attachment":[{"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/media?parent=574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/categories?post=574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zerocodeskills.com\/wp-json\/wp\/v2\/tags?post=574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}