How to save API response in database? - flutter

Question

I want to create an app with flutter that calls a Restful API and when the status code is 200 saves the response which is user information in a sqlite database.
I don't know how call API and save it in database so what can I do? Can somebody help me?

Answer 1

It's very simple
Your answer has two steps
Step 1: Call api
For this step, you can use the http package implemented for Flutter
Examples of http package codes can be seen from this link
https://pub.dev/packages/http/example
Step 2: Saving the response in the local database
For this step, you can also use the shared preference package, the sample code of which is available in the link below
https://pub.dev/packages/shared_preferences/example
I hope it was useful

Answer 2

To complete this task you need two packages from Pub.dev
Ready api get request : will return the data to store into the database
HTTP : This package contains a set of high-level functions and classes that make it easy to consume HTTP resources. It's multi-platform, and supports mobile, desktop, and the browser.
SQFLITE : SQLite plugin for Flutter. Supports iOS, Android and MacOS.
how to do it ?
you can do it in 4 steps :
Create the databse
Call the resource from http.get request
Format the data as you want to save it using json or string
Save the data to the sqfdatabase
var url =
Uri.https('www.yourApiLink.com', '/directory/expl/item', {'q': '{http}'});
// Await the http get response, then decode the json-formatted response.
var response = await http.get(url);
if (response.statusCode == 200) {
var jsonResponse =
convert.jsonDecode(response.body) as Map<String, dynamic>;
var itemCount = jsonResponse['totalItems'];
String response_str = jsonResponse.toString();
// Insert some records in a transaction
await database.transaction((txn) async {
int id1 = await txn.rawInsert(
'INSERT INTO Test(name, value, num) VALUES("some name", 1234, 456.789)');
print('inserted1: $id1');
int id2 = await txn.rawInsert(
'INSERT INTO Test(name, value, num) VALUES(?, ?)',
['response', $response_str]);
});
} else {
print('Request failed with status: ${response.statusCode}.');
}
You need first to do this for sqflite
// Get a location using getDatabasesPath
var databasesPath = await getDatabasesPath();
String path = join(databasesPath, 'demo.db');
// open the database
Database database = await openDatabase(path, version: 1,
onCreate: (Database db, int version) async {
// When creating the db, create the table
await db.execute(
'CREATE TABLE Test (id INTEGER PRIMARY KEY, name TEXT, value INTEGER, num REAL)');
});
Note : This is not a copy paste answer you have to adapt it to your
problem