I tried this by exploring web and supabase docs but nothing really happens
import 'package:supabase/supabase.dart';
class supahandelar {
static const SupaUrl = 'UrlFromSupabase';
static const SupaKey = 'KeyFromSupabase';
final client = SupabaseClient(SupaUrl, SupaKey);
getData() async {
var response = await client.from('Pokemons').select().execute();
print("Respnse");
print(response);
}
}
It gives me this output on console:
instance of 'minified:hy<erased>'
Also not getting any output in widgets/ui
Can anyone please suggest me simple methods to only fetch data.
It was just an RSL issues. When i tried with new databases without RSL disabled it worked.
So i need to create RSL Policy of who to allow read data...
For Ex:-I Added true for all user to read
If anyone face this issue please check/ Create RSL Policy.
Related
So, Supabase announced that they're updated supabase-flutter package into v.1.0 and I want to give it a try.
This is how they're fetching data from database in previous version:
final res = await supabase.from('my_table').select().execute(); // <= They're using execute
final error = res.error;
if(error != null) {
// handle error
}
final data = res.data;
But in this new version, they're deprecating .execute().
As the blog said,
No more .execute() to get the data
We want this SDK to be as close as possible to the JavaScript SDK to provide consistent developer experience no matter what programming language you are using. Prior to the 1.0 update, whenever you called the postgrest endpoints, you had to call .execute() at the end of each query.
.execute() is now deprecated. You no longer needed it to query data from your Supabase database.
This is the new syntax:
try {
final data = supabase.from('my_table').select();
// 'data' data type is PostgrestFilterBuilder
} catch (error) {
// handle error
}
How can I get value from variable 'data'? Also I want to get a single value from the data.
Any help would be appreciated
I think the issue is that you are missing a await before the supabase.from in your code.
Goal : To save user ID and their properties, as he/she interacts with the flutter application.
Problem : Events are getting logged but i cant see user id and properties. I noticed it initially (that user id and properties arre not being logged) while working in debug mode, and then I also waited for 24-48 hours to check in the dashboard but no details for userId.
Documentation link : https://firebase.google.com/docs/analytics/userid#dart
and Yes the properties that I am trying to save in analytics, I have defined them in Custom definitions under User scope.
Code :
import 'package:firebase_analytics/firebase_analytics.dart';
class AnalyticsClass {
static final AnalyticsClass _singleton = AnalyticsClass._internal();
late FirebaseAnalytics fa = FirebaseAnalytics.instance;
factory AnalyticsClass() {
return _singleton;
}
AnalyticsClass._internal();
buttonTap(id, name) async {
await fa.logEvent(name: 'button_tap');
}
setUser(String id, name) async {
await fa.setUserId(id: id);
await fa.setUserProperty(name: 'referral', value: "test new : $name");
}
resetUser() async {
await fa.setUserId(id: null);
await fa.setUserProperty(name: 'referral', value: null);
}
}
If you're using the setUserId() in Firebase, this does not show up in the Analytics reports due to privacy concerns. What you can do is to export your data to BigQuery. This will allow you to query your raw data as well as build custom reports via Data Studio. You may also consider using the User explorer in Google Analytics Dashboard which will help you gain more insight on the behavior of your individual users.
I'm using strapi community edition v3.6.8. I have two different models ,User and CarModel. The User Model is strapi's integrated user model. The relation User: CarModel is 1:n
So I've got a profile page in which I want to fetch the User and their related CarModels. I can't get my head around how to achieve this.
I've read several answers that include creating a service which then fetches the related CarModelobjects but I can't figure out what to put into the service.
So the conclusion I've reached so far is that it is probably best if I just create a custom endpoint which fetches the current user and related objects.
How do I go on about this? This is the code I currently have:
axios.get(`http://localhost:1337/users/currentUser`, {
headers: {
Authorization: `Bearer ${token}`
}
})
In extensions/users-permissions/config I've created a routes.json with this content:
"method": "GET",
"path": "/users/currentUser",
"handler": "User.currentUser",
"config": {
"policies": ["policies.isAuthenticated"]
}
}
in config/policies I've created a is-authenticated.js - File with the following content:
module.exports = async (ctx, next) => {
if (ctx.state.user) {
return await next();
}
ctx.unauthorized(`You're not logged in!`);
};
And lastly in extensions/users-permissions/controllers I've created a User.js file with the following content:
const { sanitizeEntity } = require('strapi-utils');
const sanitizeUser = user =>
sanitizeEntity(user, {
model: strapi.query('user', 'users-permissions').model,
});
module.exports = {
currentUser: async (ctx, next) => {
strapi.query('user').find({id: ctx.id}, ['car-model']);
await next();
}
};
So now my questions would be:
1st: Something is wrong because when trying to GET /users/currentUser I get a 403. What exactly am I doing wrong?
2nd: Is this approach even valid in the first place?
And 3rd: What would be the correct approach to solving this problem? Because somewhere else I've read another approach which included writing a custom service which handles resolving the relation, but this looked very complicated imho, considering I'm simply trying to resolve a relation that already exists in the database.
I've also tried manipulating the users/me endpoint which didn't yield any results (and is probably also discouraged).
Interestingly: when the user logs in, I get the user object and all foreign key relations returned. Only when I query /users/me I get only the user data without relations. So I've read that this is a security feature, but what endpoint is used then, when posting to /auth/local and why does this endpoint return the user and related objects?
Could I use this endpoint instead of /users/me?
Any help to this problem would be greatly appreciated, best regards,
deM
So for anyone else looking for a solution, I figured it out. I added a custom route to currentUser as described above then I added a controller for this route in which I put the following code:
currentUser: async (ctx, next) => {
let carModelsOfUser = await (strapi.query('user', 'users-permissions').findOne({id: ctx.state.user.id}, ['carModels', 'carModels.images', 'carModels.ratings.rating']));
return carModelsOfUser;
}
CAUTION!
This also returns the user's hashed password and other potentially sensitive information.
Strapi offers the sanitizeEntity function to remove sensitive information, but as of now I haven't figured out how to use this in that context, as I'm not using the "raw" user here but instead joining some fields.
i All,
The Project: A handy utility for tickets at work to help sort and manage my tickets, built on top of our provider's API.
My Background: I'm like 19 hours total into dart and am almost done with my first bootcamp.
The GIST: I have started writing a provider for our helpdesk software's API. I am sending requests to the API successfully but I am utterly clueless on transforming the data into an actual map to generate ticket instances with.
What I'm trying to accomplish:
Fetch the data from the API
Convert that String into a MAP of json objects that I can iterate
through
Iterate through the JSON objects to create instances of ticket
objects with
build a list of those ticket objects and return it to requestor to
generate a widget list.
I could swear I've done everything reasonable to try and type cast this as a map but I think there is something I just don't understand. FWIW I think whatever it is I'm trying to do is accessing a Future not the actual data. and I think i might be confused or unclear about async/awaits but my understanding of the code I've written is that the actions are chained one to another so I shouldn't be "waiting" for anything or getting a future, I should just be getting a string.
Otherwise, Here's my code cleaned up, any advice or suggestions on working with the data in the print would be much appreciated.
class ticketingsoftwareAPIProvider {
// Object Properties
Client _client = Client();
final String _ApiKey = "YOUSHALLPASS!";
final String apiRoot = "https://api.ticketingsoftware.com";
final String agentId = '2675309';
getAgentTickets() async {
// Headers for our HTTP Request
Map<String, String> headers = {
'X-ticketingsoftware-Authorization': 'Bearer $_ApiKey',
'Accept': 'application/vnd.ticketingsoftware.v2.1+json',
'Content-Type': 'application/json'
};
await _client
.get(Uri.parse('$apiRoot/incidents.json?assigned_to=$agentId'))
.then((data) {
if (data.statusCode == 200) {
print(json.decode(data.body));
// CANT SEEM TO MAKE THIS A INTO A MAP TO GENERATE OBJECTS WITH.
}
});
}
}
} // END CLASS
I apologize for any missing information, I am new to dart and REALLY programming in general and am still learning the culture. please let me know if there is any additional information that might help.
My Solution ended up being:
List ticketJson = json.decode(data.body);
for (var ticket = 0; ticket < ticketJson.length; ticket++) {
thisAgentsTickets.add(incident.fromJson(ticketJson[ticket]));
return thisAgentsTickets;
I think I've been learning from a very out of date course.
You need fromJson method to convert it to an object. For example
if (data.statusCode == 200) {
return AgentTicket = AgentTicket.fromJson(data.body)
}
Use json_serializable package for easy way to create the method, or you can create it manually too.
Is it possible to achive authentication with email and password in flutter without using firebase? I have searched around Stackoverflow and internet in general and found nothing about this.
I am creating a simple authentication class this is what I have done at the moment:
class User {
bool isAuthenticated = false;
late String userid;
late String username;
late String email;
late DateTime expireDate; // this variable is used to make the user re-authenticate when today is expireDate
User(bool isAuthenticated, String userid, String username, String email) {
this.isAuthenticated = isAuthenticated;
this.userid = userid;
this.username = username;
this.email = email;
this.expireDate = new DateTime.now().add(new Duration(days: 30));
}
}
class Authentication {
Future<User> signin(String email, String password) {}
void signup(String username, String email, String password) {}
}
EDIT #1: I know how to setup a cookie/token based authentication server I have my own repos on that topic: cookie authentication, token authentication but I don't know how to handle the tokens/cookies in flutter.
This answer is based of #edit1. Since you mentioned that you already know how to set up tokens on the server side you're half way done. Here's a few assumptions I'm making, you already know js/php and worked with JSON output, The database already has a column and table that keeps track of sessions and user_id.
Since you know how Cookies are built this should be relatively easy cause i built it around similar architecture. We has to use the local memory that app's provide access to. There are two packages in flutter that allow u to do this, you can use either:
shared_preferences package link
flutter_secure_storage package link
The main difference is if you want to store 'tokens' or data you want secure you would obviously use flutter_secure_storage. I'm going to use this for code example. And yes the data is saved even after the app is closed.
Setting up Tokens(flutter):
Setting up User Class
When using firebase we generally take for granted the user class that comes with flutter_auth but that is basically what we have to build. A user class with all the data u want to store and then a function called authenticate.
class AppUser{
final _storage = new FlutterSecureStorage();
//below class is mentioned in the next part
AuthApi api = new AuthApi();
//constructor
AppUser(){
//ur data;
};
Future<bool> authenticate(email, password) async {
//this is the api mentioned in next part
http.Response res = await api.login(email, password);
Map<String, dynamic> jsonRes = jsonDecode(res.body);
if (jsonRes["error"]) {
return false;
}
_setToken(jsonRes["token"]);
_setUID(jsonRes["user-id"].toString());
_setAuthState(true);
return true;
}
Future<void> _setToken(String val) async {
//how to write to safe_storage
await _storage.write(key: 'token', value: val);
}
Future<void> _setUID(String val) async {
await _storage.write(key: 'user_id', value: val);
}
//you can stream this or use it in a wrapper to help navigate
Future<bool> isAuthenticated() async {
bool authState = await _getAuthState();
return authState;
}
Future<void> _getAuthState() async {
//how to read from safe_storage u can use the same to read token later just replace 'state' with 'token'
String myState = (await _storage.read(key: 'state')).toString();
//returns boolean true or false
return myState.toLowerCase() == 'true';
}
Future<void> _setAuthState(bool liveAuthState) async {
await _storage.write(key: 'state', value: liveAuthState.toString());
}
}
and assuming ur going to authenticate on a button press so it would look like
onPressed(){
AuthUser user = new AuthUser();
if(user.authenticate(email, password)){
//if logged in. Prolly call Navigator.
}else{
//handle error
}
}
Setting up api calls
Oka so this is calling a Node express API, and the json output looks like
//if successful
{"status":200, "error": false, "token": "sha256token", "user-id": "uid"}
we need to create a class that will give us an output for making this call hence the AuthApi class
class AuthApi {
//this is the login api and it returns the above JSON
Future<http.Response> login(String email, String password){
return http.post(
Uri.parse(ip + '/api/auth/login'),
headers: <String, String>{
'Content-Type': 'application/json',
},
body: jsonEncode(<String, String>{
"email": email,
"password": password,
}),
);
}
}
Thank you for clarifying what u needed, it helped answer better.
You can use Nodejs & express to create your own API and MongoDB or any other DB to act as a persistent DB. I am attaching my github repo link which has minimum code required to setup a email/password auth in mongodb
Github
EDIT :
I have little to no idea about sessions but for tokens there are packages in pub.dev which lets you decode the tokens. jwt-decoder.
You can check the expiry time of the token using this package and for storing them you can use secure_storage
I had a look at your token authentication repo. I would suggest you to verify the token when you get them and not just blindly trust them.
Yes it is Totally possible to create Authentication without Firebase, but it becomes a-lot more difficult and there are multiple solutions.
What firebase provides:
Server space with no down time
Complete set of Api's including authentication with various methods
Strong security(built by google)
Ease of use and setup with great documentation
The reason I bring these up is cause the alternative ur looking for is very difficult for a programer who's relatively new and can feel like you are building multiple applications at a time. It's definitely a learning curve. Also I'm assuming u don't just want local authentication cause thats kinda pointless.
Creating ur own backend involves:
Setting up a server(usually ubuntu)(and either on a raspi or a host like amazon, digital ocean, etc)
Setting up a database with tables(mysql, sql, mongoDB)
Creating communication API's (php, Node.js)
So here's what i'd recommend for getting into backend dev,
use LAMP architecture : Linux, Apache, MySQL, PHP
Setting up Lamp isn't too hard heres a link i followed:
https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-16-04
After u set up ur back end, then u have to create api calls from flutter.
The call (if u created an auth.php where people can login) would look something like:
http://ip:8080/auth.php?email="example#gmail.com"&pass="123456"
I understand why you feel like you didn't find solutions, i was there too but there are tons,LAMP is one of the more easier ones. If u are still interested i'd recommend checking out System Design courses.