I am register new strapi user by RxJS ajax. When user already exist, I expect the 'user already exist' return but It crash my app.
Unhandled JS Exception: You provided 'undefined' where a stream was expected. You can provide an Observable, Promise, Array, or Iterable.
How to handle error with RxJS ajax?
import { ajax } from "rxjs/ajax";
import { map, catchError } from "rxjs/operators";
const testAjax = () => {
const test$ = ajax({
url: "http://localhost:1337/auth/local/register",
method: "POST",
body: {
username: "email3#test.com",
email: "email3#test.com",
password: "password"
}
})
.pipe(
map(userResponse => userResponse),
catchError(error => console.log("Error: ", error))
)
.subscribe(({ response }) => {
console.log("res: ", response);
});
};
did you try console userResponse , map(userResponse => console.log('users: ', userResponse)), may be there was the reason for the crash
Related
I am facing a timeout issue with nestJs Httpservice.
The error number is -60 and error code is 'ETIMEDOUT'.
I am basically trying to call one api after the previous one is successfully.
Here is the first api
getUaaToken(): Observable<any> {
//uaaUrlForClient is defined
return this.httpService
.post(
uaaUrlForClient,
{ withCredentials: true },
{
auth: {
username: this.configService.get('AUTH_USERNAME'),
password: this.configService.get('AUTH_PASSWORD'),
},
},
)
.pipe(
map((axiosResponse: AxiosResponse) => {
console.log(axiosResponse);
return this.getJwtToken(axiosResponse.data.access_token).subscribe();
}),
catchError((err) => {
throw new UnauthorizedException('failed to login to uaa');
}),
);
}
Here is the second api
getJwtToken(uaaToken: string): Observable<any> {
console.log('inside jwt method', uaaToken);
const jwtSignInUrl = `${awsBaseUrl}/api/v1/auth`;
return this.httpService
.post(
jwtSignInUrl,
{ token: uaaToken },
{
headers: {
'Access-Control-Allow-Origin': '*',
'Content-type': 'Application/json',
},
},
)
.pipe(
map((axiosResponse: AxiosResponse) => {
console.log('SUCUSUCSCUSS', axiosResponse);
return axiosResponse.data;
}),
catchError((err) => {
console.log('ERRRORRRORROR', err);
// return err;
throw new UnauthorizedException('failed to login for');
}),
);
}
Both files are in the same service file. Strangely, when i call the second api through the controller like below. It works fine
#Post('/signin')
#Grafana('Get JWT', '[POST] /v1/api/auth')
signin(#Body() tokenBody: { token: string }) {
return this.authService.getJwtToken(tokenBody.token);
}
When the two api's are called, however, the first one works, the second one that is chained is giving me the timeout issue.
Any ideas?
Two things that made it work: changed the http proxy settings and used switchMap.
I have aproblem when test Apollo.When I try query with apollo and graphql, i want response return error and partical data, so I set property errorPolicy:'all'. But its not work. I don't no why? Help please!
Here my code:
query { animal {
name
age }, school {
name
numberfd } } `
const { loading,data,error} = useQuery(GET_DASHBOARD_DATA, {
errorPolicy:'all',
onCompleted: (res) => {console.log("complete",res)},
onError : (res,data) => {console.log("ERRRR",res,data)},
})
and i want to receive:
{
error:[...], data:[animal:[...]] }
but its only response error.Here is Apollo's doc: https://www.apollographql.com/docs/react/data/error-handling/
onError type is onError?: (error: ApolloError) => void;. You don't have data inside onError callback.
After useQuery you can add:
console.log('data', data)
console.log('error', error)
I faced the same issue with errorPolicy: 'all', I only received the partial result inside onCompleted callback of useQuery, but no errors.
I created an ErrorLink like this:
private createErrorLink = () => {
return new ApolloLink((operation, forward) => {
return forward(operation).map((response) => {
// filter out errors you don't want to display
const errors = filterSomeErrors(response.errors);
if (errors && response?.data) {
response.data.errors = errors;
}
return response;
});
});
};
Now inside my onCompleted callback I get my data as well as errors. You will have to tweak your types a bit, because seems there is no errors field on response.data by default.
Mind that if you use onError from Apollo and return something from the link, it will retry your request containing errors!
I'm trying to use useEffect in my React app but also refactor things more modularly. Shown below is the heart of actual working code. It resides in a Context Provider file and does the following:
1. Calls AWS Amplify to get the latest Auth Access Token.
2. Uses this token, in the form of an Authorization header, when an Axios GET call is made to an API Endpoint.
This works fine but I thought it would make more sense to move Step #1 into its own useEffect construct above. Furthermore, in doing so, I could then also store the header object as its own Context property, which the GET call could then reference.
Unfortunately, I can now see from console log statements that when the GET call starts, the Auth Access Token has not yet been retrieved. So the refactoring attempt fails.
useEffect(() => {
const fetchData = async () => {
const config = {
headers: { "Authorization":
await Auth.currentSession()
.then(data => {
return data.getAccessToken().getJwtToken();
})
.catch(error => {
alert('Error getting authorization token: '.concat(error))
})
}};
await axios.get('http://127.0.0.1:5000/some_path', config)
.then(response => {
// Process the retrieved data and populate in a Context property
})
.catch(error => {
alert('Error getting data from endpoint: '.concat(error));
});
};
fetchData();
}, [myContextObject.some_data]);
Is there a way of refactoring my code into two useEffect instances such that the first one will complete before the second one starts?
You could hold the config object in a state. This way you can separate both fetch calls and trigger the second one once the first one finished:
const MyComponent = props => {
const myContextObject = useContext(myContext);
const [config, setConfig] = useState(null);
useEffect(() => {
const fetchData = async () => {
const config = {
headers: {
Authorization: await Auth.currentSession()
.then(data => {
return data.getAccessToken().getJwtToken();
})
.catch(error => {
alert("Error getting authorization token: ".concat(error));
})
}
};
setConfig(config);
};
fetchData();
}, [myContextObject.some_data]);
useEffect(() => {
if (!config) {
return;
}
const fetchData = async () => {
await axios
.get("http://127.0.0.1:5000/some_path", config)
.then(response => {
// Process the retrieved data and populate in a Context property
})
.catch(error => {
alert("Error getting data from endpoint: ".concat(error));
});
};
fetchData();
// This should work for the first call (not tested) as it goes from null to object.
// If you need subsequent changes then youll have to track some property
// of the object or similar
}, [config]);
return null;
};
I have the following action and test case - when I run this test(jest) - I am seeing TypeError: Cannot read property 'data' of undefined in action creator, not sure what is missing here? I am providing mockData that is expected. is it because there is an async nested here? but i am using `.then but it still fails.
Action creator:
export const getUser = ({
uname,
apiendpoint,
}) => {
const arguments = {};
return async (dispatch) => {
await axiosHelper({ ---> this will return axios.get
arguments,
path: `${apiendpoint}/${uname}`,
dispatch,
}).then(async ({ data, headers }) => { -- getting error at this line.
dispatch({ type: GET_USER, payload: data });
dispatch({ type: GET_NUMBEROFUSERS, payload: headers });
});
};
};
Test:
describe('Get User Action', () => {
let store;
const middlewares = [thunk];
const mockStore = configureStore(middlewares);
beforeEach(() => {
store = mockStore({
data: [],
});
});
afterEach(() => {
fetchMock.reset();
fetchMock.restore();
})
const arguments = {
uname: 'user123',
apiendpoint: 'test',
};
const url = 'https://www.localhost.com/blah/blah';
it('should get a User', () => {
fetchMock
.getOnce(url, {
data: mockData, -->external mock js file with user data {}
headers: {
'content-type': 'application/json'
}
});
const expectedActions = [
{
type: 'GET_USER',
data: mockData
},
{ type: 'GET_NUMBEROFUSERS' }
];
return store.dispatch(actions.getUser(arguments)).then(() => {
expect(store.getActions()).toEqual(expectedActions);
});
});
You are using await AND then on the same function (axiosHelper for example).
This is wrong usage and will lead to many errors of undefined.
You either use a callback-function or a .then() or an await but not 2 or all of them.
I recommend to watch some tutorials/explanations about async/await because it's really important to understand what a Promise is.
What's happening in your cas is that axiosHelper is executed 2 times, because if it's finished the then-part will fire up but at the exactly same time (because it's async) the await finishes and code-execution continues the parent flow. This brings up race-conditions and, as i said, will lead to undefined because you are executing the same logic twice or more.
I am currently learning react-native and I am having an issue with fetch request.
It's giving me an error in the image shown below.
**Note: I test the url with react, and it works there. But for some reason it does not work on react-native.
The code:
constructor(props) {
super(props);
this.state = {
isLoading: true,
data: null,
error: null
}
}
componentDidMount() {
return fetch('https://ptx.transportdata.tw/MOTC/v2/Bike/Availability/Taipei?$format=JSON')
.then((res) => res.json())
.then((resJson) => {
this.setState( {
isLoading: false,
data: resJson,
})
})
.catch((error) => {
console.log(error);
this.setState({
error: error
})
})
}
The error is the following:
error description
A few things:
You don't need a return statement in componentDidMount.
When I try to fetch the URL, I got a 401 unauthorized. According to their API docs you need an app id and api key. Are you setting those when making the request?