Develop Reference

Check if data in URL is valid before navigate to page

I would like to configure my Angular component, so that the page only loads if the ID in the URL is valid. The point here is, that I want to protect the page from users manually entering a random URL, and accessing any page.
I have a component with lists.
If I click on the "Show Details", Angular navigates to the details page. I would like to only open this page, if the entered URL contains a valid ID. To achieve this, I call a service to gather all IDs into an array of strings. And then examine if the entered ID is a member of that array.
What I have tried:
list.component.ts:
ngOnInit() {
this.fetchLists();
}
fetchLists() {
from(this.listService.getGroups())
.pipe(
takeUntil(this.destroy$)
)
.subscribe({
next: (listUI: ListUI[]) => {
this.listData = listUI;
},
error: (error) => {
this.logger.debug(error.message);
this.certError = true;
}
});
}
details.component.ts:
ngOnInit() {
this.fetchListsAndIDs();
if (this.validIDsList.includes(listID)) {
this.router.navigateByUrl(`/groups/lists/${listID}/details`);
}
else {this.router.navigateByUrl(`/groups/lists`);}
}
fetchListsAndIDs() {
from(this.listService.getGroups())
.pipe(
takeUntil(this.destroy$)
)
.subscribe({
next: (listUI: ListUI[]) => {
const listData = listUI;
this.validIDsList = listData.map((lists) => lists.id);
},
error: (error) => {
this.logger.debug(error.message);
this.certError = true;
}
});
}
app.routing.module.ts
{
path: 'groups/lists/${listID}/details',
component: DetailsComponent
}
The page "groups/lists/99999999999/details" opens, with zero data, and "this.validIDsList" is undefined. Can someone please help me how to fix this?

You almost have the right code, but you missed the part that, this.fetchListsAndIDs() is executing an asynchronous observable, so your if..else block is executing before even the API call completes.
I would suggest, you include the if...else check inside the next() handler. I have reversed the conditions to check for NOT first, since you are already in details.components.ts which represents ``/groups/lists/${listID}/details) route, you should only redirect the user back to lists if id is not valid, else the component should continue with its work.
I added code to grab the listId from URL. It is missing in the code you posted in the question.
ngOnInit() {
this.listID = this.route.snapshot.paramMap.get('listID');
this.fetchListsAndIDs();
}
fetchListsAndIDs() {
from(this.listService.getGroups())
.pipe(
takeUntil(this.destroy$)
)
.subscribe({
next: (listUI: ListUI[]) => {
const listData = listUI;
this.validIDsList = listData.map((lists) => lists.id);
this.handleNavigation();
},
error: (error) => {
this.logger.debug(error.message);
this.certError = true;
}
});
}
handleNavigation() {
if (!this.validIDsList.includes(this.listID)) {
this.router.navigateByUrl(`/groups/lists`);
} else {
// call the function to continue with details component
}
}

Is there faster way about javascript autocomplete?

Goal : faster way autocomplete
Situation: I use vue js, when open the page, execute in mounted()
axios.get('http://127.0.0.1:3000/games/all')
.then(res=>{
this.$store.state.games = res.data;
this.$store.dispatch('GetGames',res.data);
})
.catch(err=>console.log(err))
axios get games/all is
router.get('/all',(req,res,next)=>{
let responseData = {};
Game.find({},(err,rows)=>{
if(err) throw err;
if(rows.length) {
responseData.result = 1;
responseData.data = rows;
}else{
responseData.result = 0;
}
res.json(responseData.data);
// console.log(responseData.data);
});
})
I got a json file like
{
{ gamename:"agricola",
maxplayer:4,
minplayer:1,
mintime:20,
maxtime:90,
difficulty:"hard",
}
}
There are 200~300 columns.
Using vuex
state: {
games:"",
},
mutations: {
getGames(state,payload){
state.games = payload;
console.log("받아온 게임",state.games);
},
}
GetGames:({commit},payload)=>{
commit('getGames',payload)
},
When I bring db, using state in store.js file, so I use autocomplete
const autocomplete = document.querySelector(".autocomplete");
if (this.gameInput) {
this.result = this.games.filter((game) => {
return game.gamename.match(new RegExp(this.gameInput, "i"))
});
} else {
autocomplete.classList.add("disabled");
}
the gameInput is your typing
Problem: it takes too long to bring the DB (4000ms~) and Data is stored in local storage. Even after receiving the data, I cannot search unless refresh it. so user has to stay until bring the db, and user cannot search game until refresh the page. I want they don't need to refresh my page. thanks for read my question. sorry about my poor English (tear)

How execute javascript after a component change in angular?

My code works fine when I write in browser localhost:4200/pay;id=1. This show Pay component with credit card fields generated by a external javascript (This javascript script is loaded from this component). But if i come from another component to this, Pay component doesn't show the credit card fields but load external script. How can I fix this?
My code
first.component.ts
let datos = {
id:'6'
}
this.router.navigate(['pay',datos]);
pay.component.ts
ngOnInit(): void {
this.loadScripts();
}
loadScripts() {
this.dynamicScriptLoader.load('2payjs').then(data => {
// Script Loaded Successfully
console.log('All elements loaded successfully')
this.loadElement();
}).catch(error => console.log(error));
}
loadElement(){
let that = this;
let id = this.router.snapshot.paramMap.get('id');
window.addEventListener('load', function() {
// Initialize the JS Payments SDK client.
let jsPaymentClient = new TwoPayClient('AVLRNG');
// Create the component that will hold the card fields.
let component = jsPaymentClient.components.create('card');
component.mount('#card-element');
// Handle form submission.
document.getElementById('payment-form').addEventListener('submit', (event) => {
event.preventDefault();
/// Extract the Name field value
const billingDetails = {
name: document.querySelector('#name').value
};
// Call the generate method using the component as the first parameter
// and the billing details as the second one
jsPaymentClient.tokens.generate(component, billingDetails).then((response) => {
//console.log(response.token);
let data = {
token:response.token
}
}).catch((error) => {
console.error(error);
});
});
});
}

const navigationExtras: NavigationExtras = {
queryParams: {
id: 1,
},
queryParamsHandling: 'merge'
};
this.router.navigate(['pay'], navigationExtras);
you need navigationExtras in order to create params in your router link and able to fetch by another component

Already solved. I just delete window load event listener.

Cannot refresh information with navigate angular2

I have a little bit of a problem with the angular navigator 2
I'm in my detail projects page and I have a component that is in my detail page that will show me the next project.
So in my component I recall the same page which is' /projects/id
when I click in the navigation bar it changes the id well but the content does not change and I do not understand why because I make a router. navigate of my page.
my init controller projectDetail
ngOnInit() {
this.nextProjectId = this.activedRoute.snapshot.queryParams.nextProject;
const id = this.activedRoute.snapshot.params.id
this.projectsService.projectsAll().then( (projects) => {
if (projects[this.nextProjectId]) {
this.nextProject = projects[this.nextProjectId];
} else {
this.nextProject = projects[0];
}
});
this.projectsService.projectFind(id).then( project => this.project = project);
}
my function navigate in component nextProject
nextProjectDetail(id, nextProject) {
const next = parseInt(nextProject, 0) + 1
this.router.navigate(['projects/', id], { queryParams: {nextProject: next }}).then(
function(){
console.log('navigate success');
},
function(){
console.log('navigate failure');
}
);
}
I even tried to use this function in the init of detail projects to see when the url changes but it doesn't work.
this.params.subscribe(params => {
console.log("dfsd");
});
there is another way to refresh the same page in a component on the same page?
thanks

How to trigger transition when data is loaded in component in vue.js?

i'm currently working on a project with vue.js and vue-router. I got a vue in which I display some news, and I got thoses news from an API (it's kind of a blog).
I'm currently loading thoses news inside the router.data to set the data for the component, as said here. It's working great, no problems.
But my problem is that I want to animate the apparition of the news when I go to this view. I've tried using the ready property from the component, but it's called before the router.data has finished getting the news, which result in errors in animation, because there aren't any elements.
How can i trigger the animations once the news I fetch are fully rendered inside the DOM ?
Here is the code of my component:
export default {
name: 'News',
data: function () {
return {
news: []
}
},
route: {
data: function (transition) {
console.log('data hook')
return api
.getPostsByLimit(4, 1)
.then(function (posts) {
for (var i = 0; i < posts.length; i++) {
var post = posts[i]
post.formatedDate = moment(post.date).format("D MMM. YYYY")
post.dateTime = moment(post.date).format("YYYY-MM-DD")
if(post.news_artist_related) {
post.news_artist_related = JSON.parse(post.news_artist_related)
post.news_artist_related.type = slugify(post.news_artist_related.type)
post.news_artist_related.slug = slugify(post.news_artist_related.slug)
}
}
return posts
})
.then(news => ({news}))
}
},
ready: function () {
console.log('Ready hook')
animateNewsApparition()
}
}

From the docs:
When resolved, the component will also emit a 'route-data-loaded' event.
So:
events: {
'route-data-loaded': function() {
animateNewsApparition()
}
}