I got stuck while uploading updating user avatar on my website. I'm using angular and need to upload image using form and get base64 encoding of this image to pass as a parameter into my backend.
onUploadFinished(event){
const avatar ={
avatar:event.file
}
console.log(avatar)
//validate avatar
if(!this.validateService.validateAvatarUpdate(avatar.avatar)){
this.flashMessage.show('Please, select a new avatar', {cssClass: 'alert-danger', timeout:3000});
return false;
}
this.updateService.updateAvatar(avatar).subscribe(data=>{
console.log()
if(data/*.success*/){ //commented cause response doesnt have property success but still registering user without displaying the flash message
this.flashMessage.show('You successfuly changed your avatar', {cssClass: 'alert-success', timeout:3000});
this.router.navigate(['/profile'])
this.authService.getProfile().subscribe(profile=>{
this.user = profile.user;
},
err=>{
console.log(err);
return false;
});
}else{
this.flashMessage.show('Something went wrong', {cssClass: 'alert-danger', timeout:3000});
this.router.navigate(['/profile'])
}
});
}
I was trying to use ng2-image-upload here is html
<h6>Upload new photo...</h6>
<!-- <form (submit)="onUserAvatarSubmit()" enctype="multipart/form-data">
<input type="file" name="avatar" class="text-center center-block well well-sm">
<p></p>
<input class="btn btn-primary" value="Upload" type="submit">
</form> -->
<image-upload name="avatar" [class]="'customClass'"
[headers]="{Authorization: this.authToken}"
[buttonCaption]="'Choose an Image'"
[dropBoxMessage]="'or just drop them here'"
(uploadFinished)="onUploadFinished($event)"
[url]="''">
</image-upload>
Maybe anyone had such experience with uploading images, so give me some tips how to deal with it. Thanks here is a screenshot So you see when displaying this image we can see its base64 but I cant take it.
Related
i am created the search part using angular and node js. i have tested through the postman it is working fine. when connect with frond end anqular application is it not working error displayed
Failed to load resource: the server responded with a status of 404 (Not Found)
what i tried so far i attached below please check.
i tried on the url http://localhost:9001/user/findOne?first_name=kobinath
this is working well on postman but tested through the anqular didn't work. i attached the code what i tried so far.
employee.component.ts
search()
{
let name= {
"first_name" : this.first_name
};
this.http.post("http://localhost:9001/user/findOne",name).subscribe((resultData: any)=>
{
console.log(resultData);
});
}
employee.component.html
<form>
<div class="form-group">
<label>First Name</label>
<input type="text" [(ngModel)]="first_name" [ngModelOptions]="{standalone: true}" class="form-control" id="name" placeholder="Enter Name">
</div>
<button type="submit" class="btn btn-primary mt-4" (click)="search()" >Search</button>
</form>
</div>
What I noticed: With Postman you send first_name as a query parameter, but in your Angular-code you attach it to the request-body.
To achieve the equivalent of what you do in Postman, you could use the following code:
search(firstName: string) {
const params = new HttpParams().set('first_name', firstName);
const body = {
first_name : firstName
};
this.http.post("http://localhost:9001/user/findOne", body, { params: params })
.subscribe((resultData: any)=>
{
console.log(resultData);
});
}
Btw: Why don't you use GET instead of POST?
I'm currently trying to post a photo file upload to my backend, to be stored in the file system. However, whenever I do, it produces an absolutely bizarre string of numbers / letters when I console log the req.body.
I've no idea what this is, why it's happening or how to convert it into the image I need to store in my file system.
Here's my uploadPhoto and buttonClick (aka submit) functions:
const uploadPhoto = (e) => {
e.preventDefault()
setPreviewPhoto(URL.createObjectURL(e.target.files[0]))
setPhotoFile(e.target.files[0])
}
const buttonClick = async (e) => {
e.preventDefault()
const formData = new FormData()
formData.append('photoFile', photoFile)
await axios.post("/api/uploadProfilePicture", formData, { headers: { 'content-type': 'multipart/form-data' }}, { transformRequest: formData => formData })
}
And here's my form that's used to upload the image:
<form className="setup-form" method="POST" encType="multipart/form-data" onSubmit={buttonClick}>
<label className="setup-label">Your name</label>
<input className="setup-input" type="text" name="name" onChange={onChange} value={name} />
<label className="setup-label">Your photo</label>
<div className="setup-photo-hint-container">
<div className="setup-photo-div">
<label for="photoFile" className="setup-photo-label">Upload</label>
<input className="setup-photo-input" id="photoFile" type="file" onChange={uploadPhoto} name="photoFile" />
</div>
</div>
</form>
Does anyone have any idea what I'm doing wrong here? I don't understand why it's going to the request body for one, or why it's producing these characters for another.
I am working on a small project with checkbox and node js. I need the checked box stay on the screen after I click submit button and reset the form after clicking reset button.How can do that?
ejs code
<form method="post" action="/">
<input type="checkbox" name="preference" value="A">A
<input type="checkbox" name="preference" value="B">B
<input type="checkbox" name="preference" value="C">C
<input type="submit" value="Click to Submit">
<input type="reset" value="Erase and Restart">
</form>
node js
express.get('/', (req, res) => {
res.render('form');
});
express.post('/', (req, res) => {
console.log(req.body);
let checkedValue =req.body.preference;
let output = checkedValue==undefined?`You didn' make selection.`:`The preference iterm on menu is ${checkedValue}`;
res.render('form',{
output:output,
});
});
What's going on is that when you submit your form, the webpage is reloaded, so you lose your checked state. You can either save the values on your server and have them pre-checked using an optional checked flag in your ejs template or you can add some client side javascript to handle the form submission for you by writing and event handler for the submit event on the form.
if you expand your ejs template with a conditional checked value on your inputs, your returned page will have them pre-checked
<input type="checkbox" name="preference" <% if (submittedValue === "A") { %>checked<% } %> value="A">A
Or, here's a super simple bit of javascript that would send the values to your server
document.forms[0].addEventListener('submit', function (e) {
e.preventDefault(); // prevent the form from submitting with a page refresh
const data = { values: [] };
e.target.elements.forEach((formEl) => {
if (formEl.checked) data.values.push(formEl.value);
});
fetch('/urlToProcessYourForm', { method: 'POST', body: JSON.stringify(data) });
});
I'm sure there's a sound reason as to why I can't get this to work but I've been staring at the code for a long time and I'm brutally stuck. I'm trying to build out a very basic registration form that should store the data in my PostgreSQL database. I'm using bcrypt to hash out the password, but even without still having issues.
My HTML has the following:
<form action="/register/new" method="post">
<label for="username">Username</label>
<input type="text" name="username">
<label for="password">Password</label>
<input type="password" name="password">
<label for="confirm">Confirm Password</label>
<input type="password" name="confirm">
<button type="submit">Submit</button>
</form>
Then for the code I have:
app.get("/register", function(req,res){
res.render("register");
})
app.post('register', function(req,res){
let newUser = {
username: req.body.username,
passwordHash: bcrypt.hashSynce(req.body.password, 8)
}
models.Users.create(newUser).then(function(){
res.redirect('/login');
})
});
The plan for the registration data to be stored and the user redirected to the login page, login stores them in session, and so on. I thought for a bit that the issue was the action on the form but regardless I'm getting Cannot POST /register/new. I've also played around with doing a findOrCreate and do a comparison but I wanted to start with actually just creating before I make it more complex. The same issue occurs with cannot post.
Any thoughts on what I need to change?
Probably would've worked better if I did a app.post("/register"...
Simple miss of an "/"
try this modified code...
app.post('/register', function(req,res) {
let newUser = {
username: req.body.username,
passwordHash: bcrypt.hashSync(req.body.password, 8)
}
// if it does not connect/save try using models.User instead of models.Users below.
models.Users.create(newUser).then(function(){
res.location('/login');
res.redirect('/login');
})
});
I have a job application form as part of a site built on ServiceStack. I am attempting to use the included ss-utils.js to leverage built-in Fluent Validation, but my form doesn't post the user's file upload. Here's the relevant snippet of the form:
<form id="form-careerapplication" action="#(new CreateCareerApplication().ToPostUrl())" method="post">
<div class="error-summary"></div>
<div class="form-group">
<label>
Upload Resume
</label>
<input type="file" id="Resume" name="Resume" />
<span class="help-block"></span>
</div>
<input type="hidden" name="Id" value="#Model.Id" />
<input type="submit" value="Submit Application" />
</form>
<div id="success" class="hidden">
Thank you for your application.
</div>
$("#form-careerapplication").bindForm({
success: function (careerApplicationResponse) {
$("#form-careerapplication").addClass("hidden");
$("#success").removeClass("hidden");
},
...
Is there something I'm missing in ss-utils.js? Or is there a way of overriding / supplementing the submit behavior to use FormData?
Uploading files via a HTML FORM requires a enctype="multipart/form-data", e.g:
<form id="form-careerapplication" action="#(new CreateCareerApplication().ToPostUrl())"
method="post" enctype="multipart/form-data">
...
</form>
If you want to change support multiple file uploads or change the appearance of the UI Form I recommend the Fine Uploader, there's an example showing how to use Fine Uploader on the HTTP Benchmarks Example.
Whilst Imgur has a simple client HTML and Server example.
Turned out I can use the beforeSend option as part of the configuration passed into bindForm to override the data being sent. Its a bit of a hack, but it worked and I keep the original ss-utils.js fluent validation!
$("#form-careerapplication").bindForm({
success: function (careerApplicationResponse) {
....
},
error: function (error) {
....
},
contentType: false,
processData: false,
beforeSend: function (x, settings) {
var fd = new FormData();
// Tweaked library from https://github.com/kflorence/jquery-deserialize/blob/master/src/jquery.deserialize.js
// Used to translate the serialized form data back into
// key-value pairs acceptable by `FormData`
var data = $.fn.deserialize(settings.data);
$.each(data, function (i, item) {
fd.append(item.name, item.value);
});
var files = $('#form-careerapplication').find("input:file");
$.each(files, function (i, file) {
fd.append('file', file.files[0], file.files[0].name);
});
settings.data = fd;
}
});