How to define a function 'server.remove' (removing local files) identical to 'server.revert'.
'server.revert' send 'DELETE' request to '/api' with filename in request body.
I do not quite understand how the function should be organized, try something like that, but it does not work:
mounted() {
this.server = {
url: '/api',
remove: (source, load, error, revert) => {
revert(source);
error('oh my goodness');
load();
},
headers: {
Authorization: 'Bearer ' + this.token,
},
};
},
See here for the function signature, so something like this:
this.server = {
remove: (source, load, error) => {
const request = new XMLHttpRequest();
request.open('DELETE', 'url-to-api/' + source);
request.onload = function () {
if (request.status >= 200 && request.status < 300) {
load(request.responseText);
} else {
error('oh no');
}
};
request.send();
},
}
Related
I am looking to download an image stored on a server into my React Native app.
I had a function that looked like this:
public function image(Request $request, $id)
{
$company = Company::find($id);
$filePath = storage_path() . '/app/' . $company->image;
return response()->file($filePath);
}
And it returned nothing I could read within the app when I tried the following function:
setCompany = async () => {
let company = await AsyncStorage.getItem('currentCompany');
company = JSON.parse(company);
if (company.image !== null) {
let image = await getCompanyPicture({company_id: company.id});
console.log('Here: ', image);
// This is blank, react native returns a warning about data not being of a readable type
}
this.setState({company});
};
I am able to get the image in base_64 using this method:
public function image(Request $request, $id)
{
$company = Company::find($id);
$file_path = storage_path('/app/' . $company->image);
if (file_exists($file_path)) {
$fileData = file_get_contents($file_path);
$fileEncode = base64_encode($fileData);
return response()->json(['status' => 'success', 'data' => ['file' => $fileEncode, 'file_path' => $file_path]]);
}
return response()->json(['status' => 'failure', 'data' => ['file' => null, 'file_path' => $file_path]]);
}
Here is my Axios method too just in case:
export const sendRequest = async (url, data, token, method) => {
let headers = {
'Content-Type': 'application/json',
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Method': 'POST, GET, DELETE, PUT',
};
if (typeof token !== 'undefined' && token !== 'undefined' && token.length) {
headers.Authorization = 'Bearer ' + token;
}
if (method === 'get' && data) {
url +=
'?' +
Object.keys(data)
.map((value) => {
return value + '=' + data[value];
})
.join('&');
data = null;
}
return await axios({
headers: headers,
method: method ? method : 'post',
url: url,
data: data,
})
.then((response) => {
return response;
})
.then((json) => {
return json.data;
})
.catch((error) => {
console.error(error);
if (
error.message !== 'Network Error' &&
error.response.status !== 500 &&
error.response.status !== 413
) {
return error.response.data;
} else if (error.message === 'Network Error') {
return {
status: 'error',
message: 'Unable to connect to server',
};
} else if (error.response.status === 500) {
return {
status: 'error',
message: 'Internal Server Error',
};
} else if (error.response.status === 413) {
return {
status: 'error',
message: 'The file(s) size is too large',
};
} else {
return {
status: 'error',
message: error.message,
};
}
});
};
If anyone could comment on the performance impact of using base_64 instead of the straight file download that would also be helpful
But ultimately I would like a solution for handling the Laravel response()->file() if possible (which I'll use if base_64 is less efficient)
I'm not sure about RN code syntax, but I've ready code with jQuery+poorJS, which looks like this:
$.ajax({
url: "load-image-url", // URL FOR GET REQUEST
cache:false,
xhr: function() { // ACTUALLY THIS PART CAN BE USED AND CUSTOMIZED BY YOU
let xhr = new XMLHttpRequest();
xhr.responseType= 'blob'
return xhr;
},
success: function(data) {
let url = window.URL || window.webkitURL;
$('#image').attr('src', url.createObjectURL(data));
},
error: function(err) {
// console.log(err);
}
}).fail(function() {
$('#ss_product_image').attr('src', "default-image-url.jpg");
});
In my example I've used GET request (but you can try to modify it and test if you want, honestly IDK about that).
This is the back-end part:
public function image(Request $request, $id)
{
// HERE YOU NEED TO GET YOUR IMAGE (using $id or/and $request params) CONTENT FROM SOMEWHERE YOU WANT
$content = <CONTENT>;
return response()->make($content, 200, [
'Content-Type' => (new \finfo(FILEINFO_MIME))->buffer($content),
'Content-length' => strlen($content),
]);
}
I was able to solve this issue by using rn-blob-fetch.
The files are downloaded into a temp cache which can then be accessed for previewing and saving.
this is my function now:
downloadFiles = async (isReply) => {
let {enquiry, reply} = this.state;
this.setState({isLoading: true});
const token = await AsyncStorage.getItem('userToken');
let filePaths = [];
let fileCount = 0;
let files = enquiry.files;
if (isReply) {
files = reply.files;
}
const dirToSave =
Platform.OS == 'ios'
? RNFetchBlob.fs.dirs.DocumentDir
: RNFetchBlob.fs.dirs.DownloadDir;
new Promise((resolve, reject) => {
for (var i = 0; i < files.length; i++) {
var id = files[i].file_id;
var name = files[i].file.file_name;
var ext = extension(name);
const configOptions = Platform.select({
ios: {
appendExt: ext,
fileCache: true,
title: name,
path: `${dirToSave}/${name}`,
},
android: {
useDownloadManager: true,
notification: true,
mediaScannable: true,
fileCache: true,
title: name,
path: `${dirToSave}/${name}`,
},
});
var mime = content(ext);
let headers = {
'Content-Type': mime,
'Access-Control-Allow-Origin': '*',
'Access-Control-Allow-Method': 'POST, GET, DELETE, PUT',
Authorization: 'Bearer ' + token,
};
RNFetchBlob.config(configOptions)
.fetch('GET', BASE_API + '/enquiries/files/download/' + id, headers)
.then(async (response) => {
RNFetchBlob.fs.writeFile(
configOptions.path,
response.data,
'base64',
);
filePaths.push({
title: configOptions.title,
path: configOptions.path,
ext: extension(configOptions.title),
mime,
});
fileCount++;
if (fileCount >= files.length) {
resolve('Download Successful!');
}
})
.catch((error) => {
console.log('File Download Error: ', error.message);
reject('Download Failed');
});
}
})
.then((data) => {
this.setState({isLoading: false, filePaths});
})
.catch((error) => {
console.log('Download Promise Error: ', error);
this.setState({isLoading: false});
});
};
previewDocument = (id) => {
let {filePaths} = this.state;
if (Platform.OS == 'ios') {
RNFetchBlob.ios.openDocument(filePaths[id].path);
} else if (Platform.OS == 'android') {
RNFetchBlob.android.actionViewIntent(
filePaths[id].path,
filePaths[id].mime,
);
}
};
I am using hapijs version 17.0.1. I am trying to upload an image using ajax request on a hapijs route. Here is my AJAX code to upload profile pic:
var image_file_input = document.getElementById("user_profile_upload");
image_file_input.onchange = function () {
if(this.files != undefined)
{
if(this.files[0] != undefined)
{
var formData = tests.formdata ? new FormData() : null;
if (tests.formdata)
{
//alert(file)
formData.append('image_file', this.files[0]);
formData.append('userId', user_id);
formData.append('memberId', member_id);
}
$.ajax({
url: "/v1/User/uploadUserPic",
data: formData,
type: "POST",
dataType: "json",
contentType: false,
processData: false,
contentType: "multipart/form-data",
success: function(data){
console.log(data);
var errMsg = null;
var resData = null;
if(data.statusCode == 200)
{
resData = data.result;
}
else
{
alert(data.message)
}
},
error: function(error){
alert(error);
}
});
}
}
}
And here is my Hapijs route Code:
var uploadUserPic = {
method: 'POST',
path: '/v1/Module/uploadUserPic',
config: {
description: 'Update Image For User',
tags: ['api', 'User'],
auth: 'session',
payload: {
output: 'stream',
parse: true,
allow: 'multipart/form-data'
},
validate: {
payload: {
userId : Joi.string().regex(/^[a-f\d]{24}$/i).required(),
memberId: Joi.string().required(),
image_file: Joi.object().required(),
},
failAction: FailCallBack
}
},
handler: function (request, reply) {
var resultData = null;
var error = null;
return new Promise(function (resolve) {
var multiparty = require('multiparty');
var fs = require('fs');
var form = new multiparty.Form();
form.parse(request.payload, function (err, fields, files) {
if(err)
{
error = err;
resolve();
}
else
{
var mkdirp = require('mkdirp');
var img_dir = "./files/users/";
mkdirp(img_dir, function (err) {
if (err)
{
error = err;
console.error(err);
resolve();
}
else
{
var oldpath = files.image_file.path;
var newpath = "./files/users/"+requestPayload.userId+".png";
fs.rename(oldpath, newpath, function (err) {
if(err)
{
error = err;
}
resolve();
});
}
});
}
});
}).then(function (err, result) {
if(err) return sendError(err);
if(error) return sendError(error)
return {
"statusCode": 200,
"success": true
};
});
}
}
The above code gives me following error cannot read property 'content-length' of undefined on line form.parse(request.payload, function (err, fields, files) {});
Please let me know If I am doing something wrong. If I replace the url in ajax request with anohter url that I have written in php then it works perfectly. which means that something is wrong with my hapijs/nodejs code.
There's a good post on how to handle file uploads in Hapi.js (written in version 16) https://scotch.io/bar-talk/handling-file-uploads-with-hapi-js
Since you are using payload.parse = true, I am not seeing a particular reason why you have to use multiparty. I have the following working code that would save files (of any type) uploaded from client into uploads directory on the server (Please do not use directly on production as no sanitation is done)
{
path: '/upload',
method: 'POST',
config: {
payload: {
output: 'stream',
parse: true,
allow: 'multipart/form-data'
},
validate: {
payload: {
files: Joi.array().single()
}
}
},
handler: function(request) {
const p = request.payload, files = p.files
if(files) {
console.log(`${files.length} files`)
files.forEach(async file => {
const filename= file.hapi.filename
console.log(`Saving ${filename} to ./uploads`)
const out = fs.createWriteStream(`./uploads/${filename}`)
await file.pipe(out)
})
}
return {result: 'ok'}
}
}
You can use the following curl command to test
curl http://localhost:8080/upload -F 'files=#/path/to/a/note.txt' -F 'files=#/path/to/test.png' -vvv
There are a few issues with your code. First in your $.ajax call, you have specified contentType twice, although it's not a syntax error but it's careless to code like that. Second the function's signature inside your .then() block is incorrect. You are mixing the idea of Promise and callback. I don't think the following line will be triggered
if(err) return sendError(err);
One last trivial thing, you said you are using Hapi 17 but based on the handler function's signature
handler: function (request, reply) {
...
Seems you are not totally onboard with Hapi17 as the new signature is
handler: function (request, h) {
And it's not just the rename of reply to h.
I have the following function in my WIX website, which is making a request to an external API:
export function current_pull(page, per_page, filter_mode, view_id) {
const url_request = URL + page + '&per_page=' + per_page + '&filtermode=' + filter_mode + '&view_id=' + view_id;
return fetch(url_request, {
method: 'get',
headers: {
'X-AUTH-TOKEN': API_KEY,
'X-SUBDOMAIN': SUBDOMAIN
},
}).then(function(response) {
if (response.status >= 200 && response.status < 300) {
console.log("current answered");
var items = response.json();
console.log(items);
} else {
console.log("there was an error" + response.statusText);
}
})
.catch( (err) => {
console.log(err);
});
}
The console.log(items); outputs:
Promise {
_c: [],
_a: undefined,
_s: 0,
_d: false,
_v: undefined,
_h: 0,
_n: false }
How do I get the actual API response
response.json() is also a Promise so in this case you need to change your code as follows:
response.json().then(items => console.log(items))
You may check further documentation here: Body.json()
I'm trying to implement custom rest client build on top of simple fetch.
If 401-403 response received, it must "redirect" app to login page.
According documentation, if 401-403 error received, it will magically calls authClient with the AUTH_ERROR, but it doesn't.
Can someone explain, how to connect it?
I'm trying to call rest client from component: It's simple reimplementation of 'simpleRestClient'
componentDidMount() {
restClient(CREATE, 'api/method', {
CurrentTime: new Date()
})
.then(o =>
{
this.setState({ Msg: Object.values(o.data.ServerTime) });
});
}
restclient implementation:
export const fetchJson = (url, options = {}) => {
const requestHeaders =
options.headers ||
new Headers({
Accept: 'application/json',
});
if (
!requestHeaders.has('Content-Type') &&
!(options && options.body && options.body instanceof FormData)
) {
requestHeaders.set('Content-Type', 'application/json');
}
if (options.user && options.user.authenticated && options.user.token) {
requestHeaders.set('Authorization', options.user.token);
}
return fetch(url, { ...options, headers: requestHeaders })
.then(response =>
response.text().then(text => ({
status: response.status,
statusText: response.statusText,
headers: response.headers,
body: text,
}))
)
.then(({ status, statusText, headers, body }) => {
if (status < 200 || status >= 300) {
return Promise.reject(
new HttpError(
(json && json.message) || statusText,
status,
json
)
);
}
let json;
try {
json = JSON.parse(body);
} catch (e) {
// not json, no big deal
}
return { status, headers, body, json };
});
};
const httpClient = (url, options = {}) => {
if (!options.headers) {
options.headers = new Headers({ Accept: 'application/json' });
}
return fetchJson(url, options);
}
Have you tried rejecting the promise with an Error rather than an HttpError?
I would like to use the retry property of the observer to try 3 times before it gives up and throws an error. However when I run the following code I get 'retry is not a function'. Any ideas what is going on ?
get(url: string, options?: RequestOptionsArgs): Observable<Response> {
this._log.debug('SecureHttpService#get: ' + url);
let resultObservable = Observable.create((observer) => {
this._log.debug('resultObservable');
this.tryReActivateToken().then(
(result) => {
this._log.debug('resultObservable#then#result: ' + result);
if (result === true) {
let headers = new Headers();
headers.append('Authorization', 'Bearer ' + this.access_token);
headers.append('X-Requested-With', 'XMLHttpRequest');
// headers.append('Accept', 'json');
this._log.debug(this.access_token);
let superGetObs = super.get(url, { headers: headers, withCredentials: true }).retry(3);
superGetObs.subscribe(
(next) => { observer.onNext(next); },
(error) => { observer.onError(error); },
() => { observer.onCompleted(); }
);
} else {
observer.onError(new Error('Could not log you in automatically'));
}
}, (error) => { this._log.debug('resultObservable#then#error: ' + error); observer.onError(error); });
});
return resultObservable;
}
The full error stack: http://pastebin.com/ScrzsNh0
Make sure you import the retry-operator with import "rxjs/add/operator/retry";