Using fetch API in an addon-sdk basaed extension - firefox-addon

I want to use the new fetch API instead of the old XMLHttpReuest in my extension, but seems like fetch is not available in the extension's context.
I even tried to use the fetch API that is attached to the hidden window, but got an error.
var fetch = Cc['#mozilla.org/appshell/appShellService;1']
.getService(Ci.nsIAppShellService).hiddenDOMWindow
.fetch;
Here is the error message: TypeError: 'fetch' called on an object that does not implement interface Window.
So is there anyway to take advantage of this new API in an extension?

this works for me - assuming the new jpm add-on SDK
const { Cu } = require("chrome");
Cu.importGlobalProperties(["fetch"]);
now you use it just like you would in a web page
fetch('http://cross.origin.works.too/huzzah.html')
.then(response => response.json())
.then( //.... etc

Related

Get Response from CREATE_STREAM

We upload a document from SAPUI5 to our SAP System using the CREATE_STREAM Method of the oData Service in ABAP. The creation of the document works fine.
What we would like to achieve is to get the response back to SAPUI5. Especially when there is an error during the creation of the document in the backend.
In Frontend we use the uploadSet Control.
...oUploadSet.uploadItem(oItem);
In the Backend we create a message with
...lo_message_container->add_message( iv_msg_type = /iwbep/cl_cos_logger=>error
iv_msg_number = '018'
iv_msg_id = lv_msg_id
iv_add_to_response_header = abap_true
)....
We can find the created message in the error protocol of our gateway server (/IWFND/ERROR_LOG). But how can this message be retrieved in SAPUI5 and used in the MessageManger Control?
We tried the onUploadCompleted Control but we can't find any response data there.
Can somebody explain how the response or a message header from the CREAT_STREAM method can be used in SAPUI5?
The "new" UploadSet control is kinda half-baked imo. The response will get lost in some internal method. This internal method will then trigger onUploadCompleted and you get nothing but useless information.
Lucky for us we can easily overwrite this internal stuff. UploadSet has an aggregation Uploader. We have to provide our own Uploader. Problem solved. Here is the line that needs to be modified.
sap.ui.define([
"sap/m/upload/Uploader",
...
], function (Uploader, ...) {
return Uploader.extend("my.custom.control.Uploader", {
uploadItem: function (oItem, aHeaders) {
// beginning of the method. take it from the official sources
oXhr.onreadystatechange = function () {
const oHandler = that._mRequestHandlers[oItem.getId()];
if (this.readyState === window.XMLHttpRequest.DONE && !oHandler.aborted) {
// we need to return the xhr object. it contains the response!
that.fireUploadCompleted({ item: oItem, xhr: oXhr });
}
};
// .. rest of the method
}
});
});
Use it like this
<mvc:View xmlns:custom="my.custom.control" ....>
<UploadSet items="....">
.....
<uploader>
<custom:Uploader uploadUrl="......"
uploadCompleted=".onUploadCompleted"
uploadStarted=".onUploadStarted" />
</uploader>
</UploadSet>
Edit: Your own uploader also means implementing your own event handlers (uploadAborted, uploadCompleted, uploadProgressed, uploadStarted). See the official documentation for more information about the events.

Call Graph API from SharePoint

I need to call Graph API from spfx webpart.
Previously we used the following method:
import { MSGraphClient } from '#microsoft/sp-client-preview';
But later we got to know that MSGraphClient is depreciated now in sp-client-preview.
I checked the following method which is mentioned in Microsoft docs also.
import { MSGraphClient } from '#microsoft/sp-http';
But it is giving an error as following:
Module '"d:/O365/upload-onedrive/node_modules/#microsoft/sp-http/dist/index-internal"' has no exported member 'MSGraphClient'
SPFx version we are using now is 1.6
Is there any way call Graph API from spfx now?
Of course we can use Graph in SPFx.
Graph+adal+SPFx steps:
Create an application in Azure portal. Click the manifest, then change "oauth2AllowImplicitFlow" value to true
Go to Settings->Required Permissions->ADD->Select an API->Microsoft Graph, select the permission and then Grant Permissions.
Build HelloWorld SPFx project : https://learn.microsoft.com/en-us/sharepoint/dev/spfx/web-parts/get-started/build-a-hello-world-web-part
Add and IAdalConfig.ts and WebPartAuthenticationContext.js patch files
Tips: If you have no adal module in node_modules/#types folder, you'd better manually install the module using the command : npm install #types/adal#1.0.29
Add the following code to render()
// Make an AJAX request to the Graph API and print the response as JSON.
var getToken;
var getCurrentUser = function (access_token) {
var xhr = new XMLHttpRequest();
xhr.open('GET', 'https://graph.microsoft.com/v1.0/me', true);
xhr.setRequestHeader('Authorization', 'Bearer ' + access_token);
xhr.onreadystatechange = function () {
if (xhr.readyState === 4 && xhr.status === 200) {
// Do something with the response
getToken=JSON.stringify(JSON.parse(xhr.responseText), null, ' ');
console.log('get Graph APi information=='+getToken);
} else {
// TODO: Do something with the error (or non-200 responses)
// console.log(' error');
}
};
xhr.send();
There is actually no reason to create any applications in the Azure side, it's all automatic and taken care of by SharePoint. See following documentation for details. We did change the API structure slightly between preview and GA, but the basics have remained the same with MSGraphClient usage and no reason for any manual access token handling.
https://learn.microsoft.com/en-us/sharepoint/dev/spfx/use-msgraph

React native PouchDB get hangs

I have a promise chain where I get the content from local DB, update it with the latest fetched from API. This cycle is run whenever user eg opens a content. It works well. Except when the user is opening the app through a deep link. Eg, I go to the company website, I have the deep link option in the safari, I open it. It successfully fetches the content opened from the website, goes into the promise lifecycle where it tries to load and update the content but it just hangs. All input data is correct and it doesn't make sense why it hangs at all.
PouchDB is using adapter pouchdb-adapter-react-native-sqlite with react-native-sqlite-2
createDBIndex()
.then(() => {
console.groupCollapsed('Updating existing content');
console.log(toUpdateArray);
console.log('Fetching articles and indexes');
return Promise.all(toUpdateArray.map(({ _id }) => DB.articles.get(_id)));
})
.then(dbArticles => {
console.log('Resolving finders-keepers');
console.log(dbArticles);
const updatedContent = dbArticles.map(dbItem => {
const toUpdate = toUpdateArray.find(item => item._id === dbItem._id);
return {
...dbItem,
...toUpdate,
expire: moment().add(1, 'd').format()
};
});
return DB.articles.bulkDocs(updatedContent).then(() => updatedContent);
})
.then(updatedDBArray => {
console.log('update result', updatedDBArray);
console.groupEnd();
return updatedDBArray;
})
The last console.log it gives is Fetching articles and indexes and the whole app freeze. tried to print the PouchDB get function result or error but nothing. It doesn't get resolved or rejected.
What I can share is that recently people have problems using PouchDB in a React Native environment which is using AsynchStorage as its backing storage. Take a look at this question and that question and also this issue.

SAPUI5 ODataModel metadata $format=xml

i am trying to connect sapui5/openui5 ODataModel to an odata-server. I want to use a nodejs server with package simple-odata-server. Unfortunately this odata server provides metadata only in xml-format. But sapui5 tries to load metadata in json-format.
Before i switch to another odata server, i want to check, wether sapui5 can load metadata in xml-format. I tried to create the model with several parameters, but ODataModel still tries to load metadata as json.
var oModel = new ODataModel("/odata", {
"metadataUrlParams": "$format=xml",
"json": false
});
Does anybody know, wether i can switch to $format=xml
Thanks in advance,
Torsten
As far as I know the OData protocol metadata is always provided as XML, never seen metadata in JSON format. Also my n-odata-server Qualiture mentioned in the comment above does it. But I never had problems with SAPUI5. It requests the metadata, gets the xml stream and works with it.
Since the metadataUrlParams parameter is of type map I'd suppose it would at least do what you intend like this:
var oModel = new ODataModel("/odata", {
"metadataUrlParams": {
"$format": "xml"
}
});
https://sapui5.hana.ondemand.com/sdk/#docs/api/symbols/sap.ui.model.odata.ODataModel.html#constructor

How to retrieve Medium stories for a user from the API?

I'm trying to integrate Medium blogging into an app by showing some cards with posts images and links to the original Medium publication.
From Medium API docs I can see how to retrieve publications and create posts, but it doesn't mention retrieving posts. Is retrieving posts/stories for a user currently possible using the Medium's API?
The API is write-only and is not intended to retrieve posts (Medium staff told me)
You can simply use the RSS feed as such:
https://medium.com/feed/#your_profile
You can simply get the RSS feed via GET, then if you need it in JSON format just use a NPM module like rss-to-json and you're good to go.
Edit:
It is possible to make a request to the following URL and you will get the response. Unfortunately, the response is in RSS format which would require some parsing to JSON if needed.
https://medium.com/feed/#yourhandle
⚠️ The following approach is not applicable anymore as it is behind Cloudflare's DDoS protection.
If you planning to get it from the Client-side using JavaScript or jQuery or Angular, etc. then you need to build an API gateway or web service that serves your feed. In the case of PHP, RoR, or any server-side that should not be the case.
You can get it directly in JSON format as given beneath:
https://medium.com/#yourhandle/latest?format=json
In my case, I made a simple web service in the express app and host it over Heroku. React App hits the API exposed over Heroku and gets the data.
const MEDIUM_URL = "https://medium.com/#yourhandle/latest?format=json";
router.get("/posts", (req, res, next) => {
request.get(MEDIUM_URL, (err, apiRes, body) => {
if (!err && apiRes.statusCode === 200) {
let i = body.indexOf("{");
const data = body.substr(i);
res.send(data);
} else {
res.sendStatus(500).json(err);
}
});
});
Nowadays this URL:
https://medium.com/#username/latest?format=json
sits behind Cloudflare's DDoS protection service so instead of consistently being served your feed in JSON format, you will usually receive instead an HTML which is suppose to render a website to complete a reCAPTCHA and leaving you with no data from an API request.
And the following:
https://medium.com/feed/#username
has a limit of the latest 10 posts.
I'd suggest this free Cloudflare Worker that I made for this purpose. It works as a facade so you don't have to worry about neither how the posts are obtained from source, reCAPTCHAs or pagination.
Full article about it.
Live example. To fetch the following items add the query param ?next= with the value of the JSON field next which the API provides.
const MdFetch = async (name) => {
const res = await fetch(
`https://api.rss2json.com/v1/api.json?rss_url=https://medium.com/feed/${name}`
);
return await res.json();
};
const data = await MdFetch('#chawki726');
To get your posts as JSON objects
you can replace your user name instead of #USERNAME.
https://api.rss2json.com/v1/api.json?rss_url=https://medium.com/feed/#USERNAME
With that REST method you would do this: GET https://api.medium.com/v1/users/{{userId}}/publications and this would return the title, image, and the item's URL.
Further details: https://github.com/Medium/medium-api-docs#32-publications .
You can also add "?format=json" to the end of any URL on Medium and get useful data back.
Use this url, this url will give json format of posts
Replace studytact with your feed name
https://api.rss2json.com/v1/api.json?rss_url=https://medium.com/feed/studytact
I have built a basic function using AWS Lambda and AWS API Gateway if anyone is interested. A detailed explanation is found on this blog post here and the repository for the the Lambda function built with Node.js is found here on Github. Hopefully someone here finds it useful.
(Updating the JS Fiddle and the Clay function that explains it as we updated the function syntax to be cleaner)
I wrapped the Github package #mark-fasel was mentioning below into a Clay microservice that enables you to do exactly this:
Simplified Return Format: https://www.clay.run/services/nicoslepicos/medium-get-user-posts-new/code
I put together a little fiddle, since a user was asking how to use the endpoint in HTML to get the titles for their last 3 posts:
https://jsfiddle.net/h405m3ma/3/
You can call the API as:
curl -i -H "Content-Type: application/json" -X POST -d '{"username":"nicolaerusan"}' https://clay.run/services/nicoslepicos/medium-get-users-posts-simple
You can also use it easily in your node code using the clay-client npm package and just write:
Clay.run('nicoslepicos/medium-get-user-posts-new', {"profile":"profileValue"})
.then((result) => {
// Do what you want with returned result
console.log(result);
})
.catch((error) => {
console.log(error);
});
Hope that's helpful!
Check this One you will get all info about your own post........
mediumController.getBlogs = (req, res) => {
parser('https://medium.com/feed/#profileName', function (err, rss) {
if (err) {
console.log(err);
}
var stories = [];
for (var i = rss.length - 1; i >= 0; i--) {
var new_story = {};
new_story.title = rss[i].title;
new_story.description = rss[i].description;
new_story.date = rss[i].date;
new_story.link = rss[i].link;
new_story.author = rss[i].author;
new_story.comments = rss[i].comments;
stories.push(new_story);
}
console.log('stories:');
console.dir(stories);
res.json(200, {
Data: stories
})
});
}
I have created a custom REST API to retrieve the stats of a given post on Medium, all you need is to send a GET request to my custom API and you will retrieve the stats as a Json abject as follows:
Request :
curl https://endpoint/api/stats?story_url=THE_URL_OF_THE_MEDIUM_STORY
Response:
{
"claps": 78,
"comments": 1
}
The API responds within a reasonable response time (< 2 sec), you can find more about it in the following Medium article.

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