Add linkedIn Connections as Friends in My Own website using JSAPI - javascript

I am developing a site in which I have used LinkedIn JavaScript API for creating account and add LinkedIn Connections as Friends.
I have got all the connections from the LinkedIn on my page,
but how can I add them as friends with each other.
I am struggling with this
please help if anyone can,
Thanks in advance

You can find the documentation for the invitation API of Linkedin here.
However, after reading the documentation, you will see that whoever uses your application to make a new connection will be redirected in Linkedin with the corresponding "invitation message" that is sent on each invitation, so that he verifies the message (or even change it before making the invitation). Thus, your application will not be capable to create new connections, without the person that initiates the connection be informed about that.

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Getting feedback from a JavaScript application without a registering for a centralized service

I created a Chrome extension which is just HTML/CSS/JavaScript. When the user clicks on a button, I have it send a message to me. But the problem is I don't want to include any API keys or server information where the app can POST to as it can be used for abuse if someone was to extract this information from my Chrome app. Is there a method of getting a response from a web app with a public service where anyone can post to? I was thinking pastebin, but even that requires an API key.
You could ask the user to create their own key. For example, many GitHub extensions require an API key to make requests to the GitHub API, so what they do is they send you to a GitHub settings page where you can create a personal API key.

YouTube API | Javascript- Upload video to a constant channel bypassing login.

I'm building a web application that allows a specific user to upload videos to a YouTube account through the use of the YouTube API. The uploading of videos will be done by only one person & videos will be uploaded only to one account. If the YouTube account is already authorized by the app to manage the channel etc, how can I setup the application in such a way that the user bypasses the authentication/login screen every time he/she needs to upload a video? (That is when the user exits and re-enters application.)
While reading, a solution I stumbled upon a solution which was to use a refresh token but I don't know how to integrate it with the code I have currently. The code I'm using is the one available on the Google Developers site, link below.
https://developers.google.com/youtube/v3/code_samples/javascript#upload-a-video
Please note that I've gone through & read all similar questions on this forum but none provides Javascript help/solution.
Normally i would say that you should use a service account which would allow you to preauthorize the access to YouTube. However the YouTube API does not support service accounts so your going to have to do it the hard way.
You will need to authenticate your application once and save the refresh token. Then you will be able to use the refresh token again later to get a new access token. You will have to watch this application refresh tokens can expire its rare but it can happen so you should have something set up that will allow you to quickly reauthenticate it and save a new refresh token.
To my knowledge it is not possible to get a refresh token with JavaScript your going to have to use a server sided language like node.js for example. This tutorial should show you how to get offline access with node js. Node.js Quickstart

Meteor - Facebook Graph Api

I am creating a meteor app. I successfully implemented the facebook login but now the last feature I should implement is to create a chat (involving facebook messenger) between the page(admin) and the user. It should happen through the app. Could I do that with meteor or I should use javascript. The second question, if it is not possible with meteor is how to initialize the messenger conversation, if I by using the facebook user Id which I already know from the registration. I know that there are a lot of discussions about the graph-api but I could not find anything which includes meteor.
You can utilize in app deep linking to direct a user to the messenger.
fb-messenger://user/%s
the %s represents the user-id of the user who will receive the message!
Android as well as iOS will handle these requests properly.

How to send facefook notification to the users on a blog post created?

I'm developing a site similar to blog. In that I would like to add a facebook notification feature.
For example, if I created one article it should send a notification to the subscribed facebook users.
I have done facebook share. But I don't know about this.
Note: I'm using asp.net and c# for the web development.
Is this possible. if possible, can someone say a way to achieve it.
First of all You will need to create a facebook application and add your web page as a "Web Page with Facebook login": You can find this setting in application settings. After you will need to log in your blog users via facebook and ask for some basic permissions (No special permission needed for sending notifications.) And after all these steps you will be able to send notifications to your users. Here are some resources that might help you.
https://developers.facebook.com/docs/games/notifications/
https://developers.facebook.com/docs/web/gettingstarted/
Here is the C# SDK resource.

Registeration using Gmail account in asp.net javascript

I need my website users use gmail account to register to my site. And i need to implement this using javascript. I can't user server side code for this purpose.
Is there anyone who can guide me how can i do this.
Thanks in advance
You could use OAuth 2. Google has detailed documentation about how you could register a relying party and use the Authorization Code Grant Profile.
Google documentation for integrating a client side javascript application is available here: https://developers.google.com/accounts/docs/OAuth2UserAgent
Go through the documentation and if you have some specific questions with the implementation don't hesitate to come back, show your progress and explain the dofficulties you have encountered.
Once you receive the access_token in the fragment portion of the url, you could query other Google services with this token. Depending on the scopes that the user granted you when he authenticated, you will be able to access different services and level of information about this user.

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