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POLinkedIn integration - Establish a requestToken
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copied!<p>I'm developing (trying for now) portlet that will be integrated with LinkedIn.</p> <p>Following the documentation about it: <a href="http://developer.linkedin.com/docs/DOC-1008" rel="nofollow noreferrer">http://developer.linkedin.com/docs/DOC-1008</a> --> The first step to authorizing a LinkedIn member is requesting a requestToken. This request is done with an HTTP POST. For the requestToken step, the following components should be present in your string to sign:</p> <pre><code>* HTTP Method (POST) * Request URI (https://api.linkedin.com/uas/oauth/requestToken) * oauth_callback * oauth_consumer_key * oauth_nonce * oauth_signature_method * oauth_timestamp * oauth_version </code></pre> <p>I have already API(it's <em>oauth_consumer_key</em>) key and i need to generate specific URL string. Have next java code for this URL and HTTP connection:</p> <pre><code>private void processAuthentication() { Calendar cal = Calendar.getInstance(); Long ms = cal.getTimeInMillis(); Long timestamp = ms / 1000; Random r = new Random(); Long nonce = r.nextLong(); String prefixUrl = "https://api.linkedin.com/uas/oauth/requestToken"; String oauthCallback = "oauth_callback=http://localhost/"; String oauthConsumerKey = "&oauth_consumer_key=my_consumer_key"; String oauthNonce = "&oauth_nonce=" + nonce.toString(); String oauthSignatureMethod = "&oauth_signature_method=HMAC-SHA1"; String oauthTimestamp = "&oauth_timestamp=" + timestamp.toString(); String oauthVersion = "&oauth_version=1.0"; String mainUrl = oauthCallback + oauthConsumerKey + oauthNonce + oauthSignatureMethod + oauthTimestamp + oauthVersion; try { prefixUrl = URLEncoder.encode(prefixUrl, "UTF-8") + "&" + URLEncoder.encode(mainUrl, "UTF-8"); URL url = new URL(prefixUrl); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("POST"); String msg = connection.getResponseMessage(); } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } </code></pre> <p>The question is next,for those, who had faced this problem: <strong>How should really look URL string for connection and how response is received?</strong></p> <p>For URL, it's interested the example of URL, you generated. And for response interested, method to get it. As i understand, after HTTP connection been established,that response is:</p> <pre><code>connection.getResponseMessage(); </code></pre>

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