{"id":12721,"date":"2014-04-04T01:09:26","date_gmt":"2014-04-03T19:39:26","guid":{"rendered":"http:\/\/www.tothenew.com\/blog\/?p=12721"},"modified":"2016-12-19T15:16:43","modified_gmt":"2016-12-19T09:46:43","slug":"using-the-instagram-login-api-via-grails","status":"publish","type":"post","link":"https:\/\/www.tothenew.com\/blog\/using-the-instagram-login-api-via-grails\/","title":{"rendered":"Using the Instagram Login API via Grails"},"content":{"rendered":"

In my current web application, I had to integrate login functionality via Instagram. To do so, I had to go through the following steps:<\/p>\n

1. First you have to register your application using this link<\/a>. In order to register your application, you need to have an Instagram account which can be done through Instagram’s mobile application.<\/p>\n

2.After registering your application you will get the following credentials:
\n– client_id<\/strong><\/em>
\n– client secret<\/strong><\/em><\/p>\n

3. Once you have the required access credentials for your app, login into Instagram using the following piece of code:<\/p>\n

[code]
\ndef loginInstagram() {
\n String redirectUri = ‘http:\/\/abc.com:8080\/sample\/instagramAnalysis\/instagramCallBack’
\n String clientId = &quot;123456778909jnjfnjnjfrgnjgn&quot;
\n String oAuthUrl=&quot;https:\/\/api.instagram.com\/oauth\/authorize\/?client_id=&quot;
\n String instagramOAuthUrl = [oAuthUrl, clientId, &quot;&amp;redirect_uri=&quot;, redirectUri, &quot;&amp;response_type=code&quot;].join(&quot;&quot;)
\n redirect(url: instagramOAuthUrl)
\n}
\n[\/code]<\/p>\n

Here redirectUri<\/strong><\/em> refers to the URI of our application, where we will access response from Instagram’s API once the credentials are verified and login is successful.<\/p>\n

4. On successful login, Instagram provides a code<\/strong><\/em>\u00a0parameter in the response. Once we have the code\u00a0<\/strong><\/em>parameter, it can be used to get an\u00a0access_token\u00a0<\/strong><\/em>by making a post request to the URL . This URL provides us a response in JSON format which contains the logged in user’s information. You are now supposed to save this access_token<\/strong><\/em> in order to fetch Instagram data by making different API calls.<\/p>\n

[code]
\ndef instagramCallBack() {
\n User currentUser = User.findUserByUserName(springSecurityService.c urrentUser.username)
\n String clientId = &quot;123456778909jnjfnjnjfrgnjgn&quot;
\n String clientSecret = ‘123456778909jnjefjefhejhrfjehrejejjfnjnjfrgnjgn’
\n String redirectUri = ‘http:\/\/abc.com:8080\/sample\/instagramAnalysis\/instagramCallBack’
\n String accessTokenUrl = &quot;https:\/\/api.instagram.com\/oauth\/access_token&quot;<\/p>\n

Map accessTokenMap = [
\n client_id: clientId,
\n client_secret: clientSecret,
\n grant_type: ‘authorization_code’,
\n redirect_uri: redirectUri,
\n code: params.code
\n ]
\n JSONObject instagramJson = fetchInstagramAccessToken(accessTokenUrl, accessTokenMap) \/\/ extract access token from URL
\n render instagramJson
\n }
\n[\/code]<\/p>\n

To learn more about it you can follow the link http:\/\/instagram.com\/developer<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

In my current web application, I had to integrate login functionality via Instagram. To do so, I had to go through the following steps: 1. First you have to register your application using this link. In order to register your application, you need to have an Instagram account which can be done through Instagram’s mobile […]<\/p>\n","protected":false},"author":72,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":6},"categories":[7],"tags":[4840,1368,878],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/12721"}],"collection":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/users\/72"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/comments?post=12721"}],"version-history":[{"count":0,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/posts\/12721\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/media?parent=12721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/categories?post=12721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tothenew.com\/blog\/wp-json\/wp\/v2\/tags?post=12721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}