Salesforce REST API Login?
Solution 1
What you're describing, sounds like OAuth (just because you mention access-token).
There's a good example of OAuth being used in Salesforce below...
http://wiki.developerforce.com/page/Digging_Deeper_into_OAuth_2.0_at_Salesforce.com
Solution 2
SOLUTION:
Hi all, I have arrived the solution to my problem. Actually, I was examining the sample given in the link http://wiki.developerforce.com/page/Getting_Started_with_the_Force.com_REST_API . Then implemented OAuth 2.0 Username-Password Flow which is from https://login.salesforce.com/help/doc/en/remoteaccess_oauth_username_password_flow.htm#send_up_response. It solves my problem.
Solution 3
This is sample Java code that uses Username-Password OAuth flow:
public class AccountQuery
{
// The connection data
private static final String query = "SELECT Name, Idfrom Account";
private static final String clientId = "theID";
private static final String clientSecret = "theSecret";
// THis is meaningless in our context
private static final String redirectUri = "https://localhost:8443/_callback";
private static final String environment = "https://login.salesforce.com";
private static String tokenUrl = null;
private static final String username = "username";
private static final String password = "passwordPlusSecret";
private static String accessToken = null;
private static String instanceUrl = null;
public static void main( String[] args )
{
// Step 0: Connect to SalesForce.
System.out.println("Getting a token");
tokenUrl = environment + "/services/oauth2/token";
HttpClient httpclient = new HttpClient();
PostMethod post = new PostMethod(tokenUrl);
post.addParameter("grant_type", "password");
post.addParameter("client_id", clientId);
post.addParameter("client_secret", clientSecret);
post.addParameter("redirect_uri", redirectUri);
post.addParameter("username", username);
post.addParameter("password", password);
try {
httpclient.executeMethod(post);
try {
JSONObject authResponse = new JSONObject(new JSONTokener(new InputStreamReader(post.getResponseBodyAsStream())));
System.out.println("Auth response: " + authResponse.toString(2));
accessToken = authResponse.getString("access_token");
instanceUrl = authResponse.getString("instance_url");
System.out.println("Got access token: " + accessToken);
} catch (JSONException e) {
e.printStackTrace();
}
} catch (HttpException e1) {
e1.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
} finally {
post.releaseConnection();
}
System.out.println("We have an access token: " + accessToken + "\n" + "Using instance " + instanceUrl + "\n\n");
HttpClient httpclient = new HttpClient();
GetMethod get = new GetMethod(instanceUrl + "/services/data/v28.0/query");
// set the token in the header
get.setRequestHeader("Authorization", "OAuth " + accessToken);
// set the SOQL as a query param
NameValuePair[] params = new NameValuePair[1];
params[0] = new NameValuePair("q",query);
get.setQueryString(params);
try {
httpclient.executeMethod(get);
if (get.getStatusCode() == HttpStatus.SC_OK) {
// Now lets use the standard java json classes to work with the results
JSONObject response = new JSONObject( new JSONTokener( new InputStreamReader(get.getResponseBodyAsStream())));
System.out.println("Query response: "+ response.toString(2));//.substring(0, 500));
System.out.println(response.getString("totalSize") + " record(s) returned\n\n");
JSONArray results = response.getJSONArray("records");
Account[] accounts = new Gson().fromJson(results.toString(), Account[].class);
return accounts;
}
}
catch (Exception e){
e.printStackTrace();
}finally {
get.releaseConnection();
}
}
}
Easwaramoorthy K
Computer programmer with the interest of iOS, Android, Cross platform mobile developments, Core Java and Java web component development, http://stackoverflow.com/users/flair/1954390.png?theme=dark
Updated on July 11, 2020Comments
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Easwaramoorthy K almost 4 years
I am examining a sample which is in the salesforce developer site.
In that sample when we click a link it will be redirected to the salesforce login page. If the login successful, then an access token is issued.
I dont want my application to redirect to the salesforce login page. In the existing sample the environment variable is set to,
"https://login.salesforce.com"
What should I do to avoid redirecting to salesforce login page.
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Easwaramoorthy K about 12 yearsThanks for your reply. I found that i have to use Username-Password oauth flow for my need. login.salesforce.com/help/doc/en/… => this is the link we have to refer. But although i have followed the steps my app still redirecting. :(
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David about 12 yearsAre you following the "oauth dance" steps correctly? Remember you need 3 things, request-token-url, api-url, access-token-url.
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Easwaramoorthy K about 12 yearsSOLUTION: Hi all, I have arrived the solution to my problem. Actually, I was examining the sample given in the link wiki.developerforce.com/page/… . Then implemented OAuth 2.0 Username-Password Flow which is from login.salesforce.com/help/doc/en/…. It solves my problem. Thanks for your response.
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Gareth Jordan almost 6 yearsJust so you know the username password flow is only recommended for testing purposes, if you need a non use interaction for the JWT Bearer token for is recommended
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Gusk almost 5 yearsAnother answer lost due to link rot