How to get Token from Salesforce (by tRESTClient) in order to use OAuth connection type

[Anonymous]

Hello,

My task is to connect to Salesforce using OAuth connection Type (Basis connection type works fine).

Talend version is v.6.4.

From Salesforce I received: Client Id, Client Secret, Callback URL (host and port), but I assume I also need to have Token (in tSalesforceConnection component I need to give the path of Token File, please see attached tSalesforceConnection.png):

I tried to obtain token by tRESTClient component, configured as on attached tRESTClient.png.

I followed instruction from here: http://luan-itworld.blogspot.com/2016/03/access-salesforce-rest-api-from-talend.html 

But tRESTClient return error: 

Exception in component tRESTClient_1 (test_OAuth2_sf)
javax.ws.rs.BadRequestException: HTTP 400 Bad Request

I verified credentials from Salesforce, they work fine, the link:

https://[...address..].my.salesforce.com/services/oauth2/authorize?response_type=code&redirect_uri=https%3A%2F%2F[...address..].salesforce.com%3A433&client_id=[Client Id received from Salesforce]

works fine in the browser.

Could you please tell what I doing wrong? How to get TOKEN from Salesforce?

Much obliged for the the answer.

[Anonymous]

I would like to add some clarifications to tRESTClient configuration attached previously:

I configured the following parameters:

"client_id" = "MyClientId"

"clients_secret" = "MyClientSecret"

"grant_type" = "password"

"username" = "myUser"

"password" = "myPasswordSecurityToken" -- here I put Password concatenated with SecurityToken, as it is advised here: 

https://developer.salesforce.com/forums/?id=906F00000009BZCIA2

I verified credentials, they are correct. But still I get the error:

Exception in component tRESTClient_1 (test_OAuth2_sf)
javax.ws.rs.BadRequestException: HTTP 400 Bad Request
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.apache.cxf.jaxrs.client.AbstractClient.convertToWebApplicationException(AbstractClient.java:507)
at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:902)
at org.apache.cxf.jaxrs.client.WebClient.doInvoke(WebClient.java:863)
at org.apache.cxf.jaxrs.client.WebClient.invoke(WebClient.java:426)
at org.apache.cxf.jaxrs.client.WebClient.post(WebClient.java:456)
at import_account_project.test_oauth2_sf_0_1.test_OAuth2_sf.tRESTClient_1Process(test_OAuth2_sf.java:826)
at import_account_project.test_oauth2_sf_0_1.test_OAuth2_sf.runJobInTOS(test_OAuth2_sf.java:1228)
at import_account_project.test_oauth2_sf_0_1.test_OAuth2_sf.main(test_OAuth2_sf.java:1077)

[vatsal_ras]

Do you have a connected app in Salesforce ?

[Anonymous]

@aszczepanska , I am also trying to get access_token using the below link and encountered with '400 Bad Request' error.

Can you please help me if you were able to resolve this error and get access_token from salesforce for oauth2 authentication.