web
You’re offline. This is a read only version of the page.
close
Skip to main content

Announcements

No record found.

News and Announcements icon
Community site session details

Community site session details

Session Id :
Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / How to Transact data f...
Microsoft Dynamics CRM (Archived)

How to Transact data from my API to Dynamic 365 API

(0) ShareShare
ReportReport
Posted on by Community Member

My requirement is to Sync my database record to Dynamic 365 and also to authenticate the user.

I am trying with this code but it is not helping me out, Please help me to connect and resolve it

string api = "ujwl.api.crm8.dynamics.com/.../v9.0";

AuthenticationParameters ap = AuthenticationParameters.CreateFromResourceUrlAsync(new Uri(api)).Result;

var creds = new ClientCredential("xxx", "xxx");


AuthenticationContext authContext = new AuthenticationContext(ap.Authority);

var token = authContext.AcquireTokenAsync(ap.Resource, creds).Result.AccessToken;

using (HttpClient httpClient = new HttpClient())
{
httpClient.Timeout = new TimeSpan(0, 2, 0);
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);

HttpResponseMessage response = await httpClient.GetAsync("ujwl.api.crm8.dynamics.com/.../accounts$top=2");
}

I am not able to authenticate user nor getting the data from the server.
Is this approach correct or I need to go with the different approach.

*This post is locked for comments

I have the same question (0)
  • Suggested answer
    Michel van den Brink Profile Picture
    Michel van den Brink 4,697 on at

    Hello,

    The code snippet you are using will unfortunately not work, as is, it is not meant to authenticate with with an application id and secret, not a user's username and password.

    You would need to create an application registration in Azure authenticate with OAuth 2.0

    This article explains how that works:

    https://docs.microsoft.com/en-us/dynamics365/customer-engagement/developer/connect-customer-engagement-web-services-using-oauth

      

    May I suggest though that, for simplicy, you take a look at the CrmServiceClient class from the XrmTooling library provided my Microsoft. It makes connecting to Dynamics 365 (CRM) Online much easier and is a great wrapper around the Web API, taking care of most of the heavy lifting and allowing you to focus on your code, rather than creating API calls

    How to connect with CrmServiceClient:

    https://docs.microsoft.com/en-us/dynamics365/customer-engagement/developer/xrm-tooling/use-crmserviceclient-constructors-connect

    Quick start sample for CrmServiceClient:

    https://docs.microsoft.com/en-us/dynamics365/customer-engagement/developer/xrm-tooling/sample-quick-start-xrm-tooling-api 

    Your code sample, translated to using the CrmServiceClient would look like this:

    

    

    var client = new Microsoft.Xrm.Tooling.Connector.CrmServiceClient("username@companyname",
                    CrmServiceClient.MakeSecureString("password"),
                    "crm8", // region
                    "ujwl", // organizationname
                    useUniqueInstance: true,
                    useSsl: true,
                    isOffice365: true);

Microsoft.Xrm.Sdk.EntityCollection accounts = client.RetrieveMultiple(new Microsoft.Xrm.Sdk.Query.QueryExpression
{
    EntityName = "account",
    TopCount = 2
});
    

    


     
    

    
                      
    
                    
    
                        
                        
    
                            




 





 






 





 


    
                        
    
                         
                      
                          
                       
                        
                            
                            
     
                              
                            
    
                            
                            
                            
                                
                            
                        
                        
                  
    
                
    
              
    
            
    
          
    
        
    • 
        
        








 
                              
                            

                                

                                    

                                        
Under review

                                        
                                    

                                    

                                        
 
                                            
                                            

                                                
Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

                                            

                                            
                                            

                                                    
                                            

                                       

                                    

                                 
                                

                             
  
                            
                        

                        
 

                    

                    
                    
                    

                        
 
                                                                                       
                        

                    

                    

                

                

                    
                        







 





 
















   
       
        
   

    

        

            
Helpful resources

        

        
        





 





 








    
    

 
















    
    
    

    
        
    



        
            
            

                
Quick Links

                



	
 

	

		

			
			
		

		

			

				
Introducing the 2026 Season 1 community Super Users

				

					
Congratulations to our 2026 Super Stars!

				

			

		

	


	
 

	

		

			
			
		

		

			

				
Meet the Microsoft Dynamics 365 Contact Center Champions

				

					
We are thrilled to have these Champions in our Community!

				

			

		

	


	
 

	

		

			
				
		

		

			

				
Congratulations to the March Top 10 Community Leaders

				

					
These are the community rock stars!

				

			

		

	



            

            
        


        
        




 





 


        

         
            
                











 





 







    
    
    
    

            
            
            
    



    
    
    
        
        
        
        
        
    
 

            
        

          
        
             
              
            
            
                
              
             
              

                        
Leaderboard > 🔒一 Microsoft Dynamics CRM (Archived) 
 
                        
 
                         









 





 










 





 






 
























 





 










        
        
        
        
        
            
        

        

        
            
        

        
                

                    

                        
 
                            

                                
                                
                                
                                #1
                                
                                

                                    
                                        AS-17030037-0 Profile Picture
                                     
                                

                                

                                    

                                        























 





 












 





 


  











 





 












 





 









     


  

  
 
 
    
 


 
    

    
      
        
        

         

         
        
           
                
                
                
                
                    
                
            
            
        

        
        

        
            
              
                AS-17030037-0
                2 
                
                
                 
                
             
         
            
                
                        
                 
            

    



                                    

                                

                            

                        

                    

                

                
        
  


  
                         

                            Last 30 days
                            Overall leaderboard 
                        

              

               
            
        

        

    






    
    

        
Featured topics

    

    

  

        
        




 





 


        

        
            

                
Product updates
 
                

                Dynamics 365 release plans