Visa Developer Community

Visa Dev Moderator

Re: The remote server returned an error: (400) Bad Request.

Hey @rasith,

 

Please follow these steps for VDP Playground and refer to example screenshots.

 

1. Create a folder for your VDP project app on your local machine (e.g. I created my folder on my laptop  in the C:\Users\dtranyee\Documents\A Test Project\20190920 Merchant Search test1 and called it "20190920 Merchant Search test1")

 

2. If you haven't already registered, register on VDP here - https://developer.visa.com/portal/auth/register

 

3. Create a Project that uses Two-Way SSL authentication. You can refer to the Working with Visa APIs guide here - https://developer.visa.com/pages/working-with-visa-apis

20190916 Create a Project.png

 

4. When you create a Two-Way SSL project, we recommend users to select the "Generate a CSR for me" option. Read the pop-up window and click on "Submit" button.

 

20190916 Generate CSR Pop Up Save Private Key Window.png 

5. Download and save your "Certificate Private Key".

20190916 Downloaded Cert Private Key.png

 

6. After you create a project app that uses Two-Way SSL (for example the Visa Account Updater API uses Two-Way SSL), go to the Dashboard and click on the project app you have created. 

 

7. Navigate to the left hand side menu and click on "Credentials", then download the Public Key on that page.

20190920 Download Public Key.png

 

8. The public key and private key should be saved in your folder for your VDP project app on your local machine (e.g.  C:\Users\dtranyee\Documents\A Test Project\20190920 Merchant Search test1 and called it "20190920 Merchant Search test1" as seen in step 1 above)

20190920 Test Project Create Folder app example1.png

 

9. Download VDP Playground from the Assets section and Run it.

20190917 Assets VDP Playground.png

 

10. Once VDP Playground is open, browse for your Public Key and Private key and load it to the VDP Playground application.

20190920 public key and private key playground example2.png

 

11. Click on the JKS button to create a keystore. Enter a password (e.g. Visa123) and name the file clientkeystore or anything that you want to call it. I name my JKS file clientkeystore. Then click on confirm. Save the clientkeystore.jks file in the same folder that you have created in step 1.

20190920 clientkeystore folder example8.png

 

12. Enter in your project app credentials into your VDP Playground that you retrieve from the VDP portal.

20190920 Credentials.png

20190920 User ID PW example3.png

 

13. Enter in Endpoint and select Post.

20190920 endpoint post example4.png

 

14. Enter in Host and Port. Also, enable the Proxy. Host is userproxy.visa.com and Port is 8080.

20190920 proxy example5.png

 

15. Enter in the Request payload.

20190920 Request payload example9.png

 

16. Click Run and you should see a successful Response and Response Header.

 

20190920 Response Header Response example10.png

 

Was your question answered? Don't forget to click on "Accept as Solution" to help other devs find the answer to the same question.

Thanks,
Diana

Helper

Re: The remote server returned an error: (400) Bad Request.

Thanks for your reply.

error.png

We tried the steps what you have guided me. But i got same error in response box.

 

Helper

Re: The remote server returned an error: (400) Bad Request.

A 400 Bad Request Error indicates that the server is unable to process the request sent by the client, due to an issue that is perceived by the server to be a client problem. 

see: chegg free trial

Visa Dev Moderator

Re: The remote server returned an error: (400) Bad Request.

Hey @rasith,

 

Can you please try again? Are you able to call Hello World? To make a call to Hello World, try using your project app's User Id, Password, Public Key and Private key then make sure to hit the "JKS" button before you hit "Run".

 

Endpoint is https://sandbox.api.visa.com/vdp/helloworld

 

Please refer to user guide (https://developer.visa.com/pages/visa-developer-center-playground)

 

20190924 VDP Playground Hello World Example.png

 

Please let us know if you're still experiencing a problem or if the issue is resolved.

 

Was your question answered? Don't forget to click on "Accept as Solution" to help other devs find the answer to the same question.

Thanks,
Diana