JSON error received during token refresh error message in LSEG-data for Phyton.

Question

Reaching out on behalf of client a professor in a University.

I have shared the steps to client in getting his APP KEY so he can access the Workspace API via Codebook.

Client followed the steps and got an API key. Then, he installed LSEG-data for Python and attempted a platform session using OAuth v1 Password Grant with my App Key, username and password.  The session fails during token refresh with:

Malformed JSON received during token refresh: '400 Bad Request'

[Error 400] - {}

session.open() returned: OpenState.Closed

Can you please confirm the below:

1. That clients App Key is enabled for LSEG Data Library for Python / platform access,

2. The exact User ID or Machine ID I should use for OAuth v1 Password Grant,

3. Whether the password is the same as my Workspace web password or a separate platform/Machine ID password,

4. Whether my account has the required Data Platform entitlement?

5. Any advice or recommendation?

Jirapongse · Answer

@Kevin602

Thank you for reaching out to us.

For workspace users, the client need to use the LSEG Data Library for Python with the Workspace desktop session.

The client can change the default session to the "desktop.workspace".

"sessions": {

        "default": "desktop.workspace",

        "platform": {

            "ldp": {

Then, set the application key in the "desktop.workspace" configuration.

"desktop": {

            "workspace": {

                "app-key": "YOUR APP KEY GOES HERE!"

            }

        }

    }

Next, run the examples on GitHub to retrieve data.

For the desktop.workspace session, the LSEG Workspace application must be running properly on the same machine because the library retrieves data through the LSEG Workspace application.

If the client still unable to establish the desktop.workspace session, please refer to this Eikon Data API and Refinitiv Data Library - Troubleshooting article.

Workspace and Data Platform are different products. Please check which product the client is using.

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