Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more

Reply
Anonymous
Not applicable

Error while creating a new datasource on a gateway using REST API

Request Body:

{

"datasourceType": "File",
"connectionDetails": "{\"path\":\"D:\\\\temp\\\\folderName\\\\dataFolder\\\\custPayData.xlsx\"}",
"datasourceName": "data_source_test_1_api",

"credentialDetails": {
"credentialType": "Windows",
"credentials":"{\"credentialData\":[{\"name\":\"username\", \"value\":\"DomainName\\UserName\"},{\"name\":\"password\", \"value\":\"password\"}]}",
"useEndUserOAuth2Credentials": false,
"encryptedConnection": "NotEncrypted",
"encryptionAlgorithm": "None",
"privacyLevel": "None"
}

}

Response :

{
"error": {
"code": "DMTS_InvalidEncryptionAlgorithmError",
"pbi.error": {
"code": "DMTS_InvalidEncryptionAlgorithmError",
"parameters": {},
"details": [],
"exceptionCulprit": 1
}
}
}

Headers:


header.PNG

 

 

 

5 REPLIES 5
Anonymous
Not applicable

Same issue here. Considering that this post is already half a year old, has anyone found a solution to this?

Anonymous
Not applicable

Found a solution to this. 

 

You need to encrypt your credentials first, before you can make the API call. Encryption method in C# is described here: https://docs.microsoft.com/en-us/power-bi/developer/encrypt-credentials

 

encryptionAlgorithm should be set to "RSA-OAEP"

 

See my stackoverflow post here: https://stackoverflow.com/questions/56961746/power-bi-api-post-datasource-errors-with-dmts-invaliden...

 

I am going to try and build a JS / Node based encryption function and will post here when successful.

Do you have a update?

Anonymous
Not applicable

Joining in on the party. I have the same error when trying to add azure sql db's as datasources.

 

I can set the encryptionalgorithm to RSA-OAEP to avoid this error but then I get a 

 

{'error': {'code': 'UnknownError', 'pbi.error': {'code': 'UnknownError'}}}

 

Possibly because for cloud datasources it needs to be set to none according to the docs. But maybe it can help you to set EncryptionAlgorithm to RSA-OAEP (only accepted value according to docs) and see what happens.

Hi , 
I am  able to connect to odata source if it is of type "https" , but cannot connect to "http", I am getting same issue as above. 

is "http" considered as on premise connection?

 

Helpful resources

Announcements
Power BI DataViz World Championships

Power BI Dataviz World Championships

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!

November Power BI Update Carousel

Power BI Monthly Update - November 2025

Check out the November 2025 Power BI update to learn about new features.

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.