Unknown Error on Fabric Rest API getDefinition call on Semantic Model

[BryanCarmichael]

Hi - running into an issue trying to get the defintion of a Semantic Model in a notebook.

Note that the parameters are correct as if i drop the /getDefinition from the end I get results back as expected for the Semantic Model.

Code in notebook below

import requests

import json

token_string = mssparkutils.credentials.getToken("https://api.fabric.microsoft.com/")

header = {'Content-Type':'application/json','Authorization': f'Bearer {token_string}'}

addbody = {}

addURL = 'https://api.fabric.microsoft.com/v1/workspaces/XXXXXXX/semanticModels/YYYYYY/getDefinition'

add_Response = requests.get(addURL,headers=header, data=json.dumps(addbody))

from pyspark.sql import SparkSession

from pyspark.sql import Row, Column

from pyspark.sql.functions import col, year, regexp_replace

# Initialize Spark Session

spark = SparkSession.builder.appName("JsonToDelta").getOrCreate()

# Extract the list of results

sourceData =add_Response.json()

print(sourceData)

[BryanCarmichael]

yes changed and resolved thank you 

[v-pbandela-msft]

Hi @BryanCarmichael,

Thank you for reaching out in Microsoft Community Forum.

Thank you @spencer_sa, @lbendlin   for the helpful response.

As suggested by Spencer_sa,Ibendlin,  I hope this information was helpful. Please let me know if you have any further questions or you'd like to discuss this further. If this answers your question, please "Accept as Solution" and give it a 'Kudos' so others can find it easily.

Please continue using Microsoft community forum.

Regards,
Pavan.

[spencer_sa]

As an aside, if you're doing this in a Fabric notebook, you can use semantic-link-labs (aka sempy) with the FabricRESTClient class to do away with the whole 'Get Token' and request crafting malarky.
https://learn.microsoft.com/en-us/python/api/semantic-link-sempy/sempy.fabric.fabricrestclient?view=...
https://fabric.guru/using-fabricrestclient-to-make-fabric-rest-api-calls

If this helps, please consider Accepting as a solution to help other people find it more easily.

[lbendlin · Accepted solution]

You used GET. This needs to be a POST call.