How to access files on DO Spaces via Pyspark

I struggle to connect pyspark to DO Spaces in order to load data. Any help is welcomed. This is my current code inspired by the ASW S3 connection, unfortunately not working.

sc = SparkContext('local')
spark = SparkSession(sc)

hadoop_conf=sc._jsc.hadoopConfiguration()
hadoop_conf.set("fs.s3n.impl", "org.apache.hadoop.fs.s3native.NativeS3FileSystem")
hadoop_conf.set("fs.s3n.awsAccessKeyId", DOAccessKey)
hadoop_conf.set("fs.s3n.awsSecretAccessKey", DOSecretKey)

df=spark.read.json("https://...../sampleData/file.json")
df.show()