java spark read json doesnt fill schema code example

Example 1: Read JSON files with automatic schema inference

# Read JSON files with automatic schema inference

df = spark.read.json("logs.json")
df.where("age > 21").select("name.first").show()

Example 2: spark json schema

libraryDependencies += "org.zalando" %% "spark-json-schema" % "0.6.1"