Created
May 18, 2016 18:04
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Writing Avro Without A Schema in Python
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import avro.schema | |
import io, random | |
from avro.io import DatumWriter, DatumReader | |
import avro.io | |
# Path to user.avsc avro schema | |
schema_path="user.avsc" | |
schema = avro.schema.parse(open(schema_path).read()) | |
for i in xrange(1): | |
writer = avro.io.DatumWriter(schema) | |
bytes_writer = io.BytesIO() | |
encoder = avro.io.BinaryEncoder(bytes_writer) | |
writer.write({"name": "123", "favorite_color": "111", "favorite_number": random.randint(0,10)}, encoder) | |
raw_bytes = bytes_writer.getvalue() | |
print(raw_bytes) | |
bytes_reader = io.BytesIO(raw_bytes) | |
decoder = avro.io.BinaryDecoder(bytes_reader) | |
reader = avro.io.DatumReader(schema) | |
user1 = reader.read(decoder) | |
print(" USER = {}".format(user1)) |
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{"namespace": "example.avro", | |
"type": "record", | |
"name": "User", | |
"fields": [ | |
{"name": "name", "type": "string"}, | |
{"name": "favorite_number", "type": ["int", "null"]}, | |
{"name": "favorite_color", "type": ["string", "null"]} | |
] | |
} |
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I think that line 8 with latests versions of Avro should be written as: