put_records() only accepts keyword arguments in Kinesis boto3 Python API

问题

from __future__ import print_function # Python 2/3 compatibility
import boto3
import json
import decimal

#kinesis = boto3.resource('kinesis', region_name='eu-west-1')
client = boto3.client('kinesis')
with open("questions.json") as json_file:
    questions = json.load(json_file)
    Records = []
    count = 0
    for question in questions:
        value1 = question['value']
        if value1 is None:
            value1 = '0'
        record = { 'StreamName':'LoadtestKinesis', 'Data':b'question','PartitionKey':'value1' }
        Records.append(record)
        count +=1
        if count == 500:
            response = client.put_records(Records)
            Records = []

This is my python script to load a array of json files to kinesis stream where I am combining 500 records to use put_records function . But I am getting an error: put_records() only accepts keyword arguments . How do I pass a list of Records to this method? Each record is a json with a partition key .

Sample Json :

[{
        "air_date": "2004-12-31",
        "answer": "FDDDe",
        "category": "AACC",
        "question": "'No. 2: 1912 Olympian; football star at Carlisle Indian School; 6 MLB seasons with the Reds, Giants & Braves'",
        "round": "DDSSS!",
        "show_number": "233",
        "value": "$200"
    }]

回答1:

    from __future__ import print_function # Python 2/3 compatibility
    import boto3
    import json
    import decimal
    import time


    def putdatatokinesis(RecordKinesis):
        start = time.clock()
        response = client.put_records(Records=RecordKinesis, StreamName='LoadtestKinesis')
        print ("Time taken to process" +  len(Records) + " is " +time.clock() - start)
        return response
client = boto3.client('kinesis')
firehoseclient = boto3.client('firehose')
with open("questions.json") as json_file:
    questions = json.load(json_file)
    Records = []
    RecordKinesis = []
    count = 0
    for question in questions:
        value1 = question['value']
        if value1 is None:
            value1 = '0'
        recordkinesis = { 'Data':b'question','PartitionKey':value1 }
        RecordKinesis.append(recordkinesis)
        Records.append(record)
        count +=1
        if count == 500:
            putdatatokinesis(RecordKinesis)
            Records = []
            RecordKinesis = []

This worked , The idea is to pass the argument Records as a keyed argument .

回答2:

When passing multiple records, you need to encapsulate the records in a list of records, and then add the stream identifier.

Format is like so:

{
   "Records": [ 
      { 
         "Data": blob,
         "ExplicitHashKey": "string",
         "PartitionKey": "string"
      },
      {
         "Data": "another record",
         "ExplicitHashKey": "string",
         "PartitionKey": "string"
      }
   ],
   "StreamName": "string"
}

See the Kinesis docs for more info.

来源：https://stackoverflow.com/questions/37484987/put-records-only-accepts-keyword-arguments-in-kinesis-boto3-python-api