This fork just removes the boto dependencies to help reduce the aws lambda package size
DynamoDB json util to load and dump strings of Dynamodb json format to python object and vise-versa
just use pip:
pip install dynamodb-json
The dynamodb-json util works the same as json loads and dumps functions:
import time
import uuid
from datetime import datetime
from decimal import Decimal
from dynamodb_json import json_util as json
json_ = {"MyString": "a",
"num": 4,
"MyBool": False,
"my_dict": {"my_date": datetime.utcnow()},
"MyNone": None,
"MyZero": 0,
"myDecimal": Decimal("19.2"), # converts Decimal to float, load it as float
"myLong": long(1938475658493),
"MyNestedDict": {
"my_other_nested": {
"name": "John",
"surname": "Lennon",
"MyOtherNone": None,
"floaty": float(29.4),
"myList": [1, 3, 4, 5, 6, "This Is Sparta!"],
"mySet": {1, 3, 4, 5, 6}, # converts set to list, returns as list
"myUUID": uuid.uuid4(), # converts uuid to string, loads it as string
"time": time.time() # converts it to seconds python float, loads it as float
}
}
}
dynamodb_json = json.dumps(json_)
# {
# "my_dict": {"M": {"my_date": {"S": "2017-04-22T14:41:35.780000"}}},
# "MyBool": {"BOOL": false}, "MyNone": {"NULL": true},
# "MyNestedDict": {
# "M": {"my_other_nested": {
# "M": {"myUUID": {"S": "2f4ad21e098f49b18e22ad209779048b"},
# "surname": {"S": "Lennon"}, "name": {"S": "John"},
# "mySet": {"L": [{"N": "1"}, {"N": "3"}, {"N": "4"}, {"N": "5"}, {"N": "6"}]},
# "floaty": {"N": "29.4"}, "time": {"N": "1492872095.78"},
# "myList": {"L": [{"N": "1"}, {"N": "3"}, {"N": "4"}, {"N": "5"}, {"N": "6"}, {"S": "This Is Sparta!"}]},
# "MyOtherNone": {"NULL": true}}
# }
# }
# },
# "myDecimal": {"N": "19.2"}, "num": {"N": "4"},
# "MyString": {"S": "a"},
# "myLong": {"N": "1938475658493"},
# "MyZero": {"N": "0"}
# }
json.loads(dynamodb_json)
# {'my_dict': {'my_date': datetime.datetime(2017, 4, 22, 14, 41, 35, 780000)}, 'MyBool': False, 'MyNone': None,
# 'MyNestedDict': {
# 'my_other_nested': {'myUUID': '2f4ad21e098f49b18e22ad209779048b',
# 'surname': 'Lennon', 'name': 'John',
# 'mySet': [1, 3, 4, 5, 6],
# 'floaty': 29.4,
# 'time': 1492872095.78,
# 'myList': [1, 3, 4, 5, 6, 'This Is Sparta!'],
# 'MyOtherNone': None
# }
# },
# 'myDecimal': 19.2,
# 'num': 4,
# 'MyString': 'a',
# 'myLong': 1938475658493L,
# 'MyZero': 0
# }