如何合并json字符串
如何合并json字符串
提问于 2020-08-21 23:19:29
我正在尝试创建一个聚合存储桶策略。我正在获取存储桶的现有策略，并添加特定的语句以使其更加四舍五入。然而，我想知道实现这一点的最好方法是什么？
以下是包含策略的原始字符串：
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "Stmt1565731301209",
"Effect": "Allow",
"Principal": {
"AWS": "arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"
},
"Action": "s3:ListBucket",
"Resource": "arn:aws:s3:::demo-reko-gaurav",
"Condition": {
"StringLike": {
"aws:UserAgent": "*AWS_Lambda_python*"
}
}
},
{
"Sid": "Stmt34",
"Effect": "Allow",
"Principal": {
"AWS": "arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"
},
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::demo-reko-gaurav/*",
"Condition": {
"StringLike": {
"aws:UserAgent": "*AWS_Lambda_python*"
}
}
}
]
}我想将以下几行添加到上述策略的statement部分：
{
"Sid": "AllowSSLRequestsOnly",
"Effect": "Deny",
"Principal": "*",
"Action": "s3:*",
"Resource": [
"arn:aws:s3:::tests3grvtest",
"arn:aws:s3:::tests3grvtest/*"
],
"Condition": {
"Bool": {
"aws:SecureTransport": "false"
}
}
}在Python中，最简单、最有效的方法是什么？
回答 3
Stack Overflow用户
发布于 2020-08-21 23:30:27
您可以使用python标准库中的json。
import json
policy = """{"Version":"2012-10-17","Statement":[{"Sid":"Stmt1565731301209","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"},"Action":"s3:ListBucket","Resource":"arn:aws:s3:::demo-reko-gaurav","Condition":{"StringLike":{"aws:UserAgent":"AWS_Lambda_python"}}},{"Sid":"Stmt34","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"},"Action":"s3:PutObject","Resource":"arn:aws:s3:::demo-reko-gaurav/*","Condition":{"StringLike":{"aws:UserAgent":"AWS_Lambda_python"}}}]}"""
add_policy ="""{"Sid": "AllowSSLRequestsOnly","Effect": "Deny","Principal": "","Action": "s3:","Resource": ["arn:aws:s3:::tests3grvtest","arn:aws:s3:::tests3grvtest/*"],"Condition": {"Bool": {"aws:SecureTransport": "false"}}}"""
pol_json = json.loads(policy)
add_pol_json = json.loads(add_policy)
pol_json['Statement'].append(add_pol_json)
pol_json
new_policy_string = json.dumps(pol_json)
new_policy_string返回：
{'Version': '2012-10-17',
'Statement': [{'Sid': 'Stmt1565731301209',
'Effect': 'Allow',
'Principal': {'AWS': 'arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker'},
'Action': 's3:ListBucket',
'Resource': 'arn:aws:s3:::demo-reko-gaurav',
'Condition': {'StringLike': {'aws:UserAgent': 'AWS_Lambda_python'}}},
{'Sid': 'Stmt34',
'Effect': 'Allow',
'Principal': {'AWS': 'arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker'},
'Action': 's3:PutObject',
'Resource': 'arn:aws:s3:::demo-reko-gaurav/*',
'Condition': {'StringLike': {'aws:UserAgent': 'AWS_Lambda_python'}}},
{'Sid': 'AllowSSLRequestsOnly',
'Effect': 'Deny',
'Principal': '',
'Action': 's3:',
'Resource': ['arn:aws:s3:::tests3grvtest', 'arn:aws:s3:::tests3grvtest/*'],
'Condition': {'Bool': {'aws:SecureTransport': 'false'}}}]}Stack Overflow用户
发布于 2020-08-21 23:29:10
使用python json可能是最简单的。您只需要加载json，因为字典会根据您认为合适的方式更新字典。
policy = json.loads('{"Version":"2012-10-17","Statement":[{"Sid":"Stmt1565731301209","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"},"Action":"s3:ListBucket","Resource":"arn:aws:s3:::demo-reko-gaurav","Condition":{"StringLike":{"aws:UserAgent":"AWS_Lambda_python"}}},{"Sid":"Stmt34","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"},"Action":"s3:PutObject","Resource":"arn:aws:s3:::demo-reko-gaurav/*","Condition":{"StringLike":{"aws:UserAgent":"AWS_Lambda_python"}}}]}')
new_statement = json.loads('{"Sid": "AllowSSLRequestsOnly","Effect": "Deny","Principal": "","Action": "s3:","Resource": ["arn:aws:s3:::tests3grvtest","arn:aws:s3:::tests3grvtest/*"],"Condition": {"Bool": {"aws:SecureTransport": "false"}}}')
policy["Statement"].append(new_statement)
policy_str = json.dumps(policy)Stack Overflow用户
发布于 2020-08-21 23:32:35
这很简单：
policy = {"Version":"2012-10-17","Statement":[{"Sid":"Stmt1565731301209","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"},"Action":"s3:ListBucket","Resource":"arn:aws:s3:::demo-reko-gaurav","Condition":{"StringLike":{"aws:UserAgent":"AWS_Lambda_python"}}},{"Sid":"Stmt34","Effect":"Allow","Principal":{"AWS":"arn:aws:iam::1234567890:role/RoleforLambdafunctiondatabunker"},"Action":"s3:PutObject","Resource":"arn:aws:s3:::demo-reko-gaurav/*","Condition":{"StringLike":{"aws:UserAgent":"AWS_Lambda_python"}}}]}
new_statement = {"Sid": "AllowSSLRequestsOnly","Effect": "Deny","Principal": "","Action": "s3:","Resource": ["arn:aws:s3:::tests3grvtest","arn:aws:s3:::tests3grvtest/*"],"Condition": {"Bool": {"aws:SecureTransport": "false"}}}
policy['Statement'].append(new_statement)页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/63531128
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