fix: gen 1 update python to 3.12 for searchable lambda (#3373)

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##### CDK / CloudFormation Parameters Changed

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#### Issue #, if available

aws-amplify/amplify-cli#14249

#### Description of how you validated changes

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- [ ] PR description included
- [ ] `yarn test` passes
- [ ] E2E test run linked
- [ ] Tests are [changed or
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By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license.

Author: svidgen

packages/amplify-graphql-searchable-transformer/package.json

@@ -21,9 +21,9 @@
     "access": "public"
   },
   "scripts": {
-    "build": "tsc && cd streaming-lambda && bestzip --force node ../lib/streaming-lambda.zip python_streaming_function.py",
+    "build": "tsc && cd streaming-lambda && rm -rf dist && mkdir -p dist && cp python_streaming_function.py dist/ && pip3 install -r requirements.txt -t dist/ --upgrade && cd dist && bestzip --force node ../../lib/streaming-lambda.zip . && cd .. && rm -rf dist",
     "watch": "tsc -w",
-    "clean": "rimraf ./lib",
+    "clean": "rimraf ./lib ./streaming-lambda/dist",
     "test": "jest",
     "extract-api": "ts-node ../../scripts/extract-api.ts"
   },

packages/amplify-graphql-searchable-transformer/streaming-lambda/.gitignore

@@ -0,0 +1,3 @@
+# Build output
+dist/
+

packages/amplify-graphql-searchable-transformer/streaming-lambda/requirements.txt

@@ -0,0 +1,2 @@
+boto3>=1.28.0
+botocore>=1.31.0

packages/graphql-elasticsearch-transformer/package.json

@@ -17,9 +17,9 @@
     "aws"
   ],
   "scripts": {
-    "build": "tsc && cd streaming-lambda && bestzip --force node ../lib/streaming-lambda.zip python_streaming_function.py",
+    "build": "tsc && cd streaming-lambda && rm -rf dist && mkdir -p dist && cp python_streaming_function.py dist/ && pip3 install -r requirements.txt -t dist/ --upgrade && cd dist && bestzip --force node ../../lib/streaming-lambda.zip . && cd .. && rm -rf dist",
     "watch": "tsc -w",
-    "clean": "rimraf ./lib",
+    "clean": "rimraf ./lib ./streaming-lambda/dist",
     "test": "jest",
     "extract-api": "ts-node ../../scripts/extract-api.ts"
   },

packages/graphql-elasticsearch-transformer/src/resources.ts

@@ -47,7 +47,7 @@ export class ResourceFactory {
         Description:
           'The lambda runtime \
                 (https://docs.aws.amazon.com/lambda/latest/dg/API_CreateFunction.html#SSS-CreateFunction-request-Runtime)',
-        Default: 'python3.9',
+        Default: 'python3.12',
       }),
       [ResourceConstants.PARAMETERS.ElasticsearchStreamingFunctionName]: new StringParameter({
         Description: 'The name of the streaming lambda function.',

packages/graphql-elasticsearch-transformer/streaming-lambda/.gitignore

@@ -0,0 +1,2 @@
+# Build output
+dist/

packages/graphql-elasticsearch-transformer/streaming-lambda/python_streaming_function.py

@@ -10,7 +10,7 @@
 from botocore.auth import SigV4Auth
 from botocore.awsrequest import AWSRequest
 from botocore.credentials import get_credentials
-from botocore.endpoint import BotocoreHTTPSession
+from botocore.httpsession import URLLib3Session
 from botocore.session import Session
 from boto3.dynamodb.types import TypeDeserializer
 
@@ -68,7 +68,7 @@ def post_data_to_es(payload, region, creds, host, path, method='POST', proto='ht
     req = AWSRequest(method=method, url=proto + host +
                     quote(path), data=payload, headers={'Host': host, 'Content-Type': 'application/json'})
     SigV4Auth(creds, 'es', region).add_auth(req)
-    http_session = BotocoreHTTPSession()
+    http_session = URLLib3Session()
     res = http_session.send(req.prepare())
     if res.status_code >= 200 and res.status_code <= 299:
         return res._content
@@ -83,7 +83,8 @@ def post_to_es(payload):
 
     # Get aws_region and credentials to post signed URL to ES
     es_region = ES_REGION or os.environ['AWS_REGION']
-    session = Session({'region': es_region})
+    session = Session()
+    session.set_config_variable('region', es_region)
     creds = get_credentials(session)
     es_url = urlparse(ES_ENDPOINT)
     # Extract the domain name in ES_ENDPOINT

packages/graphql-elasticsearch-transformer/streaming-lambda/requirements.txt

@@ -0,0 +1,2 @@
+boto3>=1.28.0
+botocore>=1.31.0