eqx initAws: Remove default streaming mode

Author: bartelink

README.md

@@ -501,7 +501,7 @@ DynamoDB is supported in the samples and the `eqx` tool equivalent to the Cosmos
 - being able to supply `dynamo` source to `eqx run` wherever `cosmos` works, e.g. `eqx run -t cart -f 50 -d 5 -CU dynamo -s http://localhost:8000 -t TableName`
 - being able to supply `dynamo` flag to `eqx dump`, e.g. `eqx dump -CU "Favorites-ab25cc9f24464d39939000aeb37ea11a" dynamo`
 - being able to supply `dynamo` flag to Web sample, e.g. `dotnet run --project samples/Web/ -- dynamo -s http://localhost:8000`
-- being able to supply `dynamo` flag to `eqx initaws` command e.g. `eqx initaws -r 10 -w 10 dynamo -t TableName`
+- being able to supply `dynamo` flag to `eqx initaws` command e.g. `eqx initaws -r 10 -w 10 -s new dynamo -t TableName`
 
 1. The tooling and samples in this repo default to using the following environment variables (see [AWS CLI UserGuide](https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-envvars.html)
    for more detailed guidance as to specific configuration)
@@ -523,7 +523,7 @@ DynamoDB is supported in the samples and the `eqx` tool equivalent to the Cosmos
     docker compose up dynamodb-local dynamodb-admin -d
 
     # Establish the table in us-east-1 - keys come from $EQUINOX_DYNAMO_ACCESS_KEY_ID and $EQUINOX_DYNAMO_SECRET_ACCESS_KEY
-    dotnet run --project tools/Equinox.Tool -- initaws -r 10 -w 10 dynamo -t TableName -su https://dynamodb.us-east-1.amazonaws.com
+    dotnet run --project tools/Equinox.Tool -- initaws -r 10 -w 10 -s new dynamo -t TableName -su https://dynamodb.us-east-1.amazonaws.com
 
     # Check the status and get the streams ARN - keys come from AWS SDK config for us-east-1 region
     dotnet run --project tools/Equinox.Tool -- stats dynamo -t TableName -sr us-east-1

tools/Equinox.Tool/Program.fs

@@ -68,7 +68,7 @@ and CosmosInitArguments(p : ParseResults<InitParameters>) =
     member val SkipStoredProc =             p.Contains InitParameters.SkipStoredProc
 and [<NoComparison; NoEquality>] TableParameters =
     | [<AltCommandLine "-D"; Unique>]       OnDemand
-    | [<AltCommandLine "-s"; Unique>]       Streaming of Equinox.DynamoStore.Core.Initialization.StreamingMode
+    | [<AltCommandLine "-s"; Mandatory>]    Streaming of Equinox.DynamoStore.Core.Initialization.StreamingMode
     | [<AltCommandLine "-r"; Unique>]       ReadCu of int64
     | [<AltCommandLine "-w"; Unique>]       WriteCu of int64
     | [<CliPrefix(CliPrefix.None); Last>]   Dynamo of ParseResults<Storage.Dynamo.Parameters>
@@ -77,11 +77,11 @@ and [<NoComparison; NoEquality>] TableParameters =
             | OnDemand ->                   "Specify On-Demand Capacity Mode. (Default: Provisioned mode)"
             | ReadCu _ ->                   "Specify Read Capacity Units to provision for the Table. (Not applicable in On-Demand mode)"
             | WriteCu _ ->                  "Specify Write Capacity Units to provision for the Table. (Not applicable in On-Demand mode)"
-            | Streaming _ ->                "Specify Streaming Mode. Default: `NEW_IMAGE`"
+            | Streaming _ ->                "Specify Streaming Mode: New=NEW_IMAGE, NewAndOld=NEW_AND_OLD_IMAGES, Off=Disabled."
             | Dynamo _ ->                   "DynamoDB Connection parameters."
 and DynamoInitArguments(p : ParseResults<TableParameters>) =
     let onDemand =                          p.Contains OnDemand
-    member val StreamingMode =              p.GetResult(Streaming, Equinox.DynamoStore.Core.Initialization.StreamingMode.New)
+    member val StreamingMode =              p.GetResult Streaming
     member val Throughput =                 if not onDemand then Throughput.Provisioned (ProvisionedThroughput(p.GetResult ReadCu, p.GetResult WriteCu))
                                             elif onDemand && (p.Contains ReadCu || p.Contains WriteCu) then Storage.missingArg "CUs are not applicable in On-Demand mode"
                                             else Throughput.OnDemand