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…on.indentifiers option (#206)

* Update index.d.ts

There is an option to override the default identifiers but it is not available in the typescript config.
Also, the `composite` key in the index configuration is optional when one uses the `template`. 

TLDR: I am migrating an existing OneTable project to electroDb and I have to support things done slightly differently. None-the-less the types provided in this file right now are wrong

* Update index.d.ts

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Co-authored-by: Tyler W. Walch <tywalch@gmail.com>
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ElectroDB

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ElectroDB is a DynamoDB library to ease the use of having multiple entities and complex hierarchical relationships in a single DynamoDB table.

Please submit issues/feedback or reach out on Twitter @tinkertamper.


New: Documentation now found at ElectroDB.dev

ElectroDB's new website for Documentation is now live at www.ElectroDB.dev.


Introducing: The NEW ElectroDB Playground

Try out and share ElectroDB Models, Services, and Single Table Design at electrodb.fun


Features


Turn this

tasks
  .patch({ 
    team: "core",
    task: "45-662", 
    project: "backend"
  })
  .set({ status: "open" })
  .add({ points: 5 })
  .append({ 
    comments: [{
      user: "janet",
      body: "This seems half-baked."
    }] 
  })
  .where(( {status}, {eq} ) => eq(status, "in-progress"))
  .go();

Into This

{
    "UpdateExpression": "SET #status = :status_u0, #points = #points + :points_u0, #comments = list_append(#comments, :comments_u0), #updatedAt = :updatedAt_u0, #gsi1sk = :gsi1sk_u0",
    "ExpressionAttributeNames": {
        "#status": "status",
        "#points": "points",
        "#comments": "comments",
        "#updatedAt": "updatedAt",
        "#gsi1sk": "gsi1sk"
    },
    "ExpressionAttributeValues": {
        ":status0": "in-progress",
        ":status_u0": "open",
        ":points_u0": 5,
        ":comments_u0": [
            {
                "user": "janet",
                "body": "This seems half-baked."
            }
        ],
        ":updatedAt_u0": 1630977029015,
        ":gsi1sk_u0": "$assignments#tasks_1#status_open"
    },
    "TableName": "your_table_name",
    "Key": {
        "pk": "$taskapp#team_core",
        "sk": "$tasks_1#project_backend#task_45-662"
    },
    "ConditionExpression": "attribute_exists(pk) AND attribute_exists(sk) AND #status = :status0"
}

Try it out!

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A DynamoDB library to ease the use of modeling complex hierarchical relationships and implementing a Single Table Design while keeping your query code readable.

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