DynamoDB schema updates with AWS Amplify











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According to the AWS Amplify documentation:




  • "objects annotated with @model are stored in Amazon DynamoDB";

  • "a single @model directive configures ... an Amazon DynamoDB table"; and

  • one can "push updated changes with amplify push".


It seems clear that amplify push creates a DynamoDB table for each @model.



My questions relate to schema updates:




  • I imagine that adding/removing a model or adding/removing a field in a model works by updating the schema document and then running amplify push. Is that right?


  • How does one rename a model or a field? How would amplify push know to rename vs. drop the old and add the new?


  • How does one implement a migration that requires some business logic, e.g., to update the contents of existing rows? Doing this without Amplify has already been addressed but it is unclear whether that would conflict with something that amplify push might try to do.







amazon-web-services amazon-dynamodb graphql database-migration aws-amplify







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    up vote
    1
    down vote

    favorite












    According to the AWS Amplify documentation:




    • "objects annotated with @model are stored in Amazon DynamoDB";

    • "a single @model directive configures ... an Amazon DynamoDB table"; and

    • one can "push updated changes with amplify push".


    It seems clear that amplify push creates a DynamoDB table for each @model.



    My questions relate to schema updates:




    • I imagine that adding/removing a model or adding/removing a field in a model works by updating the schema document and then running amplify push. Is that right?


    • How does one rename a model or a field? How would amplify push know to rename vs. drop the old and add the new?


    • How does one implement a migration that requires some business logic, e.g., to update the contents of existing rows? Doing this without Amplify has already been addressed but it is unclear whether that would conflict with something that amplify push might try to do.







    amazon-web-services amazon-dynamodb graphql database-migration aws-amplify







    share|improve this question
























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      According to the AWS Amplify documentation:




      • "objects annotated with @model are stored in Amazon DynamoDB";

      • "a single @model directive configures ... an Amazon DynamoDB table"; and

      • one can "push updated changes with amplify push".


      It seems clear that amplify push creates a DynamoDB table for each @model.



      My questions relate to schema updates:




      • I imagine that adding/removing a model or adding/removing a field in a model works by updating the schema document and then running amplify push. Is that right?


      • How does one rename a model or a field? How would amplify push know to rename vs. drop the old and add the new?


      • How does one implement a migration that requires some business logic, e.g., to update the contents of existing rows? Doing this without Amplify has already been addressed but it is unclear whether that would conflict with something that amplify push might try to do.







      amazon-web-services amazon-dynamodb graphql database-migration aws-amplify







      share|improve this question













      According to the AWS Amplify documentation:




      • "objects annotated with @model are stored in Amazon DynamoDB";

      • "a single @model directive configures ... an Amazon DynamoDB table"; and

      • one can "push updated changes with amplify push".


      It seems clear that amplify push creates a DynamoDB table for each @model.



      My questions relate to schema updates:




      • I imagine that adding/removing a model or adding/removing a field in a model works by updating the schema document and then running amplify push. Is that right?


      • How does one rename a model or a field? How would amplify push know to rename vs. drop the old and add the new?


      • How does one implement a migration that requires some business logic, e.g., to update the contents of existing rows? Doing this without Amplify has already been addressed but it is unclear whether that would conflict with something that amplify push might try to do.







      amazon-web-services amazon-dynamodb graphql database-migration aws-amplify




      amazon-web-services amazon-dynamodb graphql database-migration aws-amplify






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      kkurian

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