Created
July 22, 2019 09:36
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Query items with PK and response in an order based on range key
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{ | |
"version" : "2017-02-28", | |
"operation" : "Query", | |
"query" : { | |
"expression" : "author = :author", | |
"expressionValues" : { | |
":author" : $util.dynamodb.toDynamoDBJson($ctx.args.author) | |
} | |
}, | |
## false -> DESC ORDER | |
"scanIndexForward" : false | |
} |
- Defining a key is a way to enable your data access pattern.
- Using custom resolver is a way to control over Amplify. We know that Amplify has GraphQL Transform which will automatically create DynamoDB table and some default CRUD queries and mutations. But sometimes those autogenerated queries and mutations doesn't match our need or requirement. This is when custom field and resolver come in.
@koingdev Thank you! didn't know u replied here till today haha.
So as long as I have the scalable database structure, I can user resolvers for custom queries and mutations.
I ended up modifying the schema file little bit the way I think it makes sense here(https://gist.github.com/ohsik/1506c0530a6744cff158f8af408be731) and moving on to building the app again.
Thank you for the help again!
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@koingdev
One more thing I'm curious about for querying. I have a page that shows all
PUBLIC
journals from all the users on the site by date. I want to query latest 30PUBLIC
journals from everyone on the site and next 30 more by chronological order.I'm not sure what is the best way to do this.
Journal @model @key(fields: ["privacy", "createdAt"])
?