README.md

ra-ddb-filter

DynamoDB filtering for react-admin getList requests

Install:

  npm i git+https://github.com/snegostup/ra-ddb-filter

Usage:

  const { makeFilterVals } = require('ra-ddb-filter')
  ...
  const filterVals = makeFilterVals(filter) // filter is an object that react-admin dataProvider sends to an endpoint
  
  // filter: 
  //  {"ids":[["00af0efb"],["1fa513ca"]]}}
  //
  // filterVals:
  //  {
  //    expression: " AND (#id = :id0 OR #id = :id1)",
  //    attrNames: { "#id": "id" },
  //    attrVals: { ":id0": "00af0efb", ":id1": "1fa513ca" }
  //  }

  const params = {
    TableName: tableName,
    FilterExpression: `... ${filterVals.expression}`,
    ExpressionAttributeNames: { ..., ...filterVals.attrNames },
    ExpressionAttributeValues: { ..., ...filterVals.attrVals },
  }

  const { Items } = await this.docClient.scan(params).promise()