How to Query a Array of objects in DynamoDB using FilterExpression in scan operation












5















enter image description here



How to Query array of objects(workingDays) key containing only "Tue" in dynamoDb with Scan Operation,I have queried using filter Expression but i am getting no results.



var queryData = {
TableName: tableName,
FilterExpression: "contains (workingDays, :dayVal)",
ExpressionAttributeValues: {
":dayVal": {
S:"Tue"
}
}
};

console.log("getParams ==>", queryData)
dynamodb.scan(queryData, function (err, details) {
if (err) {
console.log(err, err.stack); // an error occurred
callback(err, null)
}
else{
callback(null, details)

}
})









share|improve this question



























    5















    enter image description here



    How to Query array of objects(workingDays) key containing only "Tue" in dynamoDb with Scan Operation,I have queried using filter Expression but i am getting no results.



    var queryData = {
    TableName: tableName,
    FilterExpression: "contains (workingDays, :dayVal)",
    ExpressionAttributeValues: {
    ":dayVal": {
    S:"Tue"
    }
    }
    };

    console.log("getParams ==>", queryData)
    dynamodb.scan(queryData, function (err, details) {
    if (err) {
    console.log(err, err.stack); // an error occurred
    callback(err, null)
    }
    else{
    callback(null, details)

    }
    })









    share|improve this question

























      5












      5








      5


      2






      enter image description here



      How to Query array of objects(workingDays) key containing only "Tue" in dynamoDb with Scan Operation,I have queried using filter Expression but i am getting no results.



      var queryData = {
      TableName: tableName,
      FilterExpression: "contains (workingDays, :dayVal)",
      ExpressionAttributeValues: {
      ":dayVal": {
      S:"Tue"
      }
      }
      };

      console.log("getParams ==>", queryData)
      dynamodb.scan(queryData, function (err, details) {
      if (err) {
      console.log(err, err.stack); // an error occurred
      callback(err, null)
      }
      else{
      callback(null, details)

      }
      })









      share|improve this question














      enter image description here



      How to Query array of objects(workingDays) key containing only "Tue" in dynamoDb with Scan Operation,I have queried using filter Expression but i am getting no results.



      var queryData = {
      TableName: tableName,
      FilterExpression: "contains (workingDays, :dayVal)",
      ExpressionAttributeValues: {
      ":dayVal": {
      S:"Tue"
      }
      }
      };

      console.log("getParams ==>", queryData)
      dynamodb.scan(queryData, function (err, details) {
      if (err) {
      console.log(err, err.stack); // an error occurred
      callback(err, null)
      }
      else{
      callback(null, details)

      }
      })






      aws-lambda amazon-dynamodb dynamodb-queries






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 2 at 7:01









      RAHUL SRVRAHUL SRV

      162220




      162220
























          1 Answer
          1






          active

          oldest

          votes


















          0














          ExpressionAttributeValues in your query contains String ["S"] as 'key' for value 'Tue', where as in your table, 'workingDays' is a list of map object containing value for day keys.



          Try below code:



          var queryData = {
          TableName: tableName,
          ExpressionAttributeNames: {
          "#workingDays": "workingDays",
          },
          FilterExpression: "contains (#workingDays, :dayVal)",
          ExpressionAttributeValues: {
          ":dayVal": {
          "day":"Tue"
          }
          }
          };

          console.log("getParams ==>", queryData)

          docClient.scan(queryData, function (err, details) {
          if (err) {
          console.log(err, err.stack); // an error occurred
          // callback(err, null)
          }
          else{
          // callback(null, details)
          console.log(details);
          }
          });





          share|improve this answer
























          • Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

            – RAHUL SRV
            Jan 4 at 4:18













          • I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

            – Amrit Pal Singh
            Jan 4 at 6:28











          Your Answer






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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          0














          ExpressionAttributeValues in your query contains String ["S"] as 'key' for value 'Tue', where as in your table, 'workingDays' is a list of map object containing value for day keys.



          Try below code:



          var queryData = {
          TableName: tableName,
          ExpressionAttributeNames: {
          "#workingDays": "workingDays",
          },
          FilterExpression: "contains (#workingDays, :dayVal)",
          ExpressionAttributeValues: {
          ":dayVal": {
          "day":"Tue"
          }
          }
          };

          console.log("getParams ==>", queryData)

          docClient.scan(queryData, function (err, details) {
          if (err) {
          console.log(err, err.stack); // an error occurred
          // callback(err, null)
          }
          else{
          // callback(null, details)
          console.log(details);
          }
          });





          share|improve this answer
























          • Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

            – RAHUL SRV
            Jan 4 at 4:18













          • I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

            – Amrit Pal Singh
            Jan 4 at 6:28
















          0














          ExpressionAttributeValues in your query contains String ["S"] as 'key' for value 'Tue', where as in your table, 'workingDays' is a list of map object containing value for day keys.



          Try below code:



          var queryData = {
          TableName: tableName,
          ExpressionAttributeNames: {
          "#workingDays": "workingDays",
          },
          FilterExpression: "contains (#workingDays, :dayVal)",
          ExpressionAttributeValues: {
          ":dayVal": {
          "day":"Tue"
          }
          }
          };

          console.log("getParams ==>", queryData)

          docClient.scan(queryData, function (err, details) {
          if (err) {
          console.log(err, err.stack); // an error occurred
          // callback(err, null)
          }
          else{
          // callback(null, details)
          console.log(details);
          }
          });





          share|improve this answer
























          • Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

            – RAHUL SRV
            Jan 4 at 4:18













          • I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

            – Amrit Pal Singh
            Jan 4 at 6:28














          0












          0








          0







          ExpressionAttributeValues in your query contains String ["S"] as 'key' for value 'Tue', where as in your table, 'workingDays' is a list of map object containing value for day keys.



          Try below code:



          var queryData = {
          TableName: tableName,
          ExpressionAttributeNames: {
          "#workingDays": "workingDays",
          },
          FilterExpression: "contains (#workingDays, :dayVal)",
          ExpressionAttributeValues: {
          ":dayVal": {
          "day":"Tue"
          }
          }
          };

          console.log("getParams ==>", queryData)

          docClient.scan(queryData, function (err, details) {
          if (err) {
          console.log(err, err.stack); // an error occurred
          // callback(err, null)
          }
          else{
          // callback(null, details)
          console.log(details);
          }
          });





          share|improve this answer













          ExpressionAttributeValues in your query contains String ["S"] as 'key' for value 'Tue', where as in your table, 'workingDays' is a list of map object containing value for day keys.



          Try below code:



          var queryData = {
          TableName: tableName,
          ExpressionAttributeNames: {
          "#workingDays": "workingDays",
          },
          FilterExpression: "contains (#workingDays, :dayVal)",
          ExpressionAttributeValues: {
          ":dayVal": {
          "day":"Tue"
          }
          }
          };

          console.log("getParams ==>", queryData)

          docClient.scan(queryData, function (err, details) {
          if (err) {
          console.log(err, err.stack); // an error occurred
          // callback(err, null)
          }
          else{
          // callback(null, details)
          console.log(details);
          }
          });






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Jan 3 at 9:55









          Amrit Pal SinghAmrit Pal Singh

          5,99663149




          5,99663149













          • Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

            – RAHUL SRV
            Jan 4 at 4:18













          • I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

            – Amrit Pal Singh
            Jan 4 at 6:28



















          • Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

            – RAHUL SRV
            Jan 4 at 4:18













          • I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

            – Amrit Pal Singh
            Jan 4 at 6:28

















          Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

          – RAHUL SRV
          Jan 4 at 4:18







          Thanks for the response Amrit pal,I tried your solution but it is throwing error "Unexpected key 'day' found in params.ExpressionAttributeValues[':dayVal']"

          – RAHUL SRV
          Jan 4 at 4:18















          I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

          – Amrit Pal Singh
          Jan 4 at 6:28





          I've executed above code using your table data model (with column workingDays as list of object) and it's working for me, can you paste here the exception trace you are getting

          – Amrit Pal Singh
          Jan 4 at 6:28




















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