AppSync Resolver Query Table/Secondary Index Without Using Primary Key
From the official AWS documentation it seems that to query for items in dynamodb one needs to provide an equality key expression for the primary key. However, the AppSync doc did not explicitly say this. I am wondering is it possible in the resolver, to query the dynamodb without providing an equality key expression for the primary key of either the index or the table? For example, can I do the following:
primaryKey != anInput
or simply omit the equality expression altogether and use expressions on other attributes instead?
amazon-web-services amazon-dynamodb aws-appsync
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
add a comment |
From the official AWS documentation it seems that to query for items in dynamodb one needs to provide an equality key expression for the primary key. However, the AppSync doc did not explicitly say this. I am wondering is it possible in the resolver, to query the dynamodb without providing an equality key expression for the primary key of either the index or the table? For example, can I do the following:
primaryKey != anInput
or simply omit the equality expression altogether and use expressions on other attributes instead?
amazon-web-services amazon-dynamodb aws-appsync
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
add a comment |
From the official AWS documentation it seems that to query for items in dynamodb one needs to provide an equality key expression for the primary key. However, the AppSync doc did not explicitly say this. I am wondering is it possible in the resolver, to query the dynamodb without providing an equality key expression for the primary key of either the index or the table? For example, can I do the following:
primaryKey != anInput
or simply omit the equality expression altogether and use expressions on other attributes instead?
amazon-web-services amazon-dynamodb aws-appsync
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
From the official AWS documentation it seems that to query for items in dynamodb one needs to provide an equality key expression for the primary key. However, the AppSync doc did not explicitly say this. I am wondering is it possible in the resolver, to query the dynamodb without providing an equality key expression for the primary key of either the index or the table? For example, can I do the following:
primaryKey != anInput
or simply omit the equality expression altogether and use expressions on other attributes instead?
amazon-web-services amazon-dynamodb aws-appsync
amazon-web-services amazon-dynamodb aws-appsync
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
asked Nov 14 '18 at 1:41
Sarah GuoSarah Guo
668
668
add a comment |
add a comment |
1 Answer
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The AppSync doc says:
"The query expression. This field must be specified." In the case of DDB query the DDB doc says: The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
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1 Answer
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1 Answer
1
active
oldest
votes
active
oldest
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active
oldest
votes
The AppSync doc says:
"The query expression. This field must be specified." In the case of DDB query the DDB doc says: The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
add a comment |
The AppSync doc says:
"The query expression. This field must be specified." In the case of DDB query the DDB doc says: The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
add a comment |
The AppSync doc says:
"The query expression. This field must be specified." In the case of DDB query the DDB doc says: The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
The AppSync doc says:
"The query expression. This field must be specified." In the case of DDB query the DDB doc says: The Query operation finds items based on primary key values. You can query any table or secondary index that has a composite primary key (a partition key and a sort key).
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
answered Nov 14 '18 at 5:34
Vasileios LekakisVasileios Lekakis
4,18121015
4,18121015
add a comment |
add a comment |
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