DynamoDB GetItem Action

Execute DynamoDB GetItem query completely serverless via Thingsup IoT Platform. Create custom query from MQTT Rules Engine or HTTP APIs.

It provides a way to get Item from DynamoDB. Before adding DynamoDB GetItem Action, user has to define a AWS Connection. User need to provide following parameters to add DynamoDB GetItem Action.

TableName

User's DynamoDB Tablename

Function

  • JavaScript code to get "DynamoDB Item".

  • "payload" object and "params" object is available in this code. params object should hold key-value data pairs as mentioned in AWS Doc. "payload" object is supplied from Action Trigger like Rules, Action Command etc.

  • Any params passed through Function will override parameters passed through form.

Connection ID

Connection ID of AWS Connection.

Key

User can provide a primary key here. Check AWS Doc for more information.

ProjectionExpression

User can provide a ProjectionExpression here. Check AWS Doc for more information.

ExpressionAttributeNames

User can provide a ExpressionAttributeValues here. Check AWS Doc for more information.

//"id" and "name" are the column names inside DynamoDB table.
//It contains a entry having id=2 and name="abc"
//Following is the field you need mention in form to get the entries from table id having value 2.
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{"id":"2"} //key
Add DynamoDB GetItem Action

Please note the following points:

  • "payload" object is supplied from Action Trigger like Rules, Action Command etc.

  • Data Response of GetItem will be available as Action Response.