How to use AWS IoT message payload in Rule Engine expression to generate PartitionKey
0
Problem context:
AWS IoT connected to Kinesis Data Stream (KDS) usin AWS Rule Engine, there is an option for PartitionKey in Rule Engine rule definition. PartionKey could be popluated using an expression such as "${topic()}". Example message payload is
{
Id:"123"
GS:"123"
}
Question:
How an expression could be defined which uses payload, something like "part${payload().GS}"
amazon-web-services expression partitioning amazon-kinesis aws-iot
asked Nov 22 '18 at 0:58
mehranmehran
417619
add a comment |
0
Problem context:
AWS IoT connected to Kinesis Data Stream (KDS) usin AWS Rule Engine, there is an option for PartitionKey in Rule Engine rule definition. PartionKey could be popluated using an expression such as "${topic()}". Example message payload is
{
Id:"123"
GS:"123"
}
Question:
How an expression could be defined which uses payload, something like "part${payload().GS}"
amazon-web-services expression partitioning amazon-kinesis aws-iot
asked Nov 22 '18 at 0:58
mehranmehran
417619
add a comment |
0
0
0
Problem context:
AWS IoT connected to Kinesis Data Stream (KDS) usin AWS Rule Engine, there is an option for PartitionKey in Rule Engine rule definition. PartionKey could be popluated using an expression such as "${topic()}". Example message payload is
{
Id:"123"
GS:"123"
}
Question:
How an expression could be defined which uses payload, something like "part${payload().GS}"
amazon-web-services expression partitioning amazon-kinesis aws-iot
asked Nov 22 '18 at 0:58
mehranmehran
417619
Problem context:
AWS IoT connected to Kinesis Data Stream (KDS) usin AWS Rule Engine, there is an option for PartitionKey in Rule Engine rule definition. PartionKey could be popluated using an expression such as "${topic()}". Example message payload is
{
Id:"123"
GS:"123"
}
Question:
How an expression could be defined which uses payload, something like "part${payload().GS}"
amazon-web-services expression partitioning amazon-kinesis aws-iot
amazon-web-services expression partitioning amazon-kinesis aws-iot
asked Nov 22 '18 at 0:58
mehranmehran
417619
asked Nov 22 '18 at 0:58
mehranmehran
417619
asked Nov 22 '18 at 0:58
mehranmehran
417619
asked Nov 22 '18 at 0:58
mehranmehran
417619
asked Nov 22 '18 at 0:58
mehranmehran
417619
417619
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
1
You can do this using a substitution template.
e.g.:
{
"rule": {
"sql": "SELECT * FROM 'some/topic'",
"ruleDisabled": false,
"actions": [{
"kinesis": {
"roleArn": "arn:aws:iam::123456789012:role/aws_iot_kinesis",
"streamName": "my_kinesis_stream",
"partitionKey": "${GS}"
}
}],
}
}
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
You can do this using a substitution template.
e.g.:
{
"rule": {
"sql": "SELECT * FROM 'some/topic'",
"ruleDisabled": false,
"actions": [{
"kinesis": {
"roleArn": "arn:aws:iam::123456789012:role/aws_iot_kinesis",
"streamName": "my_kinesis_stream",
"partitionKey": "${GS}"
}
}],
}
}
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
add a comment |
1
You can do this using a substitution template.
e.g.:
{
"rule": {
"sql": "SELECT * FROM 'some/topic'",
"ruleDisabled": false,
"actions": [{
"kinesis": {
"roleArn": "arn:aws:iam::123456789012:role/aws_iot_kinesis",
"streamName": "my_kinesis_stream",
"partitionKey": "${GS}"
}
}],
}
}
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
add a comment |
1
1
1
You can do this using a substitution template.
e.g.:
{
"rule": {
"sql": "SELECT * FROM 'some/topic'",
"ruleDisabled": false,
"actions": [{
"kinesis": {
"roleArn": "arn:aws:iam::123456789012:role/aws_iot_kinesis",
"streamName": "my_kinesis_stream",
"partitionKey": "${GS}"
}
}],
}
}
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
You can do this using a substitution template.
e.g.:
{
"rule": {
"sql": "SELECT * FROM 'some/topic'",
"ruleDisabled": false,
"actions": [{
"kinesis": {
"roleArn": "arn:aws:iam::123456789012:role/aws_iot_kinesis",
"streamName": "my_kinesis_stream",
"partitionKey": "${GS}"
}
}],
}
}
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
answered Nov 22 '18 at 12:11
thomasmichaelwallacethomasmichaelwallace
2,6251917
2,6251917
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
add a comment |
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Can I combine it? something like "partitionKey": "Part(${GS}/2)" to generate something like "Part1"?
– mehran
Nov 22 '18 at 22:43
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
Looking at the operators (docs.aws.amazon.com/iot/latest/developerguide/…) I that would be ""Part"+(${GS}/2)". Remember all that partition keys do is guaranteed distribution and order in shards.
– thomasmichaelwallace
Nov 22 '18 at 22:50
add a comment |
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