39 lines
670 B
Markdown
39 lines
670 B
Markdown
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# emqx-rule-engine
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IoT Rule Engine for EMQ X Broker.
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## Concept
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```
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iot rule "Rule Name"
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when
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match TopicFilters and Conditions
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select
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para1 = val1
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para2 = val2
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then
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take action(#{para2 => val1, #para2 => val2})
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```
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## Architecture
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```
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|-----------------|
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Pub ---->| Message Routing |----> Sub
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|-----------------|
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| /|\
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\|/ |
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|-----------------|
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| Rule Engine |
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|-----------------|
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Backends Services Bridges
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```
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## SQL for Rule query statement
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```
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select id, time, temperature as t from "topic/a" where t > 50;
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```
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