mirror of
https://github.com/grafana/grafana.git
synced 2025-07-29 23:52:19 +08:00
3fad863fd1
* parse via sse I need to figure out how to handle the pipeline.execute with our own client. I think this is important for MT reasons, just like using our own cache (via legacy) is important. parsing is done though! * WIP nonsense * horrible code but i think it works * Add support for sql expressions config settings * Cleanup: - remove spew from nodes.go - uncomment out plugin context and use in single tenant flow - make code more readable and add comments * Cleanup: - create separate file for mt ds client builder - ensure error handling is the same for both expressions and regular queries - other cleanup * not working but good thoughts * WIP, vector not working for non sse * super hacky but i think vectors work now * delete delete delete * Comments for future ref * break out query handling and start test * add prom debugger * clean up: remove comments and commented out bits * fix query_test * add prom debugger * create table-driven tests with testsdata files * Fix test * Add test * go mod?? * idk * Remove comment * go enterprise issue maybe * Fix codeowners * Delete * Remove test data * Clean up * logger * Remove go changes hopefully * idk go man * sad * idk i ran go mod tidy and this is what it wants * Fix readme, with much help from adam * some linting and testing errors * lint * fix lint * fix lint register.go * another lint * address lint in test * fix dead code and linters for query_test * Go mod? * Struggling with go mod * Fix test * Fix another test * Revert headers change * Its difficult to test this in OSS as it depends on functionality defined in enterprise, let's bring these tests back in some form in enterprise * Fix codeowners --------- Co-authored-by: Adam Simpson <adam@adamsimpson.net>
Query service
This query service aims to replace the existing /api/ds/query, while preserving the same parsing and expression handling as /api/ds/query
Current /api/ds/query workflow
sequenceDiagram
autonumber
actor User as User or Process
participant api as /api/ds/query
participant db as Storage<br/>(SQL)
participant ds as Datasource<br/>Plugin
participant expr as Expression<br/>Engine
User->>api: POST Query
loop Each query
api->>api: Parse query
api->>db: Get ds config<br>and secrets
db->>api:
end
alt No expressions
alt Single datasource
api->>ds: QueryData
else Multiple datasources
loop Each datasource (concurrently)
api->>ds: QueryData
end
api->>api: Wait for results
end
else Expressions exist
api->>expr: Calculate expressions graph
loop Each node (eg, refID)
alt Is query
expr->>ds: QueryData
else Is expression
expr->>expr: Process
end
end
end
api->>User: return results
/apis/query.grafana.app (in single tenant grafana)
sequenceDiagram
autonumber
actor User as User or Process
participant api as /apis/query.grafana.app
participant db as Storage<br/>(CloudConfig)
participant ds as Datasource<br/>Plugin
participant expr as Expression<br/>Engine
User->>api: POST Query
loop Each query
api->>api: Parse query
api->>db: Get ds config<br>and secrets
db->>api:
end
alt Expressions exist
api->>expr: Calculate expressions graph
loop Each node (eg, refID)
alt Is query
expr->>ds: QueryData
else Is expression
expr->>expr: Process
end
end
else No expressions
alt Single datasource
api->>ds: QueryData
else Multiple datasources
loop Each datasource (concurrently)
api->>ds: QueryData
end
api->>api: Wait for results
end
end
api->>User: return results