com.walmartlabs.lacinia.parser — com.walmartlabs/lacinia 0.28.0

Parsing of client querys using the ANTLR grammar.

operations clj

(operations parsed-query)

Given a previously parsed query, this returns a map of two keys:

:type : The type of request, one of: :query, :mutation, or :subscription.

:operations : The names of the top-level operations, as a set of keywords.

parse-query clj

(parse-query schema query-string)

(parse-query schema query-string operation-name)

Given a compiled schema and a query-string, parses it using the Antlr grammar. Returns an executable form of the query: a map of the form {:fragments ... :selections ...}.

prepare-with-query-variables clj

(prepare-with-query-variables parsed-query variables)

Given a parsed query data structure and a map of variables, update the query, calculating field arguments and applying directives.

summarize-query clj

(summarize-query parsed-query)

Analyzes a parsed query, returning a summary string.

The summary superficially resembles a GraphQL query, but strips out aliases, directives, and field arguments. In addition, fragments (both inline and named) are collapsed into their containing selections.

This summary can act as a 'fingerprint' of a related set of queries and is typically used in query performance analysis.