add changeset

Author: EmrysMyrddin

.changeset/little-ties-jog.md

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+---
+'@graphql-hive/plugin-opentelemetry': minor
+'@graphql-hive/gateway-runtime': minor
+---
+
+Expose GraphQLError as OpenTelemetry Events.
+
+Errors contains in the result of a graphql operation are now reported as standalone OpenTelemetry
+Events (name `graphql.error`) instead of OpenTelemetry Exceptions.
+
+This is aligned with the guidance of the Graphql OpenTelemetry working group.
+
+It allows to add more graphql specific attributes to errors reported in a response:
+
+- `message`: The error message
+- `path`: The path in the operation document from which the error originated
+- `locations`: The list of related locations in the document source
+- `coordinate`: The schema coordinate of the resolver which is the source of the error
+
+This brings the experimental support of the `coordinate` error attribute in the Yoga Runtime. For
+security reason, this attribute is purposefully not serialized, to avoid leaking schema information
+to clients.