package envoy.extensions.content_parsers.json.v3

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Configuration for the JSON content parser.

• repeated JsonContentParser.RuleConfig rules = 1

  The rules to apply for extracting values from JSON content. Rules are evaluated in order for each content item provided. At least one rule must be specified.

Configuration for a single rule with its processing behavior.

Used in: JsonContentParser

• optional filters.http.json_to_metadata.v3.JsonToMetadata.Rule rule = 1

  The json-to-metadata rule to apply for extracting values from JSON content. See :ref:`json_to_metadata rule <envoy_v3_api_msg_extensions.filters.http.json_to_metadata.v3.JsonToMetadata.Rule>` for available configuration options including selectors, on_present, on_missing, on_error actions.

• uint32 stop_processing_after_matches = 2

  Controls how many times this rule should successfully match before stopping evaluation of this rule for subsequent content items. - If set to 0 (default): This rule is evaluated against all content items provided. Later matches may overwrite earlier values (unless :ref:`preserve_existing_metadata_value <envoy_v3_api_field_extensions.filters.http.json_to_metadata.v3.JsonToMetadata.KeyValuePair.preserve_existing_metadata_value>` is set in the rule), effectively extracting the LAST occurrence. - If set to 1: Stop evaluating this rule after the first successful match. This is useful for extracting values that appear early in the stream to avoid unnecessary processing of subsequent content. - If set to N > 1: Reserved for future use (e.g., aggregating multiple values). Values > 1 are currently rejected to prevent behavioral changes when this feature is implemented. Example use cases: - Extract model name from early content: ``stop_processing_after_matches: 1`` (Stops checking this rule after first match, doesn't process remaining content for this rule) - Extract token usage from final content: ``stop_processing_after_matches: 0`` (Processes all content items, extracts value from the last one that contains it)