{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api-evangelist.com/schemas/highlight-io/highlight-trace-schema.json",
  "title": "Highlight Trace (OTLP)",
  "description": "Schema for an OpenTelemetry trace export request as accepted by the Highlight OTLP HTTP/JSON endpoint at /v1/traces.",
  "type": "object",
  "required": ["resourceSpans"],
  "properties": {
    "resourceSpans": {
      "type": "array",
      "items": { "$ref": "#/definitions/ResourceSpans" }
    }
  },
  "definitions": {
    "ResourceSpans": {
      "type": "object",
      "properties": {
        "resource": { "$ref": "#/definitions/Resource" },
        "scopeSpans": {
          "type": "array",
          "items": { "$ref": "#/definitions/ScopeSpans" }
        },
        "schemaUrl": { "type": "string" }
      }
    },
    "Resource": {
      "type": "object",
      "description": "Resource MUST include the highlight.project_id attribute.",
      "properties": {
        "attributes": {
          "type": "array",
          "items": { "$ref": "#/definitions/KeyValue" }
        }
      }
    },
    "ScopeSpans": {
      "type": "object",
      "properties": {
        "scope": {
          "type": "object",
          "properties": {
            "name": { "type": "string" },
            "version": { "type": "string" }
          }
        },
        "spans": {
          "type": "array",
          "items": { "$ref": "#/definitions/Span" }
        }
      }
    },
    "Span": {
      "type": "object",
      "required": ["traceId", "spanId", "name", "startTimeUnixNano", "endTimeUnixNano"],
      "properties": {
        "traceId": { "type": "string", "description": "16-byte hex trace identifier." },
        "spanId": { "type": "string", "description": "8-byte hex span identifier." },
        "parentSpanId": { "type": "string" },
        "name": { "type": "string" },
        "kind": {
          "type": "string",
          "enum": [
            "SPAN_KIND_UNSPECIFIED",
            "SPAN_KIND_INTERNAL",
            "SPAN_KIND_SERVER",
            "SPAN_KIND_CLIENT",
            "SPAN_KIND_PRODUCER",
            "SPAN_KIND_CONSUMER"
          ]
        },
        "startTimeUnixNano": { "type": "string" },
        "endTimeUnixNano": { "type": "string" },
        "attributes": {
          "type": "array",
          "items": { "$ref": "#/definitions/KeyValue" }
        },
        "status": {
          "type": "object",
          "properties": {
            "code": {
              "type": "string",
              "enum": ["STATUS_CODE_UNSET", "STATUS_CODE_OK", "STATUS_CODE_ERROR"]
            },
            "message": { "type": "string" }
          }
        }
      }
    },
    "KeyValue": {
      "type": "object",
      "required": ["key"],
      "properties": {
        "key": { "type": "string" },
        "value": {
          "type": "object",
          "properties": {
            "stringValue": { "type": "string" },
            "boolValue": { "type": "boolean" },
            "intValue": { "type": "string" },
            "doubleValue": { "type": "number" }
          }
        }
      }
    }
  }
}