dd_trace.proto

syntax = "proto3";

package dd_trace;

// TracePayload can represent either an older payload or a new one
message TracePayload {
	string hostName = 1;
	string env = 2;
	// Older payload fields
	repeated APITrace traces = 3;
	repeated Span transactions = 4;
	// Newer payload fields
	repeated TracerPayload tracerPayloads = 5;
	map<string, string> tags = 6;
	string agentVersion = 7;
	double targetTPS = 8;
	double errorTPS = 9;
}

message APITrace {
	uint64 traceID = 1;
	repeated Span spans = 2;
	int64 startTime = 6;
	int64 endTime = 7;
}

message TracerPayload {
	string containerID = 1;
	string languageName = 2;
	string languageVersion = 3;
	string tracerVersion = 4;
	string runtimeID = 5;
	repeated TraceChunk chunks = 6;
	map<string, string> tags = 7;
	string env = 8;
	string hostname = 9;
	string appVersion = 10;
}

message TraceChunk {
	int32 priority = 1;
	string origin = 2;
	repeated Span spans = 3;
	map<string, string> tags = 4;
	bool droppedTrace = 5;
}

// The Span construct is the same in all circumstances
message Span {
	string service = 1;
	string name = 2;
	string resource = 3;
	uint64 traceID = 4;
	uint64 spanID = 5;
	uint64 parentID = 6;
	int64 start = 7;
	int64 duration = 8;
	int32 error = 9;
	map<string, string> meta = 10;
	map<string, double> metrics = 11;
	string type = 12;
	map<string, bytes> meta_struct = 13;
}