zipkin-api.yaml

swagger: "2.0"
info:
  version: "1.0.0"
  title: Zipkin API
  description: |
    Zipkin's Query api is rooted at `api/v1`, on a host that by default listens
    on port 9411. It primarily serves the zipkin-ui, although it includes a POST
    endpoint that can receive spans.
host: localhost:9411
basePath: /api/v1
schemes:
  - http
  - https
consumes:
  - application/json
produces:
  - application/json
paths:
  /services:
    get:
      description: |
        Returns a list of all service names associated with annotations.
      responses:
        200:
          description: Succes
          schema:
            type: array
            items:
              type: string
        400:
          description: Bad Request Error
  /spans:
    get:
      description: Get all the span names logged by a particular service
      parameters:
      - name: serviceName
        in: query
        required: true
        description: |
          Ex zipkin-server (required) - service that logged an annotation in a
          trace. The /services endpoint enumerates possible input values.
        type: string
      responses:
        200:
          description: OK
          schema:
            type: array
            items:
              type: string
        400:
          description: Bad Request Error
    post:
      description: |
          Uploads a list of spans encoded per content-type, for example json
          or thrift (TBinaryProtocol big-endian).
      consumes:
        - application/json
        - application/x-thrift
      produces: []
      parameters:
        - name: span
          in: body
          description: A list of spans that belong to any trace.
          required: true
          schema:
            $ref: "#/definitions/ListOfSpans"
      responses:
        202:
          description: Accepted
  /traces:
    get:
      description: |
          Invoking this request retrieves traces matching the below filters.

          Results should be filtered against endTs, subject to limit and
          lookback. For example, if endTs is 10:20 today, limit is 10, and
          lookback is 7 days, traces returned should be those nearest to 10:20
          today, not 10:20 a week ago.

          Time units of endTs and lookback are milliseconds as opposed to
          microseconds, the grain of Span.timestamp. Milliseconds is a more
          familiar and supported granularity for query, index and windowing
          functions
      parameters:
        - name: serviceName
          in: query
          required: false
          description: |
            Ex zipkin-server - service that logged an annotation in a trace.
            Required when constraining on parameters except time and duration.
            The /services endpoint enumerates possible input values.
          type: string
        - name: spanName
          in: query
          required: false
          description: |
            Ex my_span_name - name of a span in a trace.
            Only return traces that contains spans with this name.
          type: string
        - name: annotationQuery
          in: query
          type: string
          required: false
          description: |
             Ex. `http.uri=/foo and retried` - If key/value (has an `=`),
             constrains against Span.binaryAnnotations of time string. If just
             a word, constrains against Span.annotations. Any values are AND
             against eachother. This means a span in the trace must match all of
             these.
        - name: minDuration
          in: query
          type: integer
          description: |
             Ex. 100000 (for 100ms). Only return traces whose `Span.duration` is
             greater than or equal to minDuration microseconds.
        - name: maxDuration
          in: query
          type: integer
          description: |
            Only return traces whose Span.duration is less than or equal to
            `maxDuration` microseconds. Only valid with minDuration.
        - name: endTs
          in: query
          type: integer
          format: int64
          description: |
            Only return traces where all Span.timestamp are at or before this
            time in epoch milliseconds. Defaults to current time.
        - name: lookback
          type: integer
          format: int64
          in: query
          description: |
            Only return traces where all Span.timestamp are at or after
            (`endTs - * lookback`) in milliseconds. Defaults to `endTs`, limited
            to a system parameter `QUERY_LOOKBACK`.
        - name: limit
          in: query
          default: 10
          type: integer
          description: |
            Maximum number of traces to return. Defaults to 10
      responses:
        200:
          description: OK
          schema:
            $ref: "#/definitions/ListOfTraces"
  /trace/{traceId}:
    get:
      parameters:
        - name: traceId
          in: path
          required: true
          description: the 64 or 128-bit hex-encoded id of the trace as a path parameter.
          type: string
        - name: raw
          in: query
          required: false
          description: |
            Note this flag has no value. Ex. /trace/{traceId}?raw

            Normally, the trace endpoint cleans trace data. For example, it merges
            spans by id, adds missing timestamp or duration, corrects clock skew..

            Specifying this flag is a debug case, when you are debugging zipkin
            logic or zipkin instrumentation, and want to see the input to these
            adjusters. For example, this might explain or rule out clock skew.
          type: boolean
      responses:
        200:
          description: OK
          schema:
            $ref: "#/definitions/Trace"
        404:
          description: "`traceId` not found"
  /dependencies:
    get:
      description: |
        Returns dependency links derived from spans.

        Span names are in lowercase, rpc method for example. Conventionally,
        when the span name isn't known, name = "unknown".
      parameters:
        - name: endTs
          in: query
          description: |
            Only return links from spans where `Span.timestamp` are at or before
            this time in epoch milliseconds.
          required: true
          type: integer
          format: int64
        - name: lookback
          in: query
          description: |
            Only return links from spans where all Span.timestamp are at or after
            (`endTs - * lookback`) in milliseconds. Defaults to `endTs`, limited
            to a system parameter `QUERY_LOOKBACK`.
          type: integer
          format: int64
      responses:
        200:
          description: OK
          schema:
            type: array
            title: ListOfDependencyLinks
            items:
              $ref: "#/definitions/DependencyLink"
definitions:
  Endpoint:
    type: object
    title: Endpoint
    properties:
      serviceName:
        type: string
        description: 'Classifier of this endpoint in lowercase, such as "acme-frontend"'
      ipv4:
        type: string
        description: 'The text representation of a IPv4 address associated with this endpoint. Ex. 192.168.99.100'
      ipv6:
        type: string
        description: 'The text representation of a IPv6 address associated with this endpoint. Ex. 2001:db8::c001'
      port:
        type: integer
  Annotation:
    title: Annotation
    type: object
    properties:
      endpoint:
        $ref: "#/definitions/Endpoint"
        description: 'The host that recorded the value, primarily for query by service name.'
      timestamp:
        type: integer
      value:
        type: string
  BinaryAnnotation:
    title: BinaryAnnotation
    type: object
    properties:
      key:
        type: string
      value:
        type: string
      endpoint:
        $ref: '#/definitions/Endpoint'
        description: 'The host that recorded the value, primarily for query by service name.'
  ListOfSpans:
    title: ListOfSpans
    description: 'A list of spans with possibly different trace ids, in no particular order'
    type: array
    items:
      $ref: "#/definitions/Span"
  Trace:
    title: Trace
    type: array
    description: 'List of spans who have the same trace id. Spans in the trace, and annotations in a span are sorted ascending by timestamp. ie first event should be first in the spans list.'
    items:
      $ref: "#/definitions/Span"
  ListOfTraces:
    title: ListOfTraces
    type: array
    items:
      $ref: "#/definitions/Trace"
  Span:
    title: Span
    type: object
    properties:
      traceId:
        type: string
        maxLength: 32
        minLength: 16
        description: 'Randomly generated, unique for a trace, set on all spans within it. 8-byte or 16-byte identifier respectively encoded as 16 or 32 lowercase hex characters.'
      name:
        type: string
        description: 'Span name in lowercase (e.g. rpc method)'
      parentId:
        type: string
        maxLength: 16
        minLength: 16
        description: 'Parent span id. 8-byte identifier encoded as 16 lowercase hex characters.  Can be ommitted or set to nil if span is the root span of a trace.'
      id:
        type: string
        maxLength: 16
        minLength: 16
        description: 'Id of current span, unique in context of traceId. 8-byte identifier encoded as 16 lowercase hex characters.'
      timestamp:
        type: integer
        format: int64
        description: 'Epoch **microseconds** of the start of this span, possibly absent if this an incomplete span.'
      duration:
        type: integer
        format: int64
        description: 'Duration in **microseconds** of the critical path, if known. Durations of less than one are rounded up.'
      debug:
        type: boolean
        description: 'Indicator whether this trace was sampled from standard traffic or forced.  Usually coupled to the X-B3-Flags header, which when set to true is a request to store this span even if it overrides sampling policy.'
      annotations:
        title: ListOfAnnotations
        type: array
        items:
          $ref: '#/definitions/Annotation'
      binaryAnnotations:
        title: ListOfBinaryAnnotations
        type: array
        items:
          $ref: '#/definitions/BinaryAnnotation'
  DependencyLink:
    title: DependencyLink
    type: object
    properties:
      parent:
        type: string
      child:
        type: string
      callCount:
        type: integer
      errorCount:
        type: integer