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Adhere to telemetry schema 0.0.2 

* The schema and version of telemetry data is exposed through the
  Content-Type header instead of through a custom HTTP Header.

See [Prometheus Client Data Exposition Format][1] for more details.

[1]: https://docs.google.com/a/soundcloud.com/document/d/1ZjyKiKxZV83VI9ZKAXRGKaUKK2BIWCT7oiGBKDBpjEY/edit#heading=h.wnviarbnyxcj
This commit is contained in:
Bernerd Schaefer 2013-04-25 17:43:03 +02:00
parent 04c7f7bc7f
commit f60c783b29
2 changed files with 4 additions and 7 deletions
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8
prometheus/constants.go
View File

@ -24,12 +24,10 @@ const (
// The format of the exported data. This will match this library's version, // The format of the exported data. This will match this library's version,
// which subscribes to the Semantic Versioning scheme. // which subscribes to the Semantic Versioning scheme.
APIVersion = "0.0.1" APIVersion = "0.0.2"
// When reporting telemetric data over the HTTP web services interface, a web // The content type and schema information set on telemetry data responses.
// services interface shall include this header along with APIVersion as its TelemetryContentType = `application/json; schema="prometheus/telemetry"; version=` + APIVersion
// value.
ProtocolVersionHeader = "X-Prometheus-API-Version"
// The customary web services endpoint on which telemetric data is exposed. // The customary web services endpoint on which telemetric data is exposed.
ExpositionResource = "/metrics.json" ExpositionResource = "/metrics.json"

3
prometheus/registry.go
View File

@ -240,8 +240,7 @@ func (registry registry) Handler() http.HandlerFunc {
if strings.HasSuffix(url.Path, jsonSuffix) { if strings.HasSuffix(url.Path, jsonSuffix) {
header := w.Header() header := w.Header()
header.Set(ProtocolVersionHeader, APIVersion) header.Set(contentTypeHeader, TelemetryContentType)
header.Set(contentTypeHeader, jsonContentType)
writer := decorateWriter(r, w) writer := decorateWriter(r, w)