Message Format
All Communication between Edge Layer and Local Layer happen throough message based communication.
The following message formats exists:
- http-request
- http-response
http-request
This message type is used to transport incoming http-requests to an arbitrary endpoint.
Message Header
| Name | Cardinality | Datatype | Value | Description |
|---|---|---|---|---|
| X-MESSAGE-TYPE | required | string | http-request | type of the message |
| X-MESSAGE-VERSION | required | string | 2020-05-22 | Version of the message |
| X-REQUEST-ID | required | string | sample: 953bd331-8a3f-41fe-887d-9c819201d32b | |
| X-ENDPOINT-TYPE | required | string | supported values are ‘echo’,’http’ | |
| X-ENDPOINT-ID | required | string | sample: ‘ENDPOINT1’ | |
| X-HTTP-METHOD | required | string | sample: ‘GET’, ‘POST’, ‘DELETE’ … | |
| X-HTTP-PATH | required | string | sample: ‘/order/123’ | |
| X-HTTP-QUERY | optional | string | sample: ‘param1=value1¶m2=value2’ | |
| X-HTTP-HOST | required | string | sample: ‘api.domain.tld’ | hostname of the request |
| X-HTTP-TIMESTAMP | required | string | sample: 2020-05-01T09:12:32Z | received timestamp |
| X-LOCAL2EDGE-DESTINATION | required | string | sample: local2edge |
Message Body
The body contains a exact representation of the request body received by the edge layer.
http-response
Message Header
| Name | Cardinality | Datatype | Value | Description |
|---|---|---|---|---|
| X-MESSAGE-TYPE | required | string | http-request | type pf the message |
| X-MESSAGE-VERSION | required | string | 2020-05-22 | Version of the message |
| X-REQUEST-ID | required | string | sample: 953bd331-8a3f-41fe-887d-9c819201d32b | |
| X-HTTP-STATUSCODE | required | string | sample: 200 | http status code for the response |
| X-CONTENT-ISNULL | optional | string | supported values are ‘true’,’false’ | |
| X-HTTP-TIMESTAMP | optional | string | sample: 2020-05-01T09:12:32Z | received timestamp |
Message Body
The body contains a exact representation of the response body received by the local layer.