how can I configure the URI address of the HTTP sink using variables extracted from the remap transforms?

[loveyang2012]

I send logs to openobserve by sink.http;

the original log like this:

{"contents": {"content": "prodnginx 200 499 0.020 180.120.167.213 96 [28/Jun/2024:18:27:51 +0800] "POST /mc/device/","host": "dmz-k-paas-16c-e-9.novalocal","namespace": "pushcenter","pod": "nginx-pushcenter-88d99c45b-dz5pg","service": "nginx-pushcenter"}}

the right configure is like this :

_[sources.a]
type = "file"
include = [ "/data/vector/json.log" ]

[transforms.b]
type = "remap"
inputs = [ "a" ]
source = """
. = parse_json!(string!(.message))
"""
[transforms.c]
type = "remap"
inputs = [ "b" ]
source = """
. = .contents
"""

[sinks.openobserver]
type = "http"
inputs = [ "c" ]
uri = "http://192.168.168.137:5080/api/default/nginx/_json"
method = "post"
auth.strategy = "basic"
auth.user = "[email protected]"
auth.password = "GzoDXJ7RXJMOTnoU"
compression = "gzip"
encoding.codec = "json"
encoding.timestamp_format = "rfc3339"
healthcheck.enabled = false_

but now I want to use a variable to config the uri ,like this

_uri = "http://192.168.168.137:5080/api/default/{{ .service }}/json"

it not works .

how can I do it ,now ?

[jszwedko]

Unfortunately this isn't possible yet. See #1155