View Source Tesla.Middleware.KeepRequest (tesla v1.12.1)
Store request url, body and headers into :opts
.
Examples
defmodule MyClient do
use Tesla
plug Tesla.Middleware.KeepRequest
plug Tesla.Middleware.PathParams
end
{:ok, env} = MyClient.post("/users/:user_id", "request-data", opts: [path_params: [user_id: "1234]])
env.body
# => "response-data"
env.opts[:req_body]
# => "request-data"
env.opts[:req_headers]
# => [{"request-headers", "are-safe"}, ...]
env.opts[:req_url]
# => "http://localhost:8000/users/:user_id
Observability
In practice, you would combine Tesla.Middleware.KeepRequest
, Tesla.Middleware.PathParams
, and
Tesla.Middleware.Telemetry
to observe the request and response data.
Keep in mind that the request order matters. Make sure to put Tesla.Middleware.KeepRequest
before
Tesla.Middleware.PathParams
to make sure that the request data is stored before the path parameters are replaced.
While keeping in mind that this is an application-specific concern, this is the overall recommendation.