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kumomta/docs/reference/kumo.http/build_client.md
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2026-05-27 06:47:55 +01:00

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# kumo.http.build_client
```lua
kumo.http.build_client { PARAMS }
```
Constructs an HTTP client object.
The client maintains state, including a connection pool, that can be used
across multiple HTTP requests.
`PARAMS` is an object-style table with the following keys:
* `user_agent` - optional string that will be used to set the `User-Agent` header
for all requests made by the client
* `connection_verbose` - optional boolean. If true, additional diagnostics
around the connection attempt will be logged and can be seen by setting the
diagnostic filter to include `reqwest=trace`. {{since('2024.06.10-84e84b89', inline=True)}}
* `pool_idle_timeout` - optional duration. Sets the maximum time that an idle
connection remains in the connection pool. The default is `90 seconds`.
{{since('2024.06.10-84e84b89', inline=True)}}.
* `timeout` - optional duration. Sets the default timeout to use for each
request made by the client. Can be overridden using the Request object.
The default is `60 seconds`. {{since('2024.06.10-84e84b89', inline=True)}}.
* `accept_invalid_certs` - optional boolean. If true, disables SSL/TLS
certificate verification for all requests made by the client.
{{since('2026.05.12-a6845223', inline=True)}}
!!! danger
Disabling certificate verification removes protection against
man-in-the-middle attacks: any party on the network path can present
a forged certificate and intercept or modify the traffic without
detection. Only enable this in development or testing environments,
never in production.
```lua
local response = kumo.http.build_client({}):get('https://example.com/'):send()
print(response:status_code(), response:status_reason())
for k, v in pairs(response:headers()) do
print('Header', k, v)
end
print(response:text())
```
## Client Methods
The returned client object has the following methods:
### client:get(URL)
Returns a [Request](Request.md) object that has been configured to make a GET
request to the specified URL. The URL is a string.
### client:post(URL)
Returns a [Request](Request.md) object that has been configured to make a POST
request to the specified URL. The URL is a string.
### client:put(URL)
Returns a [Request](Request.md) object that has been configured to make a PUT
request to the specified URL. The URL is a string.
### client:close()
{{since('2024.09.02-c5476b89')}}
Explicitly destroy the client, closing any connections in its cache.