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Set explicit Host header for HTTP.jl v2 compatibility #35

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Merged
jbrea merged 1 commit into from
Jun 23, 2026
Merged

Set explicit Host header for HTTP.jl v2 compatibility #35

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7 changes: 6 additions & 1 deletion src/data.jl
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Original file line number Diff line number Diff line change
@@ -1,4 +1,9 @@
const API_URL = "https://www.openml.org/api/v1/json"
# Host name without any port. HTTP.jl v2 otherwise puts the port into the `Host`
# header (e.g. "www.openml.org:443"), which OpenML's server rejects (it closes the
# connection, surfacing as an "unexpected EOF" parse error). Setting `Host`
# explicitly keeps the default port out of it; HTTP.jl v0.x/v1.x already do so.
const API_HOST = HTTP.URI(API_URL).host

struct OpenMLAPIError <: Exception
msg::String
Expand All @@ -11,7 +16,7 @@ end
# Data API. See REST API on https://www.openml.org/apis
function get(query)
try
r = HTTP.request("GET", string(API_URL, query))
r = HTTP.request("GET", string(API_URL, query); headers = ["Host" => API_HOST])
return JSON.parse(String(r.body))
catch e
if isa(e, HTTP.StatusError) && e.status == 412
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