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# A simple HTTP library built using CURL
use -lcurl
use <curl/curl.h>
struct HTTPResponse(code:Int, body:Text)
enum _Method(GET, POST, PUT, PATCH, DELETE)
func _send(method:_Method, url:Text, data:Text?, headers:[Text]=[] -> HTTPResponse):
chunks : @[Text] = @[]
save_chunk := func(chunk:CString, size:Int64, n:Int64):
chunks.insert(inline C:Text {
Text$format("%.*s", _$size*_$n, _$chunk)
})
return n*size
inline C {
CURL *curl = curl_easy_init();
struct curl_slist *chunk = NULL;
curl_easy_setopt(curl, CURLOPT_URL, Text$as_c_string(_$url));
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, _$save_chunk.fn);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, _$save_chunk.userdata);
}
defer:
inline C {
if (chunk)
curl_slist_free_all(chunk);
curl_easy_cleanup(curl);
}
when method is POST:
inline C {
curl_easy_setopt(curl, CURLOPT_POST, 1L);
}
if posting := data:
inline C {
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, Text$as_c_string(_$posting));
}
is PUT:
inline C {
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PUT");
}
if putting := data:
inline C {
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, Text$as_c_string(_$putting));
}
is PATCH:
inline C {
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "PATCH");
}
if patching := data:
inline C {
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, Text$as_c_string(_$patching));
}
is DELETE:
inline C {
curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
}
else:
pass
for header in headers:
inline C {
chunk = curl_slist_append(chunk, Text$as_c_string(_$header));
}
inline C {
if (chunk)
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, chunk);
}
code := Int64(0)
inline C {
CURLcode res = curl_easy_perform(curl);
if (res != CURLE_OK)
fprintf(stderr, "curl_easy_perform() failed: %s\n", curl_easy_strerror(res));
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &_$code);
}
return HTTPResponse(Int(code), "".join(chunks))
func get(url:Text, headers:[Text]=[] -> HTTPResponse):
return _send(GET, url, none, headers)
func post(url:Text, data="", headers=["Content-Type: application/json", "Accept: application/json"] -> HTTPResponse):
return _send(POST, url, data, headers)
func put(url:Text, data="", headers=["Content-Type: application/json", "Accept: application/json"] -> HTTPResponse):
return _send(PUT, url, data, headers)
func patch(url:Text, data="", headers=["Content-Type: application/json", "Accept: application/json"] -> HTTPResponse):
return _send(PATCH, url, data, headers)
func delete(url:Text, data:Text?=none, headers=["Content-Type: application/json", "Accept: application/json"] -> HTTPResponse):
return _send(DELETE, url, data, headers)
func main():
say("GET:")
say(get("https://httpbin.org/get").body)
say("Waiting 1sec...")
sleep(1)
say("POST:")
say(post("https://httpbin.org/post", `{"key": "value"}`).body)
say("Waiting 1sec...")
sleep(1)
say("PUT:")
say(put("https://httpbin.org/put", `{"key": "value"}`).body)
say("Waiting 1sec...")
sleep(1)
say("DELETE:")
say(delete("https://httpbin.org/delete").body)
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