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type HeaderField = record { text; text; };
type HttpRequest = record {
method: text;
url: text;
headers: vec HeaderField;
body: blob;
certificate_version: opt nat16;
};
type HttpUpdateRequest = record {
method: text;
url: text;
headers: vec HeaderField;
body: blob;
};
type HttpResponse = record {
status_code: nat16;
headers: vec HeaderField;
body: blob;
upgrade : opt bool;
streaming_strategy: opt StreamingStrategy;
};
// Each canister that uses the streaming feature gets to choose their concrete
// type; the HTTP Gateway will treat it as an opaque value that is only fed to
// the callback method
type StreamingToken = record {
// application-specific type
};
type StreamingCallbackHttpResponse = record {
body: blob;
token: opt StreamingToken;
};
type StreamingStrategy = variant {
Callback: record {
callback: func (StreamingToken) -> (opt StreamingCallbackHttpResponse) query;
token: StreamingToken;
};
};
service : {
http_request: (request: HttpRequest) -> (HttpResponse) query;
http_request_update: (request: HttpUpdateRequest) -> (HttpResponse);
}
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