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我必須將由cassandra返回的json結果集流流到瀏覽器。我得到它的工作使用快速流,但所涉及的字符串化的每一行和並把它傳遞給res.pipe()Expressjs - 流cassandra結果集到客戶端
我很奇怪,爲什麼下面沒有工作:
app.get('/api/v1/streamevents', function (req, res) {
let cstream = client.stream(selectQuery, ['339aa84a-4bba-411f-a4fb-38167a987cd2'],options)
cstream.pipe(res)
})
我獲得以下錯誤:
TypeError: First argument must be a string or Buffer
at ServerResponse.write (_http_outgoing.js:458:11)
at ResultStream.ondata (_stream_readable.js:555:20)
at emitOne (events.js:96:13)
at ResultStream.emit (events.js:188:7)
at ResultStream.Readable.read (_stream_readable.js:381:10)