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我最近開始使用azure函數將base64字符串轉換爲圖像並將此圖像存儲在blob中。 但是我沒有找到關於如何將特定文件類型寫入blob的任何信息,就像我可以通過fs.writeFile()在Node中正常執行的操作一樣。Azure函數Node.js:將圖像寫入Blob
有人可以告訴我,如果它甚至可以做到這一點與Azure函數的正常「輸出」? 目標是我可以將base64字符串轉換爲圖像並將其保存在一個blob中。
module.exports = function (context, input) {
var image = input;
var bitmap = new Buffer(image, 'base64');
//base64 string to test: "data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
function decodeBase64Image(dataString) {
var matches = dataString.match(/^data:([A-Za-z-+\/]+);base64,(.+)$/),
response = {};
if (matches.length !== 3) {
return new Error('Invalid input string');
}
response.type = matches[1];
response.data = new Buffer(matches[2], 'base64');
return response;
}
var imageBuffer = decodeBase64Image(input);
//context.bindings.outputBlob = {'test2.jpg', imageBuffer.data};
context.done(null, imageBuffer);
};
我functions.json看起來是這樣的:
{
"bindings": [
{
"type": "manualTrigger",
"direction": "in",
"name": "input"
},
{
"type": "blob",
"name": "outputBlob",
"path": "logo/{rand-guid}",
"connection": "npsmonitordev_STORAGE",
"direction": "out"
}
],
"disabled": false
}