Question

我尝试使用API从Arduino上传图像（JPG）到Google驱动器。有时它可以工作（我按照指南中的说明执行POST请求并发送所有位），并且收到200 OK，但有时，在发送所有字节后，Google驱动器没有任何响应。有什么建议吗？

这里有一部分代码用于上传（请注意，我仅粘贴了“问题”部分）。 -有时由于我收到200响应，所以周期结束。 -有时我没有收到回复，所以我再次开始发送图像。

在

while (millis() - startTime < 15000 && !received)

我试图等待长达十分钟，但没有回应

Serial.println("Token request has been succesful. Starting upload");
bool succesful = false;

// I have obtained the uploadID, now I start uploading
String location = "https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable&upload_id=" + uploadID;

received = true;

while(!succesful){                              // I upload until it is successful

            // I stop the previous client session, because now I start a new one, to do the PUT request and upload the file
            client.stop();

            // Upload request

            if (client.connect("www.googleapis.com", 443)) {
                client.println("PUT " + location + " HTTP/1.1");
                client.println("User-Agent: Arduino Camera");
                client.println("Content-Length: "  + String(image.size()));
                client.println("Connection: close");
                client.println();
                while (image.available()) {
                    client.write(image.read());         // Here I send the bytes of the image
                }
                Serial.println(".");
                image.close();
                received = false;
            } else {
                Serial.println("Connection failed");
                received = true;
            }


            // Listening to the response
            startTime = millis();
            String code = "";
            while (millis() - startTime < 15000 && !received) { //try to listen for 5 seconds
                int i = 0;
                while (client.available() && i < 12) {
                    received = true;
                    char c = client.read();
                    Serial.write(c);
                    code = code + c;
                    i++;
                }

                // HTTP 200 OK
                if (code == "HTTP/1.1 200" || code == "HTTP/1.1 201")
                {
                    while(client.available()) {
                        char c = client.read();
                        Serial.write(c);
                    }
                    Serial.println("\nUpload succesful");
                    succesful = true;
                    // client.stop();
                    return succesful;

                    }

if (!received) {
                client.stop();
                Serial.println("\nUpload interrupted. Starting a new session");

                // I have to open image again
                image = SD.open(filepath, FILE_READ);
            }

        }

Google Drive API上传无响应

0 个答案: