阿波罗上传大文件时的内存泄漏问题可以通过以下解决方法来解决:
createReadStream
方法创建文件读取流,然后将其传递给阿波罗上传方法。const { createReadStream } = require('fs');
const fileStream = createReadStream('path/to/file');
apolloClient.mutate({
mutation: UPLOAD_FILE_MUTATION,
variables: {
file: fileStream,
},
});
const chunkSize = 1024 * 1024; // 1MB
const fileSize = getFileSize('path/to/file'); // 获取文件大小函数
const totalChunks = Math.ceil(fileSize / chunkSize);
const fileStream = createReadStream('path/to/file');
for (let currentChunk = 0; currentChunk < totalChunks; currentChunk++) {
const start = currentChunk * chunkSize;
const end = start + chunkSize >= fileSize ? fileSize - 1 : start + chunkSize - 1;
const chunk = fileStream.slice(start, end + 1);
apolloClient.mutate({
mutation: UPLOAD_FILE_CHUNK_MUTATION,
variables: {
chunk,
currentChunk,
totalChunks,
},
});
}
const { createReadStream } = require('fs');
const fileStream = createReadStream('path/to/file');
apolloClient.mutate({
mutation: UPLOAD_FILE_MUTATION,
variables: {
file: fileStream,
},
}).then(() => {
fileStream.close(); // 在请求完成后关闭文件流
});
通过以上方法,我们可以有效地解决阿波罗上传大文件时的内存泄漏问题。
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