您可以使用 API 将文件上传到助理。当您与助理聊天时，可以使用这些文件。 如需了解如何在助理中上传文件，请参阅上传文件并就文件内容进行对话。
如需使用 API 将内容上传到助理，请运行以下 curl 命令：
curl -X POST \
-H "Authorization: Bearer $(gcloud auth print-access-token)" \
-H "Content-Type: application/json" \
-H "X-Goog-User-Project: PROJECT_ID" \
"https://discoveryengine.googleapis.com/v1alpha/projects/PROJECT_ID/locations/global/collections/default_collection/engines/APP_ID/sessions/SESSION_ID:addContextFile" \
-d '{
"name": "projects/PROJECT_ID/locations/global/collections/default_collection/engines/APP_ID/sessions/SESSION_ID",
"fileName": "FILE_NAME",
"mimeType": "MIME_TYPE",
"fileContents": "BASE64_ENCODED_FILE",
}'
替换以下内容：
PROJECT_ID：您的 Google Cloud 项目的 ID。APP_ID：应用的 ID。SESSION_ID：会话的 ID。您可以从创建会话的响应中获取此 ID，如存储会话信息并获取响应中所述。FILE_NAME：文件的名称。MIME_TYPE：文件的 MIME 类型。BASE64_ENCODED_FILE：数据的 base64 表示（ASCII 字符串）。此字符串应类似于以下字符串：/9j/4QAYRXhpZgAA...9tAVx/zDQDlGxn//2Q==
命令和响应示例：
curl -X POST \
-H "Authorization: Bearer $(gcloud auth print-access-token)" \
-H "Content-Type: application/json" \
-H "X-Goog-User-Project: 1234" \
"https://discoveryengine.googleapis.com/v1alpha/projects/1234/locations/global/collections/default_collection/engines/myapp/sessions/16002628354770206943:addContextFile" \
-d '{
"name": "projects/1234/locations/global/collections/default_collection/engines/myapp/sessions/16002628354770206943",
"fileName": "Hello World.pdf",
"mimeType": "application/pdf",
"fileContents": JVBERi0xLjQKJdPr6eEKMSAwIG9iago8PC9UaXRsZSAoSGVsbG8gd29ybGQpCi9Qcm9kdWNlciAoU2tpYS9QREYgbTEzMCBHb29nbGUgRG9jcyBSZW5kZXJlcik+PgplbmRvYmoKMyAwIG9iago8PC..............KMDAwMDAxNDk0NCAwMDAwMCBuIAp0cmFpbGVyCjw8L1NpemUgMTIKL1Jvb3QgNyAwIFIKL0luZm8gMSAwIFI+PgpzdGFydHhyZWYKMTU0NjYKJSVFT0YK",
}'
------------------
{
"session": "projects/1234/locations/global/collections/default_collection/engines/myapp/sessions/16002628354770206943",
"fileId": "11157546467692423460",
"tokenCount": "258"
}