2. Select the "Expiration time" (Token validity time), select "User" (choose the specified user to perform the API operation), click "Generate token", copy the `Token` string, and click "Submit".
@ -51,7 +51,7 @@ The configuration in the figure below indicates that the task gets the file iden
- The file transfer between upstream and downstream tasks is based on the resource center as a transfer, and the data is saved in the `DATA_TRANSFER` directory of the resource center. Therefore, **the resource center function must be enabled**, please refer to [Resource Center Configuration Details](../resource/configuration.md) for details, otherwise the file parameter function cannot be used.
- The file naming rule is `DATA_TRANSFER/DATE/ProcessDefineCode/ProcessDefineVersion_ProcessInstanceID/TaskName_TaskInstanceID_FileName`
- If the transferred file data is a folder, it will be packaged into a compressed file with a suffix of `.zip` and uploaded. The downstream task will unzip and save it in the corresponding directory after receiving it
- If you need to delete the file data, you can delete the corresponding folder in the `DATA_TRANSFER` directory of the resource center. If you delete the date subdirectory directly, all the file data under that date will be deleted. You can also use the [Open API interface](../open-api.md) (`resources/data-transfer`) to delete the corresponding file data (delete data N days ago).
- If you need to delete the file data, you can delete the corresponding folder in the `DATA_TRANSFER` directory of the resource center. If you delete the date subdirectory directly, all the file data under that date will be deleted. You can also use the [Open API interface](../api/open-api.md) (`resources/data-transfer`) to delete the corresponding file data (delete data N days ago).
- If there is a task chain task1->task2->tas3, then the downstream task task3 can also get the file data of task1
- Support one-to-many transmission and many-to-one transmission
- If you frequently transfer a large number of files, it is obvious that the system IO performance will be affected by the amount of transferred data