# Overview
In our example, the Doc with the name "Certification/certification_2022_v1.txt"
is stored in the "Certification"
folder ("Certification/"
):
- The
"storage_class"
of the Doc is"access_optimized"
. This storage class is for frequently accessed data. - The Doc was last updated on the 28th of March 2022 at 12:27:49.687 p.m. GMT (
"updated_ts": 1648470469.687"
). - The
"status"
of the Doc is"ok"
. The Doc was copied, the copy of the Doc was successfully attached to the Twin, and it is stored in the Twin's directory. - The
"description"
holds attributes of the Doc in form of key-value pairs.
Attribute | Type | Description | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
creation_certificate | dictionary | Certificate generated automatically by the system upon sending a request to copy the Doc (attach_twin_doc endpoint). It cannot be modified after it has been generated.
| |||||||||||||||
storage_class | string, value can be "access_optimized" or "cost_optimized" | Storage class of the Doc: - "access_optimized" : Storage class for frequently accessed data.- "cost_optimized" : Storage class for automatic cost savings for less frequently accessed data. Once the Doc has been copied and attached to the Twin, the "storage_class" cannot be changed. | |||||||||||||||
status | string, value can be "copying" , "ok" , "error" , or "hash_mismatch" | Status of the Doc: - "copying" : The Doc is in the process of being copied.- "ok" : The copy of the Doc has been successfully generated. It is attached to the Twin and stored in the Twin's directory.- "hash_mismatch" : The "hash" provided in the request does not match the hash of the Doc. A copy of the Doc could not be generated.- "error" : An error occurred and a copy of the Doc could not be generated. | |||||||||||||||
updated_ts | timestamp | Time at which the Doc was last updated. Measured in seconds (to three decimal places) that have elapsed since the Unix epoch(opens new window). | |||||||||||||||
description | dictionary | User-defined key-value pairs: - key: It must match the regular expression(opens new window) ^[a-z_][0-9a-z_]{0,63}$ .- value: JSON compliant value. For more details consult the description field section. |
*
The "hash"
attribute is only displayed in the "creation_certificate"
if it was provided in the request to the attach_twin_doc endpoint.
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