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Step 1: Upload Encrypted Data

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This is the first step of all processes. Your client application needs to prepare the encrypted data locally first, then call this endpoint to upload it. After success, you will get a unique ID for subsequent operations.

Note

What you send to this endpoint should beciphertext, not original text. Please refer to the JavaScript examples on the documentation homepage to learn how to encrypt on the client side.

Request body

Contains encrypted data and optional TTL.

compressedData

stringrequired

Required: Base64 string of encrypted and LZString compressed data. Please refer to the JS code example on the documentation homepage.

ttl

numberoptional

Optional: Retention time for the snippet (seconds). Positive numbers indicate seconds (maximum about 30 days), -1 indicates permanent storage. Default is 3600.

Name	Type	Attributes	Description
`compressedData`	string	required	Required: Base64 string of encrypted and LZString compressed data. Please refer to the JS code example on the documentation homepage.
`ttl`	number	optional	Optional: Retention time for the snippet (seconds). Positive numbers indicate seconds (maximum about 30 days), -1 indicates permanent storage. Default is 3600.

Response

200 / OK

Snippet created successfully! Returns the unique ID of the snippet.

JSON

400 / Bad Request

Request body missing, malformed, or invalid parameters.

JSON

413 /

Request body too large. Uploaded data (after compression) exceeds server limits.

JSON

Quick start

Pick your language to see usage examples

Auth mode:

cURL command

curl -X POST 'https://paste.sdjz.wiki/api/v1/api/store' \
  -H 'Content-Type: application/json' \
  -d '{"compressedData": "PIZQqgLgUgNg6gEQEYAUCuBrA7gSQBoDMAiigPakCOAYgQIYBKEA7AFbABqAEiAJYBmAYSJUAznHbsAcgBMBAFQDSAegCcALz4BZKHDwql9DADtOCqvQCCATQowAWhgVgYAUwBMAFgC8QA=="}'

Frequently asked questions

Are there any special restrictions for the Step 1: Upload Encrypted Data API?

Step 1: Upload Encrypted Data follows our standard usage policy. Refer to the endpoint reference above for the exact rate limits and parameter requirements. Reach out if you have unusual needs.

Are the APIs on UAPI free to use?

UAPI gives every visitor free credits so you can call any endpoint right away. Visitor credits have a usage cap, and if you need more you can for additional credits.

Do I need to register an account to use UAPI?

No registration is required for visitor credit calls. If you need more credits or want to manage your call history, you can register a free account. Signed-in users get more free credits and can review usage details in the console.

Which languages and use cases does UAPI support?

Our APIs follow standard HTTP and RESTful design, so any language that can send network requests works — including JavaScript (Node.js, Vue, React), Python, Java, PHP, Go, C#, and more. They fit web apps, mobile backends, mini-program cloud functions, automation scripts, and similar scenarios.

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