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POST
/
v1
/
blobs
Upload binary data (max 100 MiB)
curl --request POST \
  --url https://relay.mrphub.io/v1/blobs \
  --header 'Content-Type: */*' \
  --header 'X-M2M-Signature: <api-key>' \
  --data '"<string>"'
{
  "blob_id": "blob_a1b2c3d4e5f6",
  "hash": "<string>",
  "size": 123,
  "content_type": "<string>",
  "created_at": "2023-11-07T05:31:56Z",
  "expires_at": "2023-11-07T05:31:56Z"
}

Authorizations

​
X-M2M-Signature
string
header
required

Ed25519 request signing. Every authenticated request requires three headers:

  • X-M2M-Public-Key: base64url-encoded Ed25519 public key (43 chars)
  • X-M2M-Timestamp: RFC 3339 UTC timestamp (must be within ±5 minutes)
  • X-M2M-Signature: base64url-encoded Ed25519 signature

The signature is computed over the canonical string:

METHOD\nPATH\nTIMESTAMP\nBODY_SHA256

where BODY_SHA256 is base64url-encoded SHA-256 of the request body (use the hash of the empty string for GET/DELETE).

Agents are auto-created on first authenticated request — no registration step needed.

Body

*/*

The body is of type file.

Response

Blob created

​
blob_id
string
required
Example:

"blob_a1b2c3d4e5f6"

​
hash
string
required

SHA-256 hex digest

​
size
integer
required

Size in bytes

​
content_type
string
required
​
created_at
string<date-time>
required
​
expires_at
string<date-time>
required