mirror of
https://github.com/oceanprotocol/docs.git
synced 2024-11-01 15:55:34 +01:00
129 lines
2.4 KiB
Markdown
129 lines
2.4 KiB
Markdown
# General Endpoints
|
|
|
|
### Nonce
|
|
|
|
#### GET /api/services/nonce
|
|
|
|
Parameters
|
|
|
|
```
|
|
userAddress: String object containing a user's ethereum address
|
|
```
|
|
|
|
Returns: Json object containing the last-used nonce value. The nonce endpoint is just informative, use the current UTC timestamp as a nonce, where required in other endpoints.
|
|
|
|
Example:
|
|
|
|
```
|
|
GET /api/services/nonce?userAddress=0x990922334
|
|
```
|
|
|
|
Response:
|
|
|
|
```json
|
|
{
|
|
"nonce": 23
|
|
}
|
|
```
|
|
|
|
### File Info
|
|
|
|
#### POST /api/services/fileinfo
|
|
|
|
Retrieves Content-Type and Content-Length from the given URL or asset.
|
|
|
|
Parameters
|
|
|
|
For published assets:
|
|
|
|
```
|
|
{
|
|
did: String, DID of the dataset
|
|
serviceId: String, ID of the service
|
|
}
|
|
```
|
|
|
|
For file objects,see https://docs.oceanprotocol.com/core-concepts/did-ddo#files
|
|
|
|
If checksum is requests, file size should be lower < MAX\_CHECKSUM\_LENGTH (see Provider ENVs) If file is larger, checksum WILL NOT be computed.
|
|
|
|
Returns: Json document file info object
|
|
|
|
Example:
|
|
|
|
```
|
|
POST /api/services/fileinfo
|
|
payload:
|
|
{
|
|
"did":"0x1111",
|
|
"serviceId": "0",
|
|
}
|
|
```
|
|
|
|
Response:
|
|
|
|
```json
|
|
[
|
|
{
|
|
"contentLength":"1161",
|
|
"contentType":"application/json",
|
|
"index":0,
|
|
"valid": true
|
|
},...
|
|
]
|
|
```
|
|
|
|
#### Javascript Example
|
|
|
|
```runkit nodeVersion="18.x.x"
|
|
const axios = require('axios')
|
|
|
|
const response = await axios( `https://v4.provider.oceanprotocol.com/api/services/nonce?userAddress=0x0db823218e337a6817e6d7740eb17635deadafaf`)
|
|
|
|
console.log(response.status)
|
|
console.log(response.data)
|
|
|
|
```
|
|
|
|
### Download endpoint
|
|
|
|
#### GET /api/services/download
|
|
|
|
Parameters
|
|
|
|
```
|
|
documentId: String object containing document id (e.g. a DID)
|
|
serviceId: String, representing the list of `file` objects that describe each file in the dataset
|
|
transferTxId: Hex string -- the id of on-chain transaction for approval of datatokens transfer
|
|
given to the provider's account
|
|
fileIndex: integer, the index of the file from the files list in the dataset
|
|
nonce: Nonce
|
|
consumerAddress: String object containing consumer's address
|
|
signature: String object containg user signature (signed message)
|
|
```
|
|
|
|
Returns: File stream. Retrieves the attached asset files.
|
|
|
|
Example:
|
|
|
|
```
|
|
GET /api/services/download
|
|
payload:
|
|
{
|
|
"documentId":"0x1111",
|
|
"serviceId": 0,
|
|
"fileIndex": 0,
|
|
"datatoken": "",
|
|
"consumerAddress":"0x990922334",
|
|
"signature":"0x00110011",
|
|
"transferTxId": "0xa09fc23421345532e34829"
|
|
```
|
|
|
|
Response:
|
|
|
|
```json
|
|
{
|
|
"": ""
|
|
}
|
|
```
|