...
v1/chain/get_nft_image example
POST:
'{“url”:”https://fio.eosrio.io/v1/chain/get_nft_image”}'
RESPONSE:
'{“image”:”https://imgur.com/exampleimage.png”}'
IPFS Url formatting:
'{“image”:”https://{gatewayURL}/ipfs/{content ID}/{optional path to resource}”}'
Wrap/Unwrap
wrap
Create wFIO on Ethereum chain
Registering oracles
wFIO is created using the
wrapaction
Implementation
New action:
wrap
Request body
...
Parameter
...
Required
...
Format
...
Definition
...
account
...
Yes
...
String
...
Public address on ETH blockchain where wrapped FIO should be delivered.
...
amount
...
Yes
...
Positive Int
...
Amount of wFIO (in SUFs) to unwrap.
Example
| Code Block |
|---|
{
"amount": 100000000000,
"account": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B"
} |
Processing
Request is validated per Exception handling.
Consensus required. Transaction is executed when all registered oracles have called
wrap(submitted their “observation”).wFIO is minted and transferred to
account
Exception handling
...
Error condition
...
Trigger
...
Type
...
fields:name
...
fields:value
...
Error message
...
Invalid amount
...
Transfer amount is not valid.
...
400
...
"amount"
...
Value sent in, e.g. "-1"
...
"Invalid amount"
...
Invalid public address
...
Recipient public address is not valid
...
400
...
"account"
...
Value sent in, e.g. "notvalidethaddress"
...
"Invalid public address"
...
No authority
...
The signer is not a registered Oracle and does not have authority to call this function
...
403
...
"Only a wFIO Oracle may call this function"
Response body
...
Parameter
...
Format
...
Definition
...
status
...
String
...
OK if successful
Example
| Code Block |
|---|
{
"status": "OK"
} |
unwrap
Convert wFIO on Ethereum chain to FIO Tokens on FIO chain.
Implementation
New action:
unwrap
Request body
...
Parameter
...
Required
...
Format
...
Definition
...
amount
...
Yes
...
Positive Int
...
Amount of wFIO (in SUFs) to unwrap.
...
fio_address (hash)
...
Yes
...
String
...
Hash of the FIO Address where FIO Tokens should be delivered.
...
max_oracle_fee
...
Yes
...
Positive Int
...
max_fee?
...
Yes
...
Positive Int
...
Maximum amount of SUFs the user is willing to pay for fee. Should be preceded by /get_fee for correct value.
...
tpid?
...
Yes
...
FIO Address
...
FIO Address of the entity which generates this transaction. TPID rewards will be paid to this address. Set to empty if not known.
Example
| Code Block |
|---|
{
"amount": 100000000000,
"fio_address": "FIO8k7N7jU9eyj57AfazGxMuvPGZG5hvXNUyxt9pBchnkXXx9KUuD",
"max_oracle_fee": 1000000000,
"max_fee": 1000000000,
"tpid": "rewards@wallet"
} |
Processing
Request is validated per Exception handling.
No Oracle Consensus required.
Oracle fee is transferred from actor account to all registered oracles in even amount.
wFIO is burned.
Exception handling
...
Error condition
...
Trigger
...
Type
...
fields:name
...
fields:value
...
Error message
...
Invalid FIO address
...
Recipient public address is not valid
...
400
...
"account"
...
Value sent in, e.g. "notvalidethaddress"
...
"Invalid FIO address"
...
Invalid amount
...
Transfer amount is not valid.
...
400
...
"amount"
...
Value sent in, e.g. "-1"
...
"Invalid amount"
...
Insufficient balance
...
Balance is less than amount + oracle fee + chain fee
...
400
...
"amount"
...
Value sent in, e.g. "100000000000"
...
"Insufficient balance"
...
Invalid oracle fee value
...
max_oracle_fee format is not valid
...
400
...
"max_oracle_fee"
...
Value sent in, e.g. "-100"
...
"Invalid oracle fee value"
...
Oracle fee exceeds maximum
...
Actual oracle fee is greater than supplied max_oracle_fee
...
400
...
"max_oracle_fee"
...
Value sent in, e.g. "1000000000"
...
"Oracle fee exceeds supplied maximum"
...
No authority
...
The signer is not a registered Oracle and does not have authority to call this function
...
403
...
"Only a wFIO Oracle may call this function"
...
Invalid fee value?
...
max_fee format is not valid
...
400
...
"max_fee"
...
Value sent in, e.g. "-100"
...
"Invalid fee value"
...
Fee exceeds maximum?
...
Actual fee is greater than supplied max_fee
...
400
...
"max_fee"
...
Value sent in, e.g. "1000000000"
...
"Fee exceeds supplied maximum"
...
Invalid TPID?
...
tpid format is not valid
...
400
...
"tpid"
...
Value sent in, e.g. "notvalidfioaddress"
...
"TPID must be empty or valid FIO address"
Response body
...
Parameter
...
Format
...
Definition
...
status
...
String
...
OK if successful
...
oracle_fee_collected
...
Int
...
Amount of SUFs collected as Oracle fee
Example
| Code Block |
|---|
{
"status": "OK",
"oracle_fee_collected": 2000000000
} |
Oracles
regoracle
Register Oracle.
Registering oracles
Each Oracle is registered by custodians using
regoracleaction.
Implementation
New action:
regoracle
Request body
...
Parameter
...
Required
...
Format
...
Definition
...
ethaddress
...
Yes
...
Ethereum public address
...
Ethereum address owned by the Oracle.
Example
| Code Block |
|---|
{
"ethaddress": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B"
} |
Processing
Request is validated per Exception handling.
Consensus required. Oracle is added after 2/3+1 Custodians have called
regoraclewith sameethaddress.Ethereum address is registered as a valid Oracle.
Exception handling
...
Error condition
...
Trigger
...
Type
...
fields:name
...
fields:value
...
Error message
...
Invalid address
...
Ethereum address is not valid
...
400
...
"ethaddress"
...
Value sent in, e.g. "notvalidethaddress"
...
"Invalid address"
...
No authority
...
The signer is not a registered Custodian and does not have authority to call this function
...
403
...
"Only a wFIO custodian may call this function"
...
Already registered
...
The Ethereum address is already registered as an Oracle
...
400
...
"ethaddress"
...
“Oracle is already registered”
Response body
...
Parameter
...
Format
...
Definition
...
status
...
String
...
OK if successful
Example
| Code Block |
|---|
{
"status": "OK"
} |
unregoracle
Unregister Oracle.
Implementation
New action:
unregoracle
Request body
...
Parameter
...
Required
...
Format
...
Definition
...
ethaddress
...
Yes
...
Ethereum public address
...
Ethereum address owned by the Oracle.
Example
| Code Block |
|---|
{
"ethaddress": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B"
} |
Processing
Oracle is removed after 2/3+1 Custodians have unregistered the same Oracle Ethereum address
Consensus required. Oracle is removed after 2/3+1 Custodians have called
unregoraclewith sameethaddress.Ethereum address is removed as a valid Oracle.
Exception handling
...
Error condition
...
Trigger
...
Type
...
fields:name
...
fields:value
...
Error message
...
Invalid oracle
...
Oracle is not registered
...
400
...
"ethaddress"
...
Value sent in, e.g. "ethaddressnotinoracletable"
...
"Invalid oracle"
...
No authority
...
The signer is not a registered Custodian and does not have authority to call this function
...
403
...
"Only a wFIO custodian may call this function"
Response body
...
Parameter
...
Format
...
Definition
...
status
...
String
...
OK if successful
Example
| Code Block |
|---|
{
"status": "OK"
} |
Custodians
regcust
Register Custodian
Registering Custodians
Each Custodian is registered using
regcustaction.
Implementation
New action:
regcust
Request body
...
Parameter
...
Required
...
Format
...
Definition
...
ethaddress
...
Yes
...
Ethereum public address
...
Ethereum address owned by the Custodian.
Example
| Code Block |
|---|
{
"ethaddress": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B"
} |
Processing
Request is validated per Exception handling.
Consensus required. Custodian is added after 2/3+1 custodians have registered the same Ethereum address.
Ethereum address is added as a valid Custodian.
Exception handling
...
Error condition
...
Trigger
...
Type
...
fields:name
...
fields:value
...
Error message
...
Invalid address
...
Ethereum address is not valid
...
400
...
"ethaddress"
...
Value sent in, e.g. "notvalidethaddress"
...
"Invalid address"
...
No authority
...
The signer is not a registered Custodian and does not have authority to call this function
...
403
...
"Only a wFIO custodian may call this function"
...
Already registered
...
The Ethereum address is already registered as an Custodian
...
400
...
"ethaddress"
...
“Custodian is already registered”
Response body
...
Parameter
...
Format
...
Definition
...
status
...
String
...
OK if successful
unregcust
Unregister Custodian.
Implementation
New action: unregcust
Request body
...
Parameter
...
Required
...
Format
...
Definition
...
ethaddress
...
Yes
...
Ethereum public address
...
Ethereum address owned by the Custodian.
Example
| Code Block |
|---|
{
"ethaddress": "0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B"
} |
Processing
Request is validated per Exception handling.
Consensus required. Custodian is removed after 2/3+1 custodians have registered the same Ethereum address.
Ethereum address is removed as a valid Custodian.
Exception handling
...
Error condition
...
Trigger
...
Type
...
fields:name
...
fields:value
...
Error message
...
Invalid custodian
...
Custodian is not registered
...
400
...
"ethaddress"
...
Value sent in, e.g. "ethaddressnotincusttable"
...
"Invalid custodian"
...
Invalid address
...
Ethereum address is not valid
...
400
...
"ethaddress"
...
Value sent in, e.g. "notvalidethaddress"
...
"Invalid address"
...
No authority
...
The signer is not a registered Custodian and does not have authority to call this function
...
403
...
"Only a wFIO custodian may call this function"
Response body
...
Parameter
...
Format
...
Definition
...
status
...
String
...
OK if successful
Example
| Code Block |
|---|
{
"status": "OK"
} |