Teeracle

---

Calls

---

add_to_whitelist

Attributes

Name	Type
data_source	DataSource
mrenclave	[u8; 32]

Python

call = substrate.compose_call(
    'Teeracle', 'add_to_whitelist', {
    'data_source': 'Bytes',
    'mrenclave': '[u8; 32]',
}
)

---

remove_from_whitelist

Attributes

Name	Type
data_source	DataSource
mrenclave	[u8; 32]

Python

call = substrate.compose_call(
    'Teeracle', 'remove_from_whitelist', {
    'data_source': 'Bytes',
    'mrenclave': '[u8; 32]',
}
)

---

update_exchange_rate

Attributes

Name	Type
data_source	DataSource
trading_pair	TradingPairString
new_value	Option<ExchangeRate>

Python

call = substrate.compose_call(
    'Teeracle', 'update_exchange_rate', {
    'data_source': 'Bytes',
    'new_value': (
        None,
        {'bits': 'u64'},
    ),
    'trading_pair': 'Bytes',
}
)

---

update_oracle

Attributes

Name	Type
oracle_name	OracleDataName
data_source	DataSource
new_blob	OracleDataBlob<T>

Python

call = substrate.compose_call(
    'Teeracle', 'update_oracle', {
    'data_source': 'Bytes',
    'new_blob': 'Bytes',
    'oracle_name': 'Bytes',
}
)

---

Events

---

AddedToWhitelist

Attributes

Name	Type	Composition
None	DataSource	Bytes
None	[u8; 32]	[u8; 32]

---

ExchangeRateDeleted

Attributes

Name	Type	Composition
None	DataSource	Bytes
None	TradingPairString	Bytes

---

ExchangeRateUpdated

The exchange rate of trading pair was set/updated with value from source. [data_source], [trading_pair], [new value]

Attributes

Name	Type	Composition
None	DataSource	Bytes
None	TradingPairString	Bytes
None	Option<ExchangeRate>	(None, {'bits': 'u64'})

---

OracleUpdated

Attributes

Name	Type	Composition
None	OracleDataName	Bytes
None	DataSource	Bytes

---

RemovedFromWhitelist

Attributes

Name	Type	Composition
None	DataSource	Bytes
None	[u8; 32]	[u8; 32]

---

Storage functions

---

ExchangeRates

Exchange rates chain's cryptocurrency/currency (trading pair) from different sources

Python

result = substrate.query(
    'Teeracle', 'ExchangeRates', ['Bytes', 'Bytes']
)

Return value

{'bits': 'u64'}

---

OracleData

Python

result = substrate.query(
    'Teeracle', 'OracleData', ['Bytes', 'Bytes']
)

Return value

'Bytes'

---

Whitelists

whitelist of trusted oracle's releases for different data sources

Python

result = substrate.query(
    'Teeracle', 'Whitelists', ['Bytes']
)

Return value

['[u8; 32]']

---

Constants

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MaxOracleBlobLen

Value

4096

Python

constant = substrate.get_constant('Teeracle', 'MaxOracleBlobLen')

---

MaxWhitelistedReleases

Max number of whitelisted oracle's releases allowed

Value

10

Python

constant = substrate.get_constant('Teeracle', 'MaxWhitelistedReleases')

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Errors

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DataSourceStringTooLong

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InvalidCurrency

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OracleBlobTooBig

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OracleDataNameStringTooLong

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ReleaseAlreadyWhitelisted

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ReleaseNotWhitelisted

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ReleaseWhitelistOverflow

Too many MrEnclave in the whitelist.

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TradingPairStringTooLong

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