Claims

addClaim

addClaim('0xb57f5f92f8931e044f59d54f7f2a445e5dd274e16599f104a61a8dd4cfa5b0fa', 'MY_KEY','0xadf488B39BFaa4254ffd4DECCF770661C1E8');

Add a claim

NOTE: value of claim should be the storage address. See set() operation on how to store data.

Parameters

1. String - Subject to add the claim
2. String - Key of the claim
3. String - Value of the claim - ie address id of data

Returns

Promise with transaction result

Example

addClaim('0xb57f5f92f8931e044f59d54f7f2a445e5dd274e16599f104a61a8dd4cfa5b0fa', '0xE4d3Df777CaD70A6b0048bc572Fd3f843751529E','ANY VALUE')

getClaim static

//static
Datum.getClaim("0x6e585cc6047a55a793d1E922afE28BaefaBcd73C","0x6e585cc6047a55a793d1E922afE28BaefaBcd73C", "0x656d61696c");

Return the value of the claim for given issuer, subject and key

Parameters

1. String - issuer that created the claim
2. String - subject/wallet address for the claim
3. String - key name of the claim

Returns

Promise

Example

getClaim("0x6e585cc6047a55a793d1E922afE28BaefaBcd73C","0x6e585cc6047a55a793d1E922afE28BaefaBcd73C", "0x656d61696c");

getClaims static

//static
Datum.getClaims("0x6e585cc6047a55a793d1E922afE28BaefaBcd73C");

Returns an array of claims object with issuer, subject, key ,value

Parameters

1. String - subject address of claims

Returns

Promise array of claims

Example

getClaims("0x6e585cc6047a55a793d1E922afE28BaefaBcd73C");

Result

[{  issuer: '0x5aB36c692D5bCD2713239307F96212110a298f3E',
    subject: '0x5aB36c692D5bCD2713239307F96212110a298f3E',
    key: 'Age',
    value: '80' } ]

getClaimsByIssuer static

//static
Datum.getClaimsByIssuer("0x6e585cc6047a55a793d1E922afE28BaefaBcd73C");

Returns an array of claims object with issuer, subject, key ,value

Parameters

1. String - issuer address of claims

Returns

Promise array of claims

Example

getClaims("0x6e585cc6047a55a793d1E922afE28BaefaBcd73C");

Result

[{  issuer: '0x5aB36c692D5bCD2713239307F96212110a298f3E',
    subject: '0x5aB36c692D5bCD2713239307F96212110a298f3E',
    key: 'Age',
    value: '80' } ]

removeClaim

removeClaim('0xb57f5f92f8931e044f59d54f7f2a445e5dd274e16599f104a61a8dd4cfa5b0fa', '0xE4d3Df777CaD70A6b0048bc572Fd3f843751529E', 'MY_KEY');

Removes a claim. Can only be done by issuer or subject of the claim.

NOTE: removing claim WILL NOT remove storage assoicated. See remove() on how to remove storage data.

Parameters

1. String - Issuer of the claim
2. String - Subject to add the claim
3. String - Key of the claim

Returns

Promise with transaction result

Example

removeClaim('0xb57f5f92f8931e044f59d54f7f2a445e5dd274e16599f104a61a8dd4cfa5b0fa', '0xE4d3Df777CaD70A6b0048bc572Fd3f843751529E')

verifyClaim

//static
Datum.verifiyClaim("0xc90a556e6381b0c6acdaf1e00e41f101e495762f","0xbddb8404281d830de5e200eb241aec3c97d885bc","0x1230000000000000000000000000000000000000000000000000000000000000")

Returns true if the claim exists and signed by the issuer, false if claim not exists or signed by someone else.

Parameters

1. String - issuer of the claim
2. String - subject of the claim
3. String - key name of the claim

Returns

Promise with true or false

Example

Datum.verifiyClaim("0xc90a556e6381b0c6acdaf1e00e41f101e495762f","0xbddb8404281d830de5e200eb241aec3c97d885bc","0x1230000000000000000000000000000000000000000000000000000000000000")

Result false