# Allow Trust

Updates the “authorized” flag of an existing trust line. This must be called by the issuer of the asset.

See the [`Allow Trust` errors](https://developers.docs.bantufoundation.org/api/errors/result-codes/operation-specific/allow-trust).

 \- ATTRIBUTE - 

* asset\_type `string`

  The type of asset. Either `native`, `credit_alphanum4`, or `credit_alphanum12`.
* asset\_code `string`

  The Stellar address of the asset.
* asset\_issuer `string`

  The code for the asset.
* authorize `int`

  Flag indicating whether the trustline is authorized. 0 if the account is not authorized to transact with the asset in any way. 1 if the account is authorized to transact with the asset. 2 if the account is authorized to maintain orders, but not to perform other transactions.
* trustee `string`

  The issuing account, or source account in this instance.
* trustor `string`

  The trusting account, or the account being authorized or unauthorized.

```bash
{
  "_links": {
    "self": {
      "href": "https://expansion-testnet.bantu.network/operations/120497059836067841"
    },
    "transaction": {
      "href": "https://expansion-testnet.bantu.network/transactions/ac8dd0ddf1d047081c8e4c2a7ef9cc38a1a8af6c211184e1b16ebf2e32915d7f"
    },
    "effects": {
      "href": "https://expansion-testnet.bantu.network/operations/120497059836067841/effects"
    },
    "succeeds": {
      "href": "https://expansion-testnet.bantu.network/effects?order=desc\u0026cursor=120497059836067841"
    },
    "precedes": {
      "href": "https://expansion-testnet.bantu.network/effects?order=asc\u0026cursor=120497059836067841"
    }
  },
  "id": "120497059836067841",
  "paging_token": "120497059836067841",
  "transaction_successful": true,
  "source_account": "GCRZQVBBDAWVOCO5R2NI34YR55RO2GQXPTDUE5OZESXGZRRTAEQLKEKN",
  "type": "allow_trust",
  "type_i": 7,
  "created_at": "2020-02-03T14:30:52Z",
  "transaction_hash": "ac8dd0ddf1d047081c8e4c2a7ef9cc38a1a8af6c211184e1b16ebf2e32915d7f",
  "asset_type": "credit_alphanum4",
  "asset_code": "LSV1",
  "asset_issuer": "GCRZQVBBDAWVOCO5R2NI34YR55RO2GQXPTDUE5OZESXGZRRTAEQLKEKN",
  "trustee": "GCRZQVBBDAWVOCO5R2NI34YR55RO2GQXPTDUE5OZESXGZRRTAEQLKEKN",
  "trustor": "GDSYBYRG6NIBJWR7BLY72HYV7VM4A7WWHUJ45FI7H4Q2U2RPR3BB3CFR",
  "authorize": true
}
```