[api] Get broadcast tx many-outputs

[olemis]

[GET] /api/transactions/broadcast/many-outputs/{operationId}

See [GET] /api/capabilities

Should return broadcasted transaction by operation ID . All transactions with many
outputs, that were broadcasted by the [POST] /api/transactions/broadcast should be available here.

Response:

{
// Operation ID.
“operationId”: “guid”,
// State of the transaction
// enum values:
//
// -  inProgress : transaction is being in-progress
// -  completed : transaction is completed for sure. When
// transaction is switched to the completed state, 
// amount of this transaction should be already subtracted from
// the balance returned by the  [GET] /api/balances , 
// for outgoing transactions
// -  failed : transaction is failed
“state”: “enum”,
 // Transaction moment as ISO 8601 in UTC
“timestamp”: “datetime”,
// Source address
“fromAddress”: “string”,
// Destinations.
// Should be non null if the  state is  Completed.
“outputs”: [
{
// Destination address
“toAddress”: “string”,
// Actual amount that is transferred to the
//  toAddress . Integer as string, aligned
// to the asset accuracy. Actual value can be
// calculated as
// x = amount / (10 ^ asset.Accuracy)
“amount”: “string”
} ],
//  Fee. Is integer as string, aligned
   // to the asset accuracy. Actual value can be
   // calculated as
   // x = sourceFee * (10 ^ asset.Accuracy)
// Should be non empty if the  state is  Completed
“fee”: “string”,
   // Transaction hash as base64 string.
   // Can be empty
// Should be non empty if the  state is  Completed
    “hash”: “string”,
// Error description
// Can be empty
// Should be non empty if the  state is  Error
“error”: “string”,
// Error code.
// Can be empty.
// Should be non empty if the state is Failed.
// enum values:
// -  unknown : any error that does not fit another codes.
// -  amountIsTooSmall : amount is too small to execute
// transaction
// -  notEnoughBalance : transaction can’t be executed due
// to balance insufficiency on the source address.
// Should be non empty if the  state is  Error
“errorCode”: “enum”,
// Incremental ID of the moment, when the transaction
// state changing is detected. It should be the same
// sequence as for block in the  [GET] /api/balances
// response. In other words block number/height.
    “block”: integer64
}

Errors:

* `204 No content`  - specified transaction not found

[cbermudez97]

In the Errors for the 204 the response is a string or it should use a default JSON response such as:

{
     code: 204,
     message: 'specified transaction not found'
}