{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "type": "object",
    "additionalProperties": false,
    "required": [ "payment_hash", "expires_at", "bolt11", "payment_secret" ],
    "properties": {
	"bolt11": {
	    "type": "string",
	    "description": "the bolt11 string"
	},
	"payment_hash": {
	    "type": "hex",
	    "description": "the hash of the *payment_preimage* which will prove payment",
	    "maxLength": 64,
	    "minLength": 64
	},
	"payment_secret": {
	    "type": "hex",
	    "description": "the *payment_secret* to place in the onion",
	    "maxLength": 64,
	    "minLength": 64
	},
	"expires_at": {
	    "type": "u64",
	    "description": "UNIX timestamp of when invoice expires"
	},
	"warning_capacity": {
	    "type": "string",
	    "description": "even using all possible channels, there's not enough incoming capacity to pay this invoice."
	},
	"warning_offline": {
	    "type": "string",
	    "description": "there would be enough incoming capacity, but some channels are offline, so there isn't."
	},
	"warning_deadends": {
	    "type": "string",
	    "description": "there would be enough incoming capacity, but some channels are dead-ends (no other public channels from those peers), so there isn't."
	},
	"warning_private_unused": {
	    "type": "string",
	    "description": "there would be enough incoming capacity, but some channels are unannounced and *exposeprivatechannels* is *false*, so there isn't."
	},
	"warning_mpp": {
	    "type": "string",
	    "description": "there is sufficient capacity, but not in a single channel, so the payer will have to use multi-part payments."
	}
    }
}