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lightning-waitsendpay -- Command for sending a payment via a route
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==================================================================
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SYNOPSIS
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--------
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**waitsendpay** *payment\_hash* \[*timeout*\]
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DESCRIPTION
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-----------
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The **waitsendpay** RPC command polls or waits for the status of an
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outgoing payment that was initiated by a previous **sendpay**
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invocation.
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Optionally the client may provide a *timeout*, an integer in seconds,
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for this RPC command to return. If the *timeout* is provided and the
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given amount of time passes without the payment definitely succeeding or
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definitely failing, this command returns with a 200 error code (payment
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still in progress). If *timeout* is not provided this call will wait
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indefinitely.
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Indicating a *timeout* of 0 effectively makes this call a pollable query
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of the status of the payment.
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If the payment completed with success, this command returns with
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success. Otherwise, if the payment completed with failure, this command
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returns an error.
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RETURN VALUE
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------------
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On success, an object similar to the output of **listsendpays** will be
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returned. This object will have a *status* field that is the string
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*"complete"*.
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On error, and even if the error occurred from a node other than the
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final destination, the route table will no longer be updated. Use the
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*exclude* parameter of the `getroute` command to ignore the failing
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route.
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The following error codes may occur:
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- -1: Catchall nonspecific error.
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- 200: Timed out before the payment could complete.
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- 202: Unparseable onion reply. The *data* field of the error will
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have an *onionreply* field, a hex string representation of the raw
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onion reply.
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- 203: Permanent failure at destination. The *data* field of the error
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will be routing failure object.
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- 204: Failure along route; retry a different route. The *data* field
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of the error will be routing failure object.
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- 208: A payment for *payment\_hash* was never made and there is
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nothing to wait for.
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- 209: The payment already failed, but the reason for failure was not
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stored. This should only occur when querying failed payments on very
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old databases.
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A routing failure object has the fields below:
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- *erring\_index*: The index of the node along the route that reported
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the error. 0 for the local node, 1 for the first hop, and so on.
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- *erring\_node*: The hex string of the pubkey id of the node that
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reported the error.
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- *erring\_channel*: The short channel ID of the channel that has the
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error (or the final channel if the destination raised the error).
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- *erring\_direction*: The direction of traversing the
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*erring\_channel*:
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- *failcode*: The failure code, as per BOLT \#4.
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- *failcodename*: The human-readable name corresponding to *failcode*,
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if known.
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AUTHOR
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------
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ZmnSCPxj <<ZmnSCPxj@protonmail.com>> is mainly responsible.
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SEE ALSO
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--------
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lightning-sendpay(7), lightning-pay(7).
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RESOURCES
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---------
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Main web site: <https://github.com/ElementsProject/lightning>
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