The value of Vout in my decoderaw transaction result is different from the size I entered in getwallet transaction

Question

decoderawtrawnsaction:

"value" : 2999999998.99998,
  "n" : 1,

getwallettransaction:

{
    "amount" : -1,
    "fee" : -0.000022,
    "confirmations" : 11,

The real result of decoderaw transaction should be 29999998.99999978, which shows only 2999999998.9999998.

Answer 1

You're bumping up here against the limits of JSON's precision for representing floating point numbers. In this case you may want to consider using a transaction decoding library on the application side (any bitcoin transaction decoding library should work), and extracting the 64-bit raw integer quantities directly.