NextToken query param encoding error

[pierre-b]

Hi guys,

The SP API returns the following error while providing a NextToken:

{ "errors": [ { "code": "InvalidInput", "message": "We could not decode your NextToken. Possible reasons include: a transmission error, improper quoting or a truncation problem.", "details": "" } ] }

The NextToken provided by Amazon was : Abjn8igatlp/YYuZQbKv1QafEPREmauvizt1MIhPYZacG7+f+fPp64jrgtdOS1N57G4NpRGNu/aHNkPWD9qzA98ytOVgN7d/KyNtf5fepe1HnywimSSQDRGmrXufpM2ZiOxqNBW1w66S68vI7Bqws+weLxD7b1CV0+mtVKXnPdiRy61Whm3WZuhTmqWGK9KSllhc4XvGqg5e0zIeaOVNezxWEXvdeDL7Zg54wKetRXLQp0zNIsrUkDRYOWseR6JecVkxA+q0fZYwE7+t4NjazyEZY027dXAVTSGshRBy6ZQghiSCZ3PIKk1DNEBSp27+sHmkcG/7LbJaHp4fabNqjZzx3vUsLaRi/IBQt3FQQzIESYt/Ti7LLVglFmAtnnBygOSv44FefAZ4FtaSjjwjko+Dl5QhYGtU3tAf+LbCLV+BA1KyEG2j/Km8ERy2ZulUV3HBz6/4NisG51E48qXehQ==

And the encoded NextToken passed in the query param by the SDK is :
NextToken=Abjn8igatlp%2FYYuZQbKv1QafEPREmauvizt1MIhPYZacG7%20f%20fPp64jrgtdOS1N57G4NpRGNu%2FaHNkPWD9qzA98ytOVgN7d%2FKyNtf5fepe1HnywimSSQDRGmrXufpM2ZiOxqNBW1w66S68vI7Bqws%20weLxD7b1CV0%20mtVKXnPdiRy61Whm3WZuhTmqWGK9KSllhc4XvGqg5e0zIeaOVNezxWEXvdeDL7Zg54wKetRXLQp0zNIsrUkDRYOWseR6JecVkxA%20q0fZYwE7%20t4NjazyEZY027dXAVTSGshRBy6ZQghiSCZ3PIKk1DNEBSp27%20sHmkcG%2F7LbJaHp4fabNqjZzx3vUsLaRi%2FIBQt3FQQzIESYt%2FTi7LLVglFmAtnnBygOSv44FefAZ4FtaSjjwjko%20Dl5QhYGtU3tAf%20LbCLV%20BA1KyEG2j%2FKm8ERy2ZulUV3HBz6%2F4NisG51E48qXehQ%3D%3D

A URL decode of the encoded token returns :
Abjn8igatlp/YYuZQbKv1QafEPREmauvizt1MIhPYZacG7 f fPp64jrgtdOS1N57G4NpRGNu/aHNkPWD9qzA98ytOVgN7d/KyNtf5fepe1HnywimSSQDRGmrXufpM2ZiOxqNBW1w66S68vI7Bqws weLxD7b1CV0 mtVKXnPdiRy61Whm3WZuhTmqWGK9KSllhc4XvGqg5e0zIeaOVNezxWEXvdeDL7Zg54wKetRXLQp0zNIsrUkDRYOWseR6JecVkxA q0fZYwE7 t4NjazyEZY027dXAVTSGshRBy6ZQghiSCZ3PIKk1DNEBSp27 sHmkcG/7LbJaHp4fabNqjZzx3vUsLaRi/IBQt3FQQzIESYt/Ti7LLVglFmAtnnBygOSv44FefAZ4FtaSjjwjko Dl5QhYGtU3tAf LbCLV BA1KyEG2j/Km8ERy2ZulUV3HBz6/4NisG51E48qXehQ==

As you can see the + characters have been converted to spaces... destroying the token.

Any idea to solve this please?

Thanks