curl -X POST \
--url 'https://openapi.chainup.com/api/v2/user/createUser?app_id=baaceb1e506e1b5d7d1f0a3b1622583b&data=GCJBk77n7epyOexdGZ20qvukd321TpJ62lIAtlCinW6TzHx8SIbm6evXGulO87UgLTzIWCtgupgeLJKDdZmC7msuPNBGK--Ec27WZXjuhI0gNWXcOVk5RW_VRVcyfJ1Ml-DMW8XVxZRgA2U1bt9BztiyfryzMGj8_jl1IXd5sOQfPYXulCdm70WyTJpjsDkuMSov6QUmOn-C_-HUoZ7s715EMeZ60D09uUsF0i6mKLhFZTEQZPGPeJITYSJNddAw7nvqvX2KzNc6YUeCQhEmU1Dfxp65W4e3SVOgpd_2Q-dLN1MpOlkUKwbmbpb-gEh_s68yl7ox6WSgKfCK4i_uvA'
{
    "data":"LK4D5mrtvTubDxCQM4lqyN2h8TTIkEBL_06FrrrzLrImyMO4Yuac-wdbk5VnGVfCKB5EFaUb162xXUJdTHhpA5CGBCAQKl64h_Dt10C-H8KIoap9dZI90qE4f-mAMAyjF1QzKXJ-f-R_3J3bRGqfHFBRXebh08R8MdRDssniopVOhsFUs4gBxUensKas3_ta15eFIqXPjIgJWfYQCD2DUi1gaKgmN-5Q_tgt-qXp5Y2uh3yfM4g4k71Ahyel3G8S_AktbWl2G9wU3cri3ZVQEo0faIpkX_CKsk9V1YoY5yRopvJbxNtkG9lBFxKnureAQo0KP3f1tsIMOzgcyEXPnA"
}

Common Request Parameters

ParamtypeRequiredDescription
app_idStringoptionalMerchant unique identifier
dataStringoptionalEncrypted String, decrypted format is defined as Decrypted Request Parameters
curl -X POST \
--url 'https://openapi.chainup.com/api/v2/user/createUser?app_id=baaceb1e506e1b5d7d1f0a3b1622583b&data=GCJBk77n7epyOexdGZ20qvukd321TpJ62lIAtlCinW6TzHx8SIbm6evXGulO87UgLTzIWCtgupgeLJKDdZmC7msuPNBGK--Ec27WZXjuhI0gNWXcOVk5RW_VRVcyfJ1Ml-DMW8XVxZRgA2U1bt9BztiyfryzMGj8_jl1IXd5sOQfPYXulCdm70WyTJpjsDkuMSov6QUmOn-C_-HUoZ7s715EMeZ60D09uUsF0i6mKLhFZTEQZPGPeJITYSJNddAw7nvqvX2KzNc6YUeCQhEmU1Dfxp65W4e3SVOgpd_2Q-dLN1MpOlkUKwbmbpb-gEh_s68yl7ox6WSgKfCK4i_uvA'

Common Response Parameters

ParamtypeRequiredDescription
dataStringoptionalEncrypted String decrypted format is defined as Decrypted Response Parameters
{
    "data":"LK4D5mrtvTubDxCQM4lqyN2h8TTIkEBL_06FrrrzLrImyMO4Yuac-wdbk5VnGVfCKB5EFaUb162xXUJdTHhpA5CGBCAQKl64h_Dt10C-H8KIoap9dZI90qE4f-mAMAyjF1QzKXJ-f-R_3J3bRGqfHFBRXebh08R8MdRDssniopVOhsFUs4gBxUensKas3_ta15eFIqXPjIgJWfYQCD2DUi1gaKgmN-5Q_tgt-qXp5Y2uh3yfM4g4k71Ahyel3G8S_AktbWl2G9wU3cri3ZVQEo0faIpkX_CKsk9V1YoY5yRopvJbxNtkG9lBFxKnureAQo0KP3f1tsIMOzgcyEXPnA"
}

Decrypted Response Parameters

ParamtypeRequiredDescription
codeStringRequiredStatus code
msgStringRequiredDescription of the response result
dataStringoptionalThe specific response data, the data structure is defined as Response Data Parameters

Encryption and Decryption Mode

The values of the request parameter data and the response field data are both encrypted with RSA and then encrypted with base64urlsafe.

In traditional base64 encoding, there are two symbols, + and /, which will be directly escaped by the URL. Therefore, if you want to transmit these encoded strings via URL, you need to do traditional base64 encoding first, and then replace + and / with - _ respectively. On the receiving end, do the opposite decoding action.

RSA encryption and decryption use segmented encryption.