signContract

The Mobile Payment Provider (MPP) app calls the signContract API to start the user authorization process for Auto Debit payments.

Method signature

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@interface MPPAlipayPlusClient (AutoDebit)
- (void)signContract:(MPPSignContractParams *)params
   completionHandler:(void(^)(MPPSignContractResult * _Nullable result, NSError *_Nullable error))completionHandler
@end

Request parameters

Item	Type	Description	Required
params	MPPSignContractParams	Parameters that are required to initiate a contract.	M
completionHandler	iOS Block	The callback to be invoked after the signing process ends. See completionHandler for details.	M

completionHandler

Item	Type	Description	Required
result	MPPSignContractResult	The result information that is required if the signing is successful.	O
error	NSError	The error that is required if the signing fails.	O

Response parameters

N/A

Sample

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#import <MPPAlipayPlusClientAutoDebit/MPPAlipayPlusClientAutoDebit.h>

MPPSignContractParams *params = [MPPSignContractParams new];
params.authUrl = @"xxx";
params.needCallback = true; // needCallback is always a query value in authUrl, such as “xxx?needCallback=true”

[[MPPAlipayPlusClient shared] signContract:params 
                         completionHandler:^(MPPSignContractResult * _Nullable result, NSError *_Nullable error) {
             if (!error) {
             // your Logic
             }
 }];