SDK Integration
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SDK Integration
Getting Started
Onboarding Requirements
Hash Generation
Test Merchant list
Android
Android SDK Offering
PayUCheckoutPro
Core
Custom Browser
Native OTP Assist
UPI
Google Pay™
PhonePe
OlaMoney
PayU OTP Parser
FAQ Android
iOS
PayUCheckoutPro
Core
Custom Browser
OlaMoney
Native OTP Assist
UPI
PayUParams
Releasing to Apple
React-Native
PayUCheckoutPro
Non-Seamless Wrapper
TPV (beta)
FAQ iOS
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Hash Generation
Every transaction (payment or non-payment) needs a hash by the merchant before sending the transaction details to PayU. This is required for PayU to validate the authenticity of the transaction.
Hash should always be calculated at your server.

Payment Hash

Hash required to make payment.
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sha512(key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5||||||salt)
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Code samples to generate hash are present here - JAVA,PHP.

For SI Payment

When doing Recurring(SI) transaction, Payment hash need to be calculated as mentioned here​

WebService Hash

To call any PayU API, you need to generate hash from your server using following pattern :
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sha512(key|command|var1|salt)
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where
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key=YOUR KEY
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command=Api Commands
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salt= YOUR SALT
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var1= default(if you want stored cards use var1 as user_credentials else default)
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Payment Hash
WebService Hash