DEV Community: Jeevanjot Singh

How to interact with "MOMP" smart contract

Jeevanjot Singh — Wed, 29 Sep 2021 15:35:25 +0000

Greetings everyone,

Brief about "MOMP Network"

"MOMP" (Money Over Mail Protocol) provides a mechanism for sending money to email addresses on top of decentralized network. MOMP itself is a set of rules (Protocol) originally created by "Jeevanjot Singh" and currently implemented by momp.network. Learn more about "MOMP" from the document

Process to interact with "MOMP" smart contract

You need a supported web wallet to perform any operation for "MOMP", Currently supported wallet is Superhero and you can add it on your browser from extension marketplace, For e.g. Chrome browser wallet extension

There are some useful methods that might doesn't exist in a front-end currently. You can directly use the "MOMP" smart contract to interact with those methods.

First Steps:

For ease, Use an online editor to load the MOMP smart contract e.g. Ae studio. Visit https://studio.aepps.com/ and change your settings from Testnet to Mainnet. Select option Browser Wallet and make sure that your wallet's network is Mainnet. Look for permissions and if agree then click accept.
Now, Copy the smart contract code of "MOMP" from github link and add it in a new file inside the editor.
Now, You need to call the existing contract instead of deploying new one. The existing MOMP contract is deployed on mainnet address at ct_2uJthb5s1D8c8F8ZYMAZ6LYGWno5ubFnrmkkHLE1FBzN3JruQw. So fill this contract address the input field next to use at address and click that use at address
Now, You can see your contract under Deployed Contract section. Expand the contract to see its methods.

Calling methods

There are numerous methods that are useful for an individual to learn more about MOMP. But lets focus on some that currently you can use easily. Call Locally methods are read only methods that won't require any transaction fee and can be called with appropriate parameters ([]) to get the status of a state variable or any other information returnable.

get_base_fee (get base fee) :- It gets you the current base fee (Transaction fee - SMTP base fee) of MOMP smart contract.
get_registration_fee (get registration fee) :- It gets you current registration fee that is required to register & verify your email on top of smart contract.
get_time_for_refund_in (get time for refund in) :- It gets you current millisecond value that is being added to each payment to mark its expiry (transaction block time + returned value)
clients_balance (clients balance) [Email {hashed using Sha256}] :- Using unregistered (unverified) email (hashed with sha256 in bytes32 format), you can fetch your current balance in the smart contract.
clients_pub_key (clients pub key) [Email {hashed using Sha256}] :- Using the email (hashed with sha256 in bytes32 format), You can find public key of the email.
get_time_for_refund_in_for_payment_id (get time for refund in for payment id) [Payment id, Address of sender] :- It gets you current millisecond value (UNIX Timestamp) that show when a payment will expire (Can be claimed from both side now [Sender & Receiver])
claim refund (claim refund) [Payment Id] :- Using payment ID, Sender can claim their amount back if it is expired.
getNextQueryID :- It fetches the upcoming payment ID or query ID from Say Network's SMTP module for visual use.

Note:

In this process neither sender nor receiver will ever need to expose their email on the public blockchain network.

Learn more about this protocol from this document (AKA white paper)

How to withdraw balance of your email from smart contract using "MOMP Network"

Jeevanjot Singh — Tue, 28 Sep 2021 13:59:18 +0000

Greetings everyone,

Brief about "MOMP"

Process for withdrawing existing money using "MOMP Network"

You need a supported web wallet to perform any operation at momp.network, Currently supported wallet is Superhero and you can add it on your browser from extension marketplace, For e.g. Chrome browser wallet extension

First Steps:

Go to https://www.momp.network/#/verify and look for permissions required by the wallet. If you are agree then approve the access from your wallet for momp network.
After you approve, The basic information starts to load in the background and you will receive a notification once it's loaded. It may take some time depending on the current network response time. > You can start filling the information on the stepper fields until data loads.

After that:

In this step, Add the same public key that is currently registered with your email !
When you click register, There will be a remaining balance check. If there will be balance for your email which is still not withdrawan. Then you the withdrawal process will run by your comfirmation and complete by itself.
This will withdraw your email funds from smart contract to your registered public key with that email.

Note:

In this process the user will never need to expose their email on the public blockchain network.

Learn more about this protocol from this document (AKA white paper)

How to update public key of email using "MOMP Network"

Jeevanjot Singh — Tue, 28 Sep 2021 13:31:54 +0000

Greetings everyone,

Brief about "MOMP"

Process for updating public key using "MOMP Network"

You need a supported web wallet to perform any operation at momp.network, Currently supported wallet is Superhero and you can add it on your browser from extension marketplace, For e.g. Chrome browser wallet extension

First Steps:

Go to https://www.momp.network/#/verify and look for permissions required by the wallet. If you are agree then approve the access from your wallet for momp network.
After you approve, The basic information starts to load in the background and you will receive a notification once it's loaded. It may take some time depending on the current network response time. > You can start filling the information on the stepper fields until data loads.

After that:

In this step, Add the new public key that you want to assign to the email! For example, If last time I registered with ak_QWxf7hEM8CFPi3SmWSNTByQDKE2E5fgntPbEDwi7xvfb7SWwY with same email, This time i added the new public key that i want to receive my funds in with the email that i want to attach my public key with.
Before moving to the confirmation step, there will be a registration fee check. If you paid already then it will forward to confirmation step, else it asks to pay the registration fee for registering new public key.
After adding email to blockchain, You will also get an email on registering email account with a unique string (One Time Pin).
Add this pin on the confirmation page & click on "Register" to verify your email and check if there is any balance so far to withdraw.

After the successful attempt, Your email will become verified & from now any money sent to your email from MOMP Network will be sent to your registered wallet.

Notes:

In this process the user will never need to expose their email on the public blockchain network.
If you want to withdraw any remaining balance from smart contract sent to your email, Then you need to perform above similar steps but with existing public key instead. You can read more on withdrawal for your email here .

Learn more about this protocol from this document (AKA white paper)

How to send money on emails using "MOMP Network"

Jeevanjot Singh — Mon, 27 Sep 2021 16:33:34 +0000

Greetings everyone,

Brief about "MOMP"

Process for sending money using "MOMP Network"

You need a supported web wallet to perform any operation at momp.network, Currently supported wallet is Superhero and you can add it on your browser from extension marketplace, For e.g. Chrome browser wallet extension

First Steps:

Go to https://www.momp.network/#/ and look for permissions. If you are agree then approve the access from your wallet for momp network.
After you approve, The basic information starts to load in the background and you will receive a notification once it's loaded. It may take some time depending on the current network response time.

You can start filling the information on the stepper fields until data loads.

After that:

You can fill the details, e.g.

On first step's first field you can add your Name or Email. If you add your email then you will receive a copy of the email that will be sent to the receiver.

Click on "send" and check for confirmation logo appeared by your wallet. If you agree then you can proceed to confirm and this will send the money from the smart contract to the verified email address's public key and an email will be delivered to the receiver's email address of transaction.

If the email is not verified then the money will remain on smart contract and an email will be sent to the sender with an option to verify their email on the network (without exposing their email address) and claim their money into their personal wallet.

Notes:

In this process neither sender nor receiver will ever need to expose their email on the public blockchain network.
If you had sent money to wrong email addresss that cannot be verified then you can claim your money back after expiration date. You can read more on claiming back your unclaimed amount here (To be updated)...

Learn more about this protocol from this document (AKA white paper)

How to register & verify email using "MOMP Network"

Jeevanjot Singh — Mon, 27 Sep 2021 16:17:43 +0000

Greetings everyone,

Brief about "MOMP Network"

Process to verify email on "MOMP Network"

You need a supported web wallet to perform any operation at momp.network, Currently supported wallet is Superhero and you can add it on your browser from extension marketplace, For e.g. Chrome browser wallet extension

First Steps:

Go to https://www.momp.network/#/verify and look for permissions required by the wallet. If you are agree then approve the access from your wallet for momp network.
After you approve, The basic information starts to load in the background and you will receive a notification once it's loaded. It may take some time depending on the current network response time.

You can start filling the information on the stepper fields until data loads.

After that:

You can fill the details, e.g.
Before moving to the confirmation step, there will be a registration fee check. If you paid already then it will forward to confirmation step, else it asks to pay the registration fee.
After adding email to blockchain, You will also get an email on registering email account with a unique string (One Time Pin).
Add this pin on the confirmation page & click on "Register" to verify your email and check if there is any balance so far to withdraw.

After the successful attempt, Your email will become verified & from now any money sent to your email from MOMP Network will be sent to your registered wallet.

Notes:

In this process the user will never need to expose their email on the public blockchain network.
If you want to update your public key to a new one, Then you need to perform above similar steps but with new public key instead. You can read more on updating your email here .

Learn more about this protocol from this document (AKA white paper)

DEV Community: Jeevanjot Singh

How to interact with "MOMP" smart contract

Brief about "MOMP Network"

Process to interact with "MOMP" smart contract

First Steps:

Calling methods

Links

How to withdraw balance of your email from smart contract using "MOMP Network"

Brief about "MOMP"

Process for withdrawing existing money using "MOMP Network"

First Steps:

After that:

Links

How to update public key of email using "MOMP Network"

Brief about "MOMP"

Process for updating public key using "MOMP Network"

First Steps:

After that:

Links

How to send money on emails using "MOMP Network"

Brief about "MOMP"

Process for sending money using "MOMP Network"

First Steps:

After that:

Links

How to register & verify email using "MOMP Network"

Brief about "MOMP Network"

Process to verify email on "MOMP Network"

First Steps:

After that:

Links