Library
We start with the library for RentOnZilliqa. We declare the one_msg helper function. The source code can be found here.
Message Codes
Then we get to creating a handful of message codes we will use to communicate with the frontend. The codes are of type Int32.
The codes are grouped into three categories:
Account Codes
These codes are general codes that apply to all users that communicate with the contract (the source code).
| Name | Code | Description | Type |
|---|---|---|---|
user_created |
01 |
Successfully created user | Int32 |
user_exists |
02 |
User already exists | Int32 |
user_does_not_exist |
03 |
User does not exist | Int32 |
user_is_not_owner |
04 |
Cannot update/claim commission as user is not owner | Int32 |
commission_claimed |
05 |
Commission claimed by owner | Int32 |
commission_updated |
06 |
Commission updated by owner | Int32 |
night_duration_updated |
07 |
Night Duration updated by owner | Int32 |
Host Account Codes
These codes are codes specifically used to communicate after actions relating to host accounts (the source code).
| Name | Code | Description | Type |
|---|---|---|---|
listing_created |
11 |
Successfully created listing | Int32 |
listing_updated |
12 |
Successfully updated listing | Int32 |
listing_deleted |
13 |
Successfully deleted listing | Int32 |
rent_claimed |
14 |
Successfully claimed rent from listing | Int32 |
rent_empty |
15 |
No accumulated rent for listing being claimed | Int32 |
rent_not_empty |
16 |
Cannot delete listing as it has accumulated rent | Int32 |
user_is_host |
17 |
Cannot book listing because user is host | Int32 |
user_is_not_host |
18 |
Cannot manage listing because sender is not host | Int32 |
Renter Account Codes
These codes are codes specifically used to communicate after actions relating to renter accounts (the source code).
| Name | Code | Description | Type |
|---|---|---|---|
listing_booked |
21 |
Successfully booked listing | Int32 |
listing_unavailable |
22 |
Cannot book listing because it is rented | Int32 |
user_is_renter |
23 |
Cannot create listing as user is a renter account | Int32 |
wrong_amount_sent |
24 |
Cannot book listing as amount is wrong | Int32 |
listing_does_not_exist |
25 |
Cannot book listing because it does not exist | Int32 |
listing_details_missing |
26 |
Listing details are missing | Int32 |
Additional Constants
We define a few more additional constants for use within the contract. We create constants for storing the account roles. As well as some constants for ease of use. (the source code).
| Name | Code | Type |
|---|---|---|
user_role_renter |
0 |
Uint32 |
user_role_host |
1 |
Uint32 |
one |
1 |
Uint128 |
zero |
0 |
Uint128 |
true |
True |
Bool |
false |
False |
Bool |