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QUESTION
I try to Call Smart Contract by NEAR Protocol for the first time. Please tell me how can I solve the error as following.
- I have created Testnet NEAR Account.
- I have compiled "Counter" Contract by using this example "https://github.com/near-examples/rust-counter/blob/master/contract/src/lib.rs".
- I have deployed this contract to the testnet by using "near cli", and it have been suceed.
- I call "veiw function" of near cli,Error Returned.
ANSWER
Answered 2021-Jun-13 at 06:37Counter
is not a valid account-id. Uppercase letters in accounts-id are not allowed). You need to pass the proper account-id
.
I would expected your account-id to be something of the form takahashi.testnet
or dev-1623565709996-68004511819798
(if contract was deployed using near dev-deploy
command).
This is how you can deploy to testnet using dev-deploy
, and call view function using near-cli
:
QUESTION
I have a NEAR application in which most of the methods do not transfer any tokens. Users go through the standard login flow with NEAR wallet, have their 0.25N allowance for gas, and then interact with the application.
I now have a new end-point that I want to be callable from the front-end, which expects the user to pay an amount significantly exceeding 0.25N:
...ANSWER
Answered 2021-Jun-07 at 20:56It looks like the issue is that the contract
API doesn't consider a wallet redirect. One reason might be the initialization of the contract API.
In order for a contract API to be able to redirect to a wallet, the initialization should be done with the ConnectedWalletAccount
. It can be done using the following code:
QUESTION
I'm using ReactJs to execute face-api-js
for face recognition. In the console log I'm getting the values but it is not displaying in the live video.
Unhandled Rejection (TypeError): Cannot set property 'innerHTML' of undefined
this is the error I am getting under the function handleVideoOnPlay
I'm new to the react framework it would be great if someone helps me out.
...ANSWER
Answered 2021-May-27 at 05:38Problem:
Cannot set property 'innerHTML' of undefined
Reason: canvasRef.current
becomes undefined
Before continuing, I found one thing, the line
has Ref, it should be
ref
Now,
I guess you should make use of useEffect()
as follows
QUESTION
Is there a way I can initially connect to a contract without a signer? I want like to create a user flow where the user can explore with view calls, then choose to connect their wallet at a later time.
Most examples I can find of Contract Connection code includes a wallet connected Account. docs github docs
...ANSWER
Answered 2021-May-25 at 03:30Yes! You can query the state of an account by using the providers
in near-api-js
.
Example:
QUESTION
I don't seem to be able to figure out why this is not working
My Hapi.js index.ts looks like this:
...ANSWER
Answered 2021-Mar-27 at 09:15You can do either of the following:
QUESTION
I'm using jsforce find-api in order to search for an account by DOB which is a field of type Date
.
The call to the API looks like this:
...ANSWER
Answered 2021-Mar-24 at 22:47The mistake was a combination of treating DateTime
as a Date
object together with lack of examples in the documentation of jsforce.
Finally I was able to figure it out:
QUESTION
I got a weird issue which I never experienced before and cant find a solution for this. I want to install this package with npm install but when I check its directory inside the node_modules directory, some files that are included in the github repo are not installed.
https://github.com/alpacahq/alpaca-trade-api-js
In this case, inside the lib/resources/data folder, there is no datav2 and entityv2 file. Does anyone know why that happens?
Thanks
...ANSWER
Answered 2021-Mar-10 at 21:20inside the lib/resources/data folder, there is no datav2 and entityv2 file
if you will look carefully within the repository, the only file within lib/resources/data
is bars.js
, which coincide with the package in node_modules
QUESTION
I'm trying to get Spotify albums with using Spotify API and display them with Reactjs. But there is a problem I can't manage to solve and i have checked lots of similiar problems but could not find a way yet. I'm sure I'm missing some point. So, here is the code
...ANSWER
Answered 2021-Mar-05 at 01:38You're trying to access the object this.state.albums
before it's defined by the redux state.
you can access it only after being defined. You can do it with a ternary or another solution with the same purpose.
QUESTION
so I ran into a problem when I want to sort elements within an array in React.
The problem is not with the sort logic but with React itself, so whenever I want to click a button that says 'sort by difficulty' it doesn't work. However, when I click on a 'Hide' button the same moment the lements get updated in the DOM exactly as I want.
What's causing this issue and how to solve it? Thanks
EDIT : CODE SANDBOX LINK https://codesandbox.io/s/tender-rubin-1nq0r
...ANSWER
Answered 2021-Mar-01 at 14:52This is happening because .sort(...)
doesn't return a new array but the same one i.e. it's not a new object reference. You have to explicitly do that so that React can know that I have a new object reference that means I should cause a re-render.
In hide
implementation, you're using .filter(...)
on the list
which returns a new array for you so you didn't have to do it explicitly.
Just change your sort implementation inside useAjax
hook like so :-
QUESTION
I want to make these 2 spotify api calls just once in my multi page react app. I want to pass these props to the Phases component. I want to be able to fetch the response data in 1 fetch call if that is possible like using Promise.all(). But I can't figure out how to do this with these api calls. Any help would be appreciated.
...ANSWER
Answered 2021-Feb-01 at 14:33I hope this example helps you to unterstand how to use Promise.all
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