DEV Community

Cover image for The Complete Guide to Full Stack Solana Development with React, Anchor, Rust, and Phantom

The Complete Guide to Full Stack Solana Development with React, Anchor, Rust, and Phantom

Nader Dabit on September 15, 2021

Building Full Stack dapps with React, Solana, Anchor, and Phantom wallet. In The Complete Guide to Full Stack Ethereum Development I did...
Collapse
 
danmt profile image
Daniel Marin

Really nice read,

Just one tiny thing, when using Anchor it's recommended to use useAnchorWallet hook instead of useWallet. Some wallets don't support signing txs, if you provide such a wallet to the Provider constructor you'll get runtime errors.

I guess you're aware of that, just in case somebody has issues.

Collapse
 
haodev007 profile image
Holmes

Hi, Daniel.

If I use useAnchorWallet instead of useWallet, can I get AnchorError via any solana wallets?
When I have called rpc api from solana program on Frontend, I need to get AnchorError in try-catch cause.
But I can see AnchorError on browser console(via solfare wallet) but I cannot catch the error. Any thoughts?

Thanks! Have a nice day~

Collapse
 
alfonzomillions profile image
Alfonzo

Great post!

One thing though in the 1st test, you will need to declare the variable "_baseAccount" before you can assign it.

just add "let _baseAccount" in the describe test block.

Also I had to turn off the solana-test-validator for the tests to pass for some reason. Just thought I'd post just incase anyone ran into a similar issue!

Collapse
 
danmt profile image
Daniel Marin

I believe this happens because Anchor tests spin up a test validator instance. I know somewhere in the Anchor tutorial docs it's explained. Just make sure to turn off the test validator when running the test suite and you should be ready to go.

Collapse
 
marcinkozuchowski profile image
Marcin Kożuchowski

man, saved my life!

Collapse
 
breadandwater profile image
Adrian Paniagua Sanchez

You man made my day! Thanks a lot, I was trying to figure out why the tests are getting errors and errors... Adding this line of code and also stopping the solana-test-validator made my test work! Thanks!

Collapse
 
saxenism profile image
Rahul Saxena

You could also go for anchor test --skip-local-validator

Collapse
 
mrslappy profile image
mrslappy

Thankyou, this had me fcked for ages

Collapse
 
3lii06 profile image
Ali ₿

thx for posting appreciate it ran into the same issues XD

Collapse
 
hypeman profile image
hype • Edited

If you end up with

Module not found: Error: Can't resolve './adapter' in '/Users/me/Desktop/mysolanaapp/app/node_modules/@solana/wallet-adapter-bitkeep/lib'
Did you mean 'adapter.js'?
BREAKING CHANGE: The request './adapter' failed to resolve only because it was resolved as fully specified
(probably because the origin is strict EcmaScript Module, e. g. a module with javascript mimetype, a '*.mjs' file, or a '*.js' file where the package.json contains '"type": "module"').
The extension in the request is mandatory for it to be fully specified.
Add the extension to the request." 
Enter fullscreen mode Exit fullscreen mode

Error, its probably because of create-react-app using "react-scripts": "5.0.0", in order to fix - downgrade to "react-scripts": "^4.0.3" or do manual webpack hacking
source: giters.com/solana-labs/wallet-adap...
and github.com/reduxjs/redux/issues/4174

Collapse
 
mcintyre94 profile image
mcintyre94

This Alchemy tutorial is a really good guide to the manual webpack hacking: alchemy.com/blog/how-to-polyfill-n...

You only need these overrides:

Object.assign(fallback, {
    "crypto": require.resolve("crypto-browserify"),
    "stream": require.resolve("stream-browserify"),
  })
Enter fullscreen mode Exit fullscreen mode
Collapse
 
shoaib7889 profile image
Muhammad Shoaib

Saved

Collapse
 
walkre profile image
walkre • Edited

I changed "react-scripts": "5.0.0" into "react-scripts": "4.0.3" and I got the following error at Building the React app when I run npm start.
Anyone could help me?

Failed to compile.

./node_modules/@solana/wallet-adapter-base/lib/esm/signer.js 16:16
Module parse failed: Unexpected token (16:16)
File was processed with these loaders:
 * ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
|           ...sendOptions
|         } = options;
>         signers?.length && transaction.partialSign(...signers);
|         transaction = await this.signTransaction(transaction);
|         const rawTransaction = transaction.serialize();
Enter fullscreen mode Exit fullscreen mode
Collapse
 
mengni profile image
How

I followed the dowgrade instruction for all dependencies, but still got the following error:

Failed to compile.

./src/App.js
Attempted import error: 'PhantomWalletAdapter' is not exported from '@solana/wallet-adapter-wallets'.

Could someone help with this? Thanks!

Collapse
 
jdguzmans profile image
jdguzmans

@walkre I am having the same error, did you solve this?

Thread Thread
 
walkre profile image
walkre

Sadly, no.

Thread Thread
 
jdguzmans profile image
jdguzmans

with these dependencies it worked for me
...
"@solana/wallet-adapter-base": "^0.7.1",
"@solana/wallet-adapter-react": "^0.13.1",
"@solana/wallet-adapter-react-ui": "^0.6.1",
"@solana/wallet-adapter-wallets": "^0.11.3",
"@solana/web3.js": "^1.31.0",
...
"react-scripts": "4.0.3",

Thread Thread
 
walkre profile image
walkre

That worked for me too.
Thank you very much!!!

Collapse
 
chillnarmadillo profile image
chillnArmadillo

Cheers mate! Made my day.

Collapse
 
khrysaoar profile image
Khrysaoar • Edited

This is really nice for developers like me who are new to blockchain apps development.
It's a very informative tutorial!

But I'm currently having trouble at the first Hello World build.
When everything is set and I run npm start inside the mysolanaapp/app folder, I started getting lots of error in regards to the @solana/wallet-adapter-react @solana/wallet-adapter-react-ui @solana/wallet-adapter-wallets @solana/wallet-adapter-base

Example of one error is:
ERROR in ./src/App.js 20:0-16
export 'getPhantomWallet' (imported as 'getPhantomWallet') was not found in '@solana/wallet-adapter-wallets' (module has no exports)

Collapse
 
khrysaoar profile image
Khrysaoar

I solved this by running npm install inside the mysolanaapp\app before running npm start. Thank you so much!!

Collapse
 
chillnarmadillo profile image
chillnArmadillo

Awesome tutorial!

Still having the same issue though as described by @khrysaoar.
The npm install did not get the job done for me.

Hints anyone?
Thank you very much!

Thread Thread
 
chillnarmadillo profile image
chillnArmadillo

Resolved as mentioned by @hypeman.
Changed "react-scripts": "5.0.0" to "react-scripts": "4.0.3"

Thread Thread
 
0cv profile image
Christophe Vidal

thank you it helped! And then I faced the next error with BitKeepWalletAdapter which could not be imported. The solution was to downgrade the following dependencies:

...
    "@solana/wallet-adapter-base": "^0.7.1",
    "@solana/wallet-adapter-react": "^0.13.1",
    "@solana/wallet-adapter-react-ui": "^0.6.1",
    "@solana/wallet-adapter-wallets": "^0.11.3",
    "@solana/web3.js": "^1.31.0",
...
Enter fullscreen mode Exit fullscreen mode

it feels like Solana tooling is breaking dependencies on a weekly basis :-(

Collapse
 
khrysaoar profile image
Khrysaoar

@dabit3 Hi, I hope you can help me or someone. Thank you so much!

Collapse
 
ahmedali profile image
Ahmed Ali

One of the most useful Solana related tutorials. Thank you!
I have couple of questions though:

  • At this point I am getting an AccountNotProgramOwned error which I can understand why, but I don't know how to fix
  • How can we change the program so that it maintains the state between browser sessions? i.e if I close the browser, re-open and connect my wallet, it would restore my last state instead of starting from scratch?
Collapse
 
egemengol profile image
Egemen Göl

Have you managed to solve the AccountNotProgramOwned error? I seem to stuck on that error as well.

Collapse
 
thalesbmc profile image
Thales Brederodes

local storage.

Collapse
 
0cv profile image
Christophe Vidal • Edited

sounds like a terrible idea for anything beyond a demo. What if the user clears his cookies or use another browser, then he loses his account data and starts from new? I could imagine that a base account could be generated from the public key of the provider/user to have something deterministic which can be safely retrieved and reused

EDIT: the method PublicKey.createWithSeed based on the user address, the program ID and a deterministic storage key that can be hardcoded in the front end app, is actually the solution to this

Thread Thread
 
thalesbmc profile image
Thales Brederodes

I agree, just for demo purpose. Thanks for sharing the right way.

Collapse
 
zhbadya profile image
Roman Zhbadynskyi

Very clear tutorial, thanks!
Need some help.
I've follow 'Building Hello World' part and deployed program to localhost cluster.
After frontend calling program.rpc.create method and Phantom wallet approving I recieve

Transaction simulation failed: Error processing Instruction 0: custom program error: 0xa7

Account have enought balance, any suggestions?

Collapse
 
phoenixdevguru profile image
Legendary Phoenix • Edited

I am also getting this issue. I updated the lib.rs and Anchor.toml files with programID.

Here are the steps I've done.

anchor build
Enter fullscreen mode Exit fullscreen mode

And this returned the programID in the form of public key.

solana address -k target/deploy/example2-keypair.json
>BEPhkwFSf3m5Daz5LZPZhBbeVBkvY3vKnGRiWtNwFn54
Enter fullscreen mode Exit fullscreen mode

Replaced the program id in lib.rs and Anchor.toml

// lib.rs
use anchor_lang::prelude::*;

declare_id!("BEPhkwFSf3m5Daz5LZPZhBbeVBkvY3vKnGRiWtNwFn54");

#[program]
mod example2 {
    use super::*;

... ...
Enter fullscreen mode Exit fullscreen mode
// Anchor.toml
[programs.localnet]
example2 = "BEPhkwFSf3m5Daz5LZPZhBbeVBkvY3vKnGRiWtNwFn54"

[registry]
url = "https://anchor.projectserum.com"

[provider]
cluster = "localnet"
wallet = "~/.config/solana/id.json"

[scripts]
test = "mocha -t 1000000 tests/"
Enter fullscreen mode Exit fullscreen mode
anchor deploy
Enter fullscreen mode Exit fullscreen mode

I already checked the programID I am using in the app, and it matches to above one.

// App.js
  async function initialize() {    
    const provider = await getProvider();
    /* create the program interface combining the idl, program ID, and provider */
    const program = new Program(idl, programID, provider);
    console.log(program.programId.toBase58());
Enter fullscreen mode Exit fullscreen mode

But I am still getting this issue when I am trying to call the initialize() function.

Transaction simulation failed: Error processing Instruction 0: custom program error: 0xa7 
    Program BEPhkwFSf3m5Daz5LZPZhBbeVBkvY3vKnGRiWtNwFn54 invoke [1]
    Program 11111111111111111111111111111111 invoke [2]
    Program 11111111111111111111111111111111 success
    Program log: Custom program error: 0xa7
    Program BEPhkwFSf3m5Daz5LZPZhBbeVBkvY3vKnGRiWtNwFn54 consumed 5512 of 200000 compute units
    Program BEPhkwFSf3m5Daz5LZPZhBbeVBkvY3vKnGRiWtNwFn54 failed: custom program error: 0xa7
Enter fullscreen mode Exit fullscreen mode

I am really not sure why this happens and it's bothering me for days. Please help me if you have any idea.

Collapse
 
proto133 profile image
Peter Roto

Did you fund the wallet?

Collapse
 
halimabergaoui profile image
halimabergaoui

Hey, same problem here. did you solve this?

Collapse
 
zhbadya profile image
Roman Zhbadynskyi

I've carefully checked everything step-by-step and it works. I think my mistake was in

solana address -k target/deploy/mysolanaapp-keypair.json
Enter fullscreen mode Exit fullscreen mode

cause of different app name

Collapse
 
ebushi profile image
e-武士

Great Tutorial, thanks for posting ... Having a little trouble in a particular spot though.

Not sure why but I'm getting this error whenever I type 'anchor test' or 'anchor deploy' . 👇

'Error: Not a directory (os error 20)'

Does anyone know what this means ?

Collapse
 
anderbuendia profile image
anderb

I think that you need to install rust. I did that and then it works!. Use the next command in the terminal to do it:

curl --proto '=https' --tlsv1.2 -sSf sh.rustup.rs | sh
source $HOME/.cargo/env
rustup component add rustfmt

Collapse
 
ntirinigasr profile image
Michael Ntiriniga Michael Senior

Hey, did you solve it I'm encountering the same problem

Collapse
 
franciscogmm profile image
Francisco Mendoza

I keep on getting this for the hello world app. I'm a bit stuck tbh.

1) mysolanaapp
Creates a counter):
Error: 101: Fallback functions are not supported
at Function.parse (node_modules/@project-serum/anchor/dist/cjs/error.js:40:20)
at Object.rpc as create
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async Context. (tests/mysolanaapp.js:13:5)

Collapse
 
fred227 profile image
Frédéric Lesage

hi, CAPITAL letters are not supported for function name in your rust on-chain program.
I get the same error when I use some.

Collapse
 
youngmahesh profile image
Mahesh

For me it was a combination of underscore and number, function name exchange1 is valid but exchange_1 is giving Fallback functions are not supported error

Collapse
 
franciscogmm profile image
Francisco Mendoza

nvm! i tried turning off the test validator and it succeeded :)

Collapse
 
yushoo profile image
kique

This is because anchor test runs the local ledger as well right? Just ran into this issue lol.

Collapse
 
deven96 profile image
Diretnan Domnan

Just the guide I was looking for!

Collapse
 
biiishal profile image
bishal • Edited

For anyone coming to this in 2022 with anchor-cli 0.22.1, you want to replace ProgramResult with updated Result<()>

docs.rs/anchor-lang/latest/anchor_...
rather than
docs.rs/anchor-lang/0.18.0/anchor_...

Also, for others who might have a run in with this error message Error: failed to send transaction: Transaction simulation failed: Attempt to load a program that does not exist while running the tests. Check out this github.com/project-serum/anchor/is...

You might want to turn off your solana-test-validator process, delete your node_modules and do a fresh yarn install, and finally try the anchor test. The issue seems to be when the name of a mod is changed the tests fails, which made sense in my case because I was going with a different name for my project (anchor_crud instead of mysolanaapp).

Collapse
 
quinncuatro profile image
Henry Quinn

In case anyone else was having a problem getting all the base tools set up on Ubuntu, I threw together a shell script to install everything so you can jump straight to writing code!

gist.github.com/Quinncuatro/2ef56e...

Collapse
 
stepanbokhanov profile image
alphadev

why I cant see anchor installation guide?
anchor-lang.com/docs/installation
I followed this guide but I got error.
error: failed to run custom build command for ring v0.16.20

Caused by:
process didn't exit successfully: C:\Users\Baymax\AppData\Local\Temp\cargo-installgjndxS\release\build\ring-bfe791dd4e257bbd\build-script-build (exit code: 101)
--- stdout
OPT_LEVEL = Some("3")
TARGET = Some("x86_64-pc-windows-msvc")
HOST = Some("x86_64-pc-windows-msvc")
CC_x86_64-pc-windows-msvc = None
CC_x86_64_pc_windows_msvc = None
HOST_CC = None
CC = None
CFLAGS_x86_64-pc-windows-msvc = None
CFLAGS_x86_64_pc_windows_msvc = None
HOST_CFLAGS = None
CFLAGS = None
CRATE_CC_NO_DEFAULTS = None
CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")
DEBUG = Some("false")
aes_nohw.c

Collapse
 
lunchboxav profile image
Adityo Pratomo

thank you for the guide! just what I'm looking for.

additional info, if anyone is using WSL, to run the test-ledger command succesfully, make sure you're in ~ directory instead of the default mount directory, e.g /mnt/c/Users...

Collapse
 
josephani profile image
Joseph Ani

Hello all,
I go to the point of running the anchor test and encountered errors, can someone help me out. Thanks

Image description

Collapse
 
kimchishi profile image
kimchi-shi

Replace it with "Result<()>"

Collapse
 
josephani profile image
Joseph Ani

Thanks Kimchi-shi, now am encountering the following errors.
Image description

Collapse
 
rwreynolds profile image
Rick Reynolds

Great tutorial. Got me started from scratch.

On the first test however I am receiving the following error. Any thoughts?

Failed to run test: mocha -t 1000000 tests/: No such file or directory (os error 2)

Collapse
 
dimfeld profile image
Daniel Imfeld

I ran into this as well, and in my case the problem was that anchor test expects mocha to be installed globally (npm i -g mocha or equivalent), which I forgot to do.

Collapse
 
rwreynolds profile image
Rick Reynolds

Never mind. It appears to have been an ID10T issue.

Collapse
 
0_tw1tter profile image
Name

Just for future adventurers,

Was the problem that you hadn't changed directory into example1 or example2?

Thread Thread
 
koenrad profile image
Koenrad MacBride

I just ran into the same problem and found this post while trying to solve it.

My problem was that I had the npm anchor package installed globally (which I did before I realized that it doesn't work on the M1 mac currently). Uninstalling it fixed the issue. (of course you also need to build anchor for it to work properly on the M1)

npm uninstall -g @project-serum/anchor-cli
Enter fullscreen mode Exit fullscreen mode
Collapse
 
dangjing9999 profile image
Jing Dang

I have a issue when solana app is created with anchor as following:
anchor --version
Only x86_64 / Linux distributed in NPM package right now.
Trying globally installed anchor.
Failed to get version of global binary: Error: spawnSync anchor ENOENT

Collapse
 
dabit3 profile image
Nader Dabit

Yes, looks like you need to install anchor using Cargo:

cargo install --git https://github.com/project-serum/anchor --tag v0.17.0 anchor-cli --locked
Enter fullscreen mode Exit fullscreen mode
Collapse
 
nsandomeno profile image
Nicholas Sandomeno

Should one take issue to the first two lines in the output from this comment? Does it indicate the NODE_PATH variable is not set properly @dabit3 ?

Collapse
 
atkinew0 profile image
Eli

Fantastic to have a working example Solana program to refer to thank you!

Just one issue I ran into deploying my program- the npm module with clusterApiUrl seems to be named @solana/web3.js and leaving off the .js didn't work for me.

Collapse
 
dabit3 profile image
Nader Dabit

Hey, thanks Eli, just updated to fix this!! Thank you for the heads up.

Collapse
 
mrslappy profile image
mrslappy • Edited

Hey there, thanks for your guide

I seem to be having an issue running the tests from the hello world project. Whenever I run anchor test I get the following error:

Transaction simulation failed: Attempt to load a program that does not exist

anchor.workspace is an empty object when running the test.

Hoping you can help me solve this as I cannot find anything about this anywhere

Collapse
 
girrihere profile image
Girri Palaniyapan
  1. When running the test, check the programID on the CLI.
  2. Fill that programID inside lib.rs: declare_id!("INSERT_PROGRAM_ID");
  3. Fill that programID inside the anchor.toml file as well.

This fixed the bug for me

Collapse
 
digitalfuturestold profile image
Mike Heavers

How do you check the programID on the CLI?

Collapse
 
kunkka0822 profile image
Kunkka0822

Hello.

In my experience, you should deploy program before testing. Please run "anchor deploy" before "anchor test".
When deploying, you should set program id. I hope my experience help you. Happy coding!

Collapse
 
jackrobsonalpha profile image
Jack Robson

Does anybody know if it is possible to sign an Anchor transaction with a Phantom wallet?

the example signs using the baseAccount keypair

but when using Phantom, we don't have the keypair, we sign the transactions...

Any thoughts?

Collapse
 
ikeda1729 profile image
ikeda1729

Thank you for great post.

When I set the network to devnet,
const network = clusterApiUrl('devnet');
I got the error;
Transaction simulation failed: This account may not be used to pay transaction fees.

Could anyone help?

Collapse
 
krishnapsftware profile image
Krishna-Psftware

Even i was facing the same issue, but I hardcoded the devnet url.

Collapse
 
tabishauthornate profile image
Tabish-Authornate

hardcoding the devnet solved the issue?

Thread Thread
 
krishnapsftware profile image
Krishna-Psftware

yes.it got resolved. But this tutorial is very helpful.

Thanks for the Nader

Collapse
 
raduc4 profile image
Raduc4

Can i use go instead rust?

Collapse
 
kelvinkirima014 profile image
Kelvin Kirima

I don't think so. Solana programs compile to BPF bytecode which, last I checked, Go doesn't compile to. Other languages you could use are C and C++.

Collapse
 
raduc4 profile image
Raduc4

I've really fall in love with rust

Thread Thread
 
yunggenius profile image
geniusyinka

haha, in just 4 days :)

Collapse
 
jchs profile image
jchs

At the end of part 1, the app.js generates the following error for me:

Error: Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:

  1. You might have mismatching versions of React and the renderer (such as React DOM)
  2. You might be breaking the Rules of Hooks
  3. You might have more than one copy of React in the same app See reactjs.org/link/invalid-hook-call for tips about how to debug and fix this problem.

Not sure what is the issue here...
if I do npm ls react:

futureoffrance@ /mnt/c/Users/unkn0wn/solana/futureoffrance
├─┬ @solana/wallet-adapter-react-ui@0.6.1
│ ├─┬ react-dom@17.0.2
│ │ └── react@17.0.2 deduped
│ └── react@17.0.2
└─┬ @solana/wallet-adapter-react@0.13.1
└── react@17.0.2 deduped

So I see I have react 2 times, but isn't that normal? It's from different modules. I couldn't remove just one there I think...

Any help appreciated
Thank you

Collapse
 
merlox profile image
merlox

you're probaby using useWallet or useState outside of a functional component. Make sure they are inside

Collapse
 
magnum6actual profile image
magnum6actual

Learning anchor and getting it going just by following patterns. I don't fully understand what's going on underneath, though. For example, what is 'info when creating structs? In this line:

pub struct Create<'info>

I'm assuming 'info is pointing to some Anchor struct definition - but unsure which because it appears pretty much everywhere regardless of what's being created. Or here:

pub base_account: Account<'info, BaseAccount>

Same question - and are we overloading with the fields from BaseAccount as well? Trying to learn rust & anchor at the same time, so not sure if this is an anchor question or rust question.

Collapse
 
magnum6actual profile image
magnum6actual

To answer my own question, 'info is a rust parameter for managing lifetime of references. The single quote is the operator and "info" is just a variable name (could be anything). All references tagged with 'info must be active until all are complete. More here: blog.logrocket.com/understanding-l...

Collapse
 
fred227 profile image
Frédéric Lesage

hi nader, I just wanted to say thank you for your work as it was a great source of inspiration for me.
I ve made my best to test solana :
dev.to/fred227/thewheel-a-first-ex...
Of course your great article is mentioned in my article.
thanks a lot.
frédéric

Collapse
 
thanhvk profile image
thanhvk

It's very helpful.
I hope you will write a guide about NFT in the future.

Collapse
 
0xdjole profile image
Djole

This is exactly what I am looking for right now :D

Collapse
 
merlox profile image
merlox

I'm gonna write one if you guys want

Collapse
 
digitalfuturestold profile image
Mike Heavers

Typo:

it("Creates a counter)", async () => {

should be:

it("Creates a counter", async () => {

Collapse
 
pramish37 profile image
Pramish Mehta • Edited

I am running into

TypeError: Cannot read property 'env' of undefined

problem, before running command "anchor deploy". Anyone had the same problem?

Collapse
 
devmonsterblock profile image
DevMonster

in tests/mysolanaapp.js I changed:

// const provider = new anchor.AnchorProvider();
const provider = new anchor.getProvider();

Collapse
 
lakshmankashyap profile image
Lakshman

It's working. thanks for help

Collapse
 
shoaib7889 profile image
Muhammad Shoaib

Helped

Collapse
 
hamicch profile image
Hayatu Sanusi

Saved me, Thanks!

Collapse
 
krishnapsftware profile image
Krishna-Psftware

Hi Everyone,

I have a doubt is there any chance to create a solana api for invoking this api into frontend application which is built on reactjs. Can any one help me, how to make this solana api .

Collapse
 
javiasilis profile image
Jose

It just popped up inside Chrome's Feed in my phone and I've been enjoying to read this a lot.

Thank you so much for taking the time to write this. Rust is a big challenge to learn, and Solana docs aren't as clear as one may like. There's lot of back and forth reading as the solana 101 article you've linked.

I wanted to ask for anyone who can answer me, from the following paragraph:

"validators use Not Bittorrent to fetch blocks and dont need to wait for all the pieces to presume correctness. they also claim to offload data to Not Filecoin so validators can run light clients but someone in their discord told me they never implemented that so idk"

What does the author mean by "Not BitTorrent" and "Not Filecoin". I know both, but I don't get to which protocol or service he's referring to. Google hasn't helped, either.

Collapse
 
waglik profile image
waglik

Is it possible for base account not to be generated each time? I wanted to use key/pair that I used for deploying the contract but it failed. What is the right way to do it if I want to persist data for the users?

Collapse
 
johnamcconnell profile image
CHIΞFMCCONNΞLL.ΞTH

I think there is a link in the article to make it happen but here is a possible solution.

In the src directory just make a file called createKeyPair.js and add this code:

// Shoutout to Nader Dabit for helping w/ this!
// twitter.com/dabit3

const fs = require('fs')
const anchor = require("@project-serum/anchor")

const account = anchor.web3.Keypair.generate()

fs.writeFileSync('./keypair.json', JSON.stringify(account))

Then inside your app run:
node createKeyPair.js
which should create a keypair.json (which is what holds the keypair for persistence)

Then in the App.js import the json file
import kp from './keypair.json'

and then whereever in your App.js you are calling:
let baseAccount = Keypair.generate();

Just replace with the following:

const arr = Object.values(kp._keypair.secretKey)
const secret = new Uint8Array(arr)
const baseAccount = web3.Keypair.fromSecretKey(secret)

That should be it. now it should be persistent on loading for anyone connected to your app.

Collapse
 
malai_23 profile image
M.Malai

I am at the react stage. However I have some issues when I click on the create counter function. This is the error I get: index.js:1 Transaction simulation failed: Attempt to load a program that does not exist

Collapse
 
kunkka0822 profile image
Kunkka0822

Hello.

In my experience, you should deploy program before testing. Please run "anchor deploy" before "anchor test".
When deploying, you should set program id. I hope my experience help you. Happy coding!

Collapse
 
jar_l profile image
Yaroslav

Hello!
I'm interested if there is a common approach of combinig Redux (or other state managers) and Solana integration in React applications?
Why most cases of React-Solana integration are using Context API with hooks?
What are the best practices and why?

Collapse
 
rustysamdev profile image
RustySamDev

Encountered this error showing that ProgramResult is not found in the scope.
Please how do I solve it?

Collapse
 
niico100 profile image
Nick Donnelly • Edited

'solana-test-validator' was working fine a couple of weeks ago.
I changed nothing.
Now I get 'Aborted (core dump)'
I'm on Ubuntu latest in a Virtual Box VM running on Windows 11 on a very new 8 Core AMD Razer Blade 14.
Why? How to fix?

Collapse
 
mengni profile image
How

I followed the dowgrade instruction for all dependencies, but still got the following error. Could someone help with it? Thanks!

Failed to compile.

./src/App.js
Attempted import error: 'PhantomWalletAdapter' is not exported from '@solana/wallet-adapter-wallets'.

Collapse
 
stevembao profile image
SteveMBao

Your article is very detailed, and it is of great help to me, thank you very much.

Collapse
 
proadik profile image
Адиль

Great article!

Is there any way to reconnect to phantom wallet after page refresh using react.js?

Collapse
 
sohrab profile image
Sohrab

create-react-app now comes with React 18.x. The versions in package.json have to be downgraded to 17.x, which is required by the wallet node packages.

Collapse
 
metadiego profile image
Diego Olalde

What a great post, thank you for putting it together!

Collapse
 
dgczhh profile image
dgczhh

Very Good!

Collapse
 
lakshmankashyap profile image
Lakshman

Error: Your configured rpc port: 8899 is already in use

Collapse
 
flashdebugger profile image
Justin Bennett

Thank you so much for this. If you don't mind, can you please write a tutorial for full stack avalanche development?

Collapse
 
proadik profile image
Адиль

Is there any way to reconnect to wallet after page refresh? I've seen it on Metaplex example, but can't reproduce it on my react app. Help pls!

Collapse
 
merlox profile image
merlox

It does reconnect if you setup the autoConnect parameter like so:

<WalletProvider wallets={wallets} autoConnect>
Enter fullscreen mode Exit fullscreen mode
Collapse
 
thedineshk24 profile image
Dinesh Katariya

Thanks for sharing

Collapse
 
haodev007 profile image
Holmes • Edited

Appreciate for your guide.
I have learned something many from this guide.
I will follow and subscribe.
Looking forward to your more guides.
Thanks!, Holmes

Collapse
 
nakshatrasinghh profile image
Nakshatra Singh

dev-to-uploads.s3.amazonaws.com/up...

Hi can u help me out? I'm getting this errro

Collapse
 
taweechaiscg profile image
taweechai-scg

Save my life!, thank yoy for sharing.

Collapse
 
franciscogmm profile image
Francisco Mendoza

Anyone come across this issue when running npm start?

Failed to compile.

./src/App.js
Module not found: Can't resolve '@solana/wallet-adapter/react-ui/styles.css' in '/Users/

Collapse
 
nakshatrasinghh profile image
Nakshatra Singh
Collapse
 
alfieqashwa profile image
alfieqashwa

First of all. Thank you for making me interesting about blockchain and web3. Will you have plan to make this tutorial on youtube? I'd love to watch it.

Collapse
 
rustysamdev profile image
RustySamDev • Edited

I encountered an error showing that "ProgramResult" is not found in the scope.
Please How do I solve it?

Collapse
 
snowdev1205 profile image
SnowDev

It is very wonderful course.
I am grateful to you.

Collapse
 
sharif331 profile image
sharif khan

If someone wants to read the reviews of solana in turkish
tr.binbits.com/sol-coin-yorum-sola...

Collapse
 
thatgroot profile image
Rashid Iqbal

can you also write an article on how to do custom things like whitelisting, dynamic transfer fee, anti snipe etc

Collapse
 
bennekrouf profile image
Bennekrouf

Issue with provider import with last Anchor versions. Here is a fix :

medium.com/illumination/export-pro...

Collapse
 
transonhy96 profile image
transonhy96 • Edited

Great post!
But instead of the String, how can i use another struct?
for example a Vec of Foo

Collapse
 
smalllei profile image
small-lei

run anchor build error message:

help me:
Image description

Collapse
 
mat profile image
mat

hi, i get an error when i try Hello World, Any idea what i doing wrong ?
"Transaction simulation failed: This account may not be used to pay transaction fees"

Collapse
 
kunkka0822 profile image
Kunkka0822

Hello.

In my experience, you should deploy program before testing. Please run "anchor deploy" before "anchor test".
When deploying, you should set program id. I hope my experience help you. Happy coding!

Collapse
 
medadrufus profile image
MedadRufus

Fantastic Tutorial! Shows everything needed to get started, from on-chain programs to browser interface. I got both parts working. Many thanks!!

Collapse
 
hungtv236exe profile image
hungtv236exe

Relate to phantomwallet, I think problem in lib wallet-adapter-wallets, so I change to use in wallet-adapter-phantom, it's ok, also I don't need to change "react-scripts": "5.0.0" to 4.0.3

//import { PhantomWalletAdapter } from '@solana/wallet-adapter-wallets';
import { PhantomWalletAdapter } from '@solana/wallet-adapter-phantom';

Collapse
 
kartik16447 profile image
kartik16447

anchor init mysolanaapp --javascript
Error: yarn install failed: program not found
how to resolve this

Collapse
 
mr_t2337 profile image
Tai 'Mr. T' Truong

Anchor installation link is broken. Use this one: gist.github.com/WrRaThY/1df3030ea7...

Collapse
 
mr_t2337 profile image
Tai 'Mr. T' Truong

Just figured out project-serum repo moved/redirects to coral-xyz. So installation guide is here:
coral-xyz.github.io/anchor/

Collapse
 
sharif331 profile image
sharif khan

Awesome , You did it well.