### Launch helloworld_geyser with Example Credentials

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/python/README.md

Run the helloworld_geyser script with example RPC endpoint and authentication token to fetch the latest slot number.

```bash
(venv) $ python helloworld_geyser.py --rpc-fqdn 'index.rpcpool.com' --x-token '2625ae71-0823-41b3-b3bc-4ff89d762d52'
```

--------------------------------

### Run Example Client Subscription

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/README.md

Run the TypeScript example client to subscribe to transactions for a specific token. Requires endpoint and X-Token authentication.

```bash
tsx examples/typescript/src/client.ts --endpoint <ENDPOINT> --x-token <X-TOKEN> --commitment processed subscribe --transactions TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA
```

--------------------------------

### Install and Build Project

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/docs/examples.md

Installs dependencies and builds the project in development mode. Ensure Node.js v22.14.0 or later is installed.

```bash
cd yellowstone-grpc-client-nodejs && npm install && npm build:dev
```

--------------------------------

### Install Protobuf Go Plugins

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/golang/README.md

Install the necessary Go plugins for Protocol Buffers and gRPC. These plugins are required for generating Go code from .proto files.

```bash
$ go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.35.1
$ go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@v1.5.1
```

--------------------------------

### Local Test Output Example

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/napi/README.md

Example output from running local tests using ava.

```bash
$ ava --verbose

  ✔ sync function from native code
  ✔ sleep function from native code (201ms)
  ─

  2 tests passed
✨  Done in 1.12s.
```

--------------------------------

### Install Test Package

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/napi/README.md

Install the test package using yarn.

```bash
yarn add @napi-rs/package-template
```

--------------------------------

### Install Python Dependencies

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/python/README.md

Create a virtual environment and install project dependencies using pip.

```bash
python -m venv venv
source venv/bin/activate
(venv) $ python -m pip install -U pip
(venv) $ python -m pip install -r requirements.txt
```

--------------------------------

### Install Dependencies

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/README.md

Install required Node.js dependencies for the project.

```bash
npm install
```

--------------------------------

### Run TypeScript Client Example

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/docs/examples.md

Executes a TypeScript client example to subscribe to block, slot, and transaction data. Replace placeholders with your actual endpoint and token if required.

```bash
tsx src/client.ts --endpoint "YOUR ENDPOINT HERE WITH PORT" \
  --x-token "USE YOUR TOKEN HERE IF NEEDED" \
  --commitment processed subscribe \
  --blocks --slots --transactions TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA
```

--------------------------------

### Install Golang gRPC and Protobuf Packages (DNF)

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/golang/README.md

Install the Golang gRPC and Protobuf packages using the DNF package manager. This is an alternative method for setting up dependencies on systems that use DNF.

```bash
dnf install golang-google-grpc golang-google-protobuf
```

--------------------------------

### Example Client Output

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

This shows the output of the client when subscribing to account updates. It includes details about the opened stream and received account messages.

```shell
$ cargo run --bin client -- --endpoint https://api.rpcpool.com --x-token <token> subscribe --accounts --accounts-account SysvarC1ock11111111111111111111111111111111
    Finished dev [unoptimized + debuginfo] target(s) in 0.69s
     Running `target/debug/client --accounts --account SysvarC1ock11111111111111111111111111111111`
stream opened
new message: SubscribeUpdate { filters: ["client"], update_oneof: Some(Account(SubscribeUpdateAccount { account: Some(SubscribeUpdateAccountInfo { pubkey: [6, 167, 213, 23, 24, 199, 116, 201, 40, 86, 99, 152, 105, 29, 94, 182, 139, 94, 184, 163, 155, 75, 109, 92, 115, 85, 91, 33, 0, 0, 0, 0], lamports: 1169280, owner: [6, 167, 213, 23, 24, 117, 247, 41, 199, 61, 147, 64, 143, 33, 97, 32, 6, 126, 216, 140, 118, 224, 140, 40, 127, 193, 148, 96, 0, 0, 0, 0], executable: false, rent_epoch: 0, data: [57, 29, 0, 0, 0, 0, 0, 0, 165, 160, 80, 99, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 221, 189, 80, 99, 0, 0, 0, 0], write_version: 53718 }), slot: 7481, is_startup: false })) }
new message: SubscribeUpdate { filters: ["client"], update_oneof: Some(Account(SubscribeUpdateAccount { account: Some(SubscribeUpdateAccountInfo { pubkey: [6, 167, 213, 23, 24, 199, 116, 201, 40, 86, 99, 152, 105, 29, 94, 182, 139, 94, 184, 163, 155, 75, 109, 92, 115, 85, 91, 33, 0, 0, 0, 0], lamports: 1169280, owner: [6, 167, 213, 23, 24, 117, 247, 41, 199, 61, 147, 64, 143, 33, 97, 32, 6, 126, 216, 140, 118, 224, 140, 40, 127, 193, 148, 96, 0, 0, 0, 0], executable: false, rent_epoch: 0, data: [58, 29, 0, 0, 0, 0, 0, 0, 165, 160, 80, 99, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 222, 189, 80, 99, 0, 0, 0, 0], write_version: 53725 }), slot: 7482, is_startup: false })) }
^C
```

--------------------------------

### Install Repository Pre-commit Hooks

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/README.md

Installs Git pre-commit hooks for the repository. These hooks help maintain code quality and consistency.

```bash
make install-hooks
```

--------------------------------

### Clean Build Artifacts

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/README.md

Clean any existing build artifacts before starting local development.

```bash
make clean
```

--------------------------------

### Check Golang Protobuf and gRPC Versions

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/golang/README.md

Confirm the installed versions of the Go protobuf and gRPC libraries. These are essential dependencies for the gRPC client.

```bash
go list -f '{{.Path}} {{.Version}}' -m google.golang.org/protobuf
google.golang.org/protobuf v1.35.1
go list -f '{{.Path}} {{.Version}}' -m google.golang.org/grpc
google.golang.org/grpc v1.67.1
```

--------------------------------

### Run Solana Validator with Geyser Plugin

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/README.md

Starts the Solana validator and loads the Yellowstone gRPC geyser plugin. Ensure the configuration file path is correct.

```bash
solana-validator --geyser-plugin-config yellowstone-grpc-geyser/config.json
```

--------------------------------

### Subscribe to Slot Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Subscribe to slot updates. This example uses a public endpoint and does not require a token.

```shell
npm start -- --endpoint http://sg131.rpcpool.wg:10000 \
  subscribe \
  --slots
```

--------------------------------

### Check Protobuf Compiler Version

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/golang/README.md

Verify that the Protocol Buffer compiler (protoc) is installed and check its version. This is a prerequisite for updating protofiles.

```bash
$ protoc --version
libprotoc 28.3
```

--------------------------------

### Unary GetBlockHeight Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Perform a unary call to get the current block height from the gRPC service.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  get-block-height
```

```text
response: 5188
```

--------------------------------

### Test in Local Environment

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/napi/README.md

Commands to set up, build, and test the package locally.

```bash
yarn
yarn build
yarn test
```

--------------------------------

### Print helloworld_geyser Help

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/python/README.md

Display the usage instructions and available options for the helloworld_geyser script.

```bash
(venv) $ python helloworld_geyser.py --help
```

--------------------------------

### Build Project on macOS (with dynamic lookup)

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/README.md

On macOS, you might need to run the build command with specific RUSTFLAGS to resolve dylibs at runtime and avoid linker failures.

```bash
RUSTFLAGS="-Clink-arg=-undefined -Clink-arg=dynamic_lookup" npm run build
```

--------------------------------

### Build Development Version of SDK

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/README.md

Build the development version of the SDK to reflect local changes during test runs. Use this instead of the regular 'build' command for local testing.

```bash
npm run build:dev
```

--------------------------------

### Build Project (TypeScript)

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/README.md

Build the project, which generates the gRPC client and compiles TypeScript code.

```bash
npm run build
```

--------------------------------

### Run Golang gRPC Client with SSL

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/golang/README.md

Execute the Golang gRPC client using an SSL endpoint to fetch slot information. Ensure you have the correct endpoint and an authentication token.

```bash
go run ./cmd/grpc-client/ -endpoint https://api.rpcpool.com:443 -x-token <token> -slots
```

--------------------------------

### Subscribe to Account Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Use this command to subscribe to real-time updates for specific Solana accounts. Replace '<Pubkey>' with the actual account public key.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  subscribe \
  --accounts --accounts-account "<Pubkey>"
```

--------------------------------

### Check Yellowstone gRPC Plugin Configuration

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/README.md

Verifies the configuration file for the Yellowstone gRPC plugin. This command also checks code formatting.

```bash
cargo-fmt && cargo run --bin config-check -- --config yellowstone-grpc-geyser/config.json
```

--------------------------------

### Release Package Versioning

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/yellowstone-grpc-client-nodejs/napi/README.md

Command to version the package for release. Ensure NPM_TOKEN is set in GitHub secrets.

```bash
npm version [<newversion> | major | minor | patch | premajor | preminor | prepatch | prerelease [--preid=<prerelease-id>] | from-git]

git push
```

--------------------------------

### Subscribe to Account Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Subscribe to account updates by providing the endpoint, token, and the specific account public key.

```shell
npm start -- --endpoint https://api.rpcpool.com \
  --x-token "<token>" \
  subscribe \
  --accounts --accounts-account "<Pubkey>"
```

--------------------------------

### Configure Limit Filters for gRPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/README.md

This JSON configuration demonstrates how to set limits for various filters within the gRPC service. It allows for fine-grained control over the maximum number of accounts, transactions, or blocks, and specifies rejection criteria.

```json
{
   "grpc": {
      "filters": {
         "accounts": {
            "max": 1,
            "any": false,
            "account_max": 10,
            "account_reject": ["TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"],
            "owner_max": 10,
            "owner_reject": ["11111111111111111111111111111111"]
         },
         "slots": {
            "max": 1
         },
         "transactions": {
            "max": 1,
            "any": false,
            "account_include_max": 10,
            "account_include_reject": ["TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"],
            "account_exclude_max": 10,
            "account_required_max": 10
         },
         "blocks": {
            "max": 1,
            "account_include_max": 10,
            "account_include_any": false,
            "account_include_reject": ["TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"],
            "include_transactions": true,
            "include_accounts" : false,
            "include_entries" : false
         },
         "blocks_meta": {
            "max": 1
         },
         "entry": {
            "max": 1
         }
      }
   }
}
```

--------------------------------

### Unary GetVersion RPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Retrieve version information for the Solana gRPC service. This includes client, proto, Solana, git, and rustc versions.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  get-version
```

```text
response: GetVersionResponse { version: "{\"version\":\"0.7.0+solana.1.15.2\",\"proto\":\"1.2.0+solana.1.15.2\",\"solana\":\"1.15.2\",\"git\":\"e03a47c-modified\",\"rustc\":\"1.68.0-nightly\",\"buildts\":\"2023-05-27T08:20:15.440278Z\"}" }
```

--------------------------------

### Run Golang gRPC Client with Non-SSL

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/golang/README.md

Execute the Golang gRPC client using a non-SSL endpoint to fetch block information. This is useful for development or environments where SSL is not required.

```bash
go run ./cmd/grpc-client/ -endpoint http://api.rpcpool.com:80 -x-token <token> -blocks
```

--------------------------------

### Generate gRPC Service Stubs

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/python/README.md

Generate Python stubs and data types for gRPC services using grpcio-tools. Ensure you are in the correct directory and specify the proto file paths.

```bash
python -m grpc_tools.protoc -I../../yellowstone-grpc-proto/proto/ --python_out=. --pyi_out=. --grpc_python_out=. ../../yellowstone-grpc-proto/proto/*
```

--------------------------------

### Subscribe to Slot Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

This command allows you to subscribe to new Solana slot updates. It's useful for tracking the progression of the blockchain.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  subscribe \
  --slots
```

--------------------------------

### Subscribe to Transaction Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Subscribe to transaction updates, with options to filter by vote transactions and include specific accounts. Use '<Pubkey>' for account filtering.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  subscribe \
  --transactions \
  --transactions-vote false \
  --transactions-failed false \
  --transactions-account-include "<Pubkey>"
```

--------------------------------

### Unary GetVersion Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Retrieve the version information of the gRPC service using a unary call.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  get-version
```

```text
response: { version: "{\"version\":\"0.7.0+solana.1.15.2\",\"proto\":\"1.2.0+solana.1.15.2\",\"solana\":\"1.15.2\",\"git\":\"e03a47c-modified\",\"rustc\":\"1.68.0-nightly\",\"buildts\":\"2023-05-27T08:20:15.440278Z\"}" }
```

--------------------------------

### Subscribe to Slot Updates with Commitment

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Subscribe to slot updates with a specified commitment level, such as 'processed'.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  --commitment processed \
  subscribe \
  --slots
```

--------------------------------

### Unary SubscribeReplayInfo Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Subscribe to replay information from the gRPC service using a unary call. This provides the first available replay data.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  subscribe-replay-info
```

```text
response: { firstAvailable: '390356345' }
```

--------------------------------

### Subscribe to Deshred Transaction Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Subscribe to deshredded transaction updates, which are available on Triton extension servers. This provides transaction data before Replay execution. Replace '<Pubkey>' for account filtering.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  subscribe-deshred \
  --vote false \
  --account-include "<Pubkey>"
```

--------------------------------

### Subscribe to Slot Updates with Processed Commitment

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Subscribe to slot updates with a 'processed' commitment level. This provides faster, but less finalized, slot information.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  --commitment processed \
  subscribe \
  --slots
```

--------------------------------

### Unary GetSlot RPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Fetch the current slot number on the Solana network. This indicates the latest processed slot.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  get-slot
```

```text
response: GetSlotResponse { slot: 196214563 }
```

--------------------------------

### Subscribe to Transaction Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Subscribe to transaction updates, with options to filter vote transactions, failed transactions, and include specific accounts.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  subscribe \
  --transactions \
  --transactions-vote false \
  --transactions-failed false \
  --transactions-account-include "<Pubkey>"
```

--------------------------------

### Subscribe to Deshred Transaction Updates

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Subscribe to deshred transaction updates, with options for parsed data, vote filtering, and account inclusion.

```shell
npm start -- -e="http://sg131.rpcpool.wg:10000" \
  subscribeDeshred \
  --deshred-parsed \
  --deshred-vote=false \
  --deshred-account-include "<Pubkey>"
```

--------------------------------

### Unary GetBlockHeight RPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Query the current block height of the Solana network. This returns the total number of blocks processed.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  get-block-height
```

```text
response: GetBlockHeightResponse { block_height: 178985715 }
```

--------------------------------

### Unary GetLatestBlockhash RPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Retrieve the latest blockhash information from the Solana network. This includes the slot, blockhash, and last valid block height.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  get-latest-blockhash
```

```text
response: GetLatestBlockhashResponse { slot: 196214003, blockhash: "EYo9Ct3k8nPXJfFxcmEWxN59RuvLehQ7WKqmodBJ9cRf", last_valid_block_height: 178985293 }
```

--------------------------------

### Unary Ping RPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Send a ping request to the gRPC server and expect a PongResponse. This is a basic health check.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  ping
```

```text
response: PongResponse { count: 1 }
```

--------------------------------

### Unary GetSlot Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Make a unary call to retrieve the current slot number from the gRPC service.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  get-slot
```

```text
response: 196214563
```

--------------------------------

### Unary GetLatestBlockhash Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Make a unary call to retrieve the latest blockhash information, including slot, blockhash, and last valid block height.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  get-latest-blockhash
```

```text
response: {
  slot: 5188,
  blockhash: '5N5v1HQq5EFui4yaPRBAN8cF23KWdJWhvvTnNu97JEH8',
  lastValidBlockHeight: 5175
}
```

--------------------------------

### Unary IsBlockhashValid RPC

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/rust/README.md

Check if a given blockhash is currently valid on the Solana network. Requires a blockhash as input.

```shell
cargo run --bin client -- -e "https://api.rpcpool.com" \
  --x-token "<token>" \
  is-blockhash-valid --blockhash "<blockhash>"
```

```text
response: IsBlockhashValidResponse { slot: 196214563, valid: true }
```

--------------------------------

### Unary IsBlockhashValid Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Check if a given blockhash is valid by making a unary call. Requires the blockhash as a parameter.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  is-blockhash-valid --blockhash "<blockhash>"
```

```text
response: { slot: 196214563, valid: true }
```

--------------------------------

### Unary Ping Call

Source: https://github.com/rpcpool/yellowstone-grpc/blob/master/examples/typescript/README.md

Perform a unary 'ping' call to the gRPC service to check connectivity. The response indicates success.

```shell
npm start -- -e="https://api.rpcpool.com" \
  --x-token "<token>" \
  ping
```

```text
response: 1
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.