### Automake Install Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing Automake.

```bash
#!/bin/bash

# Install Automake
apt-get update -yqq
apt-get install -yqq automake

```

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

### Postgres Install Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing PostgreSQL.

```bash
#!/bin/bash

# Install PostgreSQL 12, 13, 14
apt-get update -yqq
apt-get install -yqq postgresql

```

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

### Node.js Install Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing Node.js.

```bash
#!/bin/bash

# Install Node.js 18.x.x
apt-get update -yqq
apt-get install -yqq nodejs

```

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

### Libtool Install Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing Libtool.

```bash
#!/bin/bash

# Install Libtool
apt-get update -yqq
apt-get install -yqq libtool

```

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

### Erlang Install Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing Erlang/OTP.

```bash
#!/bin/bash

# Install Erlang/OTP 26
apt-get update -yqq
apt-get install -yqq erlang

```

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

### Elixir Install Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing Elixir.

```bash
#!/bin/bash

# Install Elixir 1.15.x
apt-get update -yqq
apt-get install -yqq elixir

```

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

### Install GMP Devel Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing GMP development files.

```bash
#!/bin/bash

# Install GMP Devel
apt-get update -yqq
apt-get install -yqq libgmp-dev

```

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

### Quick Start: Get ETH Balance

Source: https://docs.blockscout.com/base-api

This example demonstrates how to quickly get the ETH balance for a given address on the Base network using the Blockscout PRO API.

```APIDOC
## Quick Start: Get ETH Balance

### Description
Get your first API response in under 60 seconds by fetching the ETH balance for an address on Base.

### Method
`curl` (Example)

### Endpoint
`https://api.blockscout.com/v2/api?chain_id=8453&module=account&action=balance&address=0xYOUR_ADDRESS&apikey=proapi_YOUR_KEY`

### Parameters
#### Query Parameters
- **chain_id** (string) - Required - The chain ID for Base (`8453`).
- **module** (string) - Required - Specifies the module to use, e.g., `account`.
- **action** (string) - Required - Specifies the action to perform, e.g., `balance`.
- **address** (string) - Required - The Ethereum address to query.
- **apikey** (string) - Required - Your Blockscout PRO API key.

### Request Example
```bash
# Get ETH balance for an address on Base via PRO API
curl "https://api.blockscout.com/v2/api?chain_id=8453&module=account&action=balance&address=0xYOUR_ADDRESS&apikey=proapi_YOUR_KEY"
```

### Response
#### Success Response (200)
- **status** (string) - API response status ('1' for success).
- **message** (string) - API response message ('OK' for success).
- **result** (string) - The ETH balance of the address.
```

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

### GCC Compiler Example

Source: https://docs.blockscout.com/setup/requirements/requirements

Example script for installing GCC Compiler.

```bash
#!/bin/bash

# Install GCC Compiler
apt-get update -yqq
apt-get install -yqq gcc

```

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

### Install PostgreSQL on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing PostgreSQL on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install postgresql postgresql-contrib
```

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

### Install Node.js on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing Node.js on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install nodejs npm
```

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

### Install Libtool on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing Libtool on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install libtool
```

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

### Install Automake on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing Automake on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install automake
```

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

### Install Erlang/OTP on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing Erlang/OTP on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install erlang-base 
erlang-dev 
erlang-escript 
erlang-runtime-tools 
erlang-asn1 
erlang-crypto 
erlang-eldap 
erlang-ftp 
erlang-inets 
erlang-mnesia 
erlang-os-mon 
erlang-public-key 
erlang-runtime-tools 
erlang-snmp 
erlang-ssl 
erlang-syntax-tools 
erlang-tftp 
erlang-tools 
erlang-xmerl
```

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

### Install Elixir on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing Elixir on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install elixir
```

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

### Install GMP on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing GMP on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install libgmp-dev
```

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

### Install GCC Compiler on Ubuntu

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide

Example command for installing GCC Compiler on Ubuntu systems. Refer to the linked Terraform script for specific version management.

```bash
apt-get install build-essential gcc
```

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

### Quick Start: Get ETH Balance

Source: https://docs.blockscout.com/optimism-api

A quick example using curl to fetch the ETH balance for a given address on Optimism via the PRO API.

```APIDOC
## Quick Start: Get ETH Balance

```bash
# Get ETH balance for an address on Optimism via PRO API
curl "https://api.blockscout.com/v2/api?chain_id=10&module=account&action=balance&address=0xYOUR_ADDRESS&apikey=proapi_YOUR_KEY"
```

Get a free API key at [dev.blockscout.com](https://dev.blockscout.com) — required for all PRO API tiers, including free.
```

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

### Create and Migrate Database

Source: https://docs.blockscout.com/setup/deployment/manual-old-ui

Create the database and run migrations to set up the schema. Be cautious when running `mix do ecto.drop, ecto.create, ecto.migrate` in development as it will delete all data.

```bash
mix do ecto.create, ecto.migrate
```

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

### Install and Start PostgreSQL 14

Source: https://docs.blockscout.com/setup/deployment/manual-deployment-guide/macos-setup

Installs PostgreSQL version 14 using Homebrew and starts the service. This database is required for Blockscout.

```sh
brew install postgresql@14
brew services start postgresql@14
```

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

### Install Inotify-tools on Ubuntu

Source: https://docs.blockscout.com/setup/requirements/requirements

Install inotify-tools on Ubuntu using apt-get.

```bash
apt-get install inotify-tools
```

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

### Start BlockScout Server

Source: https://docs.blockscout.com/setup/configuration-options/untitled-2

Starts the BlockScout web server using Mix and Phoenix. This command is used after installing Prometheus and before starting Prometheus.

```bash
iex -S mix phx.server
```

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

### Merge Blockscout and All Configuration Files

Source: https://docs.blockscout.com/setup/deployment/ansible-deployment/deploying-blockscout

Combine 'blockscout.yml.example' and 'all.yml.example' into a single host-specific configuration file. This is a common step for setting up individual Blockscout instances.

```bash
cat host_vars/blockscout.yml.example host_vars/all.yml.example > host_vars/host.yml
```

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

### Start Grafana Service

Source: https://docs.blockscout.com/setup/configuration-options/untitled-2

Starts the Grafana service using Homebrew services. This command assumes Grafana has been installed.

```bash
brew services start grafana
```

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

### Start PostgreSQL Server

Source: https://docs.blockscout.com/setup/deployment/manual-old-ui

Start the PostgreSQL server if it is not already running. The command may vary depending on your PostgreSQL installation.

```bash
pg_ctl -D /usr/local/var/postgres start
```

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

### Run tests with Geth and Mox

Source: https://docs.blockscout.com/setup/testing

Setup for running tests with Geth and Mox.

```bash
ETHEREUM_JSONRPC_CASE=EthereumJSONRPC.Case.Geth.Mox \
ETHEREUM_JSONRPC_WEB_SOCKET_CASE=EthereumJSONRPC.WebSocket.Case.Mox \
mix test --no-start --exclude no_geth
```

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

### Launch with Geth Client

Source: https://docs.blockscout.com/setup/deployment/docker-compose-deployment

Starts Blockscout containers configured to connect to a Geth (or Reth) Ethereum JSON RPC client.

```bash
docker compose -f geth.yml up -d
```

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

### Keyset Pagination Example

Source: https://docs.blockscout.com/devs/wallet-history

Demonstrates how to use keyset pagination parameters to fetch subsequent pages of results. The `next_page_params` object from a response should be appended to the next request.

```json
{
  "items": [ ... ],
  "next_page_params": {
    "block_number": 18678766,
    "index": 119,
    "items_count": 50
  }
}
```

```bash
curl "https://api.blockscout.com/1/api/v2/addresses/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/transactions?block_number=18678766&index=119&items_count=50&apikey=YOUR_KEY"
```

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

### Launch with Erigon Client

Source: https://docs.blockscout.com/setup/deployment/docker-compose-deployment

Starts Blockscout containers configured to connect to an Erigon Ethereum JSON RPC client.

```bash
docker compose -f erigon.yml up -d
```

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

### Get ERC-20 Token Balance

Source: https://docs.blockscout.com/api-reference/account/get-erc-20-token-balance-for-a-single-address

This example demonstrates how to get the ERC-20 token balance for a single address using the Blockscout RPC API.

```APIDOC
## GET /?module=account&action=tokenbalance

### Description
Returns the token balance for a specific token contract and address

### Method
GET

### Endpoint
/?module=account&action=tokenbalance

### Parameters
#### Query Parameters
- **module** (string) - Required - Module name (must be 'account')
- **action** (string) - Required - Action name (must be 'tokenbalance')
- **contractaddress** (string) - Required - Token contract address
- **address** (string) - Required - Account address

### Response
#### Success Response (200)
- **result** (string) - Token balance

### Request Example
```
https://eth-sepolia.blockscout.com/api?module=account&action=tokenbalance&contractaddress=0x1234567890abcdef1234567890abcdef12345678&address=0xabcdef1234567890abcdef1234567890abcdef12345678
```

### Response Example
```json
{
  "status": "1",
  "message": "OK",
  "result": "135499"
}
```
```

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

### Get Token Holders Request Example

Source: https://docs.blockscout.com/api-reference/token/get-token-holders

This example demonstrates how to call the `getTokenHolders` endpoint using a GET request. You need to specify the token contract address and can optionally include pagination parameters like `page` and `offset`. API keys are optional but recommended for higher rate limits.

```http
GET /?module=token&action=getTokenHolders&contractaddress=0x123...&page=1&offset=100 HTTP/1.1
Host: eth-sepolia.blockscout.com
Accept: application/json
```

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

### Install Blockscout App SDK

Source: https://docs.blockscout.com/devs/blockscout-sdk

Install the SDK using npm or yarn.

```sh
npm install @blockscout/app-sdk
# or
yarn add @blockscout/app-sdk
```

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

### Run Docker Containers (Pre-built Image)

Source: https://docs.blockscout.com/setup/deployment/docker-compose-deployment

Launches Blockscout using a pre-built backend Docker image. This is faster if no backend customizations are needed.

```bash
docker compose up
```

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

### Start Autoscout Instance Request

Source: https://docs.blockscout.com/devs/apis/autoscout-api

Send a POST request to update the status of an instance to 'START'. Use the `instance_id` obtained from the creation step. The request body specifies the action to perform.

```text
x-api-key: YOUR_API_KEY
Content-Type: application/json
```

```json
{
  "action": "START"
}
```

```shellscript
curl -X POST https://autoscout.services.blockscout.com/api/v1/instances/your-instance-id/status:update \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "action": "START"
  }'
```

```json
{
  "status": "QUEUED",
  "deployment_id": "your-deployment-id"
}
```