Set up your account, test mode and an API key

# Nothing to install: cURL comes with macOS, Linux and Windows.curl --version

npm install qbitflow

pip install "qbitflow>=3,<4"

go get github.com/QBitFlow/qbitflow-go-sdk/v3

composer require qbitflow/qbitflow-php:^3.0

# Every request sends your API key. The start-up check: what is this key, and which mode is it in?curl https://api.qbitflow.app/v2/me \  -H "X-API-Key: $QBITFLOW_API_KEY"# 200: { "credential": "apiKey", "role": "admin", "space": { "test": true, … }, … }

// One client per API key, shared by the whole program. A blank key, one not starting with// sk_, or one with a space or a control character, throws a ValidationError (nothing is sent).const client = new QBitFlow(process.env.QBITFLOW_API_KEY ?? ''); // The recommended start-up check: what is this key, and which mode is it in? An// AuthenticationError for an unknown or revoked key.const me = await client.me();console.log(`${me.role} key, test mode: ${me.space?.test}`);

# One client per API key, shared by the whole program. ValidationError: not an sk_… key.client = qbitflow.QBitFlow(os.environ["QBITFLOW_API_KEY"]) # The recommended start-up check: what is this key, and which mode is it in?me = client.me()  # AuthenticationError for an unknown or revoked keyif me.space is not None:    print(f"{me.space.organization_name}, role {me.role}, test mode {me.space.test}")

// One client per API key, shared by the whole program: it is safe for concurrent use.client, err := qbitflow.NewClient(os.Getenv("QBITFLOW_API_KEY"))if err != nil {	log.Fatal(err) // a *qbitflow.ValidationError: no key, or not an sk_… key} // The recommended start-up check: what is this key, and which mode is it in?me, err := client.Me(ctx)if err != nil {	log.Fatal(err) // a *qbitflow.AuthenticationError for an unknown or revoked key}if me.Space != nil {	fmt.Printf("%s, role %s, test mode %v\n", me.Space.OrganizationName, me.Role, me.Space.Test)}

// One client per API key, shared by the whole application.$client = new \QBitFlow\QBitFlow(apiKey: (string) getenv('QBITFLOW_API_KEY')); // The recommended start-up check: which space and mode is this key in?$me = $client->me(); // an AuthenticationException for an unknown or revoked keyprintf("%s, role %s, %s mode\n", $me->space?->organizationName ?? '?', $me->role ?? '?', $me->space?->test ? 'test' : 'live');

// QBITFLOW_API_KEY (required), and QBITFLOW_BASE_URL and QBITFLOW_ON_BEHALF_OF when set.const client = QBitFlow.fromEnv(); // Explicit options override the environment and add the others.const patient = QBitFlow.fromEnv({ timeout: 60_000, maxRetries: 5 });

# QBITFLOW_API_KEY (required), QBITFLOW_BASE_URL and QBITFLOW_ON_BEHALF_OF when set.client = qbitflow.QBitFlow.from_env(timeout=10)  # explicit options override the environment

// QBITFLOW_API_KEY (required), QBITFLOW_BASE_URL and QBITFLOW_ON_BEHALF_OF (when set);// the options given here override them.client, err := qbitflow.NewClientFromEnv(qbitflow.WithTimeout(10 * time.Second))if err != nil {	log.Fatal(err) // a *qbitflow.ValidationError naming QBITFLOW_API_KEY when it is not set}

// QBITFLOW_API_KEY (required), and QBITFLOW_BASE_URL and QBITFLOW_ON_BEHALF_OF when set, read from// getenv(), $_ENV or $_SERVER (a .env loaded by phpdotenv works).$client = \QBitFlow\QBitFlow::fromEnv(); // Named arguments override the environment and set the other options.$client = \QBitFlow\QBitFlow::fromEnv(timeout: 10.0, maxRetries: 5);