envBytes32

Signature

function envBytes32(string calldata key) external returns (bytes32 value);

function envBytes32(
  string calldata key,
  string calldata delimiter
) external returns (bytes32[] memory values);

Description

Read an environment variable as bytes32 or bytes32[].

Tips

• For arrays, you can specify the delimiter used to separate the values with the delimiter parameter.

Examples

Single Value

With environment variable BYTES32_VALUE=0x00,

string memory key = "BYTES32_VALUE";
bytes32 expected = bytes32(0x0000000000000000000000000000000000000000000000000000000000000000);
bytes32 output = vm.envBytes32(key);
assert(output == expected);

Array

With environment variable BYTES32_VALUES=0x7109709ECfa91a80626fF3989D68f67F5b1DD12D,0x00,

string memory key = "BYTES32_VALUES";
string memory delimiter = ",";
bytes32[2] memory expected = [
    bytes32(0x7109709ECfa91a80626fF3989D68f67F5b1DD12D000000000000000000000000),
    bytes32(0x0000000000000000000000000000000000000000000000000000000000000000)
];
bytes32[] memory output = vm.envBytes32(key, delimiter);
assert(keccak256(abi.encodePacked((output))) == keccak256(abi.encodePacked((expected))));