eosio-wasm-js

eosio-wasm-js

A utility tool that serialises EOSIO based blockchain types to a WASM hex string.

This tool may be useful for those wanting to serialise actions in JS environments for EOSIO based blockchain actions.

Setup

$ npm i eosio-wasm-js

Support

• Node.js >= 13
• Browser list > 0.5%, not OperaMini all, not IE > 0, not dead

Consider a BigInt polyfill library for safari 13.

API

• function asset
• function block_time_stamp
• function bool
• function bytes
• function checksum
• function extended_asset
• function float128
• function float32
• function float64
• function int
• function name
• function string
• function symbol
• function symbol_code
• function time_point
• function time_point_sec
• function uint
• function varint32
• function varuint32

function asset

Serialises EOSIO asset type to WASM hex string.

Parameter	Type	Description
asset_string	string	string to be serilaised.

Returns: string — Serialised hex string.

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function block_time_stamp

Convert date in ISO format to block_timestamp_type (half-seconds since a different epoch)

Parameter	Type	Description
time_String	string	ISO date format.

Returns: string — hex string.

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function bool

Serialise Boolean.

Parameter	Type	Description
boolean	string | boolean | number	true or false.

Returns: string — Hexstring

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function bytes

Serilaises byte string to WASM bytes.

Parameter	Type	Description
byte_string	string	The byte string.

Returns: string — The byte string.

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function checksum

Creates a checksum WASM hex string.

Parameter	Type	Description
byte_string	string	Hexadecimal string.
bytes	20 | 32 | 64	For checksum160, checksum256 and checksum512 respectively.

Returns: string — Checksum hex string.

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function extended_asset

Serialises an extended asset to WASM hex string.

Parameter	Type	Description
ea_string	string	Extended asset string.

Returns: string — Wasm hex string.

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function float128

Validates a little endian float 128 hex string.

Parameter	Type	Description
f128	string	Hexacecimal representation of the float128.

Returns: string — Hexstring.

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function float32

Serialises a float32 to a WASM hex string.

Parameter	Type	Description
f32	number | string	Float32 to be serialised.

Returns: string — Hex string.

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function float64

Serialises a float64 to a WASM hex string.

Parameter	Type	Description
f64	number | string	float64 to be serialised.

Returns: string — Hex string.

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function int

Serializes any signed integer (uint) to hexadecimal code.

Parameter	Type	Description
number	number | string | bigint	A signed integer.
bytes	number	number of bytes to place the int into

Returns: string — Hexstring

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function name

Serialises a EOS name into a WASM hex string.

Parameter	Type	Description
name_string	string	EOS name string.

Returns: string — hex string.

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function string

serialises string into a WASM hex string.

Parameter	Type	Description
str	string	String

Returns: string — hex string.

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function symbol

Serilaises a symbol string to a WASM hex string.

Parameter	Type	Description
symbol_string	string	To be serialised.

Returns: string — Hex string.

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function symbol_code

Serilaises a symbol code to a WASM hex string.

Parameter	Type	Description
symbol_code_string	string	To be serialised.

Returns: string — Hex string.

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function time_point

Serialises time point into WASM hex string.

Parameter	Type	Description
time_string	string	ISO date.

Returns: string — hex string of the time.

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function time_point_sec

Convert date in ISO format to time_point_sec (seconds since epoch) WASM string.

Parameter	Type	Description
time_string	string	ISO date.

Returns: string — seconds since epoch.

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function uint

Serializes any unsigned integer (uint) to hexadecimal string.

Parameter	Type	Description
number	number | string | bigint	the uint thta will be serialized
bytes	number	Number of bytes to place the uint into.

Returns: string — Hex string.

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function varint32

varint32

Parameter	Type	Description
number	number	variable unsigend integer to sign.

Returns: string — varint32 hex string.

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function varuint32

Serialises a varuint32 number to a WASM hex string.

Parameter	Type	Description
number	number	Unsigned variable-length integer, 32 bits.
buffer	Array?	Recursion transformation for the LEB128 type.

Returns: string — Varuint32 hexadecimal string.