@polywrap/schema-bind

Bind WRAP ABIs to a variety of supported languages through codegen.

Usage

`` typescript
import { BindOptions, BindOutput, bindSchema } from "@polywrap/schema-bind";
import { parseSchema } from "@polywrap/schema-parse";

const schema = fetch("schema.graphql");
const abi = parseSchema(schema);

const input: BindOptions = {
projectName: "Test",
bindLanguage: "wasm-as",
abi,
schema,
outputDirAbs: "/path/to/output/dir"
};

const output: BindOutput = bindSchema(input);
``

Details

Polywrap uses MessagePack as a common data interchange format between languages. This allows Polywrap WASM modules, authored in different languages, to be run within a single host language (JS, Rust, Python, Go, C#, C++).

MessagePack encoded data is sent between module boundaries. Decoding of the message will happen in the destination environment, using generated binding code, created by this package.

Supported Schema Types

| GraphQL Schema Type | MessagePack Type | Description |
|-|-|-|
| UInt | uint 32 | 32-bit unsigned integer. |
| UInt8 | uint 8 | 8-bit unsigned integer. |
| UInt16 | uint 16 | 16-bit unsigned integer. |
| UInt32 | uint 32 | 32-bit unsigned integer. |
| Int | int 32 | 32-bit signed integer. |
| Int8 | int 8 | 8-bit signed integer. |
| Int16 | int 16 | 16-bit signed integer. |
| Int32 | int 32 | 32-bit signed integer. |
| String | fixstr or str 8/16/32 | UTF-8 string. |
| Boolean | bool | true or false stored as 1 byte. |
| Bytes | bin 8/16/32 | array of 8-bit unsigned integer. |
| BigInt | fixstr or str 8/16/32 | UTF-8 string. |
| BigNumber | fixstr or str 8/16/32 | UTF-8 string. |
| JSON | fixstr or str 8/16/32 | UTF-8 string. |
| [Type] | fixarray or array 16/32 | Array of elements. |
| Map | Msgpack extention type | Map of key-value pairs. |
| type CustomObject {
  prop: Type
} | fixmap or map 16/32 | Structured object. |