3.6. Development using mijin Catapult(v.2)¶

Date of creation:: Nov. 21, 2025
Update Date:: Nov. 21, 2025

Blockchain development requires considerable specialised knowledge, but |mijin|is designed to enable development using familiar methodologies, allowing for straightforward integration into systems.

Using @tech-bureau/symbol-sdk enables intuitive application development with TypeScript/JavaScript.Additionally, a dedicated SDK is provided for Python developers, making it suitable for scripting and server-side automation.

The supported versions of each language’s SDK vary depending on the mijin version. Please refer to the table below.

3.6.1. SDK for TypeScript / JavaScript¶

mijin version and corresponding SDK version (TypeScript / JavaScript)¶
mijin version	SDK v2	SDK v3
1.0.3.9	2.0.6	3.3.0-mijin
1.0.3.8 以前	2.0.3-20230601	3.2.3-dev1

3.6.2. Python 用 SDK¶

mijin version and compatible SDK version (Python)¶
mijin version	Python SDK Version
1.0.3.9	3.3.0.dev0
1.0.3.8 以前	3.2.3.dev1

Note

TypeScript/JavaScript SDK は v2系とv3系で構造が異なるため、混用は避けてください。
The Python SDK does not have a v2 series; all versions are part of the v3 series.
Version 1.0.3.9 includes updates to network settings and the REST API, so please ensure you are using the correct SDK version.

3.6.2.1. How to Install the SDK¶

3.6.3. TypeScript / JavaScript¶

@tech-bureau/symbol-sdk can be installed using various package managers (npm, yarn, pnpm).

# npm
npm install @tech-bureau/symbol-sdk@3.3.0-mijin

# yarn
yarn add @tech-bureau/symbol-sdk@3.3.0-mijin

# pnpm
pnpm add @tech-bureau/symbol-sdk@3.3.0-mijin

Note

The version is specified as 3.3.0-mijin, compatible with mijin 1.0.3.9.

3.6.4. Python¶

For Python developers, techbureau-symbol-sdk-python is available on PyPI.

pip install techbureau-symbol-sdk-python==3.2.3.dev1

Note

The above is the version compatible with mijin 1.0.3.8. If you are using 1.0.3.9, please specify 3.3.0.dev0.

pip install techbureau-symbol-sdk-python==3.3.0.dev0