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How to use generate_service_types method in localstack

Best Python code snippet using localstack_python

scaffold.py

Source:scaffold.py

...165                return 0166        if self.is_exception:167            return 2168        return 3169def generate_service_types(output, service: ServiceModel, doc=True):170    output.write("import sys\n")171    output.write("from typing import Dict, List, Optional\n")172    output.write("from datetime import datetime\n")173    output.write("if sys.version_info >= (3, 8):\n")174    output.write("    from typing import TypedDict\n")175    output.write("else:\n")176    output.write("    from typing_extensions import TypedDict\n")177    output.write("\n")178    output.write(179        "from localstack.aws.api import handler, RequestContext, ServiceException, ServiceRequest"180    )181    output.write("\n")182    # ==================================== print type declarations183    nodes: Dict[str, ShapeNode] = {}184    for shape_name in service.shape_names:185        shape = service.shape_for(shape_name)186        nodes[shape_name] = ShapeNode(service, shape)187    # output.write("__all__ = [\n")188    # for name in nodes.keys():189    #     output.write(f'    "{name}",\n')190    # output.write("]\n")191    printed: Set[str] = set()192    visited: Set[str] = set()193    stack: List[str] = list(nodes.keys())194    stack = sorted(stack, key=lambda name: nodes[name].get_order())195    stack.reverse()196    while stack:197        name = stack.pop()198        if name in printed:199            continue200        node = nodes[name]201        dependencies = [dep for dep in node.dependencies if dep not in printed]202        if not dependencies:203            node.print_declaration(output, doc=doc)204            printed.add(name)205        elif name in visited:206            # break out of circular dependencies207            node.print_declaration(output, doc=doc, quote_types=True)208            printed.add(name)209        else:210            stack.append(name)211            stack.extend(dependencies)212            visited.add(name)213def generate_service_api(output, service: ServiceModel, doc=True):214    service_name = service.service_name.replace("-", "_")215    class_name = service_name + "_api"216    class_name = snake_to_camel_case(class_name)217    output.write(f"class {class_name}:\n")218    output.write("\n")219    output.write(f'    service = "{service.service_name}"\n')220    output.write(f'    version = "{service.api_version}"\n')221    for op_name in service.operation_names:222        operation: OperationModel = service.operation_model(op_name)223        fn_name = camel_to_snake_case(op_name)224        if operation.output_shape:225            output_shape = operation.output_shape.name226        else:227            output_shape = "None"228        output.write("\n")229        parameters = OrderedDict()230        param_shapes = OrderedDict()231        input_shape = operation.input_shape232        if input_shape is not None:233            members = list(input_shape.members)234            for m in input_shape.required_members:235                members.remove(m)236                m_shape = input_shape.members[m]237                parameters[xform_name(m)] = m_shape.name238                param_shapes[xform_name(m)] = m_shape239            for m in members:240                m_shape = input_shape.members[m]241                param_shapes[xform_name(m)] = m_shape242                parameters[xform_name(m)] = f"{m_shape.name} = None"243        if any(map(is_bad_param_name, parameters.keys())):244            # if we cannot render the parameter name, don't expand the parameters in the handler245            param_list = f"request: {input_shape.name}" if input_shape else ""246            output.write(f'    @handler("{operation.name}", expand=False)\n')247        else:248            param_list = ", ".join([f"{k}: {v}" for k, v in parameters.items()])249            output.write(f'    @handler("{operation.name}")\n')250        output.write(251            f"    def {fn_name}(self, context: RequestContext, {param_list}) -> {output_shape}:\n"252        )253        # convert html documentation to rst and print it into to the signature254        if doc:255            html = operation.documentation256            import pypandoc257            doc = pypandoc.convert_text(html, "rst", format="html")258            output.write('        """')259            output.write(f"{doc.strip()}\n")260            output.write("\n")261            # parameters262            for param_name, shape in param_shapes.items():263                # FIXME: this doesn't work properly264                pdoc = pypandoc.convert_text(shape.documentation, "rst", format="html")265                pdoc = pdoc.strip().split(".")[0] + "."266                output.write(f":param {param_name}: {pdoc}\n")267            # return value268            if operation.output_shape:269                output.write(f":returns: {operation.output_shape.name}\n")270            # errors271            for error in operation.error_shapes:272                output.write(f":raises {error.name}:\n")273            output.write('        """\n')274        output.write("        raise NotImplementedError\n")275@click.command()276@click.argument("service", type=str)277@click.option("--doc/--no-doc", default=False, help="whether or not to generate docstrings")278@click.option(279    "--save/--print",280    default=False,281    help="whether or not to save the result into the api directory",282)283def generate(service: str, doc: bool, save: bool):284    """285    Generate types and API stubs for a given AWS service.286    SERVICE is the service to generate the stubs for (e.g., sqs, or cloudformation)287    """288    from click import ClickException289    try:290        model = load_service(service)291    except UnknownServiceError:292        raise ClickException("unknown service %s" % service)293    output = io.StringIO()294    generate_service_types(output, model, doc=doc)295    generate_service_api(output, model, doc=doc)296    code = output.getvalue()297    try:298        # try to format with black299        from black import FileMode, format_str300        code = format_str(code, mode=FileMode())301    except Exception:302        pass303    if not save:304        # either just print the code to stdout305        click.echo(code)306        return307    # or find the file path and write the code to that location308    here = os.path.dirname(__file__)...

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