@cosmology/ast/module/clients/helper-funcs/query-funcs.js

Cosmos TypeScript AST generation

import * as ast from "@babel/types";
/**
 *
 * @param context
 * @param service
 * @param methodKey e.g. "balance"
 * @param helperCreatorName e.g. "createGetBalance"
 * @returns
 */
export function createQueryHelperCreator(context, service, svcKey, methodKey, helperCreatorName) {
    const pkgImportName = context.ref.proto.package + '.' + svcKey;
    context.addUtil("RpcResolver");
    context.addUtil("buildQuery");
    const callExpression = ast.callExpression(ast.identifier("buildQuery"), [
        ast.objectExpression([
            ast.objectProperty(ast.identifier("encode"), ast.memberExpression(ast.identifier(service.requestType), ast.identifier("encode"))),
            ast.objectProperty(ast.identifier("decode"), ast.memberExpression(ast.identifier(service.responseType), ast.identifier("decode"))),
            ast.objectProperty(ast.identifier("service"), ast.stringLiteral(pkgImportName)),
            ast.objectProperty(ast.identifier("method"), ast.stringLiteral(methodKey)),
            ast.objectProperty(ast.identifier("clientResolver"), ast.identifier("clientResolver"), false, true),
        ]),
    ]);
    callExpression.typeParameters = ast.tsTypeParameterInstantiation([
        ast.tsTypeReference(ast.identifier(service.requestType)),
        ast.tsTypeReference(ast.identifier(service.responseType)),
    ]);
    const customHookArgumentsType = ast.tsTypeAnnotation(ast.tsTypeReference(ast.identifier("RpcResolver")));
    const arg = ast.identifier("clientResolver");
    arg.typeAnnotation = customHookArgumentsType;
    arg.optional = true;
    const arrowFuncExp = ast.arrowFunctionExpression([arg], callExpression);
    return ast.exportNamedDeclaration(ast.variableDeclaration("const", [
        ast.variableDeclarator(ast.identifier(helperCreatorName), arrowFuncExp),
    ]));
}
/**
 *
 * @param context
 * @param service
 * @param methodKey e.g. "balance"
 * @param helperCreatorName e.g. "createGetBalance"
 * @param hookName e.g. "useGetBalance"
 * @returns
 */
export function createQueryHooks(context, service, methodKey, helperCreatorName, hookName) {
    context.addUtil("buildUseQuery");
    const callExpression = ast.callExpression(ast.identifier("buildUseQuery"), [
        ast.objectExpression([
            ast.objectProperty(ast.identifier("builderQueryFn"), ast.identifier(helperCreatorName)),
            ast.objectProperty(ast.identifier("queryKeyPrefix"), ast.stringLiteral(`${methodKey}Query`)),
        ]),
    ]);
    callExpression.typeParameters = ast.tsTypeParameterInstantiation([
        ast.tsTypeReference(ast.identifier(service.requestType)),
        ast.tsTypeReference(ast.identifier(service.responseType)),
    ]);
    return ast.exportNamedDeclaration(ast.variableDeclaration("const", [
        ast.variableDeclarator(ast.identifier(hookName), callExpression),
    ]));
}